There was an automatic command run – could be a virus?
There was an automatic command run – could be a virus?
The message describes a situation where the laptop's screen resolution changed unexpectedly, and a restart resolved it temporarily. The person is unsure if this is related to malware and is very careful about installing software, always scanning files with tools like Virustotal before opening them. They are seeking clarification on what this means and whether it’s a known issue.
user32.dll is an essential core component. It's unclear why an import would be occurring for it. Have there been any recent Windows updates? The system file checker will scan all vital system files. I'm concerned that a replacement of user32.dll might have introduced unwanted malicious code, even though it functions properly for the Windows GUI.
Is there a button at the bottom right that asks you to activate Windows? Did it get activated correctly before?
SendMessage handle is -1 indicating broadcast to all top-level windows on the system. You must decode messages sent to other window queues. This approach notifies drivers about changes and can refresh device listings across windows. It’s a straightforward method to alert each window application to update. Refer to the relevant SDK header files for parameter meanings, such as:
#define WM_APPCOMMAND
These lines help identify the command type and its function.