ET MALWARE Win32/ArtraDownloader CnC Activity (GET)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:".php?id=";
content:"&&user="; fast_pattern; distance:0;
content:"ZxxZ"; distance:0;
http.header_names;
content:!"User-Agent";
content:!"Referer";
content:!"Accept";
Raw source ET MALWARE Win32/ArtraDownloader CnC 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 Win32/ArtraDownloader CnC Activity (GET)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:".php?id=";
    content:"&&user="; fast_pattern; distance:0;
    content:"ZxxZ"; distance:0;
    http.header_names;
    content:!"User-Agent";
    content:!"Referer";
    content:!"Accept";
    reference:md5,59b043a913014a1f03258c695b9333af;
    classtype:trojan-activity;
    sid:2036652; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2021_04_15, deployment Perimeter, malware_family Win32_ArtraDownloader, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_04_15;
)

Detection rules belong to the projects that publish them and remain under their own licenses. This site indexes and links to them; it claims no rights in them.