Suspicious Remote Thread Injection into Task Manager

ATT&CK techniques

Priv Esc → Defense Evasion

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
- T1055Process Injection
Defense Evasion
- T1055Process Injection
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects a remote thread being created in taskmgr.exe, an injection target used by the defendnot tool to host its fake antivirus registration DLL as analyzed by Huntress. Attackers inject into a signed system process to persist Security Center manipulation and evade scrutiny. Remote thread creation into Task Manager is unusual and indicates process injection for defense evasion.

Reporting behind it

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Suspicious Remote Thread Injection into Task Manager

Pivot detection · T1055 · 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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