On my desktop, I all of a sudden have a little blue rectangle with two white squares in it filling up half of the square. Occasionally the squares are changing color. The rectangle is only about 1/16 of an inch big. It can be moved around on the screen. There is nothing running on startup when doing msconfig. I have ran malwarebytes and symantec and nothing is working.

Anyone have an idea of what type of virus this may be or how to fix it?

Dani AI

Generated

The tiny, movable blue rectangle described by is almost certainly a software window or overlay, not a hardware pixel fault. A stuck pixel or LCD defect cannot be dragged around the screen; a movable element means some process is drawing a small top-level window or OSD. The OP already ran Symantec and Malwarebytes, and both and are correct that logs help — those scans plus an autorun/startup listing are the usual starting evidence.

Practical next checks to identify the owner of the window:

  • Boot to Safe Mode (older Windows: press F8 during boot; newer Windows: use recovery options) — if the rectangle disappears in Safe Mode, the cause is nearly always a third-party program or driver.
  • Use Process Explorer (Sysinternals) or Task Manager to find the window's owning process. In Process Explorer use the "find window's process" crosshair and drop it on the rectangle to reveal the executable and path.
  • Inspect Services, Scheduled Tasks and the notification area for unfamiliar entries; run a clean-boot (disable non-Microsoft services/startups) to narrow it down.
  • Consider common benign sources: desktop gadgets/widgets, overlay tools (FPS counters, screen annotation), remote-control indicators, or accessibility helpers — these look like small movable UI elements.

Cautions: do not delete or terminate files until the owning executable and path are identified; back up important data and, if malware is suspected, isolate the machine from the network and keep scan logs handy. The Malwarebytes and HijackThis logs (as suggested by ) plus the Process Explorer result are normally sufficient to pinpoint the culprit.

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We have no way of knowing for sure unless you post some logs, one of which should be the MBA-M scan log and also a log.

As jholland1964 said, Run MBA-M and Hijackthis, here are some instructions for them :)

1. - Download Malwarebytes' Anti-Malware (http://www.download.com/Malwarebytes-Anti-Malware/3000-8022_4-10804572.html?part=dl-10804572&subj=dl&tag=button) to your desktop.

* Double-click mbam-setup.exe and follow the prompts to install the program.
* At the end, be sure to checkmark the Update Malwarebytes' Anti-Malware and Launch Malwarebytes' Anti-Malware, then click Finish.
* If an update is found, it will download and install the latest version.
* Once the program has loaded, select Perform full scan, then click Scan.
* When the scan is complete, click OK, then Show Results to view the results.
* Be sure that everything is checked, and click Remove Selected.
* When completed, a log will open in Notepad.
* Post the log back here.

Make sure that you restart the computer.

The log can also be found here:
C:\Documents and Settings\Username\Application Data\Malwarebytes\Malwarebytes' Anti-Malware\Logs\log-date.txt
Or at C:\Program Files\Malwarebytes' Anti-Malware\Logs\log-date.txt

2. - Download and post the log.

In your reply, post the logs (in this order):
1. - Malware Bytes Log
2. - Hijackthis Log

Thanks,

Cohen

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