alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE [PTsecurity] Remcos RAT Checkin 85"; flow:established,to_server; content:"|c4 e2 a1 27 66 76 0b 6d bf 25 73|"; depth:11; reference:md5,c00606ac4ed2e1e8a5f503051c555e72; classtype:command-and-control; sid:2026852; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_01_24, deployment Perimeter, confidence High, signature_severity Major, tag Remcos, updated_at 2019_07_26;)