Rule History

alert tcp $EXTERNAL_NET any -> $HOME_NET 25 (msg:"ET EXPLOIT MS05-021 Exchange Link State - Possible Attack (1)"; flow: to_server,established; content:"X-LINK2STATE"; nocase; reference:cve,CAN-2005-0560; reference:url,isc.sans.org/diary.php?date=2005-04-12; reference:url,www.microsoft.com/technet/security/bulletin/MS05-021.mspx; classtype:misc-activity; sid:2001848; rev:7; metadata:created_at 2010_07_30, confidence Medium, signature_severity Major, updated_at 2019_07_26;)