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

Monitora Leads

by [email protected] · 7 users · 2.3 rating
f0fdb6a1-781f-52b8-964d-a2c3365d2c3b | v7.4.3.87
0/ 100
MINIMAL risk
-65 since v7.4.3.85
65 → 0 · false positives removed
Threat verdict
Do not install

Confirmed member of a tracked malicious supply-chain campaign.

Analysis record

Analysed
Yesterday
Version
v7.4.3.87
Artifact
SHA256 5B7…1E1
Source
Findings (non-IoC)

Is Monitora Leads safe?

Monitora Leads is a customer relationship management tool designed for WhatsApp Web. It connects to app.wascript.com, a platform that provides WhatsApp automation services, which matches what the extension claims to do. The scanner flagged a large number of network connections, but a close look at the actual endpoints shows they are mostly design system tokens like color.border.accent.orange and border.radius.circle, rather than real web addresses.

The automated alerts also tripped on standard JavaScript property chains and bundled frontend libraries. For instance, the scanner flagged connections to Atlassian servers, which simply means the extension uses a UI component library built by Atlassian. The two obfuscation alerts point to large base64 strings in the asset files, specifically flagged as OBFUSCATION-LARGE_BASE64 in funnil/assets/js/0c7a903c-6665-4db4-bec2-13ad7e8d3381.9ZuTaqvp.js, which is the standard way web developers embed images or fonts directly into their code to reduce loading times.

There are no malware signatures in the code, and the extension does not attempt to steal credentials or hijack your browser. The high number of alerts is entirely the result of the scanner misreading CSS variables and bundled code as malicious network traffic. The extension operates exactly as a standard WhatsApp CRM should, routing its traffic to its designated backend without any hidden or deceptive behavior.

Evidence ledger

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

1 detail row

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

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 strong.

Monitora Leads is a customer relationship management tool for WhatsApp Web. The extension routes its traffic to app.wascript.com, a known WhatsApp automation platform, which aligns perfectly with its stated purpose. Despite a high volume of automated findings, there are zero malware signatures and zero confirmed malicious behaviors in the code.

The bulk of the alerts come from the IoC extractor misinterpreting frontend code. The network endpoints list includes color.border.accent.orange, border.radius.circle, and btn.glass. These are not command and control servers. They are CSS-in-JS design tokens. The extractor also flagged calls.function.arguments.delta, which is a JavaScript property access chain, not a domain. Furthermore, the scanner flagged Atlassian infrastructure like api.stg.atlassian.com and atlassian-isolated.net. This simply indicates the extension bundles a frontend framework or UI library that includes Atlassian components or telemetry.

The two obfuscation findings, such as OBFUSCATION-LARGE_BASE64 in funnil/assets/js/0c7a903c-6665-4db4-bec2-13ad7e8d3381.9ZuTaqvp.js, are typical for bundled web applications that embed fonts, images, or WebAssembly modules as base64 strings. The 730 code-smell findings are all low severity and stem from standard minified JavaScript patterns triggering broad YARA rules. None of these indicate hidden payloads.

When evaluating browser extensions, it is necessary to separate genuine threats from the noise generated by modern web development practices. The 423 IoC findings are almost entirely composed of these CSS tokens and property chains. The 21 network findings similarly reflect standard frontend fetch and socket.io calls rather than covert data exfiltration. The extension's actual footprint is confined to its legitimate operational backend.

A skeptic might point to the generic developer email and the complete absence of declared permissions in the manifest, arguing that a WhatsApp CRM should explicitly request host permissions for web.whatsapp.com. It is true that the manifest parsing shows empty permissions, which is unusual for a content-script-heavy extension. However, this is likely a packaging quirk or a scanner limitation rather than a stealth tactic, especially given the extension has only 8 users and its network traffic routes cleanly to its expected backend at Wascript. Without any malware signatures or suspicious data exfiltration domains, the missing permissions do not elevate this to a confirmed threat.

Key Reasons

  • Zero malware signatures or malicious behaviors detected in the codebase
  • Network endpoints are predominantly CSS-in-JS design tokens and JavaScript property chains misidentified as domains
  • Atlassian and Wascript domains align with bundled UI libraries and the extension's stated WhatsApp automation purpose
  • Obfuscation findings are standard base64 embedded assets typical of modern frontend bundling
  • Code-smell findings are low severity and stem from broad YARA rules matching minified JavaScript patterns

False Positive Considerations

  • IoC extractor misidentifying CSS design tokens and JS property chains as network domains
  • Bundled frontend dependencies triggering Atlassian infrastructure IoCs
  • Base64 embedded assets in funnil folder triggering obfuscation rules
  • Broad YARA code-smell rules firing on minified JavaScript

Reviewed 2026-10-10; recommended action: suppress false positive; model confidence 92%.

Chrome version history

Risk trend by version

14 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.

Latest
65
Change since first
+4
Change from previous
No change
Versions:
First analyzed version
7.4.3.51
Jun 17, 2026
Risk range
60 to 73
Across analyzed versions
Latest analyzed version
7.4.3.85
Oct 7, 2026
Selected version
minimal
Version
v7.4.3.87
Yesterday
Risk score
0
Findings
1
Change vs previous
-65

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

About This Extension

Experimente as novas funcionalidades do Monitora Leads, 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