alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE CSharp SMB Scanner Assembly in PowerShell Inbound M2"; flow:established,from_server; http.stat_code; content:"200"; file.data; content:"|20|=|20|new|20|byte|5b 5d|"; content:"0xff,0x53,0x4d,0x42"; within:300; fast_pattern; content:"0x01,0x28"; distance:0; content:"0x02,0x4c,0x41,0x4e"; reference:md5,e5a9c413812b5217ef0da962668e9651; classtype:trojan-activity; sid:2027337; rev:3; 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, tag PowerShell, tag T1086, updated_at 2020_11_18;)