Threat Outbreak Alert RuleID19150: Email Messages Distributing Malicious Software on November 4, 2015


Medium Alert ID: 41910 First Published: 2015 November 3 20:21 GMT Last Updated: 2015 November 4 20:34 GMT Version: 2 ## Summary * Cisco Security has detected significant activity related to spam email messages distributing malicious software. Email messages that are related to this threat (RuleID19150) and (RuleID19150KVR) may contain the following files: **Name** | **Size in Bytes** | **MD5 Checksum** ---|---|--- pu.exe | 203,264 | 0xCD445E52EB7D2CA7359A8513157DD0A9 wa1.exe | 60,416 | 0xE8734DDB8A0E1E237D73249AE6737BB3 The following text is a sample of the email message that is associated with this threat outbreak: > Subject: **E-Ticket Confirmation** Message Body: **Ticket Issued: Nov 02, 2015** **Thank you for choosing American Airlines / American Eagle, a member of the oneworld Alliance.??Below are your itinerary and receipt for the ticket(s) purchased.??Please print and retain this document for use throughout your trip.** **For faster check-in??at the airport, scan the barcode below at any AA Self-Service machine.** **You must present a government-issued photo ID and either your boarding pass or a priority verification card at the security screening checkpoint.** **You can now Manage Your Reservation on aa.com, where you can check in and purchase additional items to customize your journey. A variety of seating options are also available for purchase to enhance your travel with features such as convenient front of cabin location, extra legroom and early boarding.** **Print your ticket from attach.** **As American and US Airways merge, many changes are taking place at our airport locations. Visit Find Your Way to assist with your journey.** Or > Subject:** Important - Internal Only** Message Body: **File Validity: 03/11/2015** **File Format: Microsoft Word** **Name: Internal Only** **Original Filename: Internal_Only.doc** 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 ---|---|---|--- 2 | Cisco Security has detected significant activity on November 4, 2015. | | 2015-November-04 20:34 GMT 1 | Cisco Security has detected significant activity on November 3, 2015. | | 2015-November-03 20:21 GMT 1 | Initial Release | | 2015-November-03 20:21 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