ET INFO Observed URL Shortener Service Domain (u5p .cn in TLS SNI)
Sourceet/open
CreatedMarch 21, 2023
UpdatedMarch 21, 2023
Classificationmisc-activity
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Observed URL Shortener Service Domain (u5p .cn in TLS SNI)"; flow:established,to_server; tls.sni; dotprefix; content:".u5p.cn"; endswith; fast_pattern; reference:url,u5p.cn/U/About; classtype:misc-activity; sid:2044717; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_03_21, deployment Perimeter, confidence High, signature_severity Informational, updated_at 2023_03_21, reviewed_at 2024_10_14;)
References
Metadata
affected productWindows_XP_Vista_7_8_10_Server_32_64_Bit
attack targetClient_Endpoint
created at2023_03_21
deploymentPerimeter
confidenceHigh
signature severityInformational
updated at2023_03_21
reviewed at2024_10_14
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