Suspicious libEGL.dll Side-Loading from Public Libraries Directory (via image_load)

ATT&CK techniques

Execution → Defense Evasion

Recon
Resource Dev
Initial Access
Execution
- T1574.001DLL
Persistence
- T1574.001DLL
Priv Esc
- T1574.001DLL
Defense Evasion
- T1574.001DLL
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects a load of libEGL.dll from the C:\Users\Public\Libraries directory. The Ducktail toolset places a malicious libEGL.dll in Public\Libraries to be side-loaded by a signed host binary, so a load of this graphics-named DLL from a world-writable staging path indicates DLL side-loading rather than legitimate rendering support.

Reporting behind it

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Suspicious libEGL.dll Side-Loading from Public Libraries Directory (via image_load)

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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