Suspicious Loading of Masqueraded EndpointDlp.dll Backdoor

ATT&CK techniques

Execution → Defense Evasion

Recon
Resource Dev
Initial Access
Execution
- T1574.001DLL
Persistence
- T1574.001DLL
Priv Esc
- T1574.001DLL
Defense Evasion
- T1036.005Match Legitimate Resource Name or Location
- T1574.001DLL
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects loading of a DLL named EndpointDlp.dll, which is Backdoor.Mistic masquerading as a Microsoft data loss prevention component. It is sideloaded through the legitimate MpExtMs.exe to gain covert execution.

Reporting behind it

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Suspicious Loading of Masqueraded EndpointDlp.dll Backdoor

Pivot detection · T1574.001 · 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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