ET MALWARE TA453/CharmingKitten HYPERSCRAPE Tool Check-in Activity (GET)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.request_line;
content:"?Ck=OK HTTP/1.1"; fast_pattern; endswith;
http.header_names;
content:"|0d 0a|Host|0d 0a|Accept-Encoding|0d 0a|Connection|0d 0a 0d 0a|"; bsize:39;
Raw source ET MALWARE TA453/CharmingKitten HYPERSCRAPE Tool Check-in Activity (GET) · 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 TA453/CharmingKitten HYPERSCRAPE Tool Check-in Activity (GET)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.request_line;
    content:"?Ck=OK HTTP/1.1"; fast_pattern; endswith;
    http.header_names;
    content:"|0d 0a|Host|0d 0a|Accept-Encoding|0d 0a|Connection|0d 0a 0d 0a|"; bsize:39;
    reference:url,blog.google/threat-analysis-group/new-iranian-apt-data-extraction-tool/;
    reference:md5,5c91c1d833173f6ae599ef1d4133f235;
    reference:md5,10f5561b7515bc0d66916bef04b63dae;
    classtype:trojan-activity;
    sid:2038594; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_08_23, deployment Perimeter, malware_family TA453, malware_family APT35, malware_family CharmingKitten, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_08_23;
)

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