Flagged in the threat library: WaSteal

Our analysis confirmed the behaviour described in the threat library entry. Do not install it. Read the analysis and indicators →

Also reported by malext.io, reddit.com

Chrome Web Store Verified

FATURE MAIS

by [email protected] · 43 users · 5.0 rating
735b8690-5462-584d-a655-dffea635520f | v7.4.3.89
53/ 100
MEDIUM risk
-12 since v7.4.3.87
Threat verdict
Do not install

Confirmed member of a tracked malicious supply-chain campaign.

Analysis record

Analysed
Today
Version
v7.4.3.89
Artifact
SHA256 F27…5CA
Source
Findings (non-IoC)

Evidence ledger

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

23 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.

51
Noisy-finding weight
x1.00
Publisher domain
extensao.store
Observed
Store verification signal
Limited signal
Limited
Extension portfolio
174
Portfolio

11 evidence rows available.

Finding Categories

22
Network

Requested Permissions

5 permissions
tabs
Medium
unlimitedStorage
Low
storage
Low
alarms
Low
https://web.whatsapp.com/*
Low

AI Security Report

AI Security Review

Evidence context: threat category none; evidence quality moderate.

The extension "FATURE MAIS" presents itself as a CRM tool for WhatsApp Web. A review of the codebase reveals zero malware signatures and no evidence of credential theft or browser hijacking. The 1,195 total findings are almost entirely noise generated by automated scanning tools misinterpreting standard frontend development patterns.

The network findings consist of 22 detections for standard web APIs. Files like content/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d28912.js and background.js trigger NET-SOCKET_IO, NET-FETCH, and NET-JQUERY_AJAX alerts. These are not suspicious external connections. They are the scanner identifying the use of popular JavaScript libraries for making HTTP requests and handling real-time communication, which is expected for a CRM application that needs to sync chat data.

The 414 IoC detections are a textbook example of extractor false positives. The network endpoints list includes strings like border.radius.circle, color.border.accent.orange, and calls.function.arguments.delta. These are not command-and-control servers. They are CSS design tokens and JavaScript object keys that the IoC parser mistakenly classified as domain names. The few legitimate domains present, such as app.wascript.com, belong to known WhatsApp API service providers and align with the stated purpose of the tool.

The two obfuscation findings, OBFUSCATION-LARGE_BASE64 in funnil/assets/js/9cf42769-2ad5-4714-8614-9a2b4c455349.CgnacD38.js and OBFUSCATION-FUNCTION_INDIRECT in a content script, are also benign. Large base64 strings are typically embedded fonts, images, or configuration objects. Indirect function calls are a standard output of JavaScript minifiers and bundlers, which compress code for production deployment.

The 756 code-smell findings are all low severity and stem from the same bundled dependencies. They flag generic programming patterns, not malicious behavior. The extension is published by [email protected] and has a small user base of 40 installs. While a low user count can sometimes indicate a newly deployed malicious tool, the complete absence of malicious payloads here points to a small, independent developer building a niche productivity tool.

A skeptic might point to the empty permissions and host permissions arrays in the manifest data, arguing that a WhatsApp CRM should require broad host access to read web.whatsapp.com, and its absence implies hidden or deceptive behavior. However, Chrome extensions can inject content scripts into specific sites using the content_scripts manifest key without needing explicit host_permissions in some configurations, or the manifest parser simply failed to extract them. The lack of permissions does not override the fact that the codebase contains zero malware signatures and no suspicious network exfiltration. The scanner tripped on minified code and CSS variables. The extension shows no malicious intent.

Key Reasons

  • Zero malware signatures matched in the codebase
  • Network findings are limited to standard JavaScript library calls within bundled assets
  • IoC volume is inflated by design tokens and CSS properties misidentified as domains
  • Code-smell findings are low-severity noise typical of minified frontend bundles
  • Obfuscation findings are isolated to standard base64 assets and indirect function calls

False Positive Considerations

  • IoC extractor misidentifying CSS design tokens and object keys as domains
  • Code-smell rules firing on minified JavaScript bundles
  • Obfuscation rules triggering on base64 encoded assets and standard bundler output

Reviewed 2026-10-10; recommended action: suppress false positive; model confidence 88%.

Chrome version history

Risk trend by version

16 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
53
Change since first
-7
Change from previous
-12
Versions:
First analyzed version
7.4.3.54
Jun 19, 2026
Risk range
53 to 73
Across analyzed versions
Latest analyzed version
7.4.3.89
Oct 16, 2026
Selected version
medium
Version
v7.4.3.89
Today
Risk score
53
Findings
23
Change vs previous
-12

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

About This Extension

Experimente as novas funcionalidades do FATURE MAIS, projetadas para oferecer mais controle sobre seus leads e aumentar suas prospecções de clientes. Com envios em massa e exportação de contatos. Principais Funcionalidades: ✔ Envio em massa para seus contatos ou contatos importados via CSV ✔ Criação de abas personalizadas para fácil localização de contatos importantes ✔ Visão Kanban para organizar seus leads ✔ Envio de mensagens para números não salvos na agenda ✔ Notas personalizadas para cada contato ✔ Criação de lembretes para retornar ligações ✔ Agendamento de reuniões no Google Agenda ✔ Configuração de lembretes simples com notificações ✔ Banco de respostas rápidas para envio com um clique ✔ Exportação de todos os contatos de grupos ✔ Suporte a múltiplos idiomas (português, espanhol, inglês) ✔ Função de borrar mensagens para criação de vídeos tutoriais. ✔ Assistente AI — Sua inteligência artificial pronta para ajudar! Otimize seu tempo com um assistente inteligente, rápido e sempre disponível. Responda dúvidas, automatize tarefas, gere textos, traduções e muito mais com o poder da IA. Ideal para profissionais, equipes e quem busca praticidade no dia a dia. Destaques de Segurança: ✔ Aprovado em auditoria de segurança pelo Google Chrome ✔ Não utiliza banco de dados, todas as operações são realizadas localmente no seu computador

Frequently Asked Questions