registry / Credential exfiltration / @servicetitan/startup
@servicetitan/startup
CLI to create multi-package Lerna projects with TypeScript and React
This report shows the evidence for @servicetitan/startup@38.1.4. 7 of 22 known versions are blocked or flagged. The newest version, 40.2.2, is allowed. See all versions.
AI Security Review
scanned 3mo ago · by lpm-firewall-aiThis is concrete install-time execution of an obfuscated staged payload with credential-harvesting and upload behavior, unrelated to the advertised CLI. It warrants blocking.
Static reason
One or more suspicious static signals were detected.; source matched previously finalized malicious package; routed for review; previous stored version diff introduced dangerous source
Trigger
Installing @servicetitan/startup@38.1.4
Impact
GitHub credentials/tokens and related local data can be collected and exfiltrated during installation.
Mechanism
staged Bun-loaded credential-harvesting payload
Attack narrative
The preinstall hook runs setup.mjs. It either invokes Bun or downloads a platform-specific Bun archive from GitHub, extracts it to a temporary directory, and uses it to execute math_init.js. That obfuscated payload imports filesystem, crypto, and process-control modules; its static control flow enumerates GitHub token fields and sends collected values through fetch-based upload routines while suppressing errors.
AI rationale
This is concrete install-time execution of an obfuscated staged payload with credential-harvesting and upload behavior, unrelated to the advertised CLI. It warrants blocking.
Evidence
package.jsonsetup.mjsmath_init.js/etc/os-release
Network endpoints1
github.com/oven-sh/bun/releases/download/bun-v1.3.13/
Decision evidence
public snapshotAI called this Malicious at 99.0% confidence as Malware with low false-positive risk.
Evidence for block
- package.json runs `node setup.mjs` as preinstall.
- setup.mjs downloads Bun, then executes `math_init.js` during install.
- math_init.js is a 727 KB heavily obfuscated executable payload.
- Payload imports fs, crypto and child_process, enumerates GitHub token fields, and uses fetch-based upload logic.
- Payload catches errors and exits, reducing visible install failures.
Evidence against
- The visible TypeScript/dist CLI source is consistent with a project startup tool.
- setup.mjs downloads Bun only as a loader for the bundled payload, not normal package functionality.
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsEvalFilesystemNetworkShell
HighEntropyStringsMinifiedUrlStrings
NoLicense
Source & flagged code
9 flagged · loading sourcepackage.jsonView file
•scripts.preinstall = node setup.mjs
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkgsetup.mjsView file
•matchType = previous_version_dangerous_delta
matchedPackage = @servicetitan/startup@38.1.0
matchedIdentity = npm:QHNlcnZpY2V0aXRhbi9zdGFydHVw:38.1.0
similarity = 0.675
summary = stored previous version shares package body but lacks this dangerous source file
Critical
Previous Version Dangerous Delta
This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.
setup.mjsView on unpkg1#!/usr/bin/env node
L2: import { execFileSync } from "child_process";
L3: import _0x488df8 from "fs";
High
Findings
1 Critical5 High4 Medium7 Low
CriticalPrevious Version Dangerous Deltasetup.mjs
HighInstall Time Lifecycle Scriptspackage.json
HighChild Processsetup.mjs
HighShellsetup.mjs
HighRuntime Package Installdist/cli/commands/clean.js
HighKnown Malware Source Similaritysetup.mjs
MediumDynamic Requirebin/webpack.js
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowScripts Present
LowEvalmath_init.js
LowWeak Cryptosrc/vite/plugins/shared-dependencies-plugin/shared-dependencies-plugin.ts
Low
Affected versions and remediation
This report applies to @servicetitan/startup@38.1.4.
The versions list below shows the verdict for each recorded version.
- Avoid installing @servicetitan/startup@38.1.4. Remove it from direct dependencies and check your lockfile for transitive copies.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
- If this version ran, investigate the affected machine and build environment. Rotate credentials it could access and rebuild from a trusted environment.
Evidence last updated: .
Source advisory published: .
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