alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"ET WEB_CLIENT Microsoft Windows MPEG Layer-3 Audio Decoder Buffer Overflow"; flow:established,to_client; flowbits:isset,ET.AVI.RIFF.Chunk; content:"|73 74 72 66|"; content:"|93 00 00 00|"; distance:8; within:4; reference:cve,2010-0480; reference:url,www.exploit-db.com/moaub-5-microsoft-mpeg-layer-3-audio-stack-based-overflow/; reference:url,www.exploit-db.com/exploits/14895/; reference:url,www.microsoft.com/technet/security/Bulletin/MS10-026.mspx; classtype:attempted-user; sid:2012143; rev:3; metadata:affected_product Web_Browsers, affected_product Web_Browser_Plugins, attack_target Client_Endpoint, created_at 2011_01_05, cve CVE_2010_0480, deployment Perimeter, confidence High, signature_severity Major, tag Web_Client_Attacks, updated_at 2019_07_26;)