Deleting Windows Defender scheduled tasks

Analysis Detection

ATT&CK techniques

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

Detects the deletion of scheduled tasks related to Windows Defender.

Reporting behind it

thedfirreport.comhttps://thedfirreport.com/2022/05/09/seo-poisoning-a-gootloader-story/

Related detections9 linkedT1685 — drag to rearrange

Malicious Microsoft Defender Real-Time Monitoring Disabled via Set-MpPreference (via process_creation)

Suspicious Windows Defender Exclusion Added via PowerShell via Process Creation (via process_creation)

Malicious TCC AppleEvents Reset via Tccutil

Suspicious ESXi Management Agent Stop via vpxa init Script (via process_creation)

Malicious ESXi Firewall Disable via esxcli (via process_creation)

Malicious ESXi Syslog Redirection to tmp via esxcli

Suspicious Windows Defender Exclusion Enumeration via reg query (via process_creation)

Malicious Windows Defender Exclusion Added via PowerShell (via process_creation)

Malicious BYOVD EDR Kill via Renamed GMER Driver by Agonizing Serpens

Deleting Windows Defender scheduled tasks

Pivot detection · T1685 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

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