Sign in Get started

Back to results

MediumSigmaHQ frack113 +1

Potentially Suspicious NTFS Symlink Behavior Modification

Detects the modification of NTFS symbolic link behavior using fsutil, which could be used to enable remote to local or remote to remote symlinks for potential attacks.

Detection logic

Detection requirements

Platform: Containers ESXi IaaS Identity Provider Linux macOS Network Devices Office Suite SaaS Windows
The rule states no platform. This is derived from the 2 ATT&CK techniques it maps to.
Log source product: windows
Log source category: process_creation

Known benign triggers

Legitimate usage, investigate the parent process and context to determine if benign.

References

Links the source published beside this detection. Reference is the link the source wrote, unmodified. Class is decided by this catalogue from the host and path, not stated by the source. Cited by counts published detections citing the same resource, including this one, and the sources beneath it count the repositories this catalogue ingests, which is not the same as independent research.
Reference	Class	Cited by
learn.microsoft.com/fr-fr/windows-server/administration/windows-commands/fsutil-behavior	Product documentation	Only this detection cites it
thedfirreport.com/2025/06/30/hide-your-rdp-password-spray-leads-to-ransomhub-deployment/	Threat report	2from 2 sources
www.cybereason.com/blog/cybereason-vs.-blackcat-ransomware	Unclassified	Only this detection cites it

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