
Summary
This detection rule aims to identify potential obfuscation techniques in PowerShell scripts, specifically those that involve character joining for alias creation. The obfuscation strategies detected often mask the actual intention of the script, making it harder for traditional security systems to analyze and interpret the commands being executed. The rule looks for specific constructs within ScriptBlockText, particularly focusing on the use of 'Alias' creation combined with the 'join' operation, highlighting the obfuscation methods employed by adversaries to evade detection mechanisms. To ensure effective detection, script block logging must be enabled within the PowerShell environment. By monitoring these patterns, security teams can gain visibility into potential malicious activities targeting their systems.
Categories
- Windows
- Endpoint
Data Sources
- Script
- Process
Created: 2023-01-09