registry / Credential exfiltration / @ornikar/jest-config-react-native-web
@ornikar/jest-config-react-native-web
✅⚛️🌎 jest config with react-native-web
This report shows the evidence for @ornikar/jest-config-react-native-web@12.0.13. 11 of 11 known versions are blocked or flagged. See all versions.
AI Security Review
scanned 3mo ago · by lpm-firewall-aiDirect inspection confirms an install-time bootstrapper executing an obfuscated credential-oriented remote payload. This is concrete malicious supply-chain behavior, not a legitimate configuration-package function.
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 package installation (preinstall)
Impact
Remote code execution and probable credential exfiltration during install.
Mechanism
Bun bootstrap followed by obfuscated dynamic payload execution
Attack narrative
Installing the package invokes setup.mjs before user code. It uses an existing Bun binary or downloads a platform-specific Bun release, then runs the obfuscated math_init.js. That payload contains fetched-content eval and Git credential/token collection and upload behavior, which is unrelated to the declared deprecated Jest preset.
AI rationale
Direct inspection confirms an install-time bootstrapper executing an obfuscated credential-oriented remote payload. This is concrete malicious supply-chain behavior, not a legitimate configuration-package function.
Evidence
package.jsonsetup.mjsmath_init.jsjest-preset.jsREADME.md/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` at preinstall.
- setup.mjs downloads Bun from GitHub and executes `math_init.js`.
- math_init.js is heavily obfuscated and dynamically evaluates fetched content.
- math_init.js contains Git-token handling and network-upload logic unrelated to a deprecated Jest preset.
- The public entrypoint only throws a deprecation error, inconsistent with install-time downloader/payload.
Evidence against
- README and jest-preset.js describe a deprecated Jest configuration package.
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 = native-frontend-orb@1.1.17
matchedPath = setup.mjs
matchedIdentity = npm:bmF0aXZlLWZyb250ZW5kLW9yYg:1.1.17
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/jest-config-react-native-web@12.0.13.
The versions list below shows the verdict for each recorded version.
- Avoid installing @ornikar/jest-config-react-native-web@12.0.13. 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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