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

SellerHub360

by [email protected] · 6 users · 5.0 rating
bfc6a84a-88c2-5326-8e46-34a6b0d0859d | v7.4.3.86
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
6 days ago
Version
v7.4.3.86
Artifact
SHA256 A89…0C9
Source
Findings (non-IoC)

Is SellerHub360 safe?

SellerHub360 is a customer-management dashboard that runs on top of WhatsApp Web, published through the extensao.store shop. The manifest we examined declares no special permissions and no host permissions, so everything the extension does runs from its own scripts. Most of the web addresses that turned up are nonsense: 'border.radius.circle' and 'calls.function.arguments.delta' are CSS values and JavaScript field names that the scanner read as domains. The entry that looks like a genuine service is app.wascript.com, the vendor's own backend for syncing chat data, alongside a feature-flag CDN at api.statsigcdn.com.

The findings worth explaining are the network ones. A content script named content/assets/js/v_7_4_3_86_085ff17f-7684-4a41-bfdd-8bd9d5293bb212.js opens a socket.io connection, and background.js:137 makes a fetch call. For a CRM that shows live WhatsApp conversations, a WebSocket and an HTTP call are the minimum needed to work. If that socket were sending your chats to an unrelated company, it would mean your conversations were being copied to a third party; the addresses recovered point at the vendor's own service instead.

Two obfuscation alerts fired as well, on funnil/assets/js/ed6113f2-bc09-4421-a453-bbbd66fe9488.DCssQ7AT.js and one of the content bundles. Both are what webpack output looks like: an embedded base64 asset and indirect function calls. No malware signature matched anywhere in the extension, and nothing in the code targets a login page, a password field or a browser setting.

That is why the findings here look worse than the code does. The scanner counted framework calls, minified bundle structure and hundreds of string fragments, and read the volume as trouble. The code does not support that reading.

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_86_085ff17f-7684-4a41-bfdd-8bd9d5293bb2212.jscontent/assets/js/v_7_4_3_86_085ff17f-7684-4a41-bfdd-8bd9d5293bb2182.jsfluxo/assets/js/daf37cd0-f0ab-4695-bf53-7f59a28f946f.B_kSv3Hj.js +27 more
-
LOWpostinstall persistence mechanism 19
content/assets/js/v_7_4_3_86_085ff17f-7684-4a41-bfdd-8bd9d5293bb2199.jswhatsapp/wpp/index.jscontent/assets/js/v_7_4_3_86_085ff17f-7684-4a41-bfdd-8bd9d5293bb23.js +16 more
-
LOWServerHostnameNotVerified 1
content/assets/js/v_7_4_3_86_085ff17f-7684-4a41-bfdd-8bd9d5293bb2.js
-
LOWLocalStorageShouldNotBeUsed 15
crm/index.jsfluxo/assets/js/51c96fe2-de18-4a51-8321-31e382281457.D-N0xPou.jscontent/assets/js/v_7_4_3_86_085ff17f-7684-4a41-bfdd-8bd9d5293bb227.js +12 more
-
LOWpostinstall file download 55
content/assets/js/v_7_4_3_86_085ff17f-7684-4a41-bfdd-8bd9d5293bb27.jscontent/assets/js/v_7_4_3_86_085ff17f-7684-4a41-bfdd-8bd9d5293bb225.jsfunnil/assets/ttf/Segoeuiitalic.chunk.ttf +52 more
-
LOWNoUseEval 1
whatsapp/wpp/index.js
-
LOWNoUseWeakRandom 38
content/assets/js/v_7_4_3_86_085ff17f-7684-4a41-bfdd-8bd9d5293bb244.jscontent/assets/js/v_7_4_3_86_085ff17f-7684-4a41-bfdd-8bd9d5293bb23.jscontent/assets/js/v_7_4_3_86_085ff17f-7684-4a41-bfdd-8bd9d5293bb214.js +35 more
-
LOWSQLInjection 1
fluxo/index.js
-
LOWpostinstall environment access 111
content/assets/js/v_7_4_3_86_085ff17f-7684-4a41-bfdd-8bd9d5293bb2259.jsfunnil/assets/js/22e13c6e-4942-4ae4-8827-bb3a258c5825.DbdGUX_W.jscontent/assets/js/v_7_4_3_86_085ff17f-7684-4a41-bfdd-8bd9d5293bb2174.js +108 more
-
LOWpostinstall network communication 94
content/assets/js/v_7_4_3_86_085ff17f-7684-4a41-bfdd-8bd9d5293bb223.jscontent/assets/js/v_7_4_3_86_085ff17f-7684-4a41-bfdd-8bd9d5293bb2128.js_metadata/verified_contents.json +91 more
-
LOWOriginsNotVerified 5
crm/assets/js/d6653158-a7fc-4ea6-8b92-e12c0e34e796.B8_nURbH.jsfluxo/assets/js/daf37cd0-f0ab-4695-bf53-7f59a28f946f.B_kSv3Hj.jsfunnil/assets/js/519c7000-9b58-4d38-93d3-b531a03af7c8.B8_nURbH.js +2 more
-
LOWpostinstall system command 77
_metadata/verified_contents.jsonfluxo/assets/js/emoji-picker-react.esm.BXnERab_.jsfunnil/assets/js/c1772cff-e6cb-49ab-a0a3-c65995b79740.DcKVToV-.js +74 more
-
LOWpostinstall obfuscation 83
content/assets/js/v_7_4_3_86_085ff17f-7684-4a41-bfdd-8bd9d5293bb221.jscontent/assets/js/v_7_4_3_86_085ff17f-7684-4a41-bfdd-8bd9d5293bb2269.jscontent/assets/js/v_7_4_3_86_085ff17f-7684-4a41-bfdd-8bd9d5293bb2148.js +80 more
-
LOWpostinstall registry modification 8
content/assets/js/v_7_4_3_86_085ff17f-7684-4a41-bfdd-8bd9d5293bb25.jsfunnil/assets/js/c5014c9f-5e7e-4a5e-971d-69a5eb7d6119.BBiWvLKc.jsfluxo/assets/js/51c96fe2-de18-4a51-8321-31e382281457.D-N0xPou.js +5 more
-
LOWpostinstall crypto operations 44
content/assets/js/v_7_4_3_86_085ff17f-7684-4a41-bfdd-8bd9d5293bb25.jsfunnil/assets/js/ed6113f2-bc09-4421-a453-bbbd66fe9488.DCssQ7AT.jscrm/assets/js/f97c5ce3-0a5a-4e4c-91fd-a481c50e41a1.CyPiqdYK.js +41 more
-
LOWpostinstall file manipulation 172
crm/assets/js/index.ByX2iicK.jscontent/assets/js/v_7_4_3_86_085ff17f-7684-4a41-bfdd-8bd9d5293bb238.jscrm/assets/js/f24d37bf-442f-4453-a037-f9bbcd9a216c.mzI81xJw.js +169 more
-

Network Indicators

Concrete URLs, domains, IPs, emails, and hashes extracted from the analyzed artifact.

427 total

Loading network indicators

IoC detail rows are loaded outside the initial page render.

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
427
IoC Indicators

YARA Rules Matched

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

SellerHub360 is a WhatsApp Web CRM: a content script that layers a sales dashboard over the chat interface. The manifest as extracted shows empty permission and host permission arrays, so the behavioural evidence sits in background.js and the bundled scripts under content/assets/js/.

The network findings record library behaviour. NET-FETCH-background.js-137 and NET-FETCH on content/assets/js/v_7_4_3_86_085ff17f-7684-4a41-bfdd-8bd9d5293bb2136.js:1 mark fetch() calls. NET-SOCKET_IO on v_7_4_3_86_085ff17f-7684-4a41-bfdd-8bd9d5293bb212.js:15 and ...bb2148.js:64 mark socket.io client code. NET-JQUERY_AJAX on ...bb224.js:181 marks jQuery's ajax transport. A CRM that live-syncs WhatsApp conversations needs a WebSocket plus an HTTP client, and socket.io is the standard choice. None of these findings identify a destination host.

The endpoint list is where the extractor falls apart. 'border.radius.circle', 'btn.glass', 'calls.function.arguments.delta' and 'avatar.online' are CSS keywords, API field paths and property chains that the string parser promoted to domains. '4g.ve', 'above.sm', 'ae.online' and 'af.pf' are two-letter fragments of the same kind. The entries that resolve to something real are app.wascript.com, the vendor's own service, api.statsigcdn.com, a feature-flag CDN, and a set of api.*.atlassian.com hosts that sit inside bundled client libraries.

The two obfuscation alerts are minification artifacts. OBFUSCATION-FUNCTION_INDIRECT on content/assets/js/v_7_4_3_86_085ff17f-7684-4a41-bfdd-8bd9d5293bb2259.js:1 flags indirect function invocation, which is how every webpack and esbuild bundle calls modules through its runtime. OBFUSCATION-LARGE_BASE64 on funnil/assets/js/ed6113f2-bc09-4421-a453-bbbd66fe9488.DCssQ7AT.js:1 flags an embedded base64 blob, the usual shape of a bundled font, icon sprite or inlined image. Neither is the deliberate string scrambling that hides intent.

What is absent carries weight. No malware signature matched, no secret was recovered, no tool-poisoning indicator fired, and no dependency finding is present. The remaining volume is code-smell, which fires on ordinary JavaScript patterns, plus IoC strings of the kind already shown to be garbage.

A skeptic could argue the opposite case. The publisher is an email address rather than a named company, the file names are content-hashed and opaque (v_7_4_3_86_085ff17f-...), and a base64 blob plus indirect calls is also what a hidden payload looks like. That reading fails on specifics: hidden payloads normally arrive with at least one credential-targeting indicator, one non-generic external host, or a malware family match, and this extension has none. The hashed names share one consistent version prefix across the whole content/ tree, which is what a build pipeline produces. What would change the picture is a socket.io endpoint resolving outside wascript.com, or a manifest entry granting access to sites beyond web.whatsapp.com.

Key Reasons

  • No malware signature, secret, dependency or tool-poisoning finding anywhere in the extension.
  • Network findings are framework detections (socket.io, fetch, jQuery ajax) in bundled content scripts, with no destination host attached.
  • Endpoint list is dominated by parser garbage such as 'border.radius.circle' and 'calls.function.arguments.delta'; the real hosts are app.wascript.com, api.statsigcdn.com and Atlassian API strings inside bundled libraries.
  • Both obfuscation alerts match standard webpack/esbuild output: an embedded base64 asset and indirect module calls.
  • Behaviour matches the stated product; a WhatsApp Web CRM needs a live socket and an HTTP client.

False Positive Considerations

  • IoC extractor promoted CSS values and JavaScript property chains to domains
  • Hundreds of low-severity code-smell hits on minified JavaScript
  • Content-hashed bundle files under content/assets/js/ multiply framework detections
  • Obfuscation rules firing on webpack output rather than deliberate string hiding

Reviewed 2026-10-13; recommended action: suppress false positive; model confidence 75%.

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
65
Change since first
+1
Change from previous
No change
Versions:
First analyzed version
7.4.3.32
Apr 18, 2026
Risk range
60 to 76
Across analyzed versions
Latest analyzed version
7.4.3.86
Oct 10, 2026
Selected version
medium
Version
v7.4.3.86
6 days ago
Risk score
65
Findings
1207
Change vs previous
No change

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

About This Extension

Transforme seu WhatsApp Web em um CRM completo com o SellerHub360. Prospecte clientes, gerencie leads com facilidade e exporte contatos para organizar seu funil de vendas e vender muito mais. Características: ✔ 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 do seu WhatsApp ✔ Crie lembretes de forma simples e seja notificado no seu próprio WhatsApp Web ✔ Crie um banco de respostas rápidas para enviar com um clique ✔ Exporte todos seus contatos do WhatsApp ou contatos de grupos de WhatsApp ✔ Use em seu idioma nativo (português, espanhol, inglês) ✔ Borre as mensagens do seu WhatsApp web 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. SellerHub360 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. WhatsApp é a marca registrada da WhatsApp Inc.

Frequently Asked Questions