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

ZAPGYN

by [email protected] · 88 users · 5.0 rating
cdc93ecd-104e-5bd5-9327-b312c8cea359 | v7.4.3.87
65/ 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
Today
Version
v7.4.3.87
Artifact
SHA256 021…426
Source
Findings (non-IoC)

Is ZAPGYN safe?

ZAPGYN adds CRM features to WhatsApp Web, letting you organize chats and contacts from inside the app. The logged manifest lists no permission strings and no host permissions, so its reach comes from content scripts running in WhatsApp. The network endpoints tied to the bundle are a mix of library hosts such as api.statsigcdn.com and api.dev.atlassian.com, plus one service of its own, app.wascript.com.

The findings that look alarming mostly describe plumbing. NET-SOCKET_IO-content/assets/js/v_7_4_3_86_085ff17f-7684-4a41-bfdd-8bd9d5293bb2148.js:64 marks a socket.io client, which is how a live CRM keeps a session open with its server. NET-FETCH-background.js:137 marks a fetch call in the background script. A WhatsApp helper has to read your chat window and sync with a backend, so both are expected.

What the scanner tripped on is the size and packaging of the code. Hundreds of code-smell matches come from bundled JavaScript libraries. Hundreds of the collected domain-like values are not domains at all: ae.jobs, above.sm, btn.glass and border.radius.circle are UI strings read as hostnames. The two obfuscation matches, OBFUSCATION-LARGE_BASE64 in a hashed chunk and OBFUSCATION-FUNCTION_INDIRECT in a bundle file, are standard build-tool output.

No malware signature, no credential-stealing pattern and no exposed key turned up. The thing worth knowing is that any tool running inside WhatsApp Web can see your messages, so the trust question is about whoever operates app.wascript.com. Nothing we found shows data going anywhere other than that backend.

Evidence ledger

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

779 detail rows

YARA Rule Matches

16 rules
SeverityRuleHitsFilesMetadata
LOWcredential env files 30
content/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289213.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289145.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289240.js +27 more
-
LOWpostinstall persistence mechanism 19
fluxo/assets/js/emoji-picker-react.esm.LrTXoimj.jscrm/assets/js/emoji-picker-react.esm.aMh8OwYb.jsfunnil/assets/css/style.css +16 more
-
LOWpostinstall file download 55
content/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d2896.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289128.jscrm/assets/ttf/Segoeui.chunk.ttf +52 more
-
LOWNoUseEval 1
whatsapp/wpp/index.js
-
LOWNoUseWeakRandom 38
funnil/assets/js/2e0cf7f6-e9bc-41e0-84b5-f570a0e461c8.B8VBrnTG.jscrm/assets/js/2b070b0a-2c0f-4c9c-bb5b-938727270e32.CWg5n8f0.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289175.js +35 more
-
LOWSQLInjection 1
fluxo/index.js
-
LOWServerHostnameNotVerified 1
content/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289.js
-
LOWLocalStorageShouldNotBeUsed 15
content/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d2895.jscrm/assets/js/emoji-picker-react.esm.aMh8OwYb.jsfunnil/assets/js/68038811-0075-484f-8b19-297df42f51e1.CVYXH02z.js +12 more
-
LOWpostinstall environment access 111
content/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d2896.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289171.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d28975.js +108 more
-
LOWpostinstall network communication 94
content/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d28934.jsfluxo/assets/js/emoji-picker-react.esm.LrTXoimj.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289121.js +91 more
-
LOWOriginsNotVerified 5
funnil/assets/js/770d23cd-9021-4aef-887e-d47811b5c322.B8_nURbH.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d2896.jscrm/assets/js/b3c3d2a2-f432-4ecd-a3f4-0b4582cc4a6c.B8_nURbH.js +2 more
-
LOWpostinstall crypto operations 44
content/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d28924.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d2894.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d28922.js +41 more
-
LOWpostinstall system command 77
crm/assets/css/style.csswhatsapp/wpp_module/index.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289114.js +74 more
-
LOWpostinstall obfuscation 83
content/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d2895.jsfluxo/index.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289187.js +80 more
-
LOWpostinstall registry modification 8
content/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289175.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289260.jsfunnil/assets/js/68038811-0075-484f-8b19-297df42f51e1.CVYXH02z.js +5 more
-
LOWpostinstall file manipulation 172
content/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d28922.jsfunnil/assets/js/4996b552-cc74-45cb-b126-d42da07124b7.Due0rgrp.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289127.js +169 more
-

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

2
Obfuscation
22
Network
404
IoC Indicators

YARA Rules Matched

16 rules(754 hits)
credential env files postinstall persistence mechanism postinstall file download NoUseEval NoUseWeakRandom SQLInjection ServerHostnameNotVerified LocalStorageShouldNotBeUsed postinstall environment access postinstall network communication OriginsNotVerified postinstall crypto operations postinstall system command postinstall obfuscation postinstall registry modification postinstall file manipulation

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.

ZAPGYN adds CRM features to WhatsApp Web: chat organization, contact handling and campaign tools. The bundle is a large JavaScript application, and almost everything flagged inside it traces to bundled libraries or to the extractor misreading UI strings as network destinations.

Start with what did not match. Across the scan there are no malware-signature hits, no malware-family hits, no exposed secrets and no tool-poisoning findings. On a bundle this size that absence carries more weight than the 754 code-smell entries, which fire on ordinary JavaScript constructs.

The 22 network findings are library detections, not evidence of exfiltration. NET-JQUERY_AJAX-content/assets/js/v_7_4_3_86_085ff17f-7684-4a41-bfdd-8bd9d5293bb223.js, NET-SOCKET_IO-content/assets/js/v_7_4_3_86_085ff17f-7684-4a41-bfdd-8bd9d5293bb2148.js:64 and NET-FETCH-background.js:137 mark where jQuery's ajax helper, the socket.io client and the fetch API appear in the source. Those are the plumbing inside any bundled web app. Alone, they say nothing about where data goes or who controls the far end.

The endpoint list is the clearest sign of extractor noise. Entries like ae.jobs, above.sm, below.sm, btn.glass, avatar.online, border.radius.circle, artboard.phone and color.border.accent.orange are not hostnames a server could resolve. They are UI tokens, class-name fragments and JSON keys lifted out of the source. Mixed in are api.statsigcdn.com for feature-flag delivery and api.dev.atlassian.com plus atlassian-isolated.net for editor and collaboration libraries. One endpoint, app.wascript.com, belongs to a WhatsApp automation backend, which is what a WhatsApp CRM talks to.

The two obfuscation findings are routine for this kind of build. OBFUSCATION-LARGE_BASE64-funnil/assets/js/ed6113f2-bc09-4421-a453-bbbd66fe9488.DCssQ7AT.js points at a content-hashed chunk with inlined assets, and OBFUSCATION-FUNCTION_INDIRECT-content/assets/js/v_7_4_3_86_085ff17f-7684-4a41-bfdd-8bd9d5293bb2259.js is the indirect-call pattern webpack and Babel emit. Neither is a hand-written packer. The recorded manifest lists no permission strings and no host permissions, so reach comes from content scripts injected into WhatsApp Web rather than broad browser access.

The strongest argument against calling this clean is that a WhatsApp CRM runs inside your chat window. Its content scripts can read message text, and the socket.io and fetch calls in content/assets/js/ can move that data to a server while you work. That capability is real and it is the product. What is missing is any evidence the data path goes somewhere unexpected: no IoCs against login or banking domains, no cookie-access pattern, no obfuscated entry point, and the only non-CDN endpoint is the extension's own backend. A runtime capture of traffic to app.wascript.com would close that question.

Key Reasons

  • Zero malware-signature, malware, secret and tool-poisoning matches across 1183 findings; only medium and low severity entries exist.
  • All 22 network findings are library-level detections (NET-JQUERY_AJAX, NET-SOCKET_IO, NET-FETCH) inside content/assets/js and background.js, with no destination attribution.
  • Endpoint list is dominated by non-resolvable UI tokens (btn.glass, border.radius.circle, artboard.phone, above.sm), a signature of XIOC extractor noise.
  • Obfuscation findings are OBFUSCATION-LARGE_BASE64 and OBFUSCATION-FUNCTION_INDIRECT in webpack-style hashed bundle chunks, not a hand-written packer.
  • The only non-CDN endpoint, app.wascript.com, is a WhatsApp automation backend consistent with the extension's stated CRM purpose.

False Positive Considerations

  • 404 IoC entries include UI tokens, CSS class fragments and JSON keys misread as domains (ae.jobs, btn.glass, border.radius.circle, calls.function.arguments.delta).
  • 754 code-smell findings generated by bundled third-party libraries in content/assets/js and funnil/assets/js.
  • Obfuscation rules firing on webpack/babel output: large inlined base64 assets and indirect function-call patterns in content-hashed chunks.
  • High finding volume from dist-style bundled dependencies rather than from any single flagged behaviour.

Reviewed 2026-10-10; recommended action: suppress false positive; model confidence 76%.

Chrome version history

Risk trend by version

15 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
65
Change since first
+4
Change from previous
No change
Versions:
First analyzed version
7.4.3.54
Jun 19, 2026
Risk range
60 to 73
Across analyzed versions
Latest analyzed version
7.4.3.87
Oct 15, 2026
Selected version
medium
Version
v7.4.3.87
Today
Risk score
65
Findings
1183
Change vs previous
No change

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

About This Extension

Com novas funcionalidades para WhatsApp web, você pode ter mais controle sobre seus leads além de prospectar mais clientes com envios em massa e exportação de contatos na ZAPGYN. Crie um verdadeiro funil de CRM para vender mais. Características: ✔ Envio em massa para seus contatos ou contatos importados por CSV ✔ Crie Abas personalizadas, encontre facilmente seus contatos importantes Visão Kanban dos contatos do WhatsApp organize seus leads ✔ Envie mensagens para um número que não esteja na sua agenda ✔ Crie notas para cada contato dentro do contato ✔ Você tem que ligar de volta? Crie lembretes para cada contato ✔ Agende Reuniões no google agenda direto ✔ Crie lembretes de forma simples e seja notificado ✔ Crie um banco de respostas rápidas para enviar com um clique ✔ Exporte todos seus contatos ou contatos de grupos ✔ Use em seu idioma nativo (português, espanhol, inglês) ✔ Borre as mensagens para criar vídeos tutorias ✔ 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. Importante: ✔ Aprovado na auditoria de segurança do Google Chrome ✔ Não usa banco de dados, tudo acontece no seu computador. ZAPGYN é uma extensão independente do Chrome que adiciona recursos extras ao seu WhatsApp web, não fazemos parte do WhatsApp Inc., não temos contrato de uso ou licenças exclusivas

Frequently Asked Questions