Remove APPSTEIN.OPTCHECKER.DLL malware!
Fix it immediately 
APPSTEIN.OPTCHECKER.DLL Information and Removal:
The file APPSTEIN.OPTCHECKER.DLL was tested and considered as Adware.
Adware displays pop-up ads in order to generate revenue for its author.
APPSTEIN.OPTCHECKER.DLL shows pop-up ads or text ads or advertising banners.
Sometimes APPSTEIN.OPTCHECKER.DLL displays coupons banners for sites you are visiting.
The banners are really annoying and invasive.
There is no way to stop APPSTEIN.OPTCHECKER.DLL unwanted pop-ups.
Clicking link causes randomly redirecting your browser to the different pages with advertisements of computer speedup utilities fake antiviruses and other unwanted software.
How did APPSTEIN.OPTCHECKER.DLL got on my computer?
It can be downloaded from the program's web site or bundled with some third-party software.
APPSTEIN.OPTCHECKER.DLL is often bundled within the installers from download sites.
Most of software download sites distribute pay-per-install bundles instead of original installers.
We recommend you to download software only from vendor web site or from trusted sources.
Get more info about APPSTEIN.OPTCHECKER.DLL...
Suggest you to remove the APPSTEIN.OPTCHECKER.DLL file and all related files.
APPSTEIN.OPTCHECKER.DLL is known as:
Antivirus testing: 1 / 68
Dangerous Status: Adware
Malware Aliases: PUP.Yontoo.Appstein (M).
MD5 of APPSTEIN.OPTCHECKER.DLL = 16CA871BC4AD53C13C30A881C38582F1
APPSTEIN.OPTCHECKER.DLL size is 909504 bytes.
Full path on a computer: C:\PROGRAM FILES\APPSTEIN\BIN\PLUGINS\APPSTEIN.OPTCHECKER.DLL
Tags:
APPSTEIN.OPTCHECKER.DLL PUP.YONTOO.APPSTEIN (M)
Fix it immediately!
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Your antivirus has shut itself off and you can't get it to start up again? Your search results are redirected all over the place. A lot of your folders are hidden. Random sounds are played on your laptop at random intervals (such as gunshots, etc.)
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