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Rev: 2 • Jan 31, 2020, 12:00 PMET MALWARE Possible Winnti TLS Certificate Observed
alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Possible Winnti TLS Certificate Observed"; flow:established,to_client; tls.cert_subject; content:".dnslookup.services"; nocase; isdataat:!1,relative; reference:url,www.welivesecurity.com/2020/01/31/winnti-group-targeting-universities-hong-kong/; classtype:targeted-activity; sid:2029343; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_01_31, deployment Perimeter, malware_family Winnti, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_01_31;)
Jan 31, 2020, 12:00 PM
Jan 31, 2020, 12:00 PM
Sep 21, 2024, 3:00 AM
Sep 22, 2025, 9:34 PM
rules/emerging-malware.rules