ET MALWARE Trojan.Win32.VBKrypt.cugq/Umbra Checkin

Query · suricata

flow:established,to_server;
http.method;
content:"POST"; nocase;
http.uri;
content:"/bot.php"; nocase; fast_pattern; endswith;
http.request_body;
content:"mode="; nocase;
pcre:"/^\d/Ri";
http.header_names;
content:!"Referer";
content:!"Accept";
Raw source ET MALWARE Trojan.Win32.VBKrypt.cugq/Umbra Checkin · 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 Trojan.Win32.VBKrypt.cugq/Umbra Checkin";
    flow:established,to_server;
    http.method;
    content:"POST"; nocase;
    http.uri;
    content:"/bot.php"; nocase; fast_pattern; endswith;
    http.request_body;
    content:"mode="; nocase;
    pcre:"/^\d/Ri";
    http.header_names;
    content:!"Referer";
    content:!"Accept";
    reference:url,securelist.com/en/descriptions/10316591/Trojan.Win32.VBKrypt.cugq;
    reference:url,mcafee.com/threat-intelligence/malware/default.aspx?id=456326;
    reference:url,sophos.com/en-us/threat-center/threat-analyses/viruses-and-spyware/Troj~Agent-RDK/detailed-analysis.aspx;
    reference:md5,a95dacba360e45fc03769ea55c546a7b;
    reference:url,arbornetworks.com/asert/2014/06/the-best-of-both-worlds-soraya;
    classtype:command-and-control;
    sid:2018518; rev:10;
    metadata:created_at 2011_04_28, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_15;
)

Detection rules belong to the projects that publish them and remain under their own licenses. This site indexes and links to them; it claims no rights in them.