registry / Credential exfiltration / @serifpersia/dango / 3.7.1

@serifpersia/dango@3.7.1

A web application for watching anime.

AI Security Review

scanned 2d ago · by lpm-firewall-ai

The default Google OAuth flow forwards stored refresh tokens to a publisher-controlled endpoint instead of Google's OAuth service. This supports blocking for credential exfiltration.

Static reason

High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review; source fingerprint signature matched known malicious package; routed for review

Trigger

Google token refresh when a saved access token is missing or expired.

Impact

The worker recipient can receive a reusable Google refresh token and access the associated account.

Mechanism

The server posts the saved refresh token to the configured worker's refresh route; the package supplies a publisher-controlled default endpoint.

Attack narrative

The server uses a publisher-controlled worker as its default Google OAuth handler. During refresh, it sends the stored Google refresh token to that worker. The source does not establish recipient-specific consent for forwarding the token, so this is a concrete disclosure of service credentials.

AI rationale

The default Google OAuth flow forwards stored refresh tokens to a publisher-controlled endpoint instead of Google's OAuth service. This supports blocking for credential exfiltration.

Evidence

server/dist/server.js

Network endpoints1

google-auth-client.ramiserifpersia.workers.dev

Decision evidence

public snapshot

AI called this Malicious at 94.0% confidence as Malware with low false-positive risk.

Evidence for block

The server defaults Google OAuth handling to a publisher-controlled worker endpoint.
When a saved Google refresh token is needed, the server sends it in a POST body to that worker's refresh route.

Evidence against

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsEvalFilesystemNetworkShell

Supply chain

HighEntropyStringsMinifiedPossibleObfuscationTelemetryUrlStrings

ManifestNo manifest risk signals triggered.

scanned 65 file(s), 7.34 MB of source, external domains: accounts.google.com, aln.youtube-anime.com, anilist.co, animepahe.pw, aomedia.org, api.aniskip.com, api.github.com, api.mangadex.org, api.themoviedb.org, cdn.discordapp.com, clients5.google.com, discord.com, discord.gg, discord.gift, discord.js.org, discord.new, github.com, google-auth-client.ramiserifpersia.workers.dev, graphql.anilist.co, image.tmdb.org, japaneseasmr.com, kitsu.app, mangadex.org, media.discordapp.net, mkissa.to, myanimelist.net, nodejs.org, oauth2.googleapis.com, raw.githubusercontent.com, reactrouter.com, registry.npmjs.org, s4.anilist.co, subtitles.vidy.st, trpc.io, uploads.mangadex.org, v3.sg.media-imdb.com, www.dlsite.com, www.googleapis.com, www.ibm.com, www.imdb.com, www.mangapill.com, www.w3.org, your-worker.workers.dev

Source & flagged code

18 flagged

server/dist/server.jsView file

Critical

Same File Env Network Execution

A single source file combines environment access, network access, and code or shell execution with blocking evidence.

server/dist/server.jsView on unpkg · L3

3causes have become circular...`;let n=$x(e);return n?(t.add(e),r+` L4: caused by: `+PG(n,t)):r},Dwe=e=>PG(e,new Set),HG=(e,t,r)=>{if(!Em(e))return"";let n=r?"":e.message||"";if(t.has(e))return n+": ...";let i=$x(e);if(i){t.add(e);let s=typeof e.cause=... L5: ${I}`,y=`, ... L21: ${m}${w} L22: ${I}`),f.pop(),`{${w}}`}case"number":return isFinite(h)?String(h):t?t(h):"null";case"boolean":return h===!0?"true":"false";case"undefined":return;case"bigint":if(n)return String(h)... L23: `:` ... L25: `);let n;for(;(n=ENe.exec(r))!=null;){let i=n[1],s=n[2]||"";s=s.trim();let o=s[0];s=s.replace(/^(['"`])([\s\S]*)\1$/mg,"$2"),o==='"'&&(s=s.replace(/\\n/g,` L26: `),s=s.replace(/\\r/g,"\r")),t[i]=s}return t}function mNe(e){e=e||{};let t=tV(e);e.path=t;let r=Rn.configDotenv(e);if(!r.parsed){let o=new E

Critical

Hardcoded Runtime Data Exfiltration

Source sends credentials or rich application records to a package-controlled external receiver enabled by default.

server/dist/server.jsView on unpkg · L3

Critical

Credential Exfiltration

Source appears to send environment or credential material to an external endpoint.

server/dist/server.jsView on unpkg · L3

Critical

Command Output Exfiltration

Source executes local commands and sends command output to an external endpoint.

server/dist/server.jsView on unpkg · L3

Critical

Browser Credential Phishing

Source appears to collect browser login credentials for exfiltration.

server/dist/server.jsView on unpkg · L3

262`)),E){let B=!this.#t;B&&(this.#t=new Ope.AsyncQueue,this.#t.wait(),this.#e.shift()),this.#r?.resolve(),this.#r=null,await sy(E);let y,w=new Promise(R=>y=R);this.#r={promise:w,reso... L263: Data: ${JSON.stringify(t,null,2)}`);this.rest.setToken(t.access_token),this.rest.options.authPrefix=t.token_type,this.refreshToken=t.refresh_token,this.refreshTimeout=setTimeout(()... L264: ${n.join(`\r ... L270: WHERE ${i} L271: AND l.id IS NULL`)).map(o=>o.id)}var bf="dango-mt-",wf=e=>!!e&&/^dango-mt-\d+$/.test(e),Vu=e=>Object.values(e).some(t=>typeof t=="string"&&t.startsWith(bf));si();Ut();ii();import P... L272: `).map(r=>r.trim()).filter(r=>r!=="").map(r=>r.replace(/:$/,""))}catch{return[]}}async init(){try{await this.executeCommand(["version"]);let t=await this.listRemotes();if(oe.RCLONE...

Critical

Remote Asset Decode Execute

Source fetches a remote non-code asset, decodes its contents, and dynamically executes the decoded payload.

server/dist/server.jsView on unpkg · L262

192In order to be iterable, non-array objects must have a [Symbol.iterator]() method.`)}var Z,ue=!0,Be=!1;return{s:M(function(){U=U.call(S)},"s"),n:M(function(){var j=U.next();return ... L193: In order to be iterable, non-array objects must have a [Symbol.iterator]() method.`)}var st,je=!0,Ve=!1;return{s:M(function(){te=te.call(H)},"s"),n:M(function(){var xe=te.next();re... L194: `)&&(w=c(w,E,"%0A")),u(w,"\r")&&(w=c(w,m,"%0D")),u(w," ")&&(w=c(w,I,"%09")),w})(y),B},"pathToFileURL"),URL:l}},883:(i,s,o)=>{function a(d){return a=typeof Symbol=="function"&&typeo...

High

Child Process

Package source references child process execution.

server/dist/server.jsView on unpkg · L192

271AND l.id IS NULL`)).map(o=>o.id)}var bf="dango-mt-",wf=e=>!!e&&/^dango-mt-\d+$/.test(e),Vu=e=>Object.values(e).some(t=>typeof t=="string"&&t.startsWith(bf));si();Ut();ii();import P... L272: `).map(r=>r.trim()).filter(r=>r!=="").map(r=>r.replace(/:$/,""))}catch{return[]}}async init(){try{await this.executeCommand(["version"]);let t=await this.listRemotes();if(oe.RCLONE... L273: params: ${r}`),this.query=t,this.params=r,this.cause=n,this.name="DrizzleQueryError",Error.captureStackTrace(this,gV),n&&(this.cause=n)}},fV=class extends Nf{static[ee]="Transactio...

High

Eval

Package source references dynamic code evaluation.

server/dist/server.jsView on unpkg · L271

•matchType = normalized_sha256 matchedPackage = @serifpersia/dango@3.7.0 matchedPath = server/dist/server.js matchedIdentity = npm:QHNlcmlmcGVyc2lhL2Rhbmdv:3.7.0 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

server/dist/server.jsView on unpkg

1import { createRequire as __createRequire } from 'node:module'; const require = __createRequire(import.meta.url); L2: var hbe=Object.create;var Lx=Object.defineProperty;var gbe=Object.getOwnPropertyDescriptor;var fbe=Object.getOwnPropertyNames;var Ebe=Object.getPrototypeOf,pbe=Object.prototype.has...

Medium

Dynamic Require

Package source references dynamic require/import behavior.

server/dist/server.jsView on unpkg · L1

orchestrator.jsView file

Lines 440-480javascript

440 // It only works for directly spawned node processes (prod); under a

441 // package-manager runner (dev) there is no IPC forwarding, so stdout tags remain the fallback signal.

442 stdio: withIpc ? ['ignore', 'pipe', 'pipe', 'ipc'] : ['ignore', 'pipe', 'pipe'

orchestrator.js#virtual:normalized:round1View file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 2

High

Semantic Analysis Limited

A bounded semantic-analysis stage reached its safety limit; remaining detectors completed, but this package requires AI review.

orchestrator.js#virtual:normalized:round1View on unpkg

client/dist/assets/hls-BOLXTnjL.jsView file

•matchType = normalized_sha256 matchedPackage = @serifpersia/dango@3.7.0 matchedPath = client/dist/assets/hls-BOLXTnjL.js matchedIdentity = npm:QHNlcmlmcGVyc2lhL2Rhbmdv:3.7.0 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

client/dist/assets/hls-BOLXTnjL.jsView on unpkg

client/dist/assets/index-C9FfV5Fg.jsView file

•matchType = normalized_sha256 matchedPackage = @serifpersia/dango@3.7.0 matchedPath = client/dist/assets/index-DxRnpRhu.js matchedIdentity = npm:QHNlcmlmcGVyc2lhL2Rhbmdv:3.7.0 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

client/dist/assets/index-C9FfV5Fg.jsView on unpkg

client/dist/assets/useMangaLibrary-C8eMKmfr.jsView file

•matchType = normalized_sha256 matchedPackage = @serifpersia/dango@3.7.0 matchedPath = [redacted]-8FuAAh_p.js matchedIdentity = npm:QHNlcmlmcGVyc2lhL2Rhbmdv:3.7.0 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

client/dist/assets/useMangaLibrary-C8eMKmfr.jsView on unpkg

Source & flagged code

18 flagged · loading source

server/dist/server.jsView file

Critical

Same File Env Network Execution

A single source file combines environment access, network access, and code or shell execution with blocking evidence.

server/dist/server.jsView on unpkg · L3

Critical

Hardcoded Runtime Data Exfiltration

Source sends credentials or rich application records to a package-controlled external receiver enabled by default.

server/dist/server.jsView on unpkg · L3

Findings

6 Critical11 High4 Medium6 Low

CriticalSame File Env Network Executionserver/dist/server.js

CriticalHardcoded Runtime Data Exfiltrationserver/dist/server.js

CriticalCredential Exfiltrationserver/dist/server.js

CriticalCommand Output Exfiltrationserver/dist/server.js

CriticalBrowser Credential Phishingserver/dist/server.js

CriticalRemote Asset Decode Executeserver/dist/server.js

HighChild Processserver/dist/server.js

HighShellorchestrator.js

HighEvalserver/dist/server.js

HighCross File Remote Execution Contextorchestrator.js

HighSemantic Analysis Limitedorchestrator.js#virtual:normalized:round1

Affected versions and remediation

This report applies to @serifpersia/dango@3.7.1.

See all versions of @serifpersia/dango for other recorded verdicts.

Avoid installing @serifpersia/dango@3.7.1. 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: 2026-10-20 18:34:26.704Z (UTC).

Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.

AI Security Review

Decision evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Related packages

Other credential exfiltration packages

Behavioral surface

Related packages

Other credential exfiltration packages

Source & flagged code