alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_CLIENT Iframe in Purported Image Download (gif) - Likely SQL Injection Attacks Related"; flow:established,from_server; content:"|0d 0a|content-type|3a| "; nocase; content:" image/gif"; nocase; within:30; content:"<iframe"; nocase; distance:0; pcre:"/content-type\x3a\s+image\/gif/i"; pcre:"/<iframe.*?src.*?>.*?<\/iframe>/im"; classtype:web-application-attack; sid:2008314; rev:8; metadata:affected_product Web_Browsers, affected_product Web_Server_Applications, affected_product Web_Browser_Plugins, attack_target Client_Endpoint, created_at 2010_07_30, deployment Perimeter, deployment Datacenter, confidence Medium, signature_severity Major, tag SQL_Injection, tag Web_Client_Attacks, updated_at 2020_08_20, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;)