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This "can" be malware, but is most likely your pointer device going wonky. First unplug the mouse, trackball, or whatever it is you are using for a mouse. If you are still using an old PS2 connection (round plug), consider getting a USB mouse to replace it.
Plug your mouse back in and see if it solves the problem.
Try a new mouse.
If it's not the mouse (you just said the cursor is moving) it could be that the left arrow on your keyboard is stuck. In that case, rake your keyboard, tap ******* the arrow keys, turn over the keyboard and shake out any large Cheeto crumbs, use compressed air (if possible) to blow the dust out.
Unplug your keyboard from the computer and plug it back in. If you are still using the old PS2 keyboard (round plug), consider getting a USB keyboard to replace it. *** warning
*** warning, do NOT throw out the old PS2 plug keyboard if you replace it. You may need it to get into the BIOS some time in the future if the electronics don't recognize a USB keyboard on boot.
To try to resolve the issue: 1.) Will a different keyboard and mouse work (PS2 is the name of these connections) If they will, damage to the keyboard and mouse is likely) 2.) Will a usb mouse and keyboard work? If they do, then the problem is with the controller on the mobo, unlikley but MAY have been casued by static.
If the USB keyboard and mouse do not work, you have some problems with the motherboard
Try switching off and unplugging the computer, remove the coin shaped BIOS battery and plug in the keyboard and mouse, wait 2 minutes or so and put the battery back, replug in and power on, see if the bios detects the keyboard and mouse (you will see the bios screen flash up a message). If the computer does nOT detect the keyboard and mouse it will (or should) flash a message on the screen saying "no PS2 keyboard or mouse detected".
If this fails to detect the mouse and keyboard and you get no message or beeps, then there may be damage to the connector ports.
If you can get a USB keyboard and mouse to work, use them, Effecting a repair to the motherboard will not be a viable option
Try moving the mouse receivers usb plug in to another port. Unplug any new devices and restart computer. Then replug in any new usb devices.
If still not working.......
Look at Office Depot and other office stores for a replacement wireless mouse. I have seen them as low a $9.99 on up. You might even want to upgrade and get a wireless mouse and keyboard set.
The mouse should be Plug and Play. Did you install the drivers before plugging the mouse's receiver in? The PC has to have the drivers first in order to take advantage of the Plug and Play capability. If you plugged the mouse's receiver in before installing the drivers, unplug the mouse receiver, uninstall the driver, reboot your PC, reinstall the driver, then plug the receiver in and you should be fine.
Otherwise, press the Connect button on the receiver first, and then the Connect button on the mouse, and that should establish the connection. You don't need to disable your touch pad in order to use the mouse.