Threat Outbreak Alert RuleID15411: Email Messages Distributing Malicious Software on May 20, 2015


Medium Alert ID: 38936 First Published: 2015 May 20 19:13 GMT Version: 1 ## Summary * Cisco Security has detected significant activity related to spam email messages distributing malicious software. Email messages that are related to this threat (RuleID15411) may contain the following files: **Name** | **Size in Bytes** | **MD5 Checksum** ---|---|--- pdf_label0520.zip / pdf_label0520.pif | 29,184 | 0x60DC08AD05CC224BE003D11835F22CD5 The following text is a sample of the email message that is associated with this threat outbreak: > Subject: **Delivery failed for package #82449745** Message Body: **We could not deliver your package because your postal code is invalid. TRACKING # : 82449745 SHIPPING : PRIORITY DELIVERY : MISSED To pick up your package, please come to the nearest Post Office, with your photo ID and a printed copy of the delivery slip. Because your address was invalid, you will have to download and print the USPS slip from : hxxps://www.usps.com/tracking/slip.htm?package_id=82449745 Please note that Adobe PDF Reader must be present on your computer, in order to open the slip file. Copyright © 2015 USPS. All Rights Reserved.** Cisco security appliances can help protect customers during the critical period between the first exploit of a virus outbreak and the release of vendor antivirus signatures. Cisco Web Security Appliances help secure and control web and email traffic by offering layers of malware protection. Cisco security appliances are automatically updated to help 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 | | 2015-May-20 19:13 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