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    CldFlt Driver Load Correlated with SyncRootManager Registry Modification - CVE-2026-41091

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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/)
    Ibrahim Saud@tektrix
    •updated Jun 23, 2026•7•0•17

    Detects CldFlt.sys driver load activity coinciding with SyncRootManager registry modifications by non-standard processes, indicating potential RedSun exploitation of CVE-2026-41091 via the Cloud Files filter driver path. This correlation suggests an attempt to establish persistence or escalate privileges by manipulating system components related to cloud file synchronization.

    Microsoft Sentinel (KQL)

    Tags

    T1546.001 - Change Default File AssociationT1068 - Exploitation for Privilege EscalationTA0004 - Privilege EscalationTA0003 - PersistenceDriver LoadRegistry Key ModificationRegistry Value SetExploit AttemptProcess Privilege EscalationWindowsCVE-2026-41091kql

    Found in

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