My friend’s laptop was infected by this rogue anti-spyware program that spreads itself via untrusted websites, flash drives with hidden "autorun.inf" in them that you inserted into your USB ports, downloaded files that masqueraded as video files and many others. There are numerous ways you can be infected with it.

Micro AV displays fake security warnings telling that your system is compromised and claiming that only Micro AV can remove it. No matter what options you click, the problems never go away. I used the steps below to successfully remove the Micro AV in a Windows XP machine:

  1. Create a rescue disk using Kaspersky Antivirus/Kaspersky Internet Security.  If you don’t have one, you can try any methods that would allow you to scan and clean viruses, worms, trojans, malwares, and spywares from your PC. But I recommend you download the 30-day trial version from their website. This is a detailed instruction for creating the Kaspersky Rescue disk.
  2. I assumed you’ve burned the rescue disk ISO image to a CD-R in step 1, boot your computer using this rescue disk.  You should be able to perform a system scan and quarantine or delete the infected files found by Kaspersky.
  3. At this point, you can now boot your computer normally. But hey, Micro AV dialog box should pop out again!  Don’t click anything yet, go to task Manager (by pressing Ctrl+Alt+Del, end clicking the Task manager button). Click the processes tab, and END the task/processes for the following files you found: Micro AV.EXE, MicroAntivirus.exe.
  4. Click START -> RUN, and type MSCONFIG, select STARTUP tab and uncheck all instances of Micro AV or MicroAntivirus you will find.  Also, uncheck startup files that begins with YUV (e.g., YUV41, YUV32, etc).
  5. Do step 4 for all user accounts in your windows XP machines.
  6. Install and update your preferred Internet Security solution.  Simply installing antivirus software nowadays is not enough.

This time, the procedure I just mentioned does not come with screenshots, sorry! Let me know if you’re still having problem, I might be able to help.

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