ET MALWARE WaterDropX PRISM CnC Response

Query · suricata

flow:established,from_server;
http.stat_code;
content:"200";
file.data;
content:"@@"; fast_pattern; offset:1;
content:"@@"; distance:1; within:2;
content:"@@"; distance:0; within:50;
isdataat:!6,relative;
flowbits:isset,ET.waterdropx;

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 MALWARE WaterDropX PRISM CnC Response · 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 MALWARE WaterDropX PRISM CnC Response";
    flow:established,from_server;
    http.stat_code;
    content:"200";
    file.data;
    content:"@@"; fast_pattern; offset:1;
    content:"@@"; distance:1; within:2;
    content:"@@"; distance:0; within:50;
    isdataat:!6,relative;
    flowbits:isset,ET.waterdropx;
    classtype:command-and-control;
    sid:2033271; rev:2;
    metadata:created_at 2021_07_07, malware_family PRISM, confidence High, signature_severity Major, tag WaterDropX, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_07_07;
)

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