alert tcp $EXTERNAL_NET any -> $HOME_NET 20222 (msg:"ET SCADA CitectSCADA ODBC Overflow Attempt"; flow:established,to_server; dsize:4; byte_test:4,>,399,0; reference:cve,2008-2639; reference:url,www.digitalbond.com/index.php/2008/09/08/ids-signature-for-citect-vuln/; reference:url,digitalbond.com/tools/quickdraw/vulnerability-rules; classtype:attempted-user; sid:2008542; rev:8; metadata:created_at 2010_07_30, cve CVE_2008_2639, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)