Cisco Security has detected significant activity related to spam e-mail messages that claim to contain a company report for 2013 for the recipient. The text in the e-mail message attempts to persuade the recipient to open the attachment for 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 (RuleID5179) may contain the following files:
2013 Company Report.zip
file in the 2013 Company Report.zip
attachment has a file size of 106,496 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0x04654A7D793D59D82AC672B430912B5C
The following text is a sample of the e-mail message that is associated with this threat outbreak:
Subject: FW: Company 2013 Report
Signature: Digitally signed by firstname.lastname@example.org
File Validity: 01/31/2013
Company : http://finaledgedev.com
File Format: Office - Excel
Internal Name: Company Report
Legal Copyright: + Microsoft Corporation. All rights reserved.
Original Filename: 2013 Report.xls
********** Confidentiality Notice **********.
This e-mail and any file(s) transmitted with it, is intended for the exclusive use by the person(s) mentioned above as recipient(s).
This e-mail may contain confidential information and/or information protected by intellectual property rights or other rights. If you
are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution, copying, or action taken
in relation to the contents of and attachments to this e-mail is strictly prohibited and may be unlawful. If you have received this
e-mail in error, please notify the sender and delete the original and any copies of this e-mail and any printouts immediately from
your system and destroy all copies of it.
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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