A powerful and user-friendly binary analysis platform!
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angr is a platform-agnostic binary analysis framework developed by the Computer Security Lab at UC Santa Barbara and their associated CTF team, Shellphish.


angr is a suite of Python 2 libraries that let you load a binary and do a lot of cool things to it:

  • Disassembly and intermediate-representation lifting
  • Program instrumentation
  • Symbolic execution
  • Control-flow analysis
  • Data-dependency analysis
  • Value-set analysis (VSA)

The most common angr operation is loading a binary: p = angr.Project('/bin/bash') If you do this in IPython 5.x LTS or earlier, you can use tab-autocomplete to browse the top-level-accessible methods and their docstrings.

The short version of "how to install angr" is mkvirtualenv angr && python2 -m pip install angr.


angr does a lot of binary analysis stuff. To get you started, here's a simple example of using symbolic execution to get a flag in a CTF challenge.

import angr

project = angr.Project("angr-doc/examples/defcamp_r100/r100", auto_load_libs=False)

def print_flag(state):
    print("FLAG SHOULD BE:", state.posix.dump_fd(0))


Quick Start