alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET ADWARE_PUP W32/Safekeeper.Adware CnC Beacon"; flow:established,to_server; http.uri; content:"/app_version/solution/cfg/exn.php?pid="; fast_pattern; http.user_agent; content:".dll"; endswith; reference:md5,9a1c669203b5e9ebb68e2c2cfc964daa; classtype:pup-activity; sid:2018099; rev:4; metadata:attack_target Client_Endpoint, created_at 2014_02_10, deployment Perimeter, signature_severity Major, tag c2, updated_at 2024_03_02, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)