Cisco Security Intelligence Operations has detected significant activity related to spam e-mail messages that claim to contain a Chase account security update notification for the recipient. The text in the e-mail message attempts to convince the recipient to open the link to view and download the attachment to update account information. However, the link contains a malicious .scr file that, when executed, attempts to infect the system with malicious code.
E-mail messages that are related to this threat (RuleID4281) may contain the following file:
The Chase_Html.scr file has a file size of 454,393 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0xD598BC977C941D22D877713B5F2936E6
The following text is a sample of the e-mail message that is associated with this threat outbreak:
Subject: Chase Security Update
Please click here to view and download the attachment to update your chase account today.
2012 JPMorgan Chase & Co
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.
Cisco Security Intelligence Operations
Cisco Threat Operations Center
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