HackTool - Defendnot Default Scheduled Task Activity

Rule Info

Name
HackTool - Defendnot Default Scheduled Task Activity
Author
Swachchhanda Shrawan Poudel (Nextron Systems)
Description
Detects the default scheduled task activity of the hacktool Defendnot, which is used to disable Windows Defender Security. It abuses Microsoft's undocumented WSC API to register itself as a fake antivirus product, allowing it to disable Windows Defender. During installation, Defendnot creates a scheduled task named 'defendnot' with the argument '--from-autorun' for persistence.
Date
2026-10-18 00:00:00
Modified
None
Id
015ff932-4156-41ae-9d4c-1443995611fd
Tags
attack.execution attack.persistence attack.privilege-escalation attack.defense-impairment attack.t1053.005 attack.t1685
Type
Community Rule

Rule History

Author
Title
Date
Commit
Swachchhanda Shrawan Poudel
Merge PR #5469 from @swachchhanda000 - Hacktool - Defendnot Execution
2026-10-19