Flerken

Flerken Introduction Command Line Obfuscation CLOB has been proved to be a non-negligible factor in fileless malware or malicious actors that are "living off the land". With dozens of obfuscation tools seen in the wild, by contrast few proper countermeasures can be found. In this talk, we present...

Invoke-ArgFuscator

░█░█▄░█░█▒█░▄▀▄░█▄▀▒██▀░▒░ ▄▀▄▒█▀▄░▄▀▒▒█▀░█▒█░▄▀▀░▄▀▀▒▄▀▄░▀█▀░▄▀▄▒█▀▄░ ░█░█▒▀█░▀▄▀░▀▄▀░█▒█░█▄▄░▀▀░█▀█░█▀▄░▀▄█░█▀░▀▄█▒▄██░▀▄▄░█▀█░▒█▒░▀▄▀░█▀▄░ Invoke-ArgFuscator Invoke-ArgFuscator は、Windows、Linux、macOS で一般的なシステム標準の実行可能ファイル向けの難読化コマンドラインの生成を支援する、オープンソースのクロスプラットフォーム PowerShell モジュールです。 👉 ArgFuscator...

Obfuscated Command Line Detection Using Machine Learning

This blog post presents a machine learning ML approach to solving an emerging security problem: detecting obfuscated Windows command line invocations on endpoints. We start out with an introduction to this relatively new threat capability, and then discuss how such problems have traditionally bee...