Threat Outbreak Alert RuleID31470: Email Messages Distributing Malicious Software on November 29, 2017


Medium Alert ID: 56083 First Published: 2017 November 29 17:50 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 (RuleID31470) may contain the following files: **Name** | **Size in Bytes** | **MD5 Checksum** ---|---|--- Nov2017_PO.pdf.arj / Nov2017_POpdf.exe | 648,000 | 0x30C70EE0968E966C3EA73ECEED3304D9 The following text is a sample of the email message that is associated with this threat outbreak: > Subject: **NEW ITEMS ON PURCHASE ORDER LIST** Message Body: **Good day,** **Kindly provide us price quotation for the attached requisition with** **lead items.** **Quote FOB prices and sample invoices to the address as below:** **Please confirm to us when the order will be ready, we are requested to** **submit offer to our client soonest.** **Tks & B.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. ## Revision History * Version | Description | Section | Date ---|---|---|--- 1 | Initial release to report significant activity detected by Cisco Security on November 29, 2017. | — | 2017-November-29 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