Windows Command-Line Obfuscation

Many Windows applications have multiple ways in which the same command line can be expressed, usually for compatibility or ease-of-use reasons. As a result, command-line arguments are implemented inconsistently making detecting specific commands harder due to the number of variations. This post shows how more than 40 often-used, built-in Windows applications are vulnerable to forms of command-line obfuscation, and presents a tool for analysing other executables.

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