alert dns $HOME_NET any -> any any (msg:"ET MALWARE OSX/Keydnap DNS Query to CnC"; dns.query; content:"g5wcesdfjzne7255.onion.to"; startswith; nocase; endswith; fast_pattern; reference:url,welivesecurity.com/2016/07/06/new-osxkeydnap-malware-hungry-credentials; classtype:command-and-control; sid:2022950; rev:6; metadata:affected_product Mac_OSX, attack_target Client_Endpoint, created_at 2016_07_06, deployment Perimeter, malware_family OSX_Keydnap, performance_impact Low, confidence Medium, signature_severity Major, tag TROJAN_OSX_Keydnap, updated_at 2024_04_13;)