ET MALWARE DTLoader Binary Request

Query · suricata

flow:established,to_server;
http.request_line;
content:"GET /getrandombase64.php?get="; fast_pattern;
content:"|20|HTTP/1.1"; distance:32; within:9;
http.header_names;
content:"|0d 0a|Host|0d 0a|Connection|0d 0a 0d 0a|"; bsize:22;
Raw source ET MALWARE DTLoader Binary Request · 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 http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE DTLoader Binary Request";
    flow:established,to_server;
    http.request_line;
    content:"GET /getrandombase64.php?get="; fast_pattern;
    content:"|20|HTTP/1.1"; distance:32; within:9;
    http.header_names;
    content:"|0d 0a|Host|0d 0a|Connection|0d 0a 0d 0a|"; bsize:22;
    reference:url,twitter.com/James_inthe_box/status/1321088232512106502;
    reference:md5,259de13f2337562a9075cd8acb1ef615;
    classtype:command-and-control;
    sid:2031127; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_10_27, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_10_27;
)

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