registry / Remote code execution / nottuff24
nottuff24
Republished package
This report shows the evidence for nottuff24@2.0.0. 3 of 3 known versions are blocked or flagged. See all versions.
AI Security Review
scanned 3mo ago · by lpm-firewall-aiDirect source inspection confirms automatic remote-code execution and local obfuscated dynamic execution when the declared HTML entrypoint is opened. Absence of npm lifecycle hooks does not mitigate this runtime attack path.
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
User opens or serves `index.html`.
Impact
Arbitrary browser-side code can execute and intercept/proxy browser requests for the served origin.
Mechanism
Remote script execution plus obfuscated dynamic payload loading and service-worker request interception.
Attack narrative
This is a browser-delivered payload rather than an install-time npm attack. Loading `index.html` immediately retrieves and executes JavaScript from `c.vipersfutbol.com`. Its local entry bundle also decodes/decompresses concealed content and executes it using `new Function`; supporting code registers a service worker that routes fetches and implements proxy and cookie transport. The remote, unpinned execution path and concealed dynamic execution create a concrete arbitrary-code and browser request-interception surface.
AI rationale
Direct source inspection confirms automatic remote-code execution and local obfuscated dynamic execution when the declared HTML entrypoint is opened. Absence of npm lifecycle hooks does not mitigate this runtime attack path.
Evidence
package.jsonindex.htmlassets/index-CJm_PfL2.jsassets/boot-CVPGRFHh.jsj6k3y8.jsct1tl/csbzam.jsct1tl/pap3do.jsbfjdx/757lr8.js
Network endpoints3
c.vipersfutbol.com/script.jswww.googletagmanager.com/gtag/js?id=G-0VL3ZSBXDHsj-cache.invalid/
Decision evidence
public snapshotAI called this Malicious at 99.0% confidence as Malware with low false-positive risk.
Evidence for block
- `index.html` auto-loads `https://c.vipersfutbol.com/script.js`.
- `assets/index-CJm_PfL2.js` contains an obfuscated base64/decompression loader and `new Function` execution.
- `assets/boot-CVPGRFHh.js` registers `j6k3y8.js` as a service worker.
- `j6k3y8.js` intercepts routed fetches; `ct1tl/` implements proxy/cookie transport.
- No npm lifecycle hook is needed: opening `index.html` triggers the remote script.
Evidence against
- `package.json` has no preinstall/install/postinstall hooks.
- No Node filesystem, shell, or environment-variable harvesting was found.
Behavioral surface
ChildProcessDynamicRequireFilesystemNetworkWebSocket
HighEntropyStringsMinifiedObfuscatedProtestwareUrlStrings
NoLicense
Source & flagged code
9 flagged · loading sourceassets/proxy-runtime-1NyFshf9.jsView file
1patternName = aws_access_key
severity = critical
line = 1
matchedText = var OQ=O...B+=`
Critical
Critical Secret
Package contains a critical-looking secret pattern.
assets/proxy-runtime-1NyFshf9.jsView on unpkg · L11patternName = aws_access_key
severity = critical
line = 1
matchedText = var OQ=O...B+=`
Critical
Secret Pattern
AWS access key ID in assets/proxy-runtime-1NyFshf9.js
assets/proxy-runtime-1NyFshf9.jsView on unpkg · L1bfjdx/757lr8.jsView file
17L18: //# sourceURL=${A}`)();n=c,o=l}else n=g.z$,o=g.Mt;r.construct&&(l.construct=function(e,t,i){let n,s=!1,a={fn:e,this:null,args:t,newTarget:i,return:e=>{s=!0,n=e},call:()=>(s=!0,n=o(...
L19: //# sourceURL=${r.url.href}`),n}return o.body;case"style":return(0,i.sM)(await o.text(),e.context,r.meta);case"sharedworker":case"worker":return(0,i.iP)(new Uint8Array(await o.arra...
Medium
Findings
2 Critical5 High6 Medium4 Low
CriticalCritical Secretassets/proxy-runtime-1NyFshf9.js
CriticalSecret Patternassets/proxy-runtime-1NyFshf9.js
HighObfuscated Payload Loaderassets/ChatPage-zoA8Z6RX.js
HighObfuscated
HighShips High Entropy Blobassets/KaTeX_Script-Regular-D3wIWfF6.woff2
HighKnown Malware Source Similarityassets/fingerprint-Y5nV5FVa.js
HighKnown Malware Source Fingerprint Signatureassets/ChatPage-zoA8Z6RX.js
MediumDynamic Requirebfjdx/757lr8.js
MediumNetwork
MediumProtestware
MediumShips Wasm Modulebfjdx/w7m632.wasm
MediumStructural Risk Force Deep Review
Medium
Affected versions and remediation
This report applies to nottuff24@2.0.0.
The versions list below shows the verdict for each recorded version.
- Avoid installing nottuff24@2.0.0. 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: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.