SilentMare Updater Execution from User AppData Directory (via process_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 execution of the SilentMare updater binaries dropped into per-user AppData product folders by fake file-conversion and archive utilities delivered through malicious search ads. These updaters run on scheduled-task intervals to contact C2 and fetch in-memory .NET payloads, so their launch from a user profile directory is an early sign of the loader operating on the host.

Reporting behind it

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SilentMare Updater Execution from User AppData Directory (via process_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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