alert tcp $HOME_NET any -> $EXTERNAL_NET 8000:9000 (msg:"ET MALWARE Win32/RaaLoader CnC Activity"; flow:established,to_server; dsize:12; content:"|12 10 00 00 00 00 00 00 00 00 00 00|"; depth:12; fast_pattern; reference:md5,16b4b114f6ccfff008de265d535656a2; classtype:command-and-control; sid:2029731; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_03_24, deployment Perimeter, malware_family RaaLoader, confidence High, signature_severity Major, updated_at 2020_03_24;)