ET MALWARE Win32/Teslacrypt Ransomware HTTP CnC Beacon M2

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:".php?U3ViamVjdD1";
http.header_names;
content:!"Accept";
content:!"Referer|0d 0a|";
Raw source ET MALWARE Win32/Teslacrypt Ransomware HTTP CnC Beacon M2 · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Win32/Teslacrypt Ransomware HTTP CnC Beacon M2";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:".php?U3ViamVjdD1";
    http.header_names;
    content:!"Accept";
    content:!"Referer|0d 0a|";
    reference:md5,c075fa8484d52c3978826c2f07ce9a9c;
    classtype:command-and-control;
    sid:2020718; rev:4;
    metadata:attack_target Client_Endpoint, created_at 2015_03_20, deployment Perimeter, malware_family Win32_Teslacrypt, signature_severity Major, tag c2, updated_at 2020_05_19, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;
)

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