Threat Outbreak Alert: Fake Adobe License Key Attachment Email Messages on December 19, 2013


Medium Alert ID: 32241 First Published: 2013 December 19 21:37 GMT Version: 1 ## Summary * Cisco Security has detected significant activity related to spam email messages that claim to contain an Adobe license key for the recipient. The text in the email message attempts to convince the recipient to open the attachment to obtain the license key. However, the _.zip_ attachment contains a malicious _.exe_ file that, when executed, attempts to infect the system with malicious code. Email messages that are related to this threat (RuleID8271) may contain the following files: > _License_Key_Document_Adobe_Systems_Incorporated.exe_ _License_Key_OR6478.zip_ The _License_Key_Document_Adobe_Systems_Incorporated.exe_ file in the _License_Key_OR6478.zip_ attachment has a file size of 209,920 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0x30AAE526F5C4B474CC5E81C12FD73986 The following text is a sample of the email message that is associated with this threat outbreak: > Subject: **Your Adobe License key here** Message Body: **Hello. Thank you for buying Contribute CS5 software software. Your Adobe License key is in attached document below. Adobe Systems Incorporated.** Cisco Security analysts examine real-world email 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 email 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. Email 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 email and hostile web URLs from being passed to the end user. **Related Links** [Cisco Security](<http://www.cisco.com/security>) [Cisco SenderBase Security Network](<http://www.senderbase.org/>) ## Revision History * Version | Description | Section | Date ---|---|---|--- 1 | Initial Release | | 2013-December-19 21:37 GMT Show Less * * * ## Legal Disclaimer * THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE ALERTS AT ANY TIME. A standalone copy or paraphrase of the text of this document that omits the distribution URL is an uncontrolled copy and may lack important information or contain factual errors. The information in this document is intended for end users of Cisco products