Analytics BIOC Informational

Execution of an uncommon process with a local/domain user SID at an early startup stage

Execution of an uncommon process with a local/domain user SID at an early startup stage may be an indication of a persistent mechanism on boot that is being actively abused.

Module:
Platform Analytics
Data source:
XDR Agent
ATT&CK tactics: Persistence (TA0003)
ATT&CK techniques: Boot or Logon Autostart Execution (T1547)
Detector tags: Generic Persistence Analytics
Attacker's goals:

Attackers aim to get persistence to continue operating even after a reboot.

Investigative actions:

Check if the CGO (causality group owner) is familiar and if any configuration, parameters, or registry keys have been modified.

Test period:
N/A (single event)
Deduplication:
1 Day
2 variations:
  • Execution of an uncommon process with a local/domain user SID at an early startup stage with suspicious characteristics Low (parent: Informational)
  • Execution of an uncommon process with a local/domain user SID at an early startup stage with uncommon characteristics Low (parent: Informational)