alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE MSIL/Modi RAT CnC Command Inbound (in)"; flow:established,from_server; dsize:<50; content:"in|7c 7c|Screen_Numbers|7c 7c|"; nocase; depth:20; fast_pattern; content:"|7c|"; isdataat:!1,relative; reference:md5,ca075cb808eb6f69ab5ea82d7acb3f39; classtype:command-and-control; sid:2030141; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_05_11, deployment Perimeter, deprecation_reason Age, malware_family ModiRAT, confidence High, signature_severity Major, updated_at 2024_05_06, reviewed_at 2024_05_06;)