alert smb any any -> $HOME_NET any (msg:"ET EXPLOIT Possible ETERNALCHAMPION MS17-010 Sync Request (set)"; flow:to_server,established; content:"|ff|SMB|25 00 00 00 00 18 03 c0 00 00 00 00 00 00 00 00 00 00 00 00|"; offset:4; depth:24; content:"|00 00 00 00 ff ff ff ff 00 00|"; distance:17; within:10; content:"|5c 00 50 00 49 00 50 00 45 00 5c 00 4c 00 41 00 4e 00 4d 00 41 00 4e 00 00 00|"; distance:13; within:26; content:"|82 00|zb12g12DWrLehig24"; within:19; fast_pattern; flowbits:set,ET.ETERNALCHAMPIONsync; flowbits:noalert; classtype:trojan-activity; sid:2024212; rev:2; metadata:attack_target SMB_Server, created_at 2017_04_17, deployment Internal, confidence Medium, signature_severity Critical, updated_at 2019_07_26;)