MAL-2026-17730

Dashboard / Malicious Package / MAL-2026-17730

MAL-2026-17730

Summary: Malicious code in @galicia-toolkit-nestjs-20-lite/paas (npm)

Details: @galicia-toolkit-nestjs-20-lite/paas 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. Source: amazon-inspector (fb9736fcd5112c468c10509da5d624384a70802de5e20b218ad2cbebe0c7a443) The package declares scripts.preinstall `node index.js || true`, and index.js (also the main entry) require()s a platform-specific prebuilt native addon at prebuilds/<platform>-<arch>/metrics.node. The native binary reads a curated list of CI/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, AZURE_DEVOPS_EXT_PAT, and similar), together with hostname, user, OS/arch, and cwd (gethostname/getpwuid/uname/getcwd on Linux; GetUserNameA/GetComputerNameA/GetCurrentDirectoryA on Windows). The collected values are serialized as a JSON body (`{"src":"native","pkg":...,"e":{...}}`) and sent via a raw TCP socket as `POST /native HTTP/1.0` to the hardcoded host oob.s4yhii.com. The exported NestJS surface (forRoot/createLogger) is empty stub code with no real functionality, and a nested manifest at src/archetype/package.json contains the self-identifying marker `s4yhii-poc-2026-10-09` and contact `[email protected]`, matching the exfil host. The harmful code path fires automatically on `npm install` via preinstall and again on any require() of the package.

References: https://www.npmjs.com/package/@galicia-toolkit-nestjs-20-lite/paas/v/1.0.20, https://www.npmjs.com/package/@galicia-toolkit-nestjs-20-lite/paas/v/1.0.24, https://www.npmjs.com/package/@galicia-toolkit-nestjs-20-lite/paas/v/1.0.21, https://www.npmjs.com/package/@galicia-toolkit-nestjs-20-lite/paas/v/1.0.22, https://www.npmjs.com/package/@galicia-toolkit-nestjs-20-lite/paas