ET MALWARE Win32/Ymacco.AA1C Activity

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:".php?REQ="; fast_pattern;
content:"&ID="; distance:0;
http.user_agent;
content:"|29 20|WindowsPowerShell/";
http.header_names;
content:!"Accept";
content:!"Referer";
Raw source ET MALWARE Win32/Ymacco.AA1C Activity · 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/Ymacco.AA1C Activity";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:".php?REQ="; fast_pattern;
    content:"&ID="; distance:0;
    http.user_agent;
    content:"|29 20|WindowsPowerShell/";
    http.header_names;
    content:!"Accept";
    content:!"Referer";
    reference:md5,b100f0ab63a2b74a5d5ff54d533fc60f;
    classtype:trojan-activity;
    sid:2031477; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2021_01_04, deployment Perimeter, malware_family Win32_Ymacco_AA1C, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_01_04;
)

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