ET MALWARE MSIL/Modi RAT CnC Command Outbound (ds)

Query · suricata

flow:established,to_server;
dsize:<50;
content:"ds|7c 7c|"; nocase; depth:5; fast_pattern;
content:"|7c 7c|"; distance:0;
content:"|7c|";
isdataat:!1,relative;
Raw source ET MALWARE MSIL/Modi RAT CnC Command Outbound (ds) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE MSIL/Modi RAT CnC Command Outbound (ds)";
    flow:established,to_server;
    dsize:<50;
    content:"ds|7c 7c|"; nocase; depth:5; fast_pattern;
    content:"|7c 7c|"; distance:0;
    content:"|7c|";
    isdataat:!1,relative;
    reference:md5,d09be7dd3433a0b6fc2bc729f181a1f0;
    classtype:command-and-control;
    sid:2030142; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_05_11, deployment Perimeter, malware_family ModiRAT, confidence High, signature_severity Major, updated_at 2020_11_12;
)

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