ET MALWARE TA399 SideWinder APT CnC Domain in DNS Lookup (paknavy .defpak .org)
Sourceet/open
CreatedAugust 8, 2024
UpdatedApril 15, 2025
Classificationtrojan-activity
alert dns $HOME_NET any -> any any (msg:"ET MALWARE TA399 SideWinder APT CnC Domain in DNS Lookup (paknavy .defpak .org)"; dns.query; dotprefix; content:".paknavy.defpak.org"; nocase; endswith; reference:md5,43d35b5b20f491be219ab2eaa172ec55; classtype:trojan-activity; sid:2055107; rev:2; metadata:attack_target Client_Endpoint, created_at 2024_08_08, deployment Perimeter, deprecation_reason Age, confidence High, signature_severity Major, tag Sidewinder, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_04_15, reviewed_at 2025_04_15;)
References
| md5 | 43d35b5b20f491be219ab2eaa172ec55 |
Metadata
attack targetClient_Endpoint
created at2024_08_08
deploymentPerimeter
deprecation reasonAge
confidenceHigh
signature severityMajor
tagDescription_Generated_By_Proofpoint_Nexus
updated at2025_04_15
reviewed at2025_04_15
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