ET MALWARE KeyBase Keylogger HTTP Pattern

Query · suricata

flow:to_server,established;
http.method;
content:"GET"; nocase;
http.uri;
content:"/post.php?type="; fast_pattern;
content:"&machinename="; distance:0;
http.header_names;
content:!"User-Agent|0d 0a|";
http.header;
pcre:"/^Host\x3a[^\r\n]+\r\n(?:Connection\x3a\x20Keep-Alive\r\n)?(?:\r\n)?/";
Raw source ET MALWARE KeyBase Keylogger HTTP Pattern · Suricata
Esc
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 KeyBase Keylogger HTTP Pattern";
    flow:to_server,established;
    http.method;
    content:"GET"; nocase;
    http.uri;
    content:"/post.php?type="; fast_pattern;
    content:"&machinename="; distance:0;
    http.header_names;
    content:!"User-Agent|0d 0a|";
    http.header;
    pcre:"/^Host\x3a[^\r\n]+\r\n(?:Connection\x3a\x20Keep-Alive\r\n)?(?:\r\n)?/";
    reference:md5,5626771cf6751286de4b90ea4b8df94d;
    reference:url,researchcenter.paloaltonetworks.com/2015/06/keybase-keylogger-malware-family-exposed/;
    classtype:trojan-activity;
    sid:2021440; rev:3;
    metadata:created_at 2015_07_20, signature_severity Major, updated_at 2020_05_29;
)

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