Cisco Security has detected significant activity related to spam e-mail messages that claim to contain a billing statement for the recipient. The text in the e-mail message attempts to convince the recipient to open the attachment and view the statement. 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 (RuleID6172) may contain the following files:
statement id 293-545.zip
statement id 293-545.exe
The statement id 293-545.exe
file in the statement id 293-545.zip
attachment has a file size of 244,224 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0xA8A62AE14FA12F85692EF17B18FBEED9
The following text is a sample of the e-mail message that is associated with this threat outbreak:
Subject: Merchant Statement
Attached (xlsx|Exel file|document|file) is your Citibank Paymentech electronic Merchant Billing Statement.
If you need assistance, please (contact|message|call) your Account Executive or call Merchant Services at the telephone number listed on your statement.
PLEASE DO NOT RESPOND BY USING REPLY. This (email|mail) is sent from an unmonitored email address, and your response will not be received by Citibank Paymentech.
Citibank Paymentech will not be responsible for any liabilities that may result from or relate to any failure or delay caused by Citibank Paymentech's or the Merchant's email service or otherwise. Citibank Paymentech recommends that Merchants continue to monitor their statement information regularly.
Learn more about Citibank Paymentech Solutions, LLC payment processing services at Citibank.
THIS MESSAGE IS CONFIDENTIAL. This e-mail message and any attachments are proprietary and confidential information intended only for the use of the recipient(s) named above. If you are not the intended recipient, you may not print, distribute, or copy this message or any attachments. If you have received this communication in error, please notify the sender by return e-mail and delete this message and any attachments from your computer.
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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