alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE zgRAT / PureLogs Stealer CnC ping Request"; flow:established,to_server; http.method; content:"GET"; http.uri; bsize:5; content:"/ping"; fast_pattern; http.header_names; content:!"|0d 0a|user-agent|0d 0a|"; nocase; content:"|0d 0a|host|0d 0a 0d 0a|"; nocase; http.host; content:!"ping.pagekite"; threshold:type limit,track by_src,count 5,seconds 300; reference:md5,f059e9bfc5b9569ac5980b45e3a215b5; classtype:trojan-activity; sid:2067921; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2026_02_25, deployment Perimeter, deployment SSLDecrypt, malware_family Stealer, malware_family zgRAT, performance_impact Moderate, confidence High, signature_severity Major, updated_at 2026_02_26, mitre_tactic_id TA0009, mitre_tactic_name Collection, mitre_technique_id T1005, mitre_technique_name Data_from_local_system; target:src_ip;)