Udev Rule Modified for Linux Persistence
This rule detects network traffic containing the string "/etc/udev/rules.d/" over TCP port 22 (SSH). This string is indicative of an attempt to modify udev rules, which can be used for Linux persistence by executing malicious scripts or commands when specific hardware events occur. The detection is focused on traffic flowing from the home network to a server on the home network, suggesting an internal system attempting to modify udev rules on another internal system via SSH.
Suricata
