Rule History

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed Trox Stealer Related Domain (debt-collection-experts .com) in TLS SNI"; flow:established,to_server; tls.sni; dotprefix; content:".debt-collection-experts.com"; endswith; fast_pattern; reference:url,sublime.security/blog/trox-stealer-a-deep-dive-into-a-new-malware-as-a-service-maas-attack-campaign/; classtype:trojan-activity; sid:2061459; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2025_04_11, deployment Perimeter, malware_family Trox_Stealer, performance_impact Low, confidence High, signature_severity Major, updated_at 2025_04_11, mitre_tactic_id TA0037, mitre_tactic_name Command_And_Control, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)