alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Common RAT Host Checkin (GET)"; flow:established,to_server; http.method; content:"GET"; http.uri; content:".php?id="; content:"&key="; pcre:"/^(?:[0-9]{10,12})$/R"; http.user_agent; content:"Mozilla|2f|5|2e|0|20 28|Windows|20|NT|3b 20|Windows|20|NT|20|"; startswith; content:"WindowsPowerShell/"; fast_pattern; http.header_names; content:"|0d 0a|User-Agent|0d 0a|Host|0d 0a|"; startswith; isdataat:!35,relative; content:!"Referer"; reference:url,twitter.com/reecdeep/status/1715053326859895210; reference:md5,6eb9f82c1b93fa4d6a79f2c06e65f83b; classtype:trojan-activity; sid:2048662; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_10_19, deployment Perimeter, malware_family RAT, confidence High, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_10_19, reviewed_at 2023_10_19;)