alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Maldoc Retrieving Remote Template (GET)"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/latest/"; startswith; fast_pattern; pcre:"/^(?:update|designs)$/R"; http.user_agent; content:"|3b 20|ms-office|3b 20|"; http.header_names; content:!"Referer"; reference:md5,447e3c337f206ff59a727223bddd13ad; reference:md5,2bac793cfaf071a37366d3331cc99518; reference:url,twitter.com/ShadowChasing1/status/1480493639545470976; classtype:trojan-activity; sid:2034875; rev:2; metadata:attack_target Client_Endpoint, created_at 2022_01_10, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_02_23;)