alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Snap Bot Receiving Download Command"; flow:established,to_client; file.data; content:"|7c|dlexec|7c|"; fast_pattern; nocase; distance:1; within:12; content:"|7c|"; distance:0; content:"|7c|"; distance:0; content:"|7c|"; distance:0; pcre:"/^\d+\x7cdlexec\x7c([^\x7c]+\x7c){3}[^\x7c]+$/mi"; reference:md5,a45a1ccf6842b032b7f2ef2f2255c81c; reference:md5,e070ce714e343052d19a7e3213ee2a9a; reference:url,ddanchev.blogspot.com/2011/05/peek-inside-new-ddos-bot-snap.html; classtype:trojan-activity; sid:2014732; rev:6; metadata:created_at 2012_05_11, signature_severity Major, updated_at 2024_04_08;)