ET MALWARE ELF Linux/Dnsamp.AB Variant CnC

alert tcp $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE ELF Linux/Dnsamp.AB Variant CnC";
    flow:established,to_server;
    dsize:84;
    content:"|54|"; depth:1;
    content:"|11|"; distance:6; within:1;
    content:"|95 08 00 00 01 00 00 00|"; distance:68; within:8; fast_pattern;
    isdataat:!1,relative;
    reference:md5,b1fcab441a1221b33206924f12af64a0;
    reference:url,intezer.com/blog/ddos/chinaz-updates-toolkit-by-introducing-new-undetected-malware/;
    classtype:command-and-control;
    sid:2029839; rev:3;
    metadata:attack_target Client_Endpoint, created_at 2020_04_08, deployment Perimeter, performance_impact Moderate, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_11_12;
)