oyi77/1ai-skills/analyzing-cyber-kill-chain

Analyzing Cyber Kill Chain

Overview

Cybersecurity skill for analyzing cyber kill chain. Follows industry best practices and security standards.

When to Use

Trigger phrases:

• "analyzing cyber kill chain"
• "Conducting post-incident analysis to determine how far an adversary progressed t"
• "Designing layered defensive controls with the goal of interrupting attacks at th"
• "Producing threat intelligence reports that communicate attack progression to non"

Use this skill when:

• Conducting post-incident analysis to determine how far an adversary progressed through an attack sequence
• Designing layered defensive controls with the goal of interrupting attacks at the earliest possible phase
• Producing threat intelligence reports that communicate attack progression to non-technical stakeholders

Do not use this skill as a standalone framework — combine with MITRE ATT&CK for technique-level granularity beyond what the 7-phase kill chain provides.

When NOT to Use

• When you lack proper authorization for testing
• For production systems without change management
• When the task requires legal or compliance expertise beyond technical scope

Prerequisites

• Complete incident timeline with forensic artifacts mapped to specific adversary actions
• MITRE ATT&CK Enterprise matrix for technique-level mapping within each kill chain phase
• Access to threat intelligence on the suspected adversary group's typical kill chain progression
• Post-incident report or IR timeline from responding team

Workflow

# Example: IOC detection
import re
IOC_PATTERNS = {
    "ip": r"\b(?:\d{1,3}\.){3}\d{1,3}\b",
    "domain": r"\b[a-z0-9-]+\.[a-z]{2,}\b",
    "hash_md5": r"\b[a-f0-9]{32}\b",
    "hash_sha256": r"\b[a-f0-9]{64}\b",
}
def extract_iocs(text: str) -> dict:
    return {k: re.findall(v, text) for k, v in IOC_PATTERNS.items()}

1. Scope the Analysis — Define what cyber kill chain artifacts or data sources to examine and the investigation timeline.
2. Preserve Evidence — Create forensic copies of relevant data. Maintain chain of custody documentation.
3. Extract Key Indicators — Parse and extract relevant cyber kill chain data points from collected artifacts.
4. Correlate Findings — Cross-reference extracted data with other sources (threat intel, logs, timelines).
5. Build Timeline — Construct a chronological sequence of events related to cyber kill chain.
6. Document Analysis — Write findings report with evidence, conclusions, and recommendations.

Tools

• Forensic Toolkit — Evidence collection and analysis
• Timeline Tools — Chronological event reconstruction
• Log Analysis Platform — Centralized log parsing and search

Process

1. Scope — Define research questions, identify data sources, set time boundaries
2. Gather — Collect data from primary sources, APIs, and public records
3. Synthesize — Analyze findings, identify patterns, produce actionable report

Verification

• [ ] All cyber kill chain procedures executed completely and documented
• [ ] Findings validated against multiple data sources
• [ ] False positives identified and filtered
• [ ] Results documented with evidence and timestamps
• [ ] Recommendations provided with risk-based prioritization

Anti-Rationalization Table