alert http any any -> $HOME_NET any (msg:"ET ATTACK_RESPONSE Windows SCM DLL Hijack Command Inbound via HTTP M2"; flow:established,from_server; http.stat_code; content:"200"; file.data; content:"stop|20|SessionEnv"; content:"copy|20|TSMSISrv.dll"; content:"|5c|Windows|5c|System32|5c|TSMSISrv.dll"; distance:0; fast_pattern; reference:url,posts.specterops.io/lateral-movement-scm-and-dll-hijacking-primer-d2f61e8ab992; classtype:attempted-user; sid:2027233; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2019_04_21, deployment Perimeter, performance_impact Low, signature_severity Major, tag T1038, updated_at 2020_08_28;)