alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE [eSentire] Remcos RAT Checkin 24"; flow:established,to_server; content:"|e8 ee 51 c7 05 29 cd 17 31 7b fd|"; depth:11; fast_pattern; content:"|55 47|"; distance:2; within:2; threshold:type limit, seconds 30, count 1, track by_src; reference:md5,98202283d7752779abd092665e80af71; classtype:command-and-control; sid:2025921; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, created_at 2018_07_31, malware_family Remcos, confidence High, signature_severity Major, updated_at 2020_11_06;)