AppSec & DevSecOpsCritical SeverityEstimated SLA: 30 - 60 Minutes

Software Supply Chain Backdoor & Malicious Package Triage

Runbook for compromised third-party npm, PyPI, or container dependencies. SBOM audit, artifact quarantine, build pipeline freeze, and secret revocation.

Triage Progress0 of 6 Steps (0%)

1Phase 1: Build Pipeline Freeze & Artifact Quarantine

Halt CI/CD Deployment Pipelines & Freeze Releases

Disable automated deployment triggers (GitHub Actions, GitLab CI, ArgoCD) immediately to prevent infected build artifacts from promoting to production clusters.

gh workflow disable deploy.yml

Query Package Lockfiles for Compromised Hash Versions

Check package-lock.json, yarn.lock, requirements.txt, or Poetry locks across all microservices for the flagged malicious dependency package.

grep -rn 'malicious-pkg-name' **/package-lock.json

2Phase 2: CI/CD Secrets Invalidation & Re-Attestation

Rotate All CI/CD Pipeline Environment Secrets

Supply chain malware typically exfiltrates environment variables (AWS_SECRET_ACCESS_KEY, GITHUB_TOKEN, NPM_TOKEN, STRIPE_SECRET). Consider all build secrets burned.

Rebuild Base Images from Clean Upstream Hashes

Purge local and cloud container registry caches. Rebuild images with verified cryptographic digest pins (@sha256:...) rather than mutable tags (:latest).

docker build --no-cache -t app:clean .

3Phase 3: Cryptographic Attestation, SLSA Provenance & Guardrails

Implement Container Image Signing & Admission Control

Require cryptographic container signing (Cosign/Sigstore) and policy enforcement (Kyverno, OPA Gatekeeper) before any container can start in Kubernetes.

cosign verify --key cosign.pub ghcr.io/org/app:latest

Publish Coordinated Customer Security Advisory

Draft and distribute a transparent post-mortem security advisory outlining affected git commit ranges, sha256 checksums, and audit steps for downstream users.

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