ET MALWARE Observed DNS Query to Crpx0 Ransomware Domain
Sourceet/open
CreatedApril 2, 2026
UpdatedApril 2, 2026
Classificationtrojan-activity
alert dns $HOME_NET any -> any any (msg:"ET MALWARE Observed DNS Query to Crpx0 Ransomware Domain"; dns.query; dotprefix; content:".caribb.ru"; nocase; endswith; classtype:trojan-activity; sid:2068529; rev:1; metadata:attack_target Client_Endpoint, created_at 2026_04_02, deployment Perimeter, confidence High, signature_severity Major, tag Ransomware, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2026_04_02;)
Metadata
attack targetClient_Endpoint
created at2026_04_02
deploymentPerimeter
confidenceHigh
signature severityMajor
tagDescription_Generated_By_Proofpoint_Nexus
updated at2026_04_02
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