Versions (2)
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Rev: 1 • Dec 15, 2024, 12:00 PMET MALWARE [CIS] Gootloader C2 Activity - Windows Server 2016 - barefootinc.com[.]au
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE [CIS] Gootloader C2 Activity - Windows Server 2016 - barefootinc.com[.]au"; flow:established,to_server; ja3.hash; content:"ae76f123158d52fd84c2c313c0c724ac"; tls.sni; bsize:18; content:"barefootinc.com.au"; nocase; startswith; fast_pattern; threshold:type limit, track by_src, seconds 3600, count 1; classtype:domain-c2; sid:2058287; rev:1; metadata:affected_product Windows_Server_2016, attack_target Client_Endpoint, created_at 2024_12_15, deployment Perimeter, malware_family GootLoader, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_12_15, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol; target:dest_ip;)
Dec 15, 2024, 12:00 PM
Dec 15, 2024, 12:00 PM
Dec 16, 2024, 10:34 PM
Jul 7, 2025, 9:34 PM
rules/emerging-malware.rules