yarjor

Useful commandline arguments

1. -d: Debug the file/pid given
2. -A: Analyze at load time (should be pretty much always used in small binaries if no problems are expected)
3. -q: Quiet mode (process commands and quit)
4. -w: Write mode enabled for patching
5. -i: Interpret a r2 script
6. -n: Bare load - do Not load executable
7. -c [command; command;]: Execute commands (can be paired with -q)
8. -r [file]: Use rarun2 config file for debugging
9. -R [directive]: Specify rarun2 directives for debugging

yarjor

import angr
import r2pipe

ENDBR64 = 'f30f1efa'
ENDBR32 = 'f30f1efb'

def endbr(state):
    print "Hooked 'endbr' instruction"

p = angr.Project('./simple')

yarjor

crack_zip() {
	for i in $(cat /usr/share/dict/cracklib-small); do
    	unzip -oP $i $1 &> /dev/null && echo $i && break
    done
}

crack_zip encrypted.zip

yarjor

cd /d D:\git\radare2
git clean -xdf
git pull
activate r2
"%ProgramFiles(x86)%\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvars64.bat"
meson build --buildtype release --backend vs2017 --prefix %cd%\dest
msbuild build\radare2.sln /p:Configuration=Release /p:Platform=x64 /m
meson install -C build --no-rebuild

yarjor

def rol(val, r_bits, max_bits):
  return (val << r_bits % max_bits) & (2 ** max_bits - 1) | ((val & (2 ** max_bits - 1)) >> (max_bits - (r_bits % max_bits)))

def ror(val, r_bits, max_bits):
  return ((val & (2 ** max_bits - 1)) >> r_bits % max_bits) | (val << (max_bits - (r_bits % max_bits)) & (2 ** max_bits - 1))

yarjor

int __cdecl main(int argc, const char **argv, const char **envp)
{
  char *src; // [esp+Ch] [ebp-Ch]

  puts("\n  .:: Megabeets ::.\n");
  puts("Show me what you got?");
  __isoc99_scanf("%ms", &src);
  if ( beet(src) )
    puts("Success!\n");
  else

yarjor

$1 = New-WinUserLanguageList en-Us
$1.Add("he")
Set-WinUserLanguageList $1

yarjor

from hashlib import md5
import struct

secret = 'secret'
data = 'data'
fullstring = secret + data
signature = md5(fullstring).hexdigest()
# Known are signature and data!

original_padding = 'I' + \

yarjor

find .git/objects/ -type f | cut -c14-15,17-20 | xargs -I {} sh -c "echo '\nFor {}:'; git cat-file -p {}"

yarjor

nc -lt -p 4444