alert tcp $HOME_NET any -> $EXTERNAL_NET 5222 (msg:"ET MALWARE W32/Jabberbot.A Trednet XMPP CnC Beacon"; flow:established,to_server; content:"trednet@jabber.ru"; fast_pattern; reference:url,blog.eset.com/2013/01/30/walking-through-win32jabberbot-a-instant-messaging-cc; classtype:command-and-control; sid:2016331; rev:2; metadata:attack_target Client_Endpoint, created_at 2013_02_01, deployment Perimeter, signature_severity Major, tag c2, updated_at 2019_10_08, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)