Threat Outbreak Alert: Malicious Files Linked by Email Messages on December 4, 2013

2013-12-05T22:16:23
ID CISCO-THREAT-32045
Type ciscothreats
Reporter Cisco
Modified 2013-12-05T22:16:23

Description

Medium

Alert ID:

32045

First Published:

2013 December 5 22:16 GMT

Version:

1

Summary

  • Cisco Security has detected significant activity related to spam email messages that direct users to files related to a retail business. The email messages direct users to files hosted on a remote web server. When the files are downloaded and executed on a system, they attempt to install malicious software.

Email messages that are related to this threat (RuleID8122) may contain the following file:

> CasasBahia-Protocolo-8321000002.exe

The CasasBahia-Protocolo-8321000002.exe file has a file size of 105,129 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0xEE386F28EDB08DCC5BA29D4147A17623

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 | | 2013-December-05 22:16 GMT
    Show Less

Legal Disclaimer

  • THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE ALERTS AT ANY TIME.

A standalone copy or paraphrase of the text of this document that omits the distribution URL is an uncontrolled copy and may lack important information or contain factual errors. The information in this document is intended for end users of Cisco products