Security Alert: Confirmed Malware

This extension was removed from the Chrome Web Store as malware. Do not install it.Extension: ByteLingo英语助手

CRITICAL RISKRemoved from Chrome Web Store

ByteLingo英语助手

ID: piohjkdnimmdkfndlfhjbifcjoedfdbo

Could be malicious

Supported Languages

🇨🇳Chinese (Simplified)

Extension Info & Metadata

Status

Removed

Version

2.10.11

Size

2.44 MB

Rating

5.0/5

Reviews

Users

4,000

Type

Extension

Updated

Jul 5, 2024

Publisher Contextual Analysis

Author: bytelingo-chromeView Profile
Privacy: Privacy Policy
MX records exist: Yes
Domain exists: Yes
Is disposable: No
Is role-based: No
Mailbox exists: Yes

Total Extensions

Active

Obsolete

Listed

Unlisted

Total Users

4,000

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Bytelingo Assistant

Working with bytelingo and building an English learning environment that is interesting and enjoyable. bytelingo tool helps you to learn in English. YouTube You can choose the videos you are interested in to learn and develop your comprehension in context. Feishu Docs Integrated toolbar in Feishu documents and helps translate words and sentences. Other Websites Words translation, collection of new words, etc

User Growth

Showing data from Feb 19, 2022 to Mar 25, 2024

Versions

No change in user count

Compared to 4 months ago

23 versions released in this period

Rating Count

Total: 5 ratings

Average Rating

Current: 5.00 / 5.0+5.00

Extracted Data

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By severity

Critical0

High5

Medium3

Low0

Versions scanned

Showing 1 of 27 scanned versions with more than one unique finding. Counts are unique findings that include each version.

Extension Version	Code Review Findings
2.8.9 Code review	8

Extension Version	Code Review Findings
2.8.9	8

Files with findings

2 distinct paths — top paths by unique finding count:

background.bundle.js7
assets/tcc.ts1

S.No.	Category	Severity	File	Summary	Found in Version
1	Credential Theft	high	assets/tcc.ts (line 1)	The TCC feature-control configuration explicitly lists `https://platform.openai.com/account/api-keys` alongside internal ByteDance security admin pages in a URL matching list. The presence of the OpenAI API keys page …	2.8.9
2	Credential Theft	high	background.bundle.js (line 601)	Login tokens issued by ByteDance's Feishu/Lark OAuth (`passport.feishu.cn`) are stored in `chrome.storage.sync` under the key `CHROME-EXTENSION-AUTHENTICATION-TOKEN`. Chrome sync storage replicates this token to all d…	2.8.9
3	Network Interception	high	background.bundle.js (line 890)	The `FetchMonitor` class replaces the global `self.fetch` function in the service worker with a wrapping proxy. Every outgoing fetch call made by the extension has its URL, HTTP status code, and the ByteDance-specific…	2.8.9
4	Tracking	high	background.bundle.js (line 11362)	The background service worker registers a listener on `chrome.tabs.onUpdated` that fires for every tab across the entire browser. Whenever any tab URL changes, the new URL is immediately broadcast to the content scrip…	2.8.9
5	Unauthorized Data Collection	high	background.bundle.js (line 8127)	An embedded ByteDance telemetry SDK (`BgMonitor`) is initialized with `bid: "bytelingo_chrome"` and sends batched event data — including `user_id`, `device_id`, `session_id`, `view_id`, and custom `from`/`version` fie…	2.8.9
6	Network Interception	medium	background.bundle.js (line 11386)	A `webRequest.onBeforeRequest` listener intercepts all requests to `www.youtube.com/api/timedtext` — YouTube's caption/subtitle API. The listener parses the full query string of these requests and extracts parameters …	2.8.9
7	Unauthorized Data Collection	medium	background.bundle.js (line 1533)	The `getFetchTransport` utility — used by the ByteDance telemetry SDK — sets `credentials: "include"` on all cross-origin fetch requests. This forces the browser to attach the user's existing session cookies to every …	2.8.9
8	Unauthorized Data Collection	medium	background.bundle.js (line 1235)	The JS error monitor captures `window.location.href` (the full current page URL) whenever a JavaScript error occurs and includes it in the error report sent to ByteDance's backend via `sendErrorToBg`. Similarly, the r…	2.8.9

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URLs

IPv4

IPv6

URLs

View the external URLs this extension communicates with to understand its network activity and data interactions.

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reactjs.org	/docs/error-decoder.html	https://reactjs.org/docs/error-decoder.html?invariant=
www.w3.org	/1999/xlink	http://www.w3.org/1999/xlink
www.w3.org	/XML/1998/namespace	http://www.w3.org/XML/1998/namespace
www.w3.org	/1999/xhtml	http://www.w3.org/1999/xhtml
www.w3.org	/1998/Math/MathML	http://www.w3.org/1998/Math/MathML
www.w3.org	/2000/svg	http://www.w3.org/2000/svg
reactjs.org	/link/react-polyfills	https://reactjs.org/link/react-polyfills
lingo-chrome.web.bytedance.net	-	https://lingo-chrome.web.bytedance.net/
bytelingo.bytedance.net	-	https://bytelingo.bytedance.net
e.openlanguage.com	-	https://e.openlanguage.com

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No IP addresses found

5.0 out of 5 · 5 most recent reviews

Text reviews

Positive

Negative

相当的实用，期待更多AI功能拓展~

乔

乔向阳·9 Mar 2023

相当的��用，期待更多AI功能拓展~

乔

乔向阳·9 Mar 2023

相当的实用，期待更多AI功能拓展~

乔

乔向��·9 Mar 2023

Version History

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Code Diff

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0 changed files detected

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Browse and explore files within this extension package

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Security Alert: Confirmed Malware

ByteLingo英语助手

Supported Languages

Extension Info & Metadata

Publisher Contextual Analysis

Chrome Web Store Metadata

About this extension

Analytics & Metrics

User Growth

Rating Count

Average Rating

Static Code Security Analysis

Extracted Data

Code Review Findings Summary Across 27 Versions8

Versions scanned

Files with findings

Extracted Indicators (URLs and IPs)

URLs

Contextual Analysis

User Reviews

Version History

Version-to-Version Code Diff

Code Diff

Extension Files

User Reviews

User Growth

Rating Count

Average Rating