alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Fake Anti-Pegasus AV CnC Exfil"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/connect?hwid="; fast_pattern; content:"&os="; distance:0; content:"&bits=x"; distance:0; content:"&av="; distance:0; http.header_names; content:!"Referer"; reference:url,blog.talosintelligence.com/2021/09/fakeantipegasusamnesty.html; classtype:command-and-control; sid:2034083; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_10_01, deployment Perimeter, malware_family Win32_Fake, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_03_09;)