alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE CSharp SMB Scanner Assembly in PowerShell Inbound M1"; flow:established,to_client; http.stat_code; content:"200"; file.data; content:"=|20|ReadSmbResponse|28|"; content:"|20|==|20|0x72|20|&&|20|"; within:400; fast_pattern; content:"|20|==|20|00"; within:400; reference:md5,e5a9c413812b5217ef0da962668e9651; classtype:trojan-activity; sid:2027336; rev:5; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, created_at 2019_05_08, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_03_07;)