Cisco Security has detected significant activity related to spam e-mail messages that claim to contain a document 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 (RuleID5581) may contain the following files:
The Service Commentary.exe
file in the Service Commentary.zip
attachment has a file size of 103,936 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0x8BD91810ACF5ED3B5610DAAA1CD99F43
The following text is a sample of the e-mail message that is associated with this threat outbreak:
Please refer to the details below if you are having problems reading the attached file.Please do not contact your Treasury Centre for technical issues - these should be routed to RBS FM support.The attached file is in zip format; first you have to unzip it (self-extracting archive, Adobe PDF) and then it can be viewed in Adobe Acrobat Reader 3.0 or above. If you do not have a copy of the software please contact your technical support department.ALL SUMMARIES OF RESEARCH REPORTS INCLUDED IN THIS PAGE CONSTITUTE PART OF THE RELEVANT REPORT WHICH IS ATTACHED AND ARE THEREFORE COVERED BY THAT DOCUMENT'S DISCLAIMER AND DISTRIBUTION RESTRICTIONS.
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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