ET WEB_CLIENT WebDAV Retrieving an .url

Query · suricata

flow:established,to_client;
xbits:isset, ET.PROPFIND,track ip_dst;
http.stat_code;
content:"200";
http.content_type;
content:"application/x-mswinurl"; bsize:22;
file.data;
content:"[InternetShortcut]";
content:"URL=file://"; distance:0; fast_pattern;

Rule dependencies

⚠ Higher-order rule. It fires on other rules' alerts, not on raw events, so it cannot fire on its own. Deploy the rules it depends on too.

Depends on

Raw source ET WEB_CLIENT WebDAV Retrieving an .url · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET WEB_CLIENT WebDAV Retrieving an .url";
    flow:established,to_client;
    xbits:isset, ET.PROPFIND,track ip_dst;
    http.stat_code;
    content:"200";
    http.content_type;
    content:"application/x-mswinurl"; bsize:22;
    file.data;
    content:"[InternetShortcut]";
    content:"URL=file://"; distance:0; fast_pattern;
    classtype:misc-activity;
    sid:2049315; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_11_27, deployment Perimeter, deployment SSLDecrypt, confidence Low, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_12_13, reviewed_at 2024_10_14;
)

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