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

KFarias Inovação Tecnologica

bf3406f9-1c90-5cf9-944e-179ef5a7bd44 | 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
2 days ago
Version
v7.4.3.87
Artifact
SHA256 745…D93
Source
Findings (non-IoC)

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-3a9d8748d289216.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289163.jswhatsapp/wpp/index.js +27 more
-
LOWpostinstall persistence mechanism 19
fluxo/assets/js/aacac57f-f9a2-4a7d-9569-51c193124758.BUttUo7e.jsfunnil/assets/css/style.cssfluxo/assets/css/style.css +16 more
-
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.jswhatsapp/wpp/index.jsfluxo/assets/js/aacac57f-f9a2-4a7d-9569-51c193124758.BUttUo7e.js +12 more
-
LOWpostinstall file download 55
content/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d2897.jswhatsapp/wpp/index.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d28912.js +52 more
-
LOWNoUseEval 1
whatsapp/wpp/index.js
-
LOWNoUseWeakRandom 38
fluxo/assets/js/b89d7b82-41f7-4061-9bc0-ae95ae5cd0a2.BLiJgZ4E.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d2895.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d2894.js +35 more
-
LOWSQLInjection 1
fluxo/index.js
-
LOWpostinstall environment access 111
content/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d2899.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d28978.jsfluxo/assets/js/index.DUxSI4v-.js +108 more
-
LOWpostinstall network communication 94
content/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289225.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d28912.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d28938.js +91 more
-
LOWOriginsNotVerified 5
fluxo/assets/js/b89d7b82-41f7-4061-9bc0-ae95ae5cd0a2.BLiJgZ4E.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d2896.jsfluxo/index.js +2 more
-
LOWpostinstall crypto operations 44
crm/assets/js/modal.CMbmE-rI.jscrm/assets/js/emoji-picker-react.esm.aMh8OwYb.jsfluxo/assets/js/aacac57f-f9a2-4a7d-9569-51c193124758.BUttUo7e.js +41 more
-
LOWpostinstall system command 77
content/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289166.jscrm/index.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d28992.js +74 more
-
LOWpostinstall obfuscation 83
content/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289187.jscrm/index.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d28938.js +80 more
-
LOWpostinstall registry modification 8
crm/assets/js/b15575b9-e8eb-4d64-83b8-37d47f2b0b0a.BbRllemT.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289260.jscontent/assets/js/v_7_4_3_87_0a650f0a-57a6-4989-860e-3a9d8748d289175.js +5 more
-
LOWpostinstall file manipulation 172
fluxo/assets/js/useProcessIa.DaBdfAnN.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-3a9d8748d28940.js +169 more
-

Network Indicators

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

419 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.

47
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
419
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 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.

The extension "KFarias Inovação Tecnologica" presents itself as a CRM tool for WhatsApp Web. The scan produced 1,175 findings, but the nature of those findings tells a clear story about scanner noise rather than malicious behavior.

Zero malware signatures matched across the entire extension. This is the most important fact. Malware signatures detect known malicious code patterns, and their complete absence means the scanner found no evidence of credential theft, data exfiltration, browser hijacking, or other malicious payloads.

The 421 IoC findings are dominated by false positives from the extractor misreading CSS design tokens as domain names. The network endpoints list includes entries like border.radius.circle, btn.glass, color.border.accent.orange, and color.icon.accent.orange. These are not domains. They are CSS property names from a design system or component library that the IoC extractor incorrectly parsed. The real network endpoints in the list are Atlassian API domains (api.dev.atlassian.com, api.stg.atlassian.com) and Statsig CDN (api.statsigcdn.com), both legitimate infrastructure from bundled dependencies. The only potentially custom domain is app.wascript.com, which appears to be the extension's own backend service.

The 21 network findings in background.js and the content/assets/js/ directory are all fetch, socket.io, and jQuery AJAX calls in versioned, bundled JavaScript files. The file names like v_7_4_3_85_81c9fdf6-5aa3-4e05-88c1-f94c9eaf692012.js indicate build tool output, not hand-written malicious code. These files contain bundled npm dependencies, which explains the high volume of network calls.

The two obfuscation findings are in files with UUID-based names (0c7a903c-6665-4db4-bec2-13ad7e8d3381.9ZuTaqvp.js and v_7_4_3_85_81c9fdf6-5aa3-4e05-88c1-f94c9eaf6920253.js). These are characteristic of build tool output from webpack, esbuild, or similar bundlers. The OBFUSCATION-LARGE_BASE64 finding in a bundled asset file is expected behavior when libraries embed base64-encoded resources. This is not deliberate obfuscation to hide malicious intent.

The 730 code-smell findings are all low severity and fire on basic JavaScript patterns. These rules match common code constructs like fetch calls, environment variable access, and standard library usage. In a bundled extension with dozens of npm dependencies, these findings are multiplicative noise.

A skeptic might point to the zero user count and the generic developer email [email protected] as suspicious. A version number of 7.4.3.85 with no users is unusual. However, user count alone does not indicate malice, and the absence of any malware signatures or specific malicious behavior means these metadata anomalies do not constitute evidence of harm. The extension could be newly published, regionally restricted, or removed from the store. Without malware signatures or suspicious network endpoints, the scanner's findings do not support a malicious verdict.

Key Reasons

  • Zero malware signatures matched in the entire extension
  • Network endpoints are predominantly CSS design tokens misread as domains by the IoC extractor
  • Obfuscation findings are in bundled build output files with UUID-based names
  • All 730 code-smell findings are low severity noise from bundled dependencies
  • No specific malicious behavior or suspicious domains identified

False Positive Considerations

  • IoC extractor misreading CSS property names as domains
  • Code-smell rules firing on bundled npm dependencies
  • Build tool output misidentified as obfuscation
  • Network findings in compiled/bundled JavaScript files

Reviewed 2026-10-09; recommended action: suppress false positive; model confidence 75%.

Chrome version history

Risk trend by version

17 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 73
Across analyzed versions
Latest analyzed version
7.4.3.87
Oct 14, 2026
Selected version
medium
Version
v7.4.3.87
2 days ago
Risk score
65
Findings
1198
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 KFARIAS. 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. KFARIAS 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