ET INFO ServerChan API Service Domain in DNS Lookup (ftqq .com)
Sourceet/open
CreatedJuly 28, 2025
UpdatedJuly 28, 2025
Classificationmisc-activity
alert dns $HOME_NET any -> any any (msg:"ET INFO ServerChan API Service Domain in DNS Lookup (ftqq .com)"; dns.query; dotprefix; content:".ftqq.com"; nocase; endswith; reference:url,sct.ftqq.com/; reference:url,blog.csdn.net/daxiashangxian/article/details/144735604; classtype:misc-activity; sid:2063786; rev:1; metadata:attack_target Client_Endpoint, created_at 2025_07_28, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_07_28;)
Metadata
attack targetClient_Endpoint
created at2025_07_28
deploymentPerimeter
performance impactLow
confidenceHigh
signature severityInformational
tagDescription_Generated_By_Proofpoint_Nexus
updated at2025_07_28
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