Cisco Security has detected significant activity related to Portuguese-language spam email messages that claim to contain an invoice statement for the recipient. The text in the email message attempts to convince the recipient to open the attachment and view payment details. However, the .zip
attachment contains a malicious .cpl
file that, when executed, attempts to infect the system with malicious code.
Email messages that are related to this threat (RuleID7372) may contain the following files:
file in the Fovorecido.zip
attachment has a file size of 247,808 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0x3FA83BA039FF9A1B5FD4D68A630A0B6A
The following text is a sample of the email message that is associated with this threat outbreak:
Subject: Fwd: valor foi debitado com sucesso!
-------- Mensagem original --------
Assunto: valor foi debitado com sucesso!
Data: Tue, 8 Oct 2013 19:33:56 -0300
De: Leonardo Peixoto
Este arquivo deve ser armazenado.
NFe - Emitida.PDF
Segue em anexo a cópia da NOTA FISCAL em PDF onde está a relação dos pedidos e demais detalhes do pagamento.
Informamos que o valor foi debitado com sucesso!
Qualquer dúvida em relação aos pedidos entrar em contato conosco que explicaremos!
Rj Net LTDA agradecemos a preferência!
Ana Paula Santos
Rj Net LTDA CNPJ:33.592.510/0001-54
Cisco Security analysts examine real-world email traffic data that is collected from over 100,000 contributing organizations worldwide. This data helps provide a range of information about and analysis of global email security threats and trends. Cisco will continue to monitor this threat and automatically adapt systems to protect customers. This report will be updated if there are significant changes or if the risk to end users increases.
Cisco security appliances protect customers during the critical period between the first exploit of a virus outbreak and the release of vendor antivirus signatures. Email that is managed by Cisco and end users who are protected by Cisco Web Security Appliances will not be impacted by these attacks. Cisco security appliances are automatically updated to prevent both spam email and hostile web URLs from being passed to the end user.
Cisco SenderBase Security Network