alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE W32/Iyus.H Initial CnC Beacon"; flow:established,to_server; http.uri; content:"/run1/pr.php?p1="; fast_pattern; content:"&p2="; content:"&id="; reference:url,www.sophos.com/en-us/threat-center/threat-analyses/viruses-and-spyware/Troj~Iyus-H/detailed-analysis.aspx; classtype:command-and-control; sid:2016206; rev:5; metadata:attack_target Client_Endpoint, created_at 2013_01_15, deployment Perimeter, signature_severity Major, tag c2, updated_at 2020_09_18, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)