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

ZAPSUPREMO

by [email protected] · 41 users · 5.0 rating
4de3600b-85a0-5ffd-bf56-0d1d8f10e980 | 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
1 weeks ago
Version
v7.4.3.87
Artifact
SHA256 555…F92
Source
Findings (non-IoC)

Is ZAPSUPREMO safe?

ZAPSUPREMO describes itself as a Chrome CRM. Its code lives in content/assets/js/ alongside a background.js that keeps a live socket.io connection open and issues fetch calls to a server. The scanned manifest lists no permissions and no host permissions, so the extension is not asking for access to your tabs, cookies or browsing history.

Two items in the scan deserve a mention. A file at funnil/assets/js/9cf42769-2ad5-4714-8614-9a2b4c455349.CgnacD38.js carries a large base64 block, which would matter if it turned out to be an encoded payload, though bundlers use base64 for fonts and icons as a matter of course. The network list includes app.wascript.com, which fits a chat-based CRM backend, and api.statsigcdn.com, a service used for feature flags.

Most of what got flagged is noise from minified code. Entries like border.radius.circle and btn.glass are CSS values that were read as hostnames, and the hundreds of code-quality hits fire on any large JavaScript bundle. No malware signature matched anywhere in the extension.

Nothing here shows the extension touching credentials, cookies or search settings. If you want a reason to hold off, it is that the publisher identifies only as [email protected] and the manifest permissions did not come through in the scan. Watching the actual traffic on that socket would answer the remaining question.

Evidence ledger

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

779 detail rows

YARA Rule Matches

16 rules
SeverityRuleHitsFilesMetadata
LOWpostinstall environment access 111
content/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d28987.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289142.jscrm/assets/js/index.C_YPtVeo.js +108 more
-
LOWpostinstall network communication 94
_metadata/verified_contents.jsoncontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289224.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289260.js +91 more
-
LOWOriginsNotVerified 5
crm/assets/js/b3c3d2a2-f432-4ecd-a3f4-0b4582cc4a6c.B8_nURbH.jsfluxo/index.jsfunnil/assets/js/770d23cd-9021-4aef-887e-d47811b5c322.B8_nURbH.js +2 more
-
LOWpostinstall crypto operations 44
content/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d28939.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d2897.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d2894.js +41 more
-
LOWpostinstall system command 77
content/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289128.jsfluxo/assets/js/modal.DwnKkzRB.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d28921.js +74 more
-
LOWpostinstall obfuscation 83
content/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289236.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d28921.jscrm/assets/js/index.CP_EcveZ.js +80 more
-
LOWpostinstall registry modification 8
funnil/assets/js/68038811-0075-484f-8b19-297df42f51e1.CVYXH02z.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289149.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d2895.js +5 more
-
LOWpostinstall file manipulation 172
crm/assets/js/index.CqdIRXBX.jsfunnil/assets/js/4996b552-cc74-45cb-b126-d42da07124b7.Due0rgrp.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289173.js +169 more
-
LOWpostinstall file download 55
funnil/assets/js/770d23cd-9021-4aef-887e-d47811b5c322.B8_nURbH.jsfluxo/assets/js/b89d7b82-41f7-4061-9bc0-ae95ae5cd0a2.BLiJgZ4E.jsfluxo/assets/js/index.tgWUt5OI.js +52 more
-
LOWNoUseEval 1
whatsapp/wpp/index.js
-
LOWNoUseWeakRandom 38
content/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d28925.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d2894.jsfunnil/index.js +35 more
-
LOWSQLInjection 1
fluxo/index.js
-
LOWcredential env files 30
content/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289106.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289119.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289163.js +27 more
-
LOWpostinstall persistence mechanism 19
funnil/assets/css/style.csscrm/assets/js/emoji-picker-react.esm.aMh8OwYb.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d2894.js +16 more
-
LOWServerHostnameNotVerified 1
content/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289.js
-
LOWLocalStorageShouldNotBeUsed 15
fluxo/assets/js/aacac57f-f9a2-4a7d-9569-51c193124758.BUttUo7e.jswhatsapp/wpp/index.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d28927.js +12 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
421
IoC Indicators

YARA Rules Matched

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

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.

ZAPSUPREMO lists itself as "um CRM no Google Chorme" and ships as version 7.4.3.87 with 41 users. Its network-capable code sits in content/assets/js/ and background.js. Three patterns repeat across it: NET-FETCH in background.js:137 and in most of the v_7_4_3_87_0a650f0a-*.js files, NET-JQUERY_AJAX in ...23.js and ...24.js, and NET-SOCKET_IO in ...12.js, ...149.js, ...175.js and ...66.js. A persistent socket plus fetch calls is what a chat-driven CRM looks like. The scanned manifest declares no permissions and no host permissions, which is unusual for that design and is the main gap in the data.

Two obfuscation findings sit in the bundle: OBFUSCATION-LARGE_BASE64 in funnil/assets/js/9cf42769-2ad5-4714-8614-9a2b4c455349.CgnacD38.js:1 and OBFUSCATION-FUNCTION_INDIRECT in content/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289260.js:1. A base64 block in a hashed filename and an indirect-call wrapper are worth naming. Both are also ordinary build output: webpack and esbuild emit hashed names, and inline base64 is how bundlers embed fonts, icons and small data. Neither finding is paired with a malware signature. Every malware and malware-signature bucket came back at zero, as did secrets, dependencies and tool-poisoning.

The endpoint list shows why count-based triage fails here. Entries like border.radius.circle, btn.glass, color.border.accent.orange and calls.function.arguments.delta are CSS values and minified property chains the extractor read as hostnames. above.sm, ae.jobs, af.pf and be.audio are two and three letter fragments from the same source. The endpoints that are real are app.wascript.com, which matches the WhatsApp-facing behaviour a Brazilian CRM needs, and api.statsigcdn.com, a feature-flag CDN. The 422 IoC findings and the 754 code-smell findings track the volume of minified JavaScript in content/assets/js/, nothing else.

A skeptic can point at the versioned filenames, the hashed file under funnil/, and a publisher whose only identity is [email protected], a storefront address rather than a company. An extension holding a live socket with no declared permissions could be shipping session data somewhere the manifest does not admit. That concern is real. Runtime capture of the socket.io connection and of the fetch targets in background.js would settle it, and static scanning has taken this as far as it goes. What the static evidence lacks is everything that separates a bundled app from malware: no credential access finding, no cookie handling, no dynamic URL template construction, no obfuscated payload co-located with a malware signature.

Sitting alongside the noise are two facts that keep this from being a clean bill of health. The obfuscation flags are both rated medium, and the manifest permissions did not come through in the scan. Neither is evidence of harm, and neither outweighs a completely empty malware bucket across a 1,201-finding analysis.

Key Reasons

  • Zero malware and zero malware-signature findings across 1,201 total findings
  • IoC list contains extractor artifacts (border.radius.circle, btn.glass, calls.function.arguments.delta, above.sm) rather than real hosts
  • Network findings are generic library detections (NET-JQUERY_AJAX, NET-SOCKET_IO, NET-FETCH) in minified content/assets/js/ bundles
  • Both obfuscation flags (OBFUSCATION-LARGE_BASE64 in funnil/, OBFUSCATION-FUNCTION_INDIRECT) match standard bundler output with no co-located malware signature
  • No credential, cookie, secret or dynamic URL template findings despite a CRM description

False Positive Considerations

  • IoCs extracted from minified CSS tokens and property chains (border.radius.circle, calls.function.arguments.delta, btn.glass)
  • 754 low-severity code-smell findings generated by bundled JavaScript in content/assets/js/
  • Obfuscation flags on normal build output: hashed filenames and inline base64 in funnil/
  • Generic network detections on standard jQuery ajax, fetch and socket.io calls

Reviewed 2026-10-11; recommended action: monitor; model confidence 70%.

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 9, 2026
Selected version
medium
Version
v7.4.3.87
1 weeks ago
Risk score
65
Findings
1202
Change vs previous
No change

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

About This Extension

Características do ZAPSUPREMO: ✔ 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. ZAPSUPREMO 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