Cisco Security Intelligence Operations has detected significant activity related to spam e-mail messages that claim to contain blocked credit card details for the recipient. The text in the e-mail message attempts to convince the recipient to open the attachment and view the details. 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 (RuleID4302) may contain the following files:
VisaCard-N458857.zip
VISA_ID48832743.exe
VisaCard-N49146495040.zip
Visa_Invoice_N8838284.exe
The VISA_ID48832743.exe file in the VisaCard-N458857.zip attachment has a file size of 93,696 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0x9B626C63480A0B150123022B8F71DB79
The VisaCard-N49146495040.zip file in the Visa_Invoice_N8838284.exe attachment has a file size of 98,304 bytes. The MD5 checksum is the following string: 0x515F2E4584CAC1EEDF3CA1AF08A8D9BE
The following text is a sample of the e-mail message that is associated with this threat outbreak:
Subject: Your credit card has been blocked
Message Body:
Dear User,
WARNING: Your credit card is blocked!
With your credit card was removed $ 74,5
Possibly illegal operation!
More details in the attached file.
Instantly contact your bank .
Best Wishes, VISA Team.
Cisco Security Intelligence Operations 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 IronPort systems to protect customers. This report will be updated if there are significant changes or if the risk to end users increases.
Cisco IronPort Virus Outbreak Filters 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 IronPort web security appliances will not be impacted by these attacks. Cisco IronPort 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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Cisco Security Intelligence Operations
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