_   _         __  _  __                    _
| | | |       / / (_) \ \                  | |
| | | |_ __  | |   _   | | _ __   __ _  ___| | _____ _ __
| | | | '_ \/ /   | |   \ \ '_ \ / _` |/ __| |/ / _ \ '__|
| |_| | | | \ \   | |   / / |_) | (_| | (__|   <  __/ |
 \___/|_| |_|| |  |_|  | || .__/ \__,_|\___|_|\_\___|_|
              \_\     /_/ | |
                          |_|

The usage of runtime packers by malware authors is very common, as it is a technique that helps to hinder analysis. Furthermore, packers are a challenge for antivirus products, as they make it impossible to identify malware by signatures or hashes alone.

In order to be able to analyze a packed malware sample, it is often required to unpack the binary. Usually this means, that the analyst will have to manually unpack the binary by using dynamic analysis techniques (Tools: OllyDbg, x64Dbg). There are also some approaches for automatic unpacking, but they are all only available for Windows. Therefore when targeting a packed Windows malware the analyst will require a Windows machine. The goal of our project is to enable platform independent automatic unpacking by using emulation.

• UPX: Cross-platform, open source packer
• ASPack: Advanced commercial packer with a high compression ratio
• PEtite: Freeware packer, similar to ASPack
• FSG: Freeware, fast to unpack

Install r2 and YARA

pip3 install -r requirements.txt
python3 unipacker.py

You will then be presented with the file opening prompt. After selecting a sample, you land in the Un{i}packer shell where you can control the emulation. For more information on available commands refer to the help command.