Malicious DcRAT Payload Masquerading as Mixed Reality.exe via process_creation

PremiumReviewedSigma · High · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-07-23
Updated
2026-08-28

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 execution of a binary named Mixed Reality.exe from the Windows Media Player directory, a masquerading trick used by Operation DragonReturn to stage its multi-stage DcRAT loader. The China-nexus actor placed the payload under a trusted vendor folder to blend with legitimate software while conducting espionage against Indian tax infrastructure, so early detection exposes the loader before injection and C2.

Related detections9 linkedT1036 — drag to rearrange
Agent Tesla Persistence via Realtek Named Scheduled Task Batch
Suspicious Interlock Fake Updater Executable Execution
Malicious User Account Created by a Computer Account (via security)
Suspicious Execution of agent.exe From WinSyncDefender AppData Directory (via process_creation)
Malicious Scheduled Task Masquerading as Auto Update via schtasks (via process_creation)
Suspicious Novaservice Binary Executing From Public User Directory (via process_creation)
Suspicious Process Argv0 Masquerade As Kernel Worker via GSOCKET
Masquerading Machine-Like Local Admin Account Creation Ending With Dollar Sign (via process_creation)
Renamed Computer Account Renamed Without a Trailing $ - CVE-2021-42278/42287 (via security)
Malicious DcRAT Payload Masquerading as Mixed Reality.exe via process_creation
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.