AsyncRAT Injector libPK.dll Written to Public Folder (via file_event)

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 the native injector libPK.dll being written into the C users Public folder, a staging behavior of the AsyncRAT chain that later calls its Execute export to inject the payload. Adversaries leverage the shared Public directory to drop the injector where any user context can reach it.

Reporting behind it

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AsyncRAT Injector libPK.dll Written to Public Folder (via file_event)

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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