alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/BlackShadow Activity (GET) M1"; flow:established,to_server; urilen:9; http.method; content:"POST"; http.uri; content:"/register"; http.request_body; content:"|26 61 ab 21 26 03 00 00|"; fast_pattern; reference:url,gov.il/he/pages/alert_1817; reference:md5,00ba1e1d154e18d1124d87934fae9f20; classtype:trojan-activity; sid:2057196; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_11_01, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Major, updated_at 2024_11_01;)