Suspicious OneDrive Masquerading TLB Marker File in ProgramData

PremiumReviewedSigma · Medium · v1
Product
windows
Category
file_event
Author
HuntRule
Published
2026-10-06
Updated
2026-10-06

ATT&CK techniques

Defense Evasion
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Defense Evasion

  8. Cred Access

  9. Discovery

  10. Lateral Movement

  11. Collection

  12. C2

  13. Exfiltration

  14. Impact

What it detects

This rule detects the creation of a file named MicrosoftOneDrive.tlb directly in the ProgramData root. HoneyMyte used this file as an infection marker while masquerading as a legitimate OneDrive component as reported by Kaspersky. A type library file impersonating OneDrive at this location indicates implant staging and masquerading.

Related detections9 linkedT1036 — drag to rearrange
Suspicious Svchost Execution from Non-Services Parent
Suspicious Executable Launched from PerfLogs Directory by Estate Ransomware
Malicious Renamed Python Interpreter svchostc Executing Script (via process_creation)
Suspicious Scripting Interpreter Execution From Downloads Or Temp via Reputation Hijacking
Suspicious MMC Console Loading MSC File From User Writable Path
Suspicious EAGERBEE Configuration File Created in Public User Directory via File Event
Malicious DLL Execution With Non Standard Extension via rundll32
Suspicious Rclone Exfiltration Masquerading as wininit.exe
Suspicious Executable Running from Public Pictures Directory
Suspicious OneDrive Masquerading TLB Marker File in ProgramData
Pivot detection · T1036 · 9 related

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