Suspicious DLL Sideloading via Fake ApowerREC.exe Loading lastbld2Base.dll via Winos (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 the Winos 4.0 loader using a fake ApowerREC.exe to side load the malicious lastbld2Base.dll through its DllMain during initial execution. The pairing of this screen recorder binary with that DLL name is specific to the campaign. It launches the in memory implant.

Reporting behind it

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Suspicious DLL Sideloading via Fake ApowerREC.exe Loading lastbld2Base.dll via Winos (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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