ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon Response

Query · suricata

flow:established,to_client;
file_data;
content:"---!!!INSERTED!!!---"; within:20;
Raw source ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon Response · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon Response";
    flow:established,to_client;
    file_data;
    content:"---!!!INSERTED!!!---"; within:20;
    reference:md5,ee90ec9935c7b8e1a5dad364d4545851;
    classtype:command-and-control;
    sid:2021724; rev:3;
    metadata:attack_target Client_Endpoint, created_at 2015_08_28, deployment Perimeter, signature_severity Major, tag c2, updated_at 2019_07_26, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;
)

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