Threat Outbreak Alert RuleID20194: Email Messages Distributing Malicious Software on December 20, 2015


Medium Alert ID: 42798 First Published: 2015 December 21 15:26 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 (RuleID20194) may contain the following files: **Name** | **Size in Bytes** | **MD5 Checksum** ---|---|--- PDF9849848489498FB1E81F.7z / PDF9849848489498FB1E81F.com | 274,432 | 0x753BC27B22EDE95B80ADEBA1751A8F5E The following text is a sample of the email message that is associated with this threat outbreak: > Subject:**Re: Order No 4531** Message body: **Good Day, Based on our last inquiry we have confirmed our order as attached in this mail. Attached is our signed new purchase order. kindly check attached and issue us proforma invoice to proceed with advance payment as we need this orders. Most importantly, we will need your guarantee of speedy delivery of this order and as we requested on our previous email, our representative will visit your company/factory for inspection before shipment and final payment. Please download to see product specification and contract agreement form Note: Please confirm if the prices of the attached product are still the same before proceeding. We hope to hear from you soon.. Best regards,** 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-December-21 15:26 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