ET MALWARE Win32/Sisproc Variant POST to CnC Server

Query · suricata

flow:established,to_server;
http.method;
content:"POST"; nocase;
http.uri;
content:"/GetGrid.asp";
http.request_body;
content:"SN="; depth:3;
content:"&SP="; distance:0;
Raw source ET MALWARE Win32/Sisproc Variant POST to CnC Server · 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 Win32/Sisproc Variant POST to CnC Server";
    flow:established,to_server;
    http.method;
    content:"POST"; nocase;
    http.uri;
    content:"/GetGrid.asp";
    http.request_body;
    content:"SN="; depth:3;
    content:"&SP="; distance:0;
    reference:url,www.sunbeltsecurity.com/partnerresources/cwsandbox/md5.aspx?id=04dc87d4dcf12f9c05a22ab9890a6323;
    reference:url,www.microsoft.com/security/portal/Threat/Encyclopedia/Entry.aspx?Name=Trojan%3AWin32%2FSisproc&ThreatID=-2147342628;
    classtype:command-and-control;
    sid:2013342; rev:5;
    metadata:created_at 2011_08_02, malware_family Win32_Sisproc, signature_severity Major, updated_at 2020_04_21;
)

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