Identify ransomware network indicators including C2 beaconing patterns, TOR exit node connections, data exfiltration flows, and encryption key exchange via Zeek conn.log and NetFlow analysis

mukul975/Anthropic-Cybersecurity-Skills|Updated May 25, 2026

Works with

Claude CodeCursorClineWindsurfCodex

Installation Guide

Select your AI agent

How to use analyzing-ransomware-network-indicators on Cursor

AI-first code editor with Composer

Prerequisites

Before installing skills in Cursor, ensure your development environment meets these requirements:

›Cursor installed and configured on your machine
›Node.js 16+ with npm — verify with node --version
›Active project directory where you want to add analyzing-ransomware-network-indicators

Run the install command

Execute the skills CLI command in your project's root directory to begin installation:

$npx skills install mukul975/Anthropic-Cybersecurity-Skills/analyzing-ransomware-network-indicators

Fetches analyzing-ransomware-network-indicators from mukul975/Anthropic-Cybersecurity-Skills and configures it for Cursor.

Select Cursor when prompted

The CLI shows a list of agents. Use arrow keys and space to select Cursor:

◆ Which agents do you want to install to?

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│ ── Universal (.agents/skills) ────────────────

│ · Cline · Codex · Goose · Windsurf

│ ●Cursor(selected)

│ · Cursor · Aider · Continue

Verify installation

Confirm successful installation by checking the skill directory location:

.cursor/skills/analyzing-ransomware-network-indicators

Restart Cursor to activate analyzing-ransomware-network-indicators. Access via /analyzing-ransomware-network-indicators in your agent's command palette.

⚠

Security Notice

We perform automated surface-level scans (Gen AI Scanner, Socket, Snyk) during installation. These checks detect common vulnerabilities but do not guarantee complete security. Always review skill source code and verify the publisher's reputation before production use.

Skills execute code in your environment. Always review source, verify the publisher, and test in isolation before production.

›View source on GitHub ›Skills CLI docs ›About Cursor ›What are agent skills?

Documentation

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Use Cases

Task Automation & Efficiency

Automate repetitive workflows and reduce manual effort

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Generate reports, summarize documents, draft communications

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Knowledge Enhancement

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Explain concepts, provide examples, suggest learning resources

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Quality Improvement

Enhance output quality through reviews, suggestions, and refinements

Example

Review drafts, suggest improvements, catch errors

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Improve work quality by 30-40% with less effort

Overview

Before and during ransomware execution, adversaries establish C2 channels, exfiltrate data, and download encryption keys. This skill analyzes Zeek conn.log and NetFlow data to detect beaconing patterns (regular-interval callbacks), connections to known TOR exit nodes, large outbound data transfers, and suspicious DNS activity associated with ransomware families.

When to Use

When investigating security incidents that require analyzing ransomware network indicators

When building detection rules or threat hunting queries for this domain

When SOC analysts need structured procedures for this analysis type

When validating security monitoring coverage for related attack techniques

Steps

Parse Connection Logs — Ingest Zeek conn.log (TSV) or NetFlow records into structured format

Detect Beaconing Patterns — Calculate connection interval statistics (mean, stddev, coefficient of variation) to identify periodic callbacks

Check TOR Exit Node Connections — Cross-reference destination IPs against current TOR exit node list

Identify Data Exfiltration — Flag connections with unusually high outbound byte ratios to external IPs

Analyze DNS Patterns — Detect DGA-like domain queries and high-entropy subdomains

Score and Correlate — Apply composite risk scoring across all indicator types

Generate Report — Produce structured report with timeline and MITRE ATT&CK mapping

name	analyzing-ransomware-network-indicators
description	Identify ransomware network indicators including C2 beaconing patterns, TOR exit node connections, data exfiltration flows, and encryption key exchange via Zeek conn.log and NetFlow analysis
domain	cybersecurity
subdomain	threat-hunting
tags	- ransomware - c2-beaconing - zeek - netflow - tor - exfiltration - network-forensics
version	'1.0'
author	mahipal
license	Apache-2.0
d3fend_techniques	- File Metadata Consistency Validation - Certificate Analysis - Application Protocol Command Analysis - Content Format Conversion - File Content Analysis
nist_csf	- DE.CM-01 - DE.AE-02 - DE.AE-07 - ID.RA-05

analyzing-ransomware-network-indicators

Installation Guide

How to use analyzing-ransomware-network-indicators on Cursor

Prerequisites

Run the install command

Select Cursor when prompted

Verify installation

Security Notice

Documentation

List & Monetize Your Skill

Use Cases

Task Automation & Efficiency

Knowledge Enhancement

Quality Improvement

Install Skill

Analyzing Ransomware Network Indicators

Overview

When to Use

Prerequisites

Steps

Expected Output

Implementation Guide

Best Practices

When to Use This

Learning Path

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