Group Policy Objects Enumerated via SYSVOL Access
This rule detects attempts to enumerate Group Policy Objects (GPOs) by accessing the SYSVOL share over SMB. It specifically looks for SMB traffic to port 445 containing both 'SYSVOL' and 'GroupPolicy' keywords, indicating an attempt to browse or access GPO-related files. A threshold of 5 such events within 30 seconds from the same source IP triggers the alert, suggesting a potential network scan or reconnaissance activity.
Suricata
