Suspicious PlushDaemon EdgeStepper Configuration File Creation

ATT&CK techniques

C2

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
- T1105Ingress Tool Transfer
Exfiltration
Impact

What it detects

This rule detects creation of the EdgeStepper configuration file bioset.conf under etc, the encrypted settings store dropped by PlushDaemon on compromised routers. The filename masquerades as a legitimate system component while holding the AES-CBC keyed C2 configuration, so its appearance indicates implant deployment.

Reporting behind it

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Suspicious PlushDaemon EdgeStepper Configuration File Creation

Pivot detection · T1105 · 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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