ET INFO Observed DNS Query to Online Document Sharing Service (onlyoffice .com)
Sourceet/open
CreatedJune 4, 2025
UpdatedJune 4, 2025
Classificationmisc-activity
alert dns $HOME_NET any -> any any (msg:"ET INFO Observed DNS Query to Online Document Sharing Service (onlyoffice .com)"; dns.query; dotprefix; content:".onlyoffice.com"; nocase; endswith; threshold:type limit,count 1,seconds 300,track by_src; classtype:misc-activity; sid:2062767; rev:1; metadata:attack_target Client_Endpoint, tls_state plaintext, created_at 2025_06_04, deployment Perimeter, confidence High, signature_severity Informational, tag TA_Abused_Service, updated_at 2025_06_04; target:src_ip;)
Metadata
attack targetClient_Endpoint
tls stateplaintext
created at2025_06_04
deploymentPerimeter
confidenceHigh
signature severityInformational
tagTA_Abused_Service
updated at2025_06_04
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