@galicia-toolkit-nestjs/commonsnpm
Advisory published Updated
@galicia-toolkit-nestjs/commons is a confirmed malicious npm package (MAL-2026-17722) that steals credentials and exfiltrates sensitive data (malicious versions 3.0.1, 999.0.1, 999.0.6…). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in @galicia-toolkit-nestjs/commons (npm)
What this malware does
@galicia-toolkit-nestjs/commons is a dependency confusion package published to npm on 2026-10-09 by the account s4yhii__, targeting the internal @galicia-toolkit-* / @brick-v2 package namespaces with inflated versions (e.g. 999.0.x). Early versions resolve <hostname>.<tag>.dc.oob.s4yhii.com via DNS to beacon the victim's hostname. Later versions run node index.js from a preinstall hook, which loads a bundled native addon (prebuilds/<platform>-<arch>/metrics.node, Linux and Windows builds). The addon forks a detached process that collects hostname, username, OS/arch, cwd and the full values of CI/cloud secrets from environment variables (NPM_TOKEN, NODE_AUTH_TOKEN, GITHUB_TOKEN, ACTIONS_RUNTIME_TOKEN, ACTIONS_ID_TOKEN_REQUEST_TOKEN, AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, AWS_SESSION_TOKEN, SYSTEM_ACCESSTOKEN, AZURE_DEVOPS_EXT_PAT and others) and sends them as JSON via HTTP POST /native to oob.s4yhii.com:9999.
The package ships a tiny index.js that require()s a bundled ELF at prebuilds/linux-x64/metrics.node inside a swallow-all try/catch on module load. No C/C++ source, binding.gyp, or node-gyp/prebuild tooling is present, so the native binary cannot be rebuilt from source and its behavior is opaque to consumers. Strings extracted from the binary show it reads CI and cloud credential environment variables (AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, AWS_SESSION_TOKEN, GITHUB_TOKEN, NPM_TOKEN, NODE_AUTH_TOKEN, SYSTEM_ACCESSTOKEN, ACTIONS_RUNTIME_TOKEN, ACTIONS_ID_TOKEN_REQUEST_TOKEN) along with hostname, username and cwd, then opens a raw socket to the hardcoded host oob.s4yhii.com and issues POST /native HTTP/1.0 with a JSON body of the collected values. The addon daemonizes via fork+setsid to persist beyond the parent process. The destination host is unrelated to NestJS or any plausible publisher of a 'commons' utility. The package name mimics an internal-looking org scope and is published at version 999.0.6 with no repository and an UNLICENSED field, matching the dependency-confusion lure shape intended to win resolution against a private internal package of a similarly-named scope.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for @galicia-toolkit-nestjs/commons (5 malicious versions).
If you installed it — respond
@galicia-toolkit-nestjs/commons 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 @galicia-toolkit-nestjs/commons was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.
Frequently asked questions
Campaign
References
Credits
- Amazon Inspector · finder
- SafeDep · finder
Detect & block this
O3 blocks @galicia-toolkit-nestjs/commons-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.