alert smb $HOME_NET any -> any any (msg:"ET EXPLOIT ETERNALBLUE Probe Vulnerable System Response MS17-010"; flow:from_server,established; content:"|ff|SMB|25 05 02 00 c0 98 01|"; offset:4; depth:11; content:"|00 00 00 00 00 00 00 00 00 00|"; distance:3; within:10; content:"|00 00 00|"; distance:8; within:3; endswith; threshold:type limit, track by_src, count 1, seconds 30; reference:url,github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/scanner/smb/smb_ms17_010.rb; classtype:trojan-activity; sid:2025650; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_07_11, deployment Internal, confidence Medium, signature_severity Major, tag Metasploit, tag ETERNALBLUE, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_09_28;)