Trigger the actual hardware read using VMMDLL_Scatter_ExecuteRead .
However, because "VMM" sounds technical and the file operates at a low system level, malware authors sometimes disguise their malicious code with this name. vmm.dll
The VirtualBox installation is corrupted, the file was accidentally deleted, or your antivirus quarantined it (some AVs flag virtualization DLLs as potentially unsafe). the file was accidentally deleted