Renos is a software that shows fake security warnings that are quite annoying. The aim of this software is to trick a computer user to download third-party cleaning utilities, usually anti-spyware scanners.
F-Secure Anti-Virus may not be able to remove files, identified as Renos hoax automatically. So a user's action may be required to select proper disinfection action.
If a file, detected as not-virus:Hoax.Win32.Renos is an executable with DLL or EXE extension, located in Windows, Windows System or in a root folder of C: drive, this file can be safely deleted or renamed. Here are the instructions on how to remove infected files that F-Secure Anti-Virus does not clean automatically:
Generic malware disinfection instructions can be found here:
A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:
Check for the latest database updates
First check if your F-Secure security program is using the latest detection database updates, then try scanning the file again.
Submit a sample
After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.
NOTE If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.
Exclude a file from further scanning
If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.
Note You need administrative rights to change the settings.
Typically when a Renos' executable file is run, it drops a DLL file into Windows System folder and registers it as a system component. The DLL is the main Renos component. It shows a blinking icon in System Tray and periodically (actually quite often to be annoying) shows a fake security warning:
When a user clicks on this alert, his web browser is redirected to a website that offers a cleaning utility (usually anti-adware) for download.
Renos executable file is usually dropped from certain websites that a computer user browses.