ET MALWARE Ixeshe/Mecklow Checkin 2

Query · suricata

flow:established,to_server;
http.header_names;
content:"|0d 0a|x_bigfix_client_string|0d 0a|"; depth:26; fast_pattern;
content:!"Accept";
content:!"Referer";
Raw source ET MALWARE Ixeshe/Mecklow Checkin 2 · Suricata
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Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Ixeshe/Mecklow Checkin 2";
    flow:established,to_server;
    http.header_names;
    content:"|0d 0a|x_bigfix_client_string|0d 0a|"; depth:26; fast_pattern;
    content:!"Accept";
    content:!"Referer";
    reference:md5,df9ce5d06498419a3c93ad95a2ed82fd;
    reference:url,www.microsoft.com/security/portal/Threat/Encyclopedia/Entry.aspx?Name=Backdoor%3aWin32%2fMecklow.A&ThreatID=-2147325849;
    reference:url,trendmicro.com/cloud-content/us/pdfs/security-intelligence/white-papers/wp_ixeshe.pdf;
    classtype:command-and-control;
    sid:2018380; rev:8;
    metadata:created_at 2012_06_19, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_18;
)

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