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binnim
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Added support for nim shellcode format

main
John Hammond 2023-06-28 01:37:05 -04:00
parent dd4e34280a
commit f0ca9ef01c
2 changed files with 59 additions and 15 deletions
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1
.gitignore vendored Normal file
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@ -0,0 +1 @@
binnim

73
src/binnim.nim
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@ -4,7 +4,7 @@ import os
import streams
import strutils
proc binnim(filenames: seq[string], width: int = 20, quotes: bool = true) =
proc binnim(filenames: seq[string], width: int = 20, quotes: bool = true, format: string = "c") =
try:
if filenames.len == 0:
raise new_exception(Exception, "You must supply a filename.")
@ -15,30 +15,73 @@ proc binnim(filenames: seq[string], width: int = 20, quotes: bool = true) =
continue
var file_stream = streams.new_file_stream(filename, fmRead)
var file_size = cast[int](os.get_file_size(filename))
var counter = 0
while not file_stream.at_end():
if counter == 0:
if quotes:
stdout.write "\""
var character = file_stream.read_str(1)
stdout.write "\\x" & strutils.to_lower(strutils.to_hex(character))
counter += 1
if width != 0:
if counter >= width:
case format:
of "c":
while not file_stream.at_end():
if counter == 0:
if quotes:
stdout.write "\""
stdout.write "\n"
counter = 0
var character = file_stream.read_str(1)
stdout.write "\\x" & strutils.to_lower(strutils.to_hex(character))
counter += 1
if width != 0:
if counter >= width:
if quotes:
stdout.write "\""
stdout.write "\n"
counter = 0
of "nim":
stdout.write("var shellcode: array[" & strutils.int_to_str(file_size) & ", byte] = [\nbyte ")
while not file_stream.at_end():
var character = file_stream.read_str(1)
stdout.write "0x" & strutils.to_lower(strutils.to_hex(character)) & ", "
counter += 1
if width != 0:
if counter >= width:
stdout.write "\n"
counter = 0
file_stream.close()
if quotes:
stdout.write "\""
case format:
of "c":
if quotes:
stdout.write "\""
of "nim":
stdout.write " ]"
except:
stderr.write_line("[ERROR] " & get_current_exception_msg() & "\n")
when is_main_module:
import cligen; dispatch(binnim)
#var shellcode: array[296, byte] = [
# byte 0xfc,0x48,0x83,0xe4,0xf0,0xe8,0xc0,0x00,0x00,0x00,0x41,0x51,0x41,0x50,0x52,
# 0x51,0x56,0x48,0x31,0xd2,0x65,0x48,0x8b,0x52,0x60,0x48,0x8b,0x52,0x18,0x48,
# 0x8b,0x52,0x20,0x48,0x8b,0x72,0x50,0x48,0x0f,0xb7,0x4a,0x4a,0x4d,0x31,0xc9,
# 0x48,0x31,0xc0,0xac,0x3c,0x61,0x7c,0x02,0x2c,0x20,0x41,0xc1,0xc9,0x0d,0x41,
# 0x01,0xc1,0xe2,0xed,0x52,0x41,0x51,0x48,0x8b,0x52,0x20,0x8b,0x42,0x3c,0x48,
# 0x01,0xd0,0x8b,0x80,0x88,0x00,0x00,0x00,0x48,0x85,0xc0,0x74,0x67,0x48,0x01,
# 0xd0,0x50,0x8b,0x48,0x18,0x44,0x8b,0x40,0x20,0x49,0x01,0xd0,0xe3,0x56,0x48,
# 0xff,0xc9,0x41,0x8b,0x34,0x88,0x48,0x01,0xd6,0x4d,0x31,0xc9,0x48,0x31,0xc0,
# 0xac,0x41,0xc1,0xc9,0x0d,0x41,0x01,0xc1,0x38,0xe0,0x75,0xf1,0x4c,0x03,0x4c,
# 0x24,0x08,0x45,0x39,0xd1,0x75,0xd8,0x58,0x44,0x8b,0x40,0x24,0x49,0x01,0xd0,
# 0x66,0x41,0x8b,0x0c,0x48,0x44,0x8b,0x40,0x1c,0x49,0x01,0xd0,0x41,0x8b,0x04,
# 0x88,0x48,0x01,0xd0,0x41,0x58,0x41,0x58,0x5e,0x59,0x5a,0x41,0x58,0x41,0x59,
# 0x41,0x5a,0x48,0x83,0xec,0x20,0x41,0x52,0xff,0xe0,0x58,0x41,0x59,0x5a,0x48,
# 0x8b,0x12,0xe9,0x57,0xff,0xff,0xff,0x5d,0x48,0xba,0x01,0x00,0x00,0x00,0x00,
# 0x00,0x00,0x00,0x48,0x8d,0x8d,0x01,0x01,0x00,0x00,0x41,0xba,0x31,0x8b,0x6f,
# 0x87,0xff,0xd5,0xbb,0xe0,0x1d,0x2a,0x0a,0x41,0xba,0xa6,0x95,0xbd,0x9d,0xff,
# 0xd5,0x48,0x83,0xc4,0x28,0x3c,0x06,0x7c,0x0a,0x80,0xfb,0xe0,0x75,0x05,0xbb,
# 0x47,0x13,0x72,0x6f,0x6a,0x00,0x59,0x41,0x89,0xda,0xff,0xd5,0x43,0x3a,0x5c,
# 0x77,0x69,0x6e,0x64,0x6f,0x77,0x73,0x5c,0x73,0x79,0x73,0x74,0x65,0x6d,0x33,
# 0x32,0x5c,0x63,0x61,0x6c,0x63,0x2e,0x65,0x78,0x65,0x00 ]