alert tcp $EXTERNAL_NET any -> $HOME_NET 912 (msg:"ET SCADA RealWin SCADA System Buffer Overflow"; flow:established,to_server; content:"|64 12 54 6a|"; depth:4; content:"|00 00 00 f4 1f 00 00|"; distance:1; within:7; isdataat:220; content:!"|0a|"; distance:0; pcre:"/\x64\x12\x54\x6a[\x20\x10\x02]\x00\x00\x00\xf4\x1f\x00\x00/"; reference:url,www.exploit-db.com/exploits/15337/; classtype:attempted-dos; sid:2011976; rev:1; metadata:created_at 2010_11_24, confidence High, signature_severity Major, updated_at 2019_07_26;)