ET MALWARE Win32/Unknown InfoStealer CnC Checkin

Query · suricata

flow:established,to_server;
dsize:45;
content:"|ff ff 02 28 00|"; fast_pattern; startswith;
target:src_ip;
Raw source ET MALWARE Win32/Unknown InfoStealer CnC Checkin · Suricata
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Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp-pkt $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Win32/Unknown InfoStealer CnC Checkin";
    flow:established,to_server;
    dsize:45;
    content:"|ff ff 02 28 00|"; fast_pattern; startswith;
    reference:md5,aed84b4b8397afda419da88630d1fb5d;
    reference:md5,efe6c1af337c32af1e66ed70ceb34dea;
    classtype:trojan-activity;
    sid:2051603; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_Endpoint, tls_state plaintext, created_at 2024_03_11, deployment Perimeter, confidence High, signature_severity Major, tag InfoStealer, updated_at 2024_03_11;
    target:src_ip;
)

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