Versions (2)
Version DetailsCurrent
Rev: 1 • Jul 9, 2024, 12:00 PMET MALWARE [ANY.RUN] MetaStealer v.5 (MC-NMF TLS Server Certificate)
alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE [ANY.RUN] MetaStealer v.5 (MC-NMF TLS Server Certificate)"; flow:established,to_client; content:"|0a 16 03 03|"; depth:4; content:"|30 82 01 25 30 81 d0 a0 03 02 01 02 02 10|"; distance:0; content:"|30 0d 06 09 2a 86 48 86 f7 0d 01 01 05 05 00 30 14 31 12 30 10 06 03 55 04 03 13 09 6c 6f 63 61 6c 68 6f 73 74 30 1e 17 0d|"; distance:16; within:45; fast_pattern; threshold:type both,track by_dst,seconds 360,count 1; reference:url,community.emergingthreats.net/t/metastealer-v-5-tls; classtype:command-and-control; sid:2054419; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state plaintext, created_at 2024_07_09, deployment Perimeter, malware_family MetaStealer, confidence Medium, signature_severity Critical, tag c2, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_07_09, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)
Jul 9, 2024, 12:00 PM
Jul 9, 2024, 12:00 PM
Jul 10, 2024, 12:01 AM
Aug 11, 2025, 10:35 PM
rules/emerging-malware.rules