ET MALWARE Sourtoff Receiving Simda Payload

Query · suricata

flow:established,from_server;
flowbits:isset,ET.TROJAN.Sourtoff;
dsize:1300<>1500;
content:"|0a c0|"; depth:2;

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 Sourtoff Receiving Simda Payload · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp $EXTERNAL_NET 20000: -> $HOME_NET 1024: (
    msg:"ET MALWARE Sourtoff Receiving Simda Payload";
    flow:established,from_server;
    flowbits:isset,ET.TROJAN.Sourtoff;
    dsize:1300<>1500;
    content:"|0a c0|"; depth:2;
    reference:md5,5469af0daa10f8acbe552cd2f1f6a6bb;
    classtype:trojan-activity;
    sid:2019313; rev:3;
    metadata:created_at 2014_09_29, signature_severity Major, updated_at 2019_07_26;
)

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