Zeek

The detecting-network-anomalies-with-zeek skill helps deploy Zeek for passive network monitoring, review structured logs, and build custom detections for beaconing, DNS tunneling, and unusual protocol activity. It is suited for threat hunting, incident response, SIEM-ready network metadata, and Security Audit workflows—not inline prevention.

detecting-modbus-protocol-anomalies helps detect suspicious Modbus/TCP and Modbus RTU behavior in OT and ICS networks, including invalid function codes, out-of-range register access, abnormal polling timing, unauthorized writes, and malformed frames. Useful for a Security Audit and evidence-based triage.

detecting-beaconing-patterns-with-zeek helps analyze Zeek conn.log intervals to detect C2-style beaconing. It uses ZAT, groups flows by source, destination, and port, and scores low-jitter patterns with statistical checks. Ideal for SOC, threat hunting, incident response, and detecting-beaconing-patterns-with-zeek for Security Audit workflows.

analyzing-ransomware-network-indicators helps analyze Zeek conn.log and NetFlow to spot C2 beaconing, TOR exits, exfiltration, and suspicious DNS for Security Audit and incident response.

hunting-advanced-persistent-threats is a threat-hunting skill for detecting APT-style activity across endpoint, network, and memory telemetry. It helps analysts build hypothesis-driven hunts, map findings to MITRE ATT&CK, and turn threat intel into practical queries and investigation steps instead of ad hoc searches.

detecting-exfiltration-over-dns-with-zeek helps detect DNS data exfiltration from Zeek dns.log by flagging high-entropy subdomains, long labels, and unusual query volume. Use this detecting-exfiltration-over-dns-with-zeek skill for threat hunting, triage, and repeatable analysis with Zeek field references and scripts.

analyzing-network-traffic-for-incidents helps incident responders analyze PCAPs, flow logs, and packet captures to confirm C2, lateral movement, exfiltration, and exploitation attempts. Built for analyzing-network-traffic-for-incidents for Incident Response with Wireshark, Zeek, and NetFlow-style investigation.

detecting-lateral-movement-in-network helps detect post-compromise lateral movement in enterprise networks using Windows event logs, Zeek telemetry, SMB, RDP, and SIEM correlation. It is useful for threat hunting, incident response, and detecting-lateral-movement-in-network for Security Audit reviews with practical detection workflows.

detecting-dnp3-protocol-anomalies helps analyze DNP3 traffic in SCADA environments to flag unauthorized control commands, protocol violations, restart attempts, and deviations from baseline behavior. Use this detecting-dnp3-protocol-anomalies skill for Security Audit, IDS tuning, and reviewing Zeek logs or packet captures.

detecting-command-and-control-over-dns is a cybersecurity skill for spotting C2 over DNS, including tunneling, beaconing, DGA domains, and TXT/CNAME abuse. It supports SOC analysts, threat hunters, and security audits with entropy checks, passive DNS correlation, and Zeek or Suricata-style detection workflows.