alert tcp $HOME_NET any -> $EXTERNAL_NET 3460 (msg:"ET RETIRED PoisonIvy Key Exchange with CnC Init"; flow:established,to_server; dsize:256; flowbits:set,ET.Poison1; flowbits:noalert; classtype:command-and-control; sid:2008380; rev:4; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2010_07_30, deployment Perimeter, former_category MALWARE, malware_family PoisonIvy, signature_severity Critical, tag PoisonIvy, updated_at 2024_12_05;)