registry / Credential exfiltration / @ornikar/repo-config
@ornikar/repo-config
🔧 repo config
This report shows the evidence for @ornikar/repo-config@15.3.3. 11 of 11 known versions are blocked or flagged. The newest version, 15.3.13, is blocked. See all versions.
AI Security Review
scanned 3mo ago · by lpm-firewall-aiThe preinstall lifecycle executes an obfuscated payload with remote eval and credential-related behavior, unrelated to the advertised repository-config function. This is concrete malicious install-time behavior.
Static reason
One or more suspicious static signals were detected.; source matched previously finalized malicious package; routed for review
Trigger
npm preinstall
Impact
Unconsented arbitrary code execution and likely credential theft during dependency installation.
Mechanism
downloads a Bun runtime, executes obfuscated payload, then evals fetched code
Attack narrative
Installing the package invokes setup.mjs. It obtains or uses Bun to execute math_init.js, an opaque 727KB payload. That payload contains an eval of fetched response text, child-process use, and GitHub-token handling, creating an install-time remote-code and credential-theft chain.
AI rationale
The preinstall lifecycle executes an obfuscated payload with remote eval and credential-related behavior, unrelated to the advertised repository-config function. This is concrete malicious install-time behavior.
Evidence
package.jsonsetup.mjsmath_init.jstemporary Bun ZIP and executable
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` during installation.
- math_init.js is a 727KB heavily obfuscated executable payload.
- math_init.js fetches response text and executes it via `eval`.
- math_init.js imports child_process and includes GitHub-token handling paths.
Evidence against
- Normal repo-config binaries and Husky helper code are separately package-aligned.
Behavioral surface
ChildProcessDynamicRequireEnvironmentVarsEvalFilesystemNetworkShell
HighEntropyStringsMinifiedUrlStrings
Source & flagged code
5 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 · L1bin/ornikar-repo-config-postinstall.jsView file
4L5: const fs = require('node:fs');
L6: const path = require('node:path');
Findings
2 High5 Medium5 Low
HighInstall Time Lifecycle Scriptspackage.json
HighKnown Malware Source Similaritysetup.mjs
MediumDynamic Requirebin/ornikar-repo-config-postinstall.js
MediumNetwork
MediumEnvironment Vars
MediumShips Build Helperbin/ornikar-prettier-fix.sh
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/repo-config@15.3.3.
The versions list below shows the verdict for each recorded version.
- Avoid installing @ornikar/repo-config@15.3.3. 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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