ET MALWARE JS/Ostap Maldoc Check-in

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:".php?g=";
content:"&k="; distance:0;
content:"&x="; distance:0;
content:"@@"; distance:0;
content:"@@"; distance:0;
content:"@@*"; fast_pattern; distance:0;
http.header_names;
content:!"Referer|0d 0a|";
Raw source ET MALWARE JS/Ostap Maldoc Check-in · 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 JS/Ostap Maldoc Check-in";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:".php?g=";
    content:"&k="; distance:0;
    content:"&x="; distance:0;
    content:"@@"; distance:0;
    content:"@@"; distance:0;
    content:"@@*"; fast_pattern; distance:0;
    http.header_names;
    content:!"Referer|0d 0a|";
    reference:md5,c53393908f80e993366deec605fe7372;
    classtype:trojan-activity;
    sid:2029539; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_02_26, deployment Perimeter, malware_family JS_Ostap, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_02_26;
)

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