ET MALWARE Observed PowerShell/CustomRAT Domain (kleinm .de) in TLS SNI
Sourceet/open
CreatedMay 18, 2022
UpdatedSeptember 12, 2024
Classificationtrojan-activity
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed PowerShell/CustomRAT Domain (kleinm .de) in TLS SNI"; flow:established,to_server; tls.sni; content:"kleinm.de"; bsize:9; fast_pattern; reference:url,blog.malwarebytes.com/threat-intelligence/2022/05/custom-powershell-rat-targets-germans-seeking-information-about-the-ukraine-crisis/; classtype:trojan-activity; sid:2036623; rev:2; metadata:attack_target Client_Endpoint, created_at 2022_05_18, deployment Perimeter, malware_family PowerShell_CustomRAT, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_09_12, reviewed_at 2024_09_12;)
Metadata
attack targetClient_Endpoint
created at2022_05_18
deploymentPerimeter
malware familyPowerShell_CustomRAT
performance impactLow
confidenceHigh
signature severityMajor
tagDescription_Generated_By_Proofpoint_Nexus
updated at2024_09_12
reviewed at2024_09_12
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