alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET ACTIVEX AVTECH Software ActiveX _DownloadPBClose Method Buffer Overflow Attempt"; flow:established,to_client; content:"<OBJECT "; nocase; content:"classid"; nocase; distance:0; content:"clsid"; nocase; distance:0; content:"8214B72E-B0CD-466E-A44D-1D54D926038D"; nocase; distance:0; content:"_DownloadPBClose"; nocase; reference:url,zeroscience.mk/en/vulnerabilities/ZSL-2010-4934.php; reference:url,exploit-db.com/exploits/12294; classtype:attempted-user; sid:2011204; rev:4; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2010_07_30, deployment Perimeter, confidence High, signature_severity Major, tag ActiveX, updated_at 2019_09_27;)