alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE JS/WSF Downloader Dec 08 2016 M2"; flow:from_server,established; file_data; content:"|76 7e 72 20 7e 20 3d 20 22 22 3b 20 7e 20 2b 3d|"; within:17; content:"0."; distance:0; pcre:"/^\d+[\x22\x27]/R"; content:"|27 3b 20 7e 20 2b 3d 20 27|"; within:500; content:"|27 3b 20 7e 20 2b 3d 20 27|"; within:500; classtype:trojan-activity; sid:2023598; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2016_12_09, deployment Perimeter, malware_family Trojan_Kwampirs, performance_impact Low, confidence High, signature_severity Major, updated_at 2020_08_20;)