{"answers":{"affected":"1 open source package ship an affected version, including microsoft-agents-auth-service.","exploited":"There is no known exploitation of MAL-2026-3322 in the wild and no public exploit code.","fix":"Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.","what":"MAL-2026-3322 is a malicious package in microsoft-agents-auth-service, published on 4 May 2026."},"fix_prompt":"MAL-2026-3322 is a malicious package: microsoft-agents-auth-service (npm). Every version was published to cause harm.\n\nTask:\n1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.\n2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.\n3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.\n4. If the package is not used anywhere, say so and change nothing.\n\nReference: https://insights.sbomify.com/MAL-2026-3322/ (Markdown: https://insights.sbomify.com/MAL-2026-3322/index.md)","id":"MAL-2026-3322","markdown":"https://insights.sbomify.com/MAL-2026-3322/index.md","name":"MAL-2026-3322","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"Malicious npm package published by the `microsop` threat actor as part of a dependency-confusion campaign that impersonates internal tooling at Microsoft, Google Cloud, and PayPal using inflated semver values (e.g. 99.9.x, 100.1.x) to win npm resolution against private internal packages. All packages in the campaign falsely advertise themselves as \"Security Research PoC\" / MSRC research and execute on `preinstall` via `node index.js`, exfiltrating to disposable `webhook.site` endpoints.\n\nThis package targets Microsoft-internal infrastructure. On install it shells out to harvest `/etc/passwd`, probe `/etc/shadow`, locate SSH private keys (`id_rsa`, `*.pem`, `authorized_keys`), enumerate `.netrc` / `.dockercfg`, query the AWS IMDS endpoint `http://169.254.169.254/latest/user-data`, and grep environment variables matching `USER|PASS|TOKEN|CREDENTIAL`. The collected output is POSTed to `https://webhook.site/11b6a711-bdc7-4444-9a0e-ffcb23151e82` tagged `status: ULTRA_USER_CREDENTIAL_SCOUT`, `target: global-microsoft-infra`.\n\nThe package microsoft-agents-auth-service was found to contain malicious code.","ecosystems":["npm"],"exploits":{"exploitdb":null,"first_seen":null,"github_poc":null,"max_poc_stars":null,"metasploit":null,"nuclei":null,"refs":[],"tier":null},"has_fix":false,"headline":"Malicious code in microsoft-agents-auth-service (npm)","id":"MAL-2026-3322","indexable":true,"kev":null,"kind":"malicious","links":{"ecosystem":"npm","product":null,"products":[],"type":null,"year":"2026"},"n_packages":1,"n_references":null,"packages":[{"ecosystem":"npm","fixed":[],"introduced":["0"],"last_affected":[],"package":"microsoft-agents-auth-service","purl":"pkg:npm/microsoft-agents-auth-service","source":"MAL-2026-3322"}],"products":null,"published":"2026-05-04","related":[],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"OpenSSF Malicious Packages","prefix":"MAL"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":null,"updated":null,"vendors":null},"summary":null,"url":"https://insights.sbomify.com/MAL-2026-3322/"}