Suspicious MoustachedBouncer Command Execution from SMB EDGEIN Directory via Cmd (via process_creation)

ATT&CK techniques

Execution

Recon
Resource Dev
Initial Access
Execution
- T1059.001PowerShell
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects cmd.exe reading operator commands from the SMB share directory EDGEIN, the command channel used by the MoustachedBouncer SharpDisco backdoor to pipe attacker input into a shell. This behavior indicates remote command-and-control tasking through a network share.

Reporting behind it

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Suspicious MoustachedBouncer Command Execution from SMB EDGEIN Directory via Cmd (via process_creation)

Pivot detection · T1059.001 · 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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