registry / Remote code execution / nottuff2
nottuff2
Republished package
This report shows the evidence for nottuff2@2.0.0. 3 of 4 known versions are blocked or flagged. The newest version, 0.0.1-security, is allowed. See all versions.
AI Security Review
scanned 3mo ago · by lpm-firewall-aiSource inspection confirms immediate third-party remote code loading and a service-worker proxy transport. No install hook is needed for the package to create a harmful runtime attack surface when its declared entrypoint is used.
Static reason
One or more suspicious static signals were detected.
Trigger
User opens `index.html` or serves the package as its declared entrypoint.
Impact
Remote operators can execute code in the visitor's origin and potentially observe or alter proxied application traffic.
Mechanism
remote script execution plus service-worker-backed web proxy
Attack narrative
The package is presented as an npm package but declares an HTML page as its entrypoint. Loading that page executes a remote script from `c.vipersfutbol.com` without integrity pinning. Its bundled proxy bootstrap registers a service worker and routes selected requests through a WebSocket endpoint at `21baseballacademy.com`; the worker forwards request URLs, headers, and bodies to its controller. This is a concrete remote-code and traffic-interception surface, not merely an obfuscation signal.
AI rationale
Source inspection confirms immediate third-party remote code loading and a service-worker proxy transport. No install hook is needed for the package to create a harmful runtime attack surface when its declared entrypoint is used.
Evidence
index.htmlassets/boot-CVPGRFHh.jsj6k3y8.jsct1tl/jmqwjq.jsassets/ChatPage-zoA8Z6RX.js
Network endpoints2
c.vipersfutbol.com/script.jswss://21baseballacademy.com/fairs/
Decision evidence
public snapshotAI called this Malicious at 94.0% confidence as Malware with low false-positive risk.
Evidence for block
- `index.html` executes remote `https://c.vipersfutbol.com/script.js` on page load.
- `assets/boot-CVPGRFHh.js` registers `j6k3y8.js` service worker.
- `ct1tl/jmqwjq.js` intercepts routed fetches and forwards request bodies/headers through its controller.
- `assets/boot-CVPGRFHh.js` configures proxy WebSocket `wss://21baseballacademy.com/fairs/`.
- `assets/ChatPage-zoA8Z6RX.js` is heavily obfuscated and implements username/password sign-in requests.
Evidence against
- `package.json` has no npm lifecycle scripts.
- No Node entrypoint or filesystem/child-process harvesting was found.
- The KaTeX font blobs and WASM runtime are consistent with bundled browser assets.
Behavioral surface
ChildProcessDynamicRequireFilesystemNetworkWebSocket
HighEntropyStringsMinifiedObfuscatedProtestwareUrlStrings
Source & flagged code
7 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 Critical3 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
MediumDynamic Requirebfjdx/757lr8.js
MediumNetwork
MediumProtestware
MediumShips Wasm Modulebfjdx/w7m632.wasm
MediumStructural Risk Force Deep Review
MediumSecret Patternassets/livekit-C0E_jLSz.js
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
Affected versions and remediation
This report applies to nottuff2@2.0.0.
The versions list below shows the verdict for each recorded version.
- Avoid installing nottuff2@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: .
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