registry / Credential exfiltration / @ornikar/babel-preset-kitt-universal
@ornikar/babel-preset-kitt-universal
This report shows the evidence for @ornikar/babel-preset-kitt-universal@8.0.7, the only known version.
AI Security Review
scanned 3mo ago · by lpm-firewall-aiThe documented preset is benign, but its install-time loader and opaque payload establish concrete malicious behavior. The Bun download is a bootstrap mechanism for executing the bundled credential-targeting payload.
Static reason
One or more suspicious static signals were detected.; source matched previously finalized malicious package; routed for review; source fingerprint signature matched known malicious package; routed for review
Trigger
npm installation (preinstall)
Impact
GitHub credential theft and arbitrary remote code execution in the installer environment.
Mechanism
install-time staged payload execution with credential targeting and remote eval
Attack narrative
The preinstall hook launches setup.mjs. It runs the bundled obfuscated math_init.js using an existing Bun executable or downloads Bun from GitHub and executes it. The payload contains GitHub token handling, network request logic, and evaluates server-returned content, creating an install-time credential-exfiltration and remote-code-execution chain unrelated to the documented Babel preset.
AI rationale
The documented preset is benign, but its install-time loader and opaque payload establish concrete malicious behavior. The Bun download is a bootstrap mechanism for executing the bundled credential-targeting payload.
Evidence
package.jsonsetup.mjsmath_init.jslib/index.jsREADME.md
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` in preinstall.
- setup.mjs downloads Bun from GitHub and executes math_init.js during install.
- math_init.js is heavily obfuscated and includes remote-response `eval`.
- math_init.js contains GitHub-token handling paths (`ghtoken`, `ghs_old`, `ghs_jwt`).
- Payload source makes network requests and suppresses errors, consistent with credential theft.
Evidence against
- lib/index.js is a small, normal Babel preset.
- README.md describes only a Babel preset and does not justify the install payload.
Behavioral surface
ChildProcessEvalFilesystemNetworkShell
HighEntropyStringsMinifiedUrlStrings
Source & flagged code
4 flagged · loading sourcepackage.jsonView file
•scripts.preinstall = node setup.mjs
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkgmath_init.jsView file
1// @bun @bun-cjs
L2: var MmgoCP,etDiOOB,JqTtnbZ,bc3Kak,ZQmUTyQ,TTUgga,MDX6yrw,h8wMJNB,CabwE2L,x5ErqV;function WV8StW(MmgoCP,etDiOOB,JqTtnbZ){for(JqTtnbZ=0x0;JqTtnbZ<etDiOOB;JqTtnbZ++)MmgoCP.push(MmgoCP...
Low
Eval
Package source references a known benign dynamic code generation pattern.
math_init.jsView on unpkg · L1setup.mjsView file
•matchType = normalized_sha256
matchedPackage = rwc-client@0.29.14
matchedPath = setup.mjs
matchedIdentity = npm:cndjLWNsaWVudA:0.29.14
similarity = 1.000
summary = normalized source hash matched finalized malicious source
Findings
3 High2 Medium5 Low
HighInstall Time Lifecycle Scriptspackage.json
HighKnown Malware Source Similaritysetup.mjs
HighKnown Malware Source Fingerprint Signaturesetup.mjs
MediumNetwork
MediumStructural Risk Force Deep Review
LowScripts Present
LowEvalmath_init.js
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
Affected versions and remediation
This report applies to @ornikar/babel-preset-kitt-universal@8.0.7.
The versions list below shows the verdict for each recorded version.
- Avoid installing @ornikar/babel-preset-kitt-universal@8.0.7. 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: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.