Individual skill
hunting-for-beaconing-with-frequency-analysis
Identify command-and-control beaconing patterns in network traffic by applying statistical frequency analysis, jitter calculation, and coefficient of variation scoring to detect periodic callbacks from compromised endpoints.
skills/hunting-for-beaconing-with-frequency-analysis/SKILL.md
Source commit 54a798831d2266a3ca61ce68a7acb80b81160d57
What was checked
- Matches the observed repository HEAD
- Yes
- Scanner rules are current
- Yes
- Repository scan complete
- No
- Skill scan complete
- No
- Observed behavior
- Network or broad shell
- Last checked
- Nov 9, 2026
These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.
Install this skill
Choose an agent in your Stack or copy a command below. Commands fetch the pinned commit and copy only this skill directory. Existing destinations are refused. Copying a command does not install anything.
An install command is unavailable: current rules, complete repository and skill scans, an eligible behavior level and a permitted license are required.
Repository context
- Repository stars (not skill ratings)
- 35,926
- Repository last updated
- Aug 31, 2026
- License
- Apache-2.0
Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.
- ai-agents Repository topic
- claude-code Repository topic
- cybersecurity Repository topic
- incident-response Repository topic
- mitre-attack Repository topic
- penetration-testing Repository topic
- red-team Repository topic
- security Repository topic
- cloud-security Repository topic
- malware-analysis Repository topic
- threat-hunting Declared skill tag
- beaconing Declared skill tag
- c2-detection Declared skill tag
- frequency-analysis Declared skill tag
- network-traffic Declared skill tag
- rita Declared skill tag
- jitter-detection Declared skill tag
- mitre-t1071 Declared skill tag
- security Derived category
Files and excerpt
File metadata and permitted, redacted excerpts come from the recorded scan. Source links are pinned to that commit.
Browse files
LICENSEasset · 11,255 bytesSKILL.mdcore · 7,978 bytesSKILL.mdcore · 7,978 bytesassets/template.mddoc · 1,617 bytesreferences/api-reference.mddoc · 2,707 bytesreferences/standards.mddoc · 3,577 bytesreferences/workflows.mddoc · 4,808 bytesscripts/agent.pyruns · 5,164 bytesscripts/process.pyruns · 9,549 bytes
Read excerpt
# Hunting for Beaconing with Frequency Analysis
## When to Use
- When proactively searching for compromised endpoints calling back to C2 infrastructure
- After threat intelligence reports indicate active C2 frameworks targeting your sector
- When network logs show periodic outbound connections to unfamiliar destinations
- During purple team exercises validating C2 detection capabilities
- When investigating a potential breach and need to identify active C2 channels
## Prerequisites
- Network proxy/firewall logs with timestamps and destination data (minimum 24 hours)
- Zeek conn.log, dns.log, and ssl.log or equivalent NetFlow/IPFIX data