Suspicious Lunar Backdoor State File Creation via File System

ATT&CK techniques

Persistence → C2

Recon
Resource Dev
Initial Access
Execution
Persistence
- T1547Boot or Logon Autostart Execution
Priv Esc
- T1547Boot or Logon Autostart Execution
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
- T1071.001Web Protocols
Exfiltration
Impact

What it detects

This rule detects the creation of Lunar backdoor state and configuration files with the distinctive names perfconfm.dat, content.tpl, and outlk.share. These artifacts are dropped by the LunarMail and LunarWeb implants used against European diplomatic missions. Their presence indicates active espionage tooling and stager persistence on the host.

Reporting behind it

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Suspicious Lunar Backdoor State File Creation via File System

Pivot detection · T1071.001 · 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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