ET MALWARE Observed DNS Query to WinterVivern Domain (ocsp-report .com)
Sourceet/open
CreatedMarch 21, 2023
UpdatedAugust 29, 2023
Classificationtrojan-activity
alert dns $HOME_NET any -> any any (msg:"ET MALWARE Observed DNS Query to WinterVivern Domain (ocsp-report .com)"; dns.query; dotprefix; content:".ocsp-report.com"; nocase; endswith; reference:url,twitter.com/felixaime/status/1636760060931248130; classtype:trojan-activity; sid:2044711; rev:2; metadata:attack_target Client_Endpoint, created_at 2023_03_21, deployment Perimeter, confidence High, signature_severity Major, tag WinterVivern, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_08_29, reviewed_at 2023_08_29;)
References
Metadata
attack targetClient_Endpoint
created at2023_03_21
deploymentPerimeter
confidenceHigh
signature severityMajor
tagDescription_Generated_By_Proofpoint_Nexus
updated at2023_08_29
reviewed at2023_08_29
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