alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Orchard Botnet Activity"; flow:established,to_server; content:"|5b 2a 5d 5b 6f 2e 72 2e 63 2e 68 2e 61 2e 72 2e 64 5d|"; startswith; fast_pattern; content:"|5b 6f 2e 72 2e 63 2e 68 2e 61 2e 72 2e 64 5d|"; distance:0; reference:md5,3fbbded0736a96cbe27fe939dc12cc35; reference:url,blog.netlab.360.com/orchard-dga/; classtype:command-and-control; sid:2038728; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_09_07, deployment Perimeter, malware_family Win32_Orchard, performance_impact Low, confidence High, signature_severity Major, updated_at 2022_09_02;)