2013 October 22 18:37 GMT
Email messages that are related to this threat (RuleID7550) may contain the following files:
> OVERDUE PAYMENT INVOICE.zip
OVERDUE PAYMENT INVOICE.com
The OVERDUE PAYMENT INVOICE.com file in the OVERDUE PAYMENT INVOICE.zip attachment has a file size of 216,417 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0x68B37079C86707DE11B641C16F0A621C
The following text is a sample of the email message that is associated with this threat outbreak:
> Subject: FW: Copy of
ATTN: Dear Customer
We are writing this letter to call your attention to the below referenced overdue items with us.
Overdue Notice to Customer
Due Date: 09/17/2013
Invoice # 1007537
Due payment: $287.00
Find attach your invoice for initial payment.
We greatly appreciate your efforts to ensure that payment is received in a timely matter. Please note that a $100 reconnection fee may be charged if your account is suspended due to payment delays.
Thorpe K. Carlson
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