alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE ZenRAT Change Status Command"; flow:established,to_server; content:"|0a 51 00 00 00 00 00 00 00|"; startswith; fast_pattern; pcre:"/([\x00-\xff]\x00{7}){2}[\x00-\xff]{2}\x00{6}$/R"; reference:md5,6f809b1c82d9fb6cd277c6b645ecaf84; classtype:trojan-activity; sid:2047758; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2023_08_25, deployment Perimeter, malware_family ZenRAT, performance_impact Low, confidence High, signature_severity Major, updated_at 2023_08_25, reviewed_at 2023_08_25; target:src_ip;)