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InformationalSplunk security contentRaven Tait +1

Windows OneDrive Share Mounted via Net

The following analytic detects the use of net.exe or net1.exe to mount a OneDrive share as a network drive. This behavior may indicate an attempt to stage, access, or exfiltrate data through a cloud-hosted WebDAV…

Description

The following analytic detects the use of net.exe or net1.exe to mount a OneDrive share as a network drive. This behavior may indicate an attempt to stage, access, or exfiltrate data through a cloud-hosted WebDAV path rather than a traditional file share. If confirmed malicious, an attacker could use the mounted share to move data outside the environment over trusted cloud infrastructure.

Detection logic

Detection requirements

Platform
ESXiLinuxmacOSWindows

The rule states no platform. This is derived from the ATT&CK technique it maps to.

Log source category
crowdstrike_processrollup2sysmon_eventid_1windows_event_log_security_4688

Known benign triggers

  • Legitimate users may mount OneDrive shares for synchronized access or backup purposes. Monitor for unauthorized or unusual mounting activity to reduce false alerts.

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