alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET CURRENT_EVENTS Evil JS iframe Embedded In GIF"; flow:established,from_server; file_data; content:"GIF89a="; nocase; within:8; content:"|3b|url="; nocase; distance:0; content:"iframe"; nocase; distance:0; content:"|3b|tail="; nocase; distance:0; fast_pattern; classtype:trojan-activity; sid:2021156; rev:2; metadata:created_at 2015_05_28, signature_severity Minor, updated_at 2019_07_26;)