Vmm.dll [upd] Jun 2026

vmm.dll is – it is a legitimate Oracle VirtualBox component. However, due to its common name and role as a loaded library, it is frequently impersonated in DLL sideloading attacks.

A file named vmm.dll appearing in C:\Windows\System32 or C:\Windows\SysWOW64 is highly suspicious. It may be malware disguised as a legitimate DLL. Always verify the digital signature (right-click → Properties → Digital Signatures). Legitimate copies are signed by Oracle Corporation or Microsoft Corporation . vmm.dll

These usually occur during software installation, when a program starts up, or when Windows is shutting down. How to Fix vmm.dll Errors It may be malware disguised as a legitimate DLL

Threat actors often name malware vmm.dll to blend in or exploit trust. Known abuse scenarios: These usually occur during software installation, when a

To understand the DLL, one must understand the architecture it supports. A Virtual Machine Monitor (or Hypervisor) has three primary responsibilities:

: Automatically handle the translation of virtual memory addresses (like those used by a running process) into physical addresses.

dir "C:\Program Files\Oracle\VirtualBox\vmm.dll"