Advanced Multi-Stage Linux Enumeration & Post-Exploitation Detector
This query identifies potential post-exploitation behavior on Linux systems by monitoring for clusters of discovery and enumeration commands. Instead of alerting on single, potentially benign commands, it utilizes a behavioral scoring engine that categorizes activities such as credential hunting, privilege escalation, and network scanning. By implementing extensive allowlists for common administrative tools (e.g., Ansible, Zabbix, Monitoring Agents) and requiring a minimum threshold of unique activity categories, the query effectively filters out "noise." It calculates a dynamic Risk Score and assigns a Severity level based on the criticality of the commands and the speed of execution (Burst Detection), making it a highly reliable tool for SOC analysts to detect active hands-on-keyboard attacks.
Microsoft Sentinel (KQL)
