alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE W32/Rovnix Downloading Config File From CnC"; flow:established,to_server; http.method; content:"GET"; nocase; http.uri; content:"/config.php?"; fast_pattern; content:"user="; content:"version="; content:"&server="; content:"&crc="; pcre:"/user=[a-f0-9]{32}&/i"; reference:url,blog.eset.com/2012/02/22/rovnix-reloaded-new-step-of-evolution; classtype:command-and-control; sid:2014276; rev:5; metadata:created_at 2012_02_24, signature_severity Major, updated_at 2024_03_17;)