@databus-service-ui/ui-eventnpm
Malicious code in @databus-service-ui/ui-event (npm) Remove it immediately and rotate any exposed credentials.
What this malware does
scripts/postinstall.js performs two install-time attacks against any machine that runs npm install. (1) Credential exfiltration: it iterates process.env collecting variables whose names match npm_token, github_token, aws_access_key_id, aws_secret_access_key, artifactory_token, nexus_token, node_auth_token, npm_config__auth, etc.; reads ~/.npmrc, /etc/npmrc, and the CWD.npmrc; bundles these with hostname/user/cwd/CI flags; and POSTs the bundle to https://oob.moika.tech/report. (2) Remote code execution: it fetches an OS-specific script from https://oob.moika.tech/payload/{linux,mac,win} (unpinned, no integrity check), writes it to os.tmpdir() as._databus-service-ui_init.sh/.bat, chmods 0755, and spawns it via /bin/sh or cmd.exe detached. Package is scoped @databus-service-ui/* with version 9.9.10 and README pointing at an internal-only registry (npm.databus-service-ui.io) — a textbook dependency-confusion shape designed to win resolution over an internal package of the same name. The script's own comment self-labels it as a 'Dependency confusion payload — AUTHORIZED TESTING ONLY' and reports poc: 'dependency-confusion-npm', but from any installer's perspective the harm — full CI credential compromise plus arbitrary code execution from oob.moika.tech — is identical to a real attack.
Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
The OpenSSF Package Analysis project identified '@databus-service-ui/ui-event' @ 9.9.10 (npm) as malicious.
It is considered malicious because:
- The package executes one or more commands associated with malicious behavior.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for @databus-service-ui/ui-event (version 9.9.10). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging @databus-service-ui/ui-event across your stack and pipelines.
If you installed it — respond
@databus-service-ui/ui-event is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.
Did it already run?
If @databus-service-ui/ui-event was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.
How O3 protects you
O3 blocks @databus-service-ui/ui-event before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.
Frequently asked questions
Campaign
References
Credits
- Amazon Inspector · finder
- OpenSSF: Package Analysis · finder
Detect & block this
O3 blocks @databus-service-ui/ui-event-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.