ET MALWARE XDMonitor Sending Debug Messages

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:".php?usid="; fast_pattern;
content:"&txt=00"; distance:0;
pcre:"/^[0-9a-f]+$/R";
Raw source ET MALWARE XDMonitor Sending Debug Messages · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE XDMonitor Sending Debug Messages";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:".php?usid="; fast_pattern;
    content:"&txt=00"; distance:0;
    pcre:"/^[0-9a-f]+$/R";
    reference:url,vblocalhost.com/uploads/VB2020-Faou-Labelle.pdf;
    classtype:targeted-activity;
    sid:2030954; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_10_02, deployment Perimeter, malware_family XDSpy, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_10_02;
)

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