This article discusses the persistent use of PowerShell in cyber attacks, highlighting its versatility and the challenges it presents for detection. It emphasizes detection strategies for encoded commands and layered defenses. #PowerShell #EncodedCommand
Keypoints
- PowerShell is the fourth most-used technique in cyber threats, surpassing WMI and Registry modifications.
- Attackers exploit encoded PowerShell commands to hide malicious payloads and bypass logs.
- Regex patterns are essential tools for detecting encoded commands, but obfuscation techniques can complicate detection.
- Detecting obfuscated and double-encoded PowerShell payloads requires layered, continuous defense strategies and custom decoding.
- Proper logging, including ScriptBlock Logging and process details, enhances detection capabilities against malicious PowerShell activity.