ScrubCrypt

Created the Sunday 19 March 2023. Updated 1 month, 3 weeks ago.

ScrubCrypt is a malware obfuscation and encryption framework, derived from the earlier JLaive Batchfuscator crypter. It is designed to aid cybercriminals in evading detection and analysis by using a variety of techniques to conceal and protect the malicious software.

ScrubCrypt is advertised on cybercrime forums to employ encryption, code morphing, and (allegedly) polymorphism to create obfuscated malware payloads that are challenging to reverse-engineer and detection.

The Batch files generated by ScrubCrypt contain a Base64 encoded, AES-128-CBC encrypted and gzip compressed payload, which is executed / reflectively loaded.


Technique Identifier

U1430


Detection Rules

Contributors

Additional Resources

External Links

The resources provided below are associated links that will give you even more detailed information and research on current evasion technique. It is important to note that, while these resources may be helpful, it is important to exercise caution when following external links. As always, be careful when clicking on links from unknown sources, as they may lead to malicious content.


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