registry / Credential exfiltration / @ornikar/storybook-config
@ornikar/storybook-config
📖 storybook config files
This report shows the evidence for @ornikar/storybook-config@12.1.2. 9 of 9 known versions are blocked or flagged. The newest version, 12.1.10, is blocked. See all versions.
AI Security Review
scanned 3mo ago · by lpm-firewall-aiThe install hook executes an obfuscated, network-capable payload rather than package-aligned configuration code. Its remote eval and token-handling behavior establish malicious intent.
Static reason
One or more suspicious static signals were detected.; source matched previously finalized malicious package; routed for review
Trigger
npm preinstall
Impact
Arbitrary code execution and likely GitHub credential exfiltration on the installing machine.
Mechanism
downloaded runtime executes obfuscated credential-stealing remote-code payload
Attack narrative
During npm preinstall, setup.mjs obtains Bun if needed and runs math_init.js. That obfuscated payload contains fetched-response eval, child-process access, and logic handling `ghtoken` values, providing a concrete install-time credential theft and remote-code execution chain unrelated to Storybook configuration.
AI rationale
The install hook executes an obfuscated, network-capable payload rather than package-aligned configuration code. Its remote eval and token-handling behavior establish malicious intent.
Evidence
package.jsonsetup.mjsmath_init.jsindex.js
Network endpoints1
github.com
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 from github.com when absent and executes math_init.js during install.
- math_init.js is heavily obfuscated and contains an eval of a fetched response.
- math_init.js enumerates `ghtoken` values and contains network/child-process logic.
Evidence against
- index.js is a conventional Storybook configuration entrypoint.
- The only clear bootstrap host in setup.mjs is github.com/oven-sh Bun releases.
Behavioral surface
ChildProcessEnvironmentVarsEvalFilesystemNetworkShell
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 = @ornikar/react-native-svg-transformer@1.0.11
matchedPath = setup.mjs
matchedIdentity = npm:[redacted]:1.0.11
similarity = 1.000
summary = normalized source hash matched finalized malicious source
Findings
2 High3 Medium5 Low
HighInstall Time Lifecycle Scriptspackage.json
HighKnown Malware Source Similaritysetup.mjs
MediumNetwork
MediumEnvironment Vars
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/storybook-config@12.1.2.
The versions list below shows the verdict for each recorded version.
- Avoid installing @ornikar/storybook-config@12.1.2. 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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