Threat Outbreak Alert RuleID24163: Email Messages Distributing Malicious Software on August 8, 2016

Threat Outbreak Alert: Email Messages Distributing Malicious Software on August 8, 2016. Cisco security detected significant activity related to spam email messages distributing malicious software. Email may contain a file named DOCUMENT REFERENCE.ace with MD5 Checksum 0xC57B4FE2BF3CF8F4B980648348EF7912. The sample email message claims the recipient's mailbox has been blacklisted and prompts them to verify their email account within 12 hours to avoid suspension