alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Dapato/Cleaman Checkin"; flow:established,to_server; http.method; content:"GET"; http.uri; content:".php?rnd="; fast_pattern; pcre:"/\?rnd=\d{5,7}$/"; http.header_names; content:!"|0d 0a|Accept|0d 0a|"; content:!"|0d 0a|User-Agent|0d 0a|"; reference:md5,45b3b6fcb666c93e305dba35832e1d42; reference:url,www.microsoft.com/security/portal/Threat/Encyclopedia/Entry.aspx?Name=Trojan%3AWin32%2FCleaman.G; classtype:command-and-control; sid:2014200; rev:6; metadata:created_at 2012_02_07, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_02_08;)