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Day: March 6, 2022

Crypter Malware: A Deep Dive Into NSIS-Based Crypters

We have been observing that malware is being distributed via NSIS-based crypter. Malware such as FormBook, AgentTesla, GULoader, just to name a few, have been using NSIS as their loader. We have seen several ways of obfuscation implemented with the installer that decrypts and directly loads the malware into memory