Flagged in the threat library: CaptainProducts

Our analysis confirmed the behaviour described in the threat library entry. Read the analysis and indicators →

Also reported by bleepingcomputer.com

Chrome Web Store

AI Grammar Checker

by [email protected] · 7.0K users · 4.5 rating
0063e217-7472-5bd3-b365-dc33194f073d | v2.0.1
85/ 100
CRITICAL risk
No change since v2.0.0
Threat verdict
Do not install

Confirmed member of a tracked malicious supply-chain campaign.

Analysis record

Analysed
3 weeks ago
Version
v2.0.1
Artifact
SHA256 848…C38
Source
Findings (non-IoC)

Evidence ledger

Ranked by severity · findings with a source location link to the code viewer

4 detail rows

Publisher Evidence

Limited evidence

[email protected]

Publisher identity, store signals, distribution reach, and warning signals used for context. Treat this as supporting evidence, not a clean bill of health.

Chrome does not expose the same publisher verification data as IDE stores, so this score is deliberately conservative.

38
Noisy-finding weight
x1.00
Publisher domain
No domain
Missing
Store verification signal
Limited signal
Limited
Extension portfolio
5
Portfolio

11 evidence rows available.

Finding Categories

2
Obfuscation
2
Network

Requested Permissions

3 permissions
sidePanel
Low
contextMenus
Low
https://ethereal-expanse.com/*
Low

AI Security Report

AI Security Review

Summary

MANUAL OVERRIDE (RiskyPlugins #68): adware, NOT a false positive. After ownership handoff ([email protected] to [email protected]), v1.0.1 injected an ads-platform payload beaconing to ext-ads-mvp.captain-products.workers.dev (jivo partner_id=49587, utm_source=extads). Part of an 8+ extension farm ~560k installs. Supersedes the stale v1.0.0 likely_false_positive verdict, which reviewed the pre-handoff clean version.

Key Reasons

  • Injected ad payload beaconing to captain-products C2 (TI-confirmed adware)
  • Ownership handoff then payload injection in v1.0.1
  • Member of 8+ extension adware farm (~560k combined installs)

Reviewed 2026-07-03; recommended action: flag adware; model confidence 95%.

Chrome version history

Risk trend by version

3 analyzed versions. Each point is the latest successful scan for that version; failed zero-score scans are hidden. Dates are based on first seen by risky plugins.

Selected
85
Change since first
No change
Change from previous
No change
Versions:
First analyzed version
1.0.1
Jun 9, 2026
Risk range
85 to 85
Across analyzed versions
Latest analyzed version
2.0.1
Sep 25, 2026
Selected version
critical
Version
v2.0.1
3 weeks ago
Risk score
85
Findings
4
Change vs previous
No change

Pick any point on the chart to explore that version's code below.

About This Extension

🎉 Welcome to our innovative AI Grammar Checker extension, designed to transform your editing workflow. Enjoy seamless corrections and refined text quality as every sentence is enhanced with clarity and precision. Regular updates keep your documents error‐free and professional. 🌟 Key Features: 1. Fast processing with ai grammar check for swift revisions. 2. Intuitive design adapts to multiple formats for smooth editing. 3. Robust error detection boosts confidence and content quality. 4. Show Changes toggle lets you turn correction highlights on or off. 🚀 Experience the speed and precision of our checker, engineered to elevate document quality. Each correction enhances clarity and style while reducing manual edits. Let the extension guide you through efficient, error‐free revisions. Easily enable or disable highlighted corrections using the Show Changes toggle. 📌 Why choose our extension? 🔹 Fast error spotting 🔹 Seamless text edits 🔹 Instant style fix 🔹 Clear punctuation view 🔹 Quick syntax check 📚 How It Works: ➤ Install the extension from the Chrome Web Store. ➤ Activate grammar check ai for thorough text review. ➤ Use grammar checker ai for targeted suggestions. ➤ Enjoy a streamlined process that simplifies editing. ✨ Discover smart functionality as grammar ai checker analyzes your writing in real time. Nuances are inspected to ensure punctuation, structure, and style meet professional standards. The tool adapts efficiently to your unique editing needs. 🚀 Additional Capabilities: 1️⃣ Benefit from grammer check ai that detects subtle errors. 2️⃣ Rely on grammar checker for consistent tone. 3️⃣ Use effective grammar check tools to perfect drafts. 🔥 Enhance communication with punctuation check that reviews every mark for accuracy. The extension ensures commas, periods, and symbols are correctly placed, contributing to coherent text. Enjoy improved readability and polished documents. 🧩 Advanced Corrections: • Use corrector to refine complex sentences. • Benefit from efficient grammar correction for quick fixes. • Rely on spelling check to catch typos. • Access online check for dynamic, cloud support. ⚡ Punctuation Perfection: 💎 Rely on punctuation checker for immediate corrections. 💎 Use grammar and punctuation checker for holistic editing. 💎 Achieve impeccable sentence structure with ease. 💎 Optimize content by following clear punctuation rules. 💡 Designed for all writers, our extension offers a user‐friendly interface and smooth navigation. The built‐in spell checker works to ensure every word is accurate, reducing typos. Enjoy a streamlined editing experience that fuels creativity. 💼 The sleek design and smart layout facilitate effortless editing. With real‐time updates, AI Grammar Checker integrates with your favorite tools. Enjoy balanced functionality and modern aesthetics for superior editing performance. 💡 Seamless Integration: 💠 Compatible with various text editors and platforms. 💠 Supports multi‐language documents with smooth transitions. 💠 Sync settings across devices for consistent performance. 💠 Automatic updates keep the tool cutting‐edge. 🚨 Trusted by professionals, our AI Grammar Checker delivers unmatched accuracy. Every feature is optimized to correct errors and improve readability. Benefit from proactive alerts and detailed suggestions that enhance every writing piece. ⭐ Performance Highlights: ▸ Enjoy rapid response times for real‐time evaluations. ▸ A streamlined interface minimizes distractions. ▸ Consistent results empower your creative process. ▸ Regular updates maintain state‐of‐the‐art performance. 🤔 Q&A: ❓ What is AI Grammar Checker? 💡 A smart editing tool. ❓ How does it work? 💡 Reviews text instantly. ❓ Is it effective? 💡 Delivers precise corrections. ❓ Does tool check punctuation? 💡 Ensures punctuation accuracy. ❓ How reliable is grammer check ai? 💡 Trusted by professionals. ❓ Does punctuation check cover marks? 💡 Reviews commas and periods. ⚡ Join a community of writers who rely on AI Grammar Checker for pristine content. The extension evolves with user feedback and expert insights, staying ahead of trends. Embrace a future of flawless writing with precision and professionalism. 🎨 Key Benefits: 🔑 Enhanced accuracy via ai grammar check and comprehensive reviews. 🔑 User‐friendly operation with grammar check ai integration. 🔑 Reliable support from grammar check ai in every document. 🔑 Comprehensive tools address all aspects of editing. 🎯 Optimize your workflow with features that simplify revisions and boost productivity. The extension transforms editing into an efficient experience, letting you focus on creative expression. AI Grammar Checker is your robust solution for flawless text.

Frequently Asked Questions