MediumElastic detection rules Austin Songer

Microsoft Windows Defender Tampering

Identifies when one or more features on Microsoft Defender are disabled. Adversaries may disable or tamper with Microsoft Defender features to evade detection and conceal malicious behavior.

Detection logic

Its licence does not clear it for publishing here

Sunturai publishes a detection's own text where the licence it arrived under has been reviewed and permits it, and Elastic License 2.0 has not. The query as its source wrote it, its canonical form and the hash that pins this revision are in the workspace record.

Detection requirements

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

Known benign triggers

Legitimate Windows Defender configuration changes

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
thedfirreport.com/2021/10/18/icedid-to-xinglocker-ransomware-in-24-hours/	Threat report	25from 3 sources
www.elastic.co/security-labs/invisible-miners-unveiling-ghostengine	Threat report	7
www.tenforums.com/tutorials/104025-turn-off-core-isolation-memory-integrity-windows-10-a.html	Unclassified	Only this detection cites it
www.tenforums.com/tutorials/105533-enable-disable-windows-defender-exploit-protection-settings.html	Unclassified	3from 2 sources
www.tenforums.com/tutorials/123792-turn-off-tamper-protection-microsoft-defender-antivirus.html	Unclassified	3from 2 sources
www.tenforums.com/tutorials/32236-enable-disable-microsoft-defender-pua-protection-windows-10-a.html	Unclassified	3from 2 sources
www.tenforums.com/tutorials/3569-turn-off-real-time-protection-microsoft-defender-antivirus.html	Unclassified	Only this detection cites it
www.tenforums.com/tutorials/51514-turn-off-microsoft-defender-periodic-scanning-windows-10-a.html	Unclassified	Only this detection cites it
www.tenforums.com/tutorials/99576-how-schedule-scan-microsoft-defender-antivirus-windows-10-a.html	Unclassified	Only this detection cites it

Detection rules

Microsoft Windows Defender Tampering

Detection logic

Detection requirements

Known benign triggers

MITRE ATT&CK mappings

References

From the source

Licence

Authorship

Detection rules