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

MULTIZAP CRM

by [email protected] · 24 users · 5.0 rating
ddd69e37-1791-572f-bdac-3eae827573f1 | v7.4.3.87
53/ 100
MEDIUM risk
No change since v7.4.3.85
Threat verdict
Do not install

Confirmed member of a tracked malicious supply-chain campaign.

Analysis record

Analysed
3 days ago
Version
v7.4.3.87
Artifact
SHA256 F96…508
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.

MULTIZAP CRM adds CRM features to WhatsApp Web: chat organization, labels and contact handling, per its own description. Version 7.4.3.87 produced 23 findings, all medium severity, and each one traces to ordinary web plumbing rather than to hostile behavior.

Twenty-two of the findings are network detections. They are library signatures, not destinations. NET-JQUERY_AJAX fires in content/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d28923.js, NET-SOCKET_IO fires in ...28912.js and ...289149.js, and NET-FETCH fires in ...289137.js, ...289179.js and background.js:137. Socket.io and jQuery's AJAX layer are how a chat tool maintains a live connection to a backend, and fetch is how background.js reaches whatever API it uses. A CRM layered over WhatsApp Web needs exactly those three things. No finding names a redirect template, a custom search domain, or a hardcoded host that isn't part of the extension's own service.

The two remaining hits are classed as obfuscation. OBFUSCATION-LARGE_BASE64 points at funnil/assets/js/9cf42769-2ad5-4714-8614-9a2b4c455349.CgnacD38.js, a vendor asset carrying a large base64 block. Blocks that size in a shipped asset are normally embedded images, icon sets or font data. OBFUSCATION-FUNCTION_INDIRECT fires on content/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289260.js, a minified bundle, where indirect calls are a byproduct of renaming and reordering functions. Neither is a malware signature, and the scan matched none of those. It also matched no known-bad domains, no cookie or token access, and no dependency or tool-poisoning indicators. The version string 7.4.3.87 indicates a product that has been through many release cycles, which fits a commercial tool rather than a throwaway payload.

A skeptic has a reasonable case. An extension that reads every WhatsApp conversation, holds an open socket to a remote server, ships an unexplained base64 asset, and comes from a publisher identified only as [email protected] with 24 users is the same shape as a session stealer. Third-party WhatsApp automation has a poor track record, and reading chat data is the first step in exfiltrating it. What separates this scan from a genuine hijack report is that nothing here targets a session. There is no cookie read, no request to a WhatsApp auth endpoint, no credential field scrape, and no unknown host captured in the findings. The same evidence would look very different if a single IoC pointed at a non-Google, non-CDN domain.

The gap worth naming: the scan recorded no endpoint list and no permission strings, so the destinations of the socket.io and fetch calls are unverified rather than proven clean. The base64 asset is likewise unopened. A runtime capture of the socket.io handshake and one decode of that blob would settle both questions. Everything the static scan did see is explained by the libraries the extension bundles.

Key Reasons

  • Zero malware signatures, zero IoCs, zero credential-access or tool-poisoning findings; the scan's 22 network hits are framework detections (NET-JQUERY_AJAX, NET-SOCKET_IO, NET-FETCH) inside bundled content scripts and background.js:137.
  • Socket.io and fetch calls are the expected mechanism for a WhatsApp Web CRM that syncs chat labels and contacts with a backend.
  • The only obfuscation hits are a large base64 block in the vendor asset funnil/assets/js/9cf42769-2ad5-4714-8614-9a2b4c455349.CgnacD38.js and an indirect call in the minified bundle ...289260.js, both consistent with normal build output.
  • No hijack artifacts (search templates, redirect endpoints) and no credential or session targets appear in any finding.

False Positive Considerations

  • Framework-level network rules (NET-JQUERY_AJAX, NET-SOCKET_IO, NET-FETCH) fire on any bundled jQuery, socket.io or fetch usage in content scripts
  • Minified vendor bundles named v_7_4_3_87_.js each contribute an identical detection, multiplying one library into many findings
  • OBFUSCATION-LARGE_BASE64 matches an embedded asset blob in a vendor file rather than packed or encrypted code
  • OBFUSCATION-FUNCTION_INDIRECT matches normal minifier output in a bundled file

Reviewed 2026-10-16; recommended action: monitor; model confidence 74%.

Chrome version history

Risk trend by version

20 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
-11
Change from previous
No change
Versions:
First analyzed version
7.4.3.24
Mar 11, 2026
Risk range
53 to 73
Across analyzed versions
Latest analyzed version
7.4.3.87
Oct 13, 2026
Selected version
medium
Version
v7.4.3.87
3 days ago
Risk score
53
Findings
23
Change vs previous
No change

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

About This Extension

Características do MULTIZAP CRM: ✔ Envio em massa para contatos ou importados via CSV – Envie mensagens para múltiplos contatos de maneira rápida e prática, sem complicação. ✔ Criação de Abas Personalizadas – Organize seus contatos de forma eficiente e encontre facilmente os mais importantes. ✔ Visão Kanban dos Contatos – Tenha uma visão clara e organizada dos seus contatos com a opção de arrastar e soltar. ✔ Envio de Mensagens para Números Não Salvos – Envie mensagens para qualquer número, mesmo que não esteja na sua agenda, sem precisar adicionar à lista de contatos. ✔ Criação de Notas Personalizadas – Anote informações importantes para cada contato diretamente no perfil deles. ✔ Lembretes para Contatos – Nunca se esqueça de retornar uma ligação ou seguir com um compromisso. Crie lembretes específicos para cada contato. ✔ Agendamento de Reuniões no Google Agenda – Agende compromissos diretamente no seu Google Agenda com facilidade, sem precisar sair da plataforma. ✔ Lembretes Simples e Notificações – Crie lembretes rápidos e receba notificações diretamente no seu dispositivo. ✔ Banco de Respostas Rápidas – Tenha respostas pré-configuradas e envie com um clique para otimizar seu tempo. ✔ Exportação de Contatos do Wpp – Exporte seus contatos diretamente do Wpp ou de grupos de Wpp para facilitar a organização. ✔ Suporte Multilíngue – Use a plataforma em seu idioma nativo: português, espanhol ou inglês, garantindo facilidade de uso. ✔ 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. MULTIZAP CRM é uma ferramenta independente, sem qualquer vínculo com o WhatsApp ou a empresa responsável. Funciona exclusivamente através da Chrome Web Store e opera de maneira autônoma. Não somos uma ferramenta oficial do WhatsApp, mas oferecemos funcionalidades inovadoras para quem precisa de mais praticidade na gestão de contatos e mensagens.

Frequently Asked Questions