ET MALWARE Backdoor family PCRat/Gh0st CnC traffic (OUTBOUND) 3

Query · suricata

dsize:>11;
content:"|7b 9e|"; fast_pattern;
byte_jump:4,0,little,from_beginning,post_offset -1;
isdataat:!2,relative;
pcre:"/^.{8}[\x20-\x7e]+?\x7b\x9e/s";
Raw source ET MALWARE Backdoor family PCRat/Gh0st CnC traffic (OUTBOUND) 3 · 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) 3";
    dsize:>11;
    content:"|7b 9e|"; fast_pattern;
    byte_jump:4,0,little,from_beginning,post_offset -1;
    isdataat:!2,relative;
    pcre:"/^.{8}[\x20-\x7e]+?\x7b\x9e/s";
    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:md5,2eed956920934a78200899ef05ace0d8;
    classtype:command-and-control;
    sid:2017548; rev:7;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2013_09_30, deployment Perimeter, malware_family Gh0st, malware_family PCRAT, performance_impact Significant, confidence Medium, signature_severity Critical, tag PCRAT, tag Gh0st, tag RAT, updated_at 2019_10_08;
)

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