Created
November 7, 2017 04:05
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Applies an x64dbg .1337 patch file to a binary in radare2. Call with: #!pipe ./r21337patch.py /path/to/patch.1337
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#!/usr/bin/env python | |
import r2pipe | |
import sys | |
r2 = r2pipe.open() | |
# r2 base address | |
delta = 0x400000 | |
def patchByte(addr, oldbyte, newbyte): | |
print "[-] Patching byte at addr: {} {}->{}".format(hex(addr), oldbyte, newbyte) | |
r2.cmd("wx {} @ {}".format(newbyte, hex(addr))) | |
res = r2.cmd("p8 1 @ {}".format(hex(addr))) | |
if res != newbyte: | |
print "[!] Error writing byte at {}".format(hex(addr)) | |
# Check file permissions | |
if r2.cmd("i~mode[1]").find("w") < 0: | |
print "Please open file in write mode (oo+)" | |
quit() | |
# Check args | |
if len(sys.argv) != 2: | |
print "Please run script with path to patch file" | |
quit() | |
with open(sys.argv[1], 'r') as f: | |
for line in f: | |
if not line.startswith(">"): | |
line = line.rstrip("\n") | |
split = line.split(":") | |
addr = int(split[0], 16) + delta | |
bytesplit = split[1].split("->") | |
patchByte(addr, bytesplit[0], bytesplit[1]) |
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Hello, can I ask a question?
Can you tell me why delta size is 0x400000?
What you mean in "r2 base address" ?