alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Possible Maldoc Downloader Aug 18 2017"; flow:established,to_server; http.uri; content:"/s.php?id="; depth:10; pcre:"/^\/s\.php\?id=[a-z0-9]{2,6}$/"; http.header_names; content:!"User-Agent|0d 0a|"; content:!"Accept|0d 0a|"; content:!"Cookie|0d 0a|"; reference:md5,5285f1adfc0013fa86218a7d76c0016d; classtype:trojan-activity; sid:2024600; rev:4; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_08_21, deployment Perimeter, malware_family Maldoc, performance_impact Low, confidence Medium, signature_severity Major, tag MalDoc, updated_at 2020_11_05;)