Threat Outbreak Alert: Fake Bank Transaction Notification Email Messages on October 16, 2013

Medium

Alert ID:

31293

First Published:

2013 October 16 15:17 GMT

Version:

1

Summary

• Cisco Security has detected significant activity related to spam email messages that claim to contain bank transaction notification for the recipient. The text in the email message attempts to convince the recipient to open the attachment and view the details. However, the attachment contains a malicious .exe file that, when executed, attempts to infect the system with malicious code.

Email messages that are related to this threat (RuleID7464) may contain the following file:

> REPN47772JJE23.exe

The REPN47772JJE23.exe file has a file size of 348,672 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0x5375DE6A5E88E3315A90758E1D1F5AF1

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

> Message Body:

7 October 2013
This is an automatically generated email by the Natwest Bank online payments Service.
The details of the payment are attached to the letter.

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-October-16 15:17 GMT
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