registry / Remote code execution / @ornikar/jest-config-react
@ornikar/jest-config-react
✅⚛️ jest config for react
This report shows the evidence for @ornikar/jest-config-react@18.0.7, the only known version.
AI Security Review
scanned 3mo ago · by lpm-firewall-aiThe install hook creates a concrete, concealed remote-code execution path. This behavior is incompatible with a Jest config package.
Static reason
One or more suspicious static signals were detected.; source matched previously finalized malicious package; routed for review
Trigger
npm install
Impact
Arbitrary code execution during dependency installation.
Mechanism
downloaded runtime launches obfuscated remote-code loader
Attack narrative
On installation, package.json runs setup.mjs. It downloads or invokes Bun and uses it to execute the bundled, obfuscated math_init.js. That payload contains network-response eval and process-execution capabilities, creating an install-time remote code execution chain unrelated to the package's declared Jest configuration.
AI rationale
The install hook creates a concrete, concealed remote-code execution path. This behavior is incompatible with a Jest config package.
Evidence
package.jsonsetup.mjsmath_init.js
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 preinstall runs setup.mjs.
- setup.mjs downloads Bun and executes math_init.js at install time.
- math_init.js is heavily obfuscated and contains fetch response eval.
- math_init.js includes child_process and token-handling logic.
Evidence against
- jest-preset.js is a conventional Jest configuration.
- No legitimate need connects a Jest preset to a hidden runtime bootstrapper.
Behavioral surface
ChildProcessEvalFilesystemNetworkShell
HighEntropyStringsMinifiedUrlStrings
Source & flagged code
3 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
2 High2 Medium5 Low
HighInstall Time Lifecycle Scriptspackage.json
HighKnown Malware Source Similaritysetup.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@18.0.7.
The versions list below shows the verdict for each recorded version.
- Avoid installing @ornikar/jest-config-react@18.0.7. 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: .
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