feat: 10 supply-chain exfiltration rules (litellm attack)#38
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New category: supply-chain-exfil. Derived from the litellm supply chain attack (March 24, 2026) where compromised PyPI packages harvested credentials via .pth files, encrypted with RSA, and exfiltrated via HTTPS. Rules detect: - Credential file reads in Python (SSH keys, cloud configs, wallets) - File content encoding for exfiltration (base64, AES, RSA) - Bulk os.environ collection with network send - .pth files with executable content - Cloud metadata endpoint access in Python - Kubernetes secrets API access and privileged pod creation - Systemd/cron persistence installation - Hardcoded cryptographic key material - Tar/zip archive creation combined with HTTP POST - .pth file presence with non-path content 187 total rules (was 177). All 560 tests pass, 0 lint issues.
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Summary
10 new detection rules for supply-chain exfiltration attacks, derived from the litellm supply chain compromise (March 24, 2026).
New category:
supply-chain-exfil. New file:internal/rules/builtin/supply-chain-exfil.yaml.The litellm attack
litellm v1.82.7/1.82.8 were published to PyPI with malicious
.pthfiles that:Why existing rules didn't catch it
Existing supply-chain rules focus on
setup.pyexecution, download-and-execute, and reverse shells. The litellm attack uses clean Python to read local files and POST via HTTPS - no shell commands, no downloads.New rules
187 total rules (was 177). 560 tests, 0 lint issues.
Test plan
TestIntegrationBenignSecurityToolingpasses (no FPs on security tools)make build && make test && make vet && make lintpasses