Sunturai
Back to results
MediumSigmaHQScoubi (@ScoubiMtl)

Potential Hidden Directory Creation Via NTFS INDEX_ALLOCATION Stream

Detects the creation of hidden file/folder with the "::$index_allocation" stream. Which can be used as a technique to prevent access to folder and files from tooling such as "explorer.exe" and "powershell.exe"

Detection logic

Detection requirements

Platform
Windows

The rule states no platform. This is derived from the ATT&CK technique it maps to.

Log source product
windows
Log source category
file_event

Known benign triggers

  • Unlikely

Detections can measure how the public catalogue is used — which detections people look for, and which pages bring them here. It sets a cookie that recognises this browser for 180 days. It is never linked to an account and never follows you to other sites. Privacy notice