Rule History

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET ADWARE_PUP Observed Bandwidth Sharing Tool Domain (earn .fm in TLS SNI)"; flow:established,to_server; tls.sni; dotprefix; content:".earn.fm"; endswith; fast_pattern; reference:url,trendmicro.com/en_us/research/23/b/hijacking-your-bandwidth-how-proxyware-apps-open-you-up-to-risk.html; classtype:pup-activity; sid:2067477; rev:1; metadata:attack_target Client_Endpoint, created_at 2026_02_11, deployment Perimeter, malware_family PUP, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, tag proxyware, updated_at 2026_02_11;)