Cisco Security has detected significant activity related to spam e-mail messages that claim to contain a wire transfer notification for the recipient. The text in the e-mail message attempts to convince the recipient to open the attachment and view a copy of a receipt. However, the .zip attachment contains a malicious .exe file that, when executed, attempts to infect the system with malicious code.
E-mail messages that are related to this threat (RuleID5563 and RuleID5563KVR) may contain the following files:
Payment slip ID-GF-37840.zip
Payment slip ID-GF-37840.exe
Payment notification id ED-4950.zip
Payment notification id ED-4950.exe
The Payment slip ID-GF-37840.exe file in the Payment slip ID-GF-37840.zip attachment has a file size of 72,704 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0xDA86A2A45A60F1DD659CD1D942207ACD
The Payment notification id ED-4950.exe file size in the Payment notification id ED-4950.zip is not available. The MD5 checksum is also not available.
The following text is a sample of the e-mail message that is associated with this threat outbreak:
From: "Bank of America"
Date: Sun, 17 Mar 2013 12:43:33 -0500WIRE transaction is completed. $4597 has been successfully transferred. If the transaction was made by mistake please contact our customer serviceReceipt on payment is attached.*** This is an automatically generated email, please do not reply ***
Cisco Security analysts examine real-world e-mail 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 e-mail 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. E-mail 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 e-mail and hostile web URLs from being passed to the end user.
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