2014 May 19 13:30 GMT
Email messages that are related to this threat (RuleID10017) may contain the following files:
The enzo.exe in the enzo.zip file has a file size of 239,616 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0x72393660ADE470C38A931DB0C2A65DC0
The following text is a sample of the email message that is associated with this threat outbreak:
> Message Body:
During the last months, facebook has been hacked so you are required to open the attached utility. It will generate a safe connection to facebook so your computer can be trusted.
Please enter the following keyword: enzo47
Facebook is attempting to contact all of our members fast but we have limited emailing capacity. Our network will be very thankful if you will email the attached program to your peers and family immediately.
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.
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