alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE RAMNIT.A M1"; flow:established,from_server; file_data; content:"|43 72 65 61 74 65 54 65 78 74 46 69 6c 65 28 44 72 6f 70 50 61 74 68|"; nocase; content:"|57 53 48 73 68 65 6c 6c 2e 52 75 6e 20 44 72 6f 70 50 61 74 68 2c 20 30|"; nocase; reference:url,www.microsoft.com/security/portal/threat/Encyclopedia/Entry.aspx?Name=Virus%3AWin32%2FRamnit.A; classtype:trojan-activity; sid:2023028; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2016_08_09, deployment Perimeter, malware_family Ramnit, performance_impact Moderate, confidence High, signature_severity Major, updated_at 2019_07_26;)