alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Kimsuky Related Host Data Exfil"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/wp-data/?m="; fast_pattern; startswith; pcre:"/&p=[a-z0-9]{12}(?:&v=[a-z0-9\.-]{1,24})?$/Ri"; http.header_names; content:!"Referer|0d 0a|"; reference:url,app.any.run/tasks/103fc941-f115-4731-b6fc-f56a82ed6813/; classtype:trojan-activity; sid:2029583; rev:2; metadata:attack_target Client_Endpoint, created_at 2020_03_05, deployment Perimeter, malware_family Kimsuky, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_03_05;)