ET MALWARE DNS Reply Sinkhole - Anubis - 195.22.26.192/26

Query · suricata

content:"|00 01 00 01|";
content:"|00 04 c3 16 1a|"; distance:4; within:5;
byte_test:1,>,224,0,relative;
content:!"|0e|anubisnetworks|03|com|00|"; nocase;
content:!"|05|mpsmx|03|net|00|"; nocase;
content:!"|09|mailspike|03|com|00|"; nocase;
content:!"|09|mailspike|03|org|00|"; nocase;
threshold:type limit, track by_src, seconds 60, count 1;
Raw source ET MALWARE DNS Reply Sinkhole - Anubis - 195.22.26.192/26 · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert dns any any -> $HOME_NET any (
    msg:"ET MALWARE DNS Reply Sinkhole - Anubis - 195.22.26.192/26";
    content:"|00 01 00 01|";
    content:"|00 04 c3 16 1a|"; distance:4; within:5;
    byte_test:1,>,224,0,relative;
    content:!"|0e|anubisnetworks|03|com|00|"; nocase;
    content:!"|05|mpsmx|03|net|00|"; nocase;
    content:!"|09|mailspike|03|com|00|"; nocase;
    content:!"|09|mailspike|03|org|00|"; nocase;
    threshold:type limit, track by_src, seconds 60, count 1;
    classtype:trojan-activity;
    sid:2018455; rev:6;
    metadata:created_at 2014_05_08, confidence High, signature_severity Major, updated_at 2022_07_13, reviewed_at 2024_03_06;
)

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