ET MALWARE Teslarvng Ransomware CnC Activity M3

Query · suricata

flow:established,to_server;
content:"|00 00|encrypted|20|local|20|size|20 3a|"; nocase; fast_pattern;
content:"|0d 0a|Encrypted|20|Network|20|size|20 3a|"; nocase; distance:0;
Raw source ET MALWARE Teslarvng Ransomware CnC Activity M3 · Suricata
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Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Teslarvng Ransomware CnC Activity M3";
    flow:established,to_server;
    content:"|00 00|encrypted|20|local|20|size|20 3a|"; nocase; fast_pattern;
    content:"|0d 0a|Encrypted|20|Network|20|size|20 3a|"; nocase; distance:0;
    reference:md5,d26e609c77e314fc3f242a736c323ab6;
    classtype:command-and-control;
    sid:2033018; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_05_24, deployment Perimeter, malware_family Ouroboros, confidence High, signature_severity Major, tag Ransomware, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_05_24, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact;
)

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