ET MALWARE Observed DNS Query to TA455 Domain (msnapp .help)
Sourceet/open
CreatedOctober 27, 2025
UpdatedOctober 27, 2025
Classificationtrojan-activity
alert dns $HOME_NET any -> any any (msg:"ET MALWARE Observed DNS Query to TA455 Domain (msnapp .help)"; dns.query; dotprefix; content:".msnapp.help"; nocase; endswith; classtype:trojan-activity; sid:2065427; rev:1; metadata:attack_target Client_Endpoint, created_at 2025_10_27, deployment Perimeter, confidence High, signature_severity Major, tag TA455, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_10_27;)
Metadata
attack targetClient_Endpoint
created at2025_10_27
deploymentPerimeter
confidenceHigh
signature severityMajor
tagDescription_Generated_By_Proofpoint_Nexus
updated at2025_10_27
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