Rogue:W32/SpyGuard
Classification
Category :
Malware
Type :
Rogue
Platform :
W32
Aliases :
Rogue:W32/SpyGuard, Rogue:W32/spyguard.gen!a, Trojan:​Win32/FakeSpyGuard (Microsoft)
Summary
Dishonest antivirus or antispyware software which tricks users into buying or installing it, usually by infecting a user's computer, or by pretending the computer is infected.
Removal
Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.
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 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.
Technical Details
Rogue:W32/Spyguard is a typical rogueware family. Member of this family pose as a legitimate antivirus or antispyware application, usually by copying the name and/or looks of a legitimate application.Variants in the Spyguard family are also detected with the Generic Detection, Rogue:W32/Spyguard.gen!A.
Activity
Once installed, this program scans the computer system. It then displays fake alert messages indicating the system has been compromised. To fully use the product and/or to enable its disinfection functionality, the user is required to purchase a license. A message notifying the user of the 'infections' will also frequently pop up from the System Tray.
Installation
A typical installation from this rogueware family installs component files in:
- %Program Files%\ [Name of Application]
Where [Name of Application] is the name of the legitimate program that the rogueware is pretending to be, for example, Spyware Guard or System Guard.At the same time, the following files are installed in %WinDir%:
- reged.exe
- spoolsystem.exe
- sys.com
- syscert.exe
- sysexplorer.exe
- vmreg.dll
These files are usually backups of clean system files. A file named winscenter.exe is also saved in the %System% folder.Malicious components are then installed in :
- %allusers%\Application Data\Microsoft\Internet Explorer\Dlls
Registry
A typical installation from this rogueware family will add the following registry key:
- HKEY_LOCAL_MACHINE\Software\Spyware Guard
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