ET MALWARE Backdoor family PCRat/Gh0st CnC traffic (OUTBOUND) 12

Query · suricata

flow:established,to_server;
stream_size:server,<,5;
flowbits:isset,ET.gh0stFmly;
content:"|78 9c 0b cf cc|"; depth:5;

Rule dependencies

⚠ Higher-order rule. It fires on other rules' alerts, not on raw events, so it cannot fire on its own. Deploy the rules it depends on too.

Depends on

Raw source ET MALWARE Backdoor family PCRat/Gh0st CnC traffic (OUTBOUND) 12 · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Backdoor family PCRat/Gh0st CnC traffic (OUTBOUND) 12";
    flow:established,to_server;
    stream_size:server,<,5;
    flowbits:isset,ET.gh0stFmly;
    content:"|78 9c 0b cf cc|"; depth:5;
    reference:url,www.securelist.com/en/descriptions/10155706/Trojan-GameThief.Win32.Magania.eogz;
    reference:url,www.microsoft.com/security/portal/Threat/Encyclopedia/Entry.aspx?Name=Backdoor%3AWin32%2FPcClient.ZR&ThreatID=-2147325231;
    reference:md5,3b1abb60bafbab204aeddf8acdf58ac9;
    classtype:command-and-control;
    sid:2017936; rev:6;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2014_01_06, deployment Perimeter, malware_family Gh0st, malware_family PCRAT, performance_impact Significant, confidence Medium, signature_severity Critical, tag PCRAT, tag Gh0st, tag RAT, updated_at 2021_09_03;
)

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