alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE SuperKillerX Checkin Activity"; flow:established,to_server; dsize:20; content:"|1c 70 b6 f8 00 00 00 00 14 00 00 00|"; offset:4; depth:12; fast_pattern; reference:md5,081483cb25a69cd5b4de2368a4e67910; reference:md5,83b851067e1331a81e35b29c8a1ff151; classtype:command-and-control; sid:2030478; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_07_07, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, updated_at 2020_07_07;)