alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Variant.Strictor Dropper"; flow:established,to_server; http.method; content:"GET"; http.uri; content:".php"; content:"os="; content:"&osbit="; content:"&antiv="; http.user_agent; content:"Access"; startswith; fast_pattern; reference:md5,909b91071c60fc68c27789d912ccf68a; classtype:trojan-activity; sid:2018964; rev:8; metadata:created_at 2014_08_19, signature_severity Major, updated_at 2024_04_12;)