2014 April 10 18:30 GMT
Email messages that are related to this threat (RuleID9581) may contain the following files:
The pdf.exe file in the confirmation.zip attachment has a file size of 1,151,644 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0x04E4F68EB9E1FAD23816F73FB5BD864C
The following text is a sample of the email message that is associated with this threat outbreak:
> Subject: Proof of payment
**RELEASED from Quarantine: See notice at bottom.
Please find attached receipt of payment transferred.
NOTICE: This message was recently released from the Key Bank quarantine. All inbound executable files (.vbs, .exe, .pif, .bat, etc.) are temporarily quarantined until they can be manually scanned for viruses. As a result of this security requirement, delivery of this message may have been delayed.**
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