Sauron Loader rnpkeys.exe registration-then-polling C2 beacon pattern
Detects anomalous network traffic patterns from the legitimate 'rnpkeys.exe' process when side-loaded from the 'ProgramData\keyroll' directory. The rule specifically looks for a sequence of connections matching initial C2 registration (TLV 0x01) followed by consistent, periodic beaconing (TLV 0x02) at an interval indicating automated task polling, rather than single-connection legitimate activity.
Splunk (SPL)
