ET MALWARE Observed DNS Query to TA455 Domain (cortanaservice .com)
Sourceet/open
CreatedApril 7, 2022
UpdatedAugust 1, 2023
Classificationtrojan-activity
alert dns $HOME_NET any -> any any (msg:"ET MALWARE Observed DNS Query to TA455 Domain (cortanaservice .com)"; dns.query; dotprefix; content:".cortanaservice.com"; nocase; endswith; reference:url,about.fb.com/wp-content/uploads/2022/04/Meta-Quarterly-Adversarial-Threat-Report_Q1-2022.pdf; classtype:trojan-activity; sid:2035808; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_04_07, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_08_01;)
References
Metadata
affected productWindows_XP_Vista_7_8_10_Server_32_64_Bit
attack targetClient_Endpoint
created at2022_04_07
deploymentPerimeter
confidenceHigh
signature severityMajor
tagDescription_Generated_By_Proofpoint_Nexus
updated at2023_08_01
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