Linux Hidden Script Execution in /tmp/ or /var/tmp/
This rule detects the execution of hidden shell scripts (files starting with a dot) within the /tmp/ or /var/tmp/ directories on Linux systems, specifically when initiated using `nohup`. This behavior is often associated with malware or post-exploitation activities to maintain persistence or execute malicious payloads discreetly. The rule looks for process execution events where the command line includes `nohup` and references a hidden `.sh` file in a temporary directory.
CQL
