Malicious UNC1549 OneDrive-Masquerading Run Key Persistence (via registry_set)

ATT&CK techniques

Persistence → Defense Evasion

Recon
Resource Dev
Initial Access
Execution
Persistence
- T1547.001Registry Run Keys / Startup Folder
Priv Esc
- T1547.001Registry Run Keys / Startup Folder
Defense Evasion
- T1036.005Match Legitimate Resource Name or Location
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects Run key values named to impersonate OneDrive components such as OneDriveFileCoAuth or OneDriveCoUpdate. UNC1549 planted these autorun entries to relaunch MINIBIKE side-loading at logon while blending with genuine OneDrive tasks. A Run value borrowing the OneDrive brand for a non-standard executable path is a persistence and masquerading indicator.

Reporting behind it

Related detections9 linkedT1547.001 — drag to rearrange

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Malicious UNC1549 OneDrive-Masquerading Run Key Persistence (via registry_set)

Pivot detection · T1547.001 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

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