Rule History

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Maldoc Retrieving Remote Template (GET)"; flow:established,to_server; http.method; content:"GET"; http.uri; content:".docx"; endswith; fast_pattern; http.host; pcre:"/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/"; http.user_agent; content:"|3b 20|ms-office|3b 20|"; http.header_names; content:!"Referer"; reference:url,twitter.com/h2jazi/status/1469399194435735553; reference:md5,9127505386ade0774a1671e146e40ed7; classtype:trojan-activity; sid:2034679; rev:1; metadata:attack_target Client_Endpoint, created_at 2021_12_13, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_12_13;)