ET MALWARE Win32/Agent.USB Variant CnC Activity

Query · suricata

flow:established,to_server;
stream_size:server,<,5;
content:"|2e d4 d6 19 57 d4 85 ba 0e 9d e5 56 fa 72 db af e5 17 e8 3e 3b 21 b7 26 fc 59 03 db d2 36 32 bb c3 c4 ab 7b 66 74 c4 68 ac 23 5b a3 fc e7 82 6a|"; offset:7; depth:48;
Raw source ET MALWARE Win32/Agent.USB Variant CnC Activity · 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 Win32/Agent.USB Variant CnC Activity";
    flow:established,to_server;
    stream_size:server,<,5;
    content:"|2e d4 d6 19 57 d4 85 ba 0e 9d e5 56 fa 72 db af e5 17 e8 3e 3b 21 b7 26 fc 59 03 db d2 36 32 bb c3 c4 ab 7b 66 74 c4 68 ac 23 5b a3 fc e7 82 6a|"; offset:7; depth:48;
    reference:md5,c911d93b90bdef05be681a3b31c81679;
    reference:url,twitter.com/0xrb/status/1509396448387153920;
    classtype:trojan-activity;
    sid:2035752; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_04_05, deployment Perimeter, malware_family Win32_Agent_USB, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_04_05;
)

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