Worm do WhatsApp tem como alvo usuários com malware bancário e rouba informações de login

Worm do WhatsApp tem como alvo usuários com malware bancário e rouba informações de login

Worm do WhatsApp tem como alvo usuários com malware bancário e rouba informações de login

Pesquisadores de segurança cibernética descobriram uma nova campanha sofisticada visando usuários do WhatsApp no ​​Brasil com malware autopropagável projetado para roubar credenciais bancárias e informações de login de troca de criptomoedas.

O ataque, detectado pela primeira vez em 29 de setembro de 2025, representa uma evolução perigosa nas táticas de engenharia social que explora a confiança dos usuários em contatos familiares para espalhar cargas maliciosas pelas redes de mensagens.

A campanha começa quando as vítimas recebem mensagens aparentemente legítimas de contatos do WhatsApp previamente infectados por meio da versão web da plataforma de mensagens.

Estas mensagens contêm arquivos ZIP com nomes como “NEW-20251001_150505-XXX_XXXXXXX.zip” ou usam termos em português como “ORCAMENTO” (Orçamento) e “COMPROVANTE” (Voucher) para parecerem autênticas.

As mensagens instruem especificamente os destinatários de que o conteúdo só pode ser visualizado num computador, afastando deliberadamente as vítimas dos dispositivos móveis, onde as proteções de segurança podem ser mais robustas.

Depois de baixado, o arquivo ZIP contém um arquivo LNK malicioso do Windows que aciona um processo complexo de vários estágios.

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