alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Arechclient2 Backdoor CnC Checkin"; flow:established,to_server; content:"|7b 22 54 79 70 65 22 3a 22 43 6f 6e 6e 65 63 74 69 6f 6e 54 79 70 65 22 2c 22 43 6f 6e 6e 65 63 74 69 6f 6e 54 79 70 65 22 3a 22 43 6c 69 65 6e 74 22 2c 22 53 65 73 73 69 6f 6e 49 44 22 3a 22|"; fast_pattern; depth:80; content:"|22 2c 22 42 6f 74 4e 61 6d 65 22 3a 22|"; distance:0; content:"|22 2c 22 42 6f 74 4f 53 22 3a 22|"; distance:0; reference:md5,4ccba79d95dfd7d87b43643058e1cdd0; classtype:command-and-control; sid:2029218; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_01_02, deployment Perimeter, confidence High, signature_severity Major, updated_at 2020_01_02;)