Before yesterday@Wietze - Blog
23 July 2021 at 00:00
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.
22 June 2020 at 00:00
DLL Hijacking is a popular technique for executing malicious payloads. This post lists nearly 300 executables vulnerable to relative path DLL Hijacking on Windows 10 (1909), and shows how with a few lines of VBScript some of the DLL hijacks can be executed with elevated privileges, bypassing UAC.
20 January 2020 at 00:00
PowerShell has built-in functionality to save sensitive plaintext data to an encrypted object called `SecureString`. Malicious actors have exploited this functionality as a means to obfuscate PowerShell commands. This blog post discusses `SecureString`, examples seen in the wild, and presents a tool [(https://wietze.github.io/powershell-securestring-decoder/)] that helps analyse `SecureString` obfuscated commands.
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