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    Chrysalis Backdoor Notepad++ Rapid7 IOC Threat Hunt

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    GlassDiceBearhttps://www.dicebear.comhttps://creativecommons.org/publicdomain/zero/1.0/„Glass” (https://www.dicebear.com) by „DiceBear”, licensed under „CC0 1.0” (https://creativecommons.org/publicdomain/zero/1.0/)
    Kevin Nguyen@kevin
    •updated Feb 3, 2026•34•0•275

    This query utilizes the IOCs provided by Rapid7 and focuses on columns in the DeviceFileEvents, DeviceProcessEvents and DeviceNetworkEvents tables. This is a high FP query, however each event will require an investigation to its legitimacy. The query accounts for all devices that have installed notepad++ in the past 400d and only looking for IOCs within time of known compromise in order to save on resources. Some IOCs are commented out due to high FP rate.

    Microsoft Sentinel (KQL)

    Tags

    T1204.002 - Malicious FileT1036 - MasqueradingT1027 - Obfuscated Files or InformationT1027.007 - Dynamic API ResolutionT1140 - Deobfuscate/Decode Files or InformationT1106 - Native APIT1055 - Process InjectionT1620 - Reflective Code LoadingT1059.003 - Windows Command ShellT1083 - File and Directory DiscoveryT1005 - Data from Local SystemT1105 - Ingress Tool TransferT1041 - Exfiltration Over C2 ChannelT1071.001 - Web ProtocolsT1573 - Encrypted ChannelT1547.001 - Registry Run Keys / Startup FolderT1543.003 - Windows ServiceT1480.002 - Mutual ExclusionT1070.004 - File DeletionExploit AttemptAzureAzure Sentinelkql

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