ET MALWARE FRat WebSocket Request M1

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/socket.io/?__sails_io_sdk_version";
http.header;
content:"vInfo|3a 20|eyJtSWQiO"; fast_pattern;
Raw source ET MALWARE FRat WebSocket Request M1 · 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 FRat WebSocket Request M1";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/socket.io/?__sails_io_sdk_version";
    http.header;
    content:"vInfo|3a 20|eyJtSWQiO"; fast_pattern;
    reference:md5,d10966c3a1d0b5694ee9ce0bb73401e2;
    classtype:command-and-control;
    sid:2030279; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_06_10, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_06_10;
)

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