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mukul975
27c6414ca5
Complete skill folder anatomy across all cybersecurity skills: - scripts/agent.py: 80-150 line Python agents using real libraries (impacket, boto3, azure-mgmt-*, kubernetes, pefile, yara, scapy, shodan, stix2, etc.) - references/api-reference.md: real API documentation with method signatures - LICENSE: MIT license for all skill folders
72 lines
1.9 KiB
Markdown
72 lines
1.9 KiB
Markdown
# API Reference: Hunting for Supply Chain Compromise
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## NPM Lock File Analysis
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```python
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import json
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data = json.load(open("package-lock.json"))
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packages = data.get("packages", {})
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for name, info in packages.items():
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resolved = info.get("resolved", "")
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has_script = info.get("hasInstallScript", False)
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```
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## pip-audit
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```bash
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pip-audit --format=json --output=audit.json
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pip-audit --require=requirements.txt --desc
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```
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```python
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# Programmatic usage
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from pip_audit._cli import audit
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# Or parse JSON output
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import subprocess, json
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result = subprocess.run(["pip-audit", "--format=json"], capture_output=True, text=True)
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vulns = json.loads(result.stdout)
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```
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## Hash Verification
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```python
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import hashlib
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sha = hashlib.sha256()
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with open("binary.exe", "rb") as f:
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for chunk in iter(lambda: f.read(8192), b""):
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sha.update(chunk)
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print(sha.hexdigest())
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```
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## Dependency Confusion Checks
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| Registry | Check Command | Risk |
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|----------|---------------|------|
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| npm | `npm view <pkg> name` | Package exists publicly |
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| PyPI | `pip index versions <pkg>` | Package exists publicly |
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| Maven | `mvn dependency:resolve` | Artifact on Maven Central |
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## Splunk SPL - Build Anomaly Detection
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```spl
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index=cicd sourcetype=build_logs
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| where match(_raw, "(?i)(curl.*\|.*sh|wget.*chmod|--registry\s+http)")
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| table _time build_id job_name _raw
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```
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## Supply Chain Indicators
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| Indicator | Severity | Category |
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|-----------|----------|----------|
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| Known compromised package | CRITICAL | Package takeover |
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| Non-standard registry URL | HIGH | Dependency confusion |
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| Install scripts in deps | MEDIUM | Post-install hooks |
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| Git URL dependencies | MEDIUM | Unpinned source |
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| Pipe to shell in CI | CRITICAL | Remote code execution |
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### References
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- MITRE T1195: https://attack.mitre.org/techniques/T1195/
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- pip-audit: https://github.com/pypa/pip-audit
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- npm audit: https://docs.npmjs.com/cli/v9/commands/npm-audit
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