alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET WEB_CLIENT Fake Java Installer Landing Page Oct 21";
flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/download.php?id=";
content:"&sid="; distance:0;
content:"&name=Java|20|Runtime|20|Environment|20|"; distance:0; fast_pattern;
pcre:"/^\/[0-9]+\/download\.php\?id=/";
pcre:"/&name=[a-z0-9\x20]+$/i";
reference:url,heimdalsecurity.com/blog/security-alert-blackhat-seo-campaign-passes-around-malware-to-unsuspecting-users;
classtype:trojan-activity;
sid:2021991; rev:4;
metadata:created_at 2015_10_21, signature_severity Major, updated_at 2020_12_10;
)