Radare2

Radare2 is a portable framework for reverse engineering and analyzing binaries. It is actually a rewrite from the scratch of radare -- a forensics tool.

(Download link is at the end of this article)

It consists of the following command-line utilities:

radare2

rabin2

rasm2

rahash2

radiff2

rafind2

ragg2

rarun2

rax2

It is the core of of the hexadecimal editor and debugger. It allows you to open a number of input/output sources as if they were simple, plain files, including disks, network connections, kernel drivers, processes under debugging, and so on.

Radare2 implements an advanced command line interface for moving around a file, analyzing data, disassembling, binary patching, data comparison, searching, replacing, visualizing. It can be scripted with a variety of languages, including Ruby, Python, Lua, and Perl.

Rabin2

It allows you to extract information from executable binaries, such as ELF, PE, Java CLASS, and Mach-O. rabin2 is used by the core to get exported symbols, imports, file information, cross references (xrefs), library dependencies, sections, etc.

Rasm2

It is a command line assembler and disassembler for multiple architectures (including Intel x86 and x86-64, MIPS, ARM, PowerPC, Java, and MSIL).

Rahash2

An implementation of a block-based hash tool. From small text strings to large disks, rahash2 supports multiple algorithms, including MD4, MD5, CRC16, CRC32, SHA1, SHA256, SHA384, SHA512, par, xor, xorpair, mod255, hamdist, or entropy. rahash2 can be used to check the integrity of, or track changes to, big files, memory dumps, and disks.

Radiff2

It is a binary diffing utility that implements multiple algorithms. It supports byte-level or delta diffing for binary files, and code-analysis diffing to find changes in basic code blocks obtained from the radare code analysis, or from the IDA analysis using the rsc idc2rdb script.

Rafind2

It is a program that allows you to find byte patterns in files.

Ragg2

A frontend for r_egg. ragg2 compiles programs written in a simple high-level language into tiny binaries for x86, x86-64, and ARM.

Rarun2

A launcher for running programs within different environments, with different arguments, permissions, directories, and overridden default file descriptors.

Rarun2 is useful for:

Crackmes
Fuzzing
Test suites

Rax2

A minimalistic mathematical expression evaluator for the shell that is useful for making base conversions between floating point values, hexadecimal representations, hexpair strings to ASCII, octal to integer, etc. It also supports endianness settings and can be used as an interactive shell if no arguments are given.