ET MALWARE Allasenha/CarnavalHeist RAT CnC Checkin

Query · suricata

flow:established,to_server;
content:"|3c 7c|Info|7c 3e|"; startswith;
content:"|3c 7c 3e|Windows "; fast_pattern; within:150;
content:"|3c 7c 3e 3c 3c 7c|"; endswith;
target:src_ip;
Raw source ET MALWARE Allasenha/CarnavalHeist RAT CnC Checkin · Suricata
Esc
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 Allasenha/CarnavalHeist RAT CnC Checkin";
    flow:established,to_server;
    content:"|3c 7c|Info|7c 3e|"; startswith;
    content:"|3c 7c 3e|Windows "; fast_pattern; within:150;
    content:"|3c 7c 3e 3c 3c 7c|"; endswith;
    reference:url,harfanglab.io/en/insidethelab/allasenha-allakore-variant-azure-c2-steal-banking-latin-america/;
    reference:url,blog.talosintelligence.com/new-banking-trojan-carnavalheist-targets-brazil/;
    classtype:trojan-activity;
    sid:2053207; 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_05_31, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_05_31;
    target:src_ip;
)

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