No one wants to run a security program that uses false positives. When a scanner picks up false infections it can mean two things; first, the files are not on a computer at all or second, the files are non-malicious. Some fake security tools supposedly detect fake infections in order to attract customers. However, even legitimate software sometimes contains errors that lead into dealing with false positives.
Tuesday updates on AVG anti-virus caused the scanner to detect User32.dll file as it was related to PSW.Banker4.APSA trojan. Not only it is a false positive, but it is also an important component of Windows operating system. AVG users are strongly recommended to update the program as soon as possible. The error is fixed on the later updates of the software.
Those who ran a scanner after downloading the corrupted update were prompted to delete user32.dll. The absence of this file doesn’t cause any visible damage on Windows Vista, but the machines running Windows XP were reported to have boot issues. The missing user32.dll may be restored from c:\windows\system32\dllcache once you boot from a CD or run system recovery.
November 17th, 2008 at 9:09 am
[...] yet, it brought a shadow on AVG Technologies. A week ago the things got much worse when the same antivirus scanner insisted on erasing user32.dll because it was a part of PSW.Banker4.APSA trojan. Those who trusted the anti-virus enough and [...]
December 29th, 2009 at 2:31 pm
I’m having huge problems removing this Security tools malicious software everything i try it comes up with an error. i’ve downloaded the spyware doctor but security tools wont let me run it, i’ve also tried manually ending process through task manager but wont allow me to open that either or the command prompt. need urgent help as i cant run no programs except I.E