ET MALWARE Reverse Base64 Encoded MZ Header Payload Inbound

Query · suricata

flow:established,to_client;
content:"AAAAEAAAAMAAQqVT"; endswith;
Raw source ET MALWARE Reverse Base64 Encoded MZ Header Payload Inbound · 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 http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET MALWARE Reverse Base64 Encoded MZ Header Payload Inbound";
    flow:established,to_client;
    content:"AAAAEAAAAMAAQqVT"; endswith;
    reference:md5,ed54f068782aaff84dce2776a3ffbd73;
    classtype:trojan-activity;
    sid:2057635; 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 TLSDecrypt, created_at 2024_11_15, deployment Perimeter, deployment SSLDecrypt, malware_family ReverseLoader, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_11_18;
)

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