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Detect malicious packages and supply chain attacks in Python (PyPI) and Node.js (npm). Scans requirements.txt, package.json, package-lock.json for malware, typosquatting, data exfiltration, and compromised maintainers.
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| name | guarddog-security-scan |
| description | Detect malicious packages and supply chain attacks in Python (PyPI) and Node.js (npm). Scans requirements.txt, package.json, package-lock.json for malware, typosquatting, data exfiltration, and compromised maintainers. |
| applyTo | **/requirements*.txt,**/package.json,**/package-lock.json |
GuardDog by DataDog detects malicious PyPI and npm packages using Semgrep source code rules and metadata heuristics. It identifies malware, supply chain attacks, typosquatting, and compromised packages.
# Verify Python dependencies (recommended first step)
guarddog pypi verify requirements.txt
# Verify npm dependencies
guarddog npm verify package-lock.json
# Scan local Python project source for malicious patterns
guarddog pypi scan /path/to/project/
# Scan local Node.js project source
guarddog npm scan /path/to/project/
# Check a specific package before installing
guarddog pypi scan <package-name>
guarddog npm scan <package-name>
# JSON output for automation
guarddog pypi scan /path --output-format=json
| Rule | Ecosystem | Threat | MITRE ATT&CK |
|---|---|---|---|
exec-base64 | Both | Obfuscated code execution | T1027, T1059 |
exfiltrate-sensitive-data | Both | Steals credentials/keys | T1005, T1041 |
code-execution | Python | OS commands in setup.py | T1059 |
download-executable | Python | Downloads and runs malware | T1105 |
typosquatting | Both | Impersonates popular packages | — |
npm-install-script | npm | Malicious install hooks | T1059 |
npm-serialize-environment | npm | Exfiltrates env vars | T1082, T1041 |
obfuscation | Both | Deliberately obscured code | T1027 |
repository_integrity_mismatch | Python | Package differs from source | — |
# Scan with specific rules only
guarddog pypi scan /path --rules exec-base64 --rules code-execution
# Exclude specific rules
guarddog pypi scan /path --exclude-rules repository_integrity_mismatch
Found 2 potentially malicious indicators:
- exec-base64: Identified base64-encoded code execution in setup.py
- exfiltrate-sensitive-data: Package reads SSH keys and sends to external URL
Each rule match indicates a potential malicious pattern that needs investigation.
bandit or graudit)