alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE TinyNuke VNC Checkin M2"; flow:established,to_server; dsize:10; content:"AVE_MARIA|00|"; fast_pattern; reference:url,asec.ahnlab.com/en/27346/; classtype:trojan-activity; sid:2035094; rev:1; metadata:attack_target Client_Endpoint, created_at 2022_02_04, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_02_04;)