ET MALWARE ELF.MrBlack DOS.TF Malformed Lookup (/lib32/libc.so.6)

Query · suricata

content:"|01|"; offset:2; depth:1;
content:"|00 01 00 00 00 00 00|"; distance:1; within:7;
content:"|0b|/lib32/libc|02|so|01|6|00|"; fast_pattern; distance:0; nocase;
Raw source ET MALWARE ELF.MrBlack DOS.TF Malformed Lookup (/lib32/libc.so.6) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert udp $HOME_NET any -> any 53 (
    msg:"ET MALWARE ELF.MrBlack DOS.TF Malformed Lookup (/lib32/libc.so.6)";
    content:"|01|"; offset:2; depth:1;
    content:"|00 01 00 00 00 00 00|"; distance:1; within:7;
    content:"|0b|/lib32/libc|02|so|01|6|00|"; fast_pattern; distance:0; nocase;
    reference:md5,312fa52a7992e58359cb68bb0f029ea7;
    reference:url,blog.malwaremustdie.org/2016/01/mmd-0048-2016-ddostf-new-elf-windows.html;
    classtype:trojan-activity;
    sid:2022335; rev:3;
    metadata:created_at 2016_01_07, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_08_29;
)

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