alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"ET RETIRED PoisonIvy.Eu5 Keepalive to CnC"; flow:established,to_server; content:"|13 cb df 56 6f f3 20 08 c2 f1 ab d3 6f 75 56 a9|"; offset:16; depth:16; dsize:48; reference:md5,d8edad03f5524369e60c69a7483f8365; classtype:command-and-control; sid:2014056; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2011_12_31, deployment Perimeter, former_category MALWARE, malware_family PoisonIvy, confidence Medium, signature_severity Critical, tag PoisonIvy, updated_at 2024_12_05;)