alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Observed Malicious SSL Cert (Android/FakeAdBlocker CnC)"; flow:from_server,established; tls.cert_subject; content:"CN=ssedonthep.biz"; nocase; fast_pattern; endswith; reference:url,www.welivesecurity.com/2021/07/20/url-shortener-services-android-malware-banking-sms-trojans/; classtype:domain-c2; sid:2033375; rev:2; metadata:affected_product Android, attack_target Client_and_Server, created_at 2021_07_21, deployment Perimeter, former_category MOBILE_MALWARE, performance_impact Low, confidence High, signature_severity Major, tag SSL_Malicious_Cert, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_07_04, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)