alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET ADWARE_PUP MultiPlug.J Checkin"; flow:established,to_server; urilen:>103; http.method; content:"GET"; http.uri; content:"/?q="; fast_pattern; depth:4; pcre:"/^\/(?:[A-Za-z]+\d?\/)?\?q=(?=[a-z0-9+/]*[A-Z])(?=[A-Z0-9+/]*[a-z])(?=[A-Za-z0-9+/\x25]*\d)[A-Za-z0-9+/\x25]{100}/"; http.uri.raw; content:"+"; http.host; content:!"map24.com"; content:!"aptrk.com"; http.header_names; content:"|0d 0a|Accept|0d 0a|User-Agent|0d 0a|Host|0d 0a 0d 0a|"; content:!"Referer|0d 0a|"; content:!"Accept-"; reference:md5,6b95ddc5238cc0576db7b206af13339e; classtype:pup-activity; sid:2023707; rev:4; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_01_09, deployment Perimeter, malware_family PUA, performance_impact Low, confidence High, signature_severity Minor, updated_at 2020_08_31;)