Versions (5)
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Rev: 1 • Nov 11, 2021, 12:00 PMET MALWARE Observed Malicious SSL/TLS Certificate (Jasper CnC)
alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Observed Malicious SSL/TLS Certificate (Jasper CnC)"; flow:from_server,established; tls.cert_subject; content:"CN=uaic.nl"; fast_pattern; reference:url,twitter.com/c_APT_ure/status/1458388621317246977; classtype:domain-c2; sid:2034429; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2021_11_11, deployment Perimeter, malware_family JasperLoader, performance_impact Low, confidence High, signature_severity Major, tag SSL_Malicious_Cert, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_11_11, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)
Nov 11, 2021, 12:00 PM
Nov 11, 2021, 12:00 PM
Sep 21, 2024, 3:00 AM
Sep 8, 2025, 9:34 PM
rules/emerging-malware.rules