alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Quant Loader Download Request"; flow:to_server,established; threshold:type limit, track by_src, count 1, seconds 30; http.method; content:"GET"; http.uri; content:".php?id="; fast_pattern; content:"&c="; distance:0; nocase; content:"&mk="; distance:0; nocase; content:"&il="; distance:0; nocase; content:"&vr="; distance:0; nocase; content:"&bt="; distance:0; nocase; http.header_names; content:!"Referer"; content:!"Cookie|0d 0a|"; reference:md5,23646295E98BD8FA022299374E4F76E0; classtype:trojan-activity; sid:2024452; rev:6; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_07_10, deployment Perimeter, performance_impact Significant, confidence High, signature_severity Major, updated_at 2024_04_29;)