alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"ET RETIRED PoisonIvy Keepalive to CnC (Operation SMN Variant)"; flow:established,to_server; dsize:48; content:"|b6 8b ac d3 d7 e0 e7 36 f0 b5 63 65 1e 1a 31 ae|"; offset:16; depth:16; reference:md5,184a9d13616702154fb10ff9c5d67041; classtype:command-and-control; sid:2019589; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2014_10_29, deployment Perimeter, former_category MALWARE, malware_family PoisonIvy, confidence Medium, signature_severity Critical, tag PoisonIvy, updated_at 2024_12_05;)