MediumSigmaHQ frack113

Suspicious Windows Defender Folder Exclusion Added Via Reg.EXE

Detects the usage of "reg.exe" to add Defender folder exclusions. Qbot has been seen using this technique to add exclusions for folders within AppData and ProgramData.

Detection logic

Detection requirements

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

Known benign triggers

Legitimate use

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
redcanary.com/threat-detection-report/threats/qbot/	Security research	2
thedfirreport.com/2022/02/07/qbot-likes-to-move-it-move-it/	Threat report	6from 2 sources

Detection rules

Suspicious Windows Defender Folder Exclusion Added Via Reg.EXE

Detection logic

Detection requirements

Known benign triggers

MITRE ATT&CK mappings

References

From the source

Licence

Authorship

Detection rules