Suspicious Process Execution From Recycle Bin Directory

ATT&CK techniques

Initial Access → Lateral Movement

Recon
Resource Dev
Initial Access
- T1091Replication Through Removable Media
Execution
- T1574.001DLL
Persistence
- T1574.001DLL
Priv Esc
- T1574.001DLL
Defense Evasion
- T1574.001DLL
Cred Access
Discovery
Lateral Movement
- T1091Replication Through Removable Media
Collection
C2
Exfiltration
Impact

What it detects

This rule detects execution of an executable located inside a Recycle Bin directory such as RECYCLER.BIN or $Recycle.Bin. In a case analyzed by Kaspersky a CEFHelper.exe payload was launched from RECYCLER.BIN on a USB drive to enable DLL sideloading. Legitimate software is not executed from the Recycle Bin so this location strongly indicates staging of a hidden payload for defense evasion.

Reporting behind it

Related detections9 linkedT1574.001 — drag to rearrange

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Suspicious Impact of 'SMOKEDHAM Backdoor' with MSDTC Service Privilege Escalation via Command Line (via process_creation)

Malicious DLL ServerLevelPluginDll Command Installation (via process_creation)

Suspicious Process Execution From Recycle Bin Directory

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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