ET USER_AGENTS websocket-sharp User-Agent Observed

Query · suricata

flow:established,to_server;
http.user_agent;
content:"websocket-sharp/"; startswith; fast_pattern;
target:src_ip;
Raw source ET USER_AGENTS websocket-sharp User-Agent Observed · 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 $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET USER_AGENTS websocket-sharp User-Agent Observed";
    flow:established,to_server;
    http.user_agent;
    content:"websocket-sharp/"; startswith; fast_pattern;
    reference:url,github.com/sta/websocket-sharp;
    classtype:bad-unknown;
    sid:2053849; 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 2022_02_01, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_06_25, former_sid 2851038;
    target:src_ip;
)

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