Threat Outbreak Alert: Fake Image Notification Email Messages on February 18, 2014

2014-02-19T20:30:59
ID CISCO-THREAT-32918
Type ciscothreats
Reporter Cisco
Modified 2014-02-19T20:30:59

Description

Medium

Alert ID:

32918

First Published:

2014 February 19 20:30 GMT

Version:

1

Summary

  • Cisco Security has detected significant activity related to Portuguese-language spam email messages that claim to contain images for the recipient. The text in the e-mail message attempts to convince the recipient to follow a link and view the details. However, the link directs the user to a malicious .exe file that when executed, attempts to infect the system with malicious code.

Email messages that are related to this threat (RuleID8896) may contain the following file:

> cheque-6c9ffe8c3ffac84a0d85638699804d16.exe

The cheque-6c9ffe8c3ffac84a0d85638699804d16.exe file has a file size of 494,080 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0x800FF0E34909548E6FD6AEDCBD81A130

The following text is a sample of the email message that is associated with this threat outbreak:

> Subject: Fw: Tentei entrar em contato basutado@yahoo.com

Message Body:

On Tuesday, February 18, 2014 11:04 AM, Cheque <x0b8o3h5l@yopmail.com> wrote:
Desbloqueie as imagens para melhor visualização.
Desbloqueie as imagens para melhor visualização.
Exibir apresentação de slides (1) Baixar como zip
Já tentei contato váriaas vezes e você não me responde, infelizmente não vejo outra forma de receber se não, protestar seu cheque já que foi devolvido duas vezes.

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.

Related Links
Cisco Security
Cisco SenderBase Security Network

Revision History

  • Version | Description | Section | Date
    ---|---|---|---
    1 | Initial Release | | 2014-February-19 20:30 GMT
    Show Less

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