Rule History

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_CLIENT PDF With Unescape Method Defined Possible Hostile Obfuscation Attempt"; flow:established,to_client; content:"PDF-"; depth:300; content:"unescape|28|"; nocase; distance:0; reference:url,isc.sans.org/diary.html?storyid=7903; reference:url,isc.sans.org/diary.html?storyid=7906; classtype:bad-unknown; sid:2010881; rev:6; metadata:affected_product Web_Browsers, affected_product Web_Browser_Plugins, attack_target Client_Endpoint, created_at 2010_09_29, deployment Perimeter, confidence Medium, signature_severity Major, tag Web_Client_Attacks, updated_at 2019_07_26;)