@immobiliarelabs/backstage-plugin-gitlab-backendnpm
Malicious code in @immobiliarelabs/backstage-plugin-gitlab-backend (npm) Remove it immediately and rotate any exposed credentials.
What this malware does
The package ships a binding.gyp at the package root whose contents use GYP command-expansion syntax (<!(...)) inside its targets/sources fields. npm implicitly runs node-gyp rebuild whenever a binding.gyp is present — even with no declared install/postinstall script — and GYP evaluates <!(...) as a shell command during the configure step. The result is that npm install @immobiliarelabs/[email protected] causes an embedded shell command to execute on the installer machine without any explicit lifecycle hook. The package presents itself as a Backstage backend plugin (pure TypeScript/JavaScript), which has no legitimate need to ship a native-addon build descriptor; the binding.gyp's purpose is to run the embedded command at install time. the analysis of this artifact tripped the provider's malware-output safety filter, which corroborates the malicious shape of the contents. Treat as install-time remote code execution: the harmful path is automatic on a default npm install.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Malicious packageFind it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for @immobiliarelabs/backstage-plugin-gitlab-backend (5 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging @immobiliarelabs/backstage-plugin-gitlab-backend across your stack and pipelines.
If you installed it — respond
Remove @immobiliarelabs/backstage-plugin-gitlab-backend from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.
Did it already run?
If @immobiliarelabs/backstage-plugin-gitlab-backend 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 @immobiliarelabs/backstage-plugin-gitlab-backend 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
Detect & block this
O3 blocks @immobiliarelabs/backstage-plugin-gitlab-backend-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.