1 of 5
Danger level 9
Type: Rogue Anti-Spyware
Common infection symptoms:
  • Block exe files from running
  • Installs itself without permissions
  • Shows commercial adverts
  • System crashes
  • Cant change my homepage
  • Annoying Pop-up's

Windows Efficiency Analyzer

Windows Efficiency Analyzer might look a lot like a reliable program which is there to optimize the system’s performance. However, it is a rogue antispyware and it can bring nothing but destruction to the affected computer. Windows Efficiency Analyzer is a part of the bigger scam – there are many other rogues under the Fake Microsoft Security Essentials fraud, which even looked the same as Windows Efficiency Analyzer. So it means that one should expect the very same effects from this infection, as from its forerunners.

First of all, this rogue pretends to be a reliable security program, because it needs to convince the user that it can take care of all of the computer security problems. The user does not necessarily need to know that Windows Efficiency Analyzer IS responsible for all the threats and errors that it reports about. And everything happens because the user has not been careful enough while browsing the internet. Naturally, sometimes the creators of the rogue merely tricks the user and it does not matter how careful one is – if cyber criminals use the “blackhat SEO” technique to make the user click on the link to an infected site, then most of the time being careful might not help.

However, if one caught the infection, one must do what is in one’s power to get rid of it. Windows Efficiency Analyzer does not attack immediately. At first it sends out prompts about unknown Trojans residing in the system, and then it asks the user to perform a system scan to check for further errors. If the user follows the instructions given to him by Windows Efficiency Analyzer, soon enough the rogue is fully downloaded and installed. Then it performs a fake system scan, indicating that all the security elements in the computer have bad security rating and one must fix the errors “found” with Windows Efficiency Analyzer.

Needless to say, that these methods are employed in order to make the user pay for the non-existent service. No matter the price indicated in the purchase page, with the credit card information and the CVV2 code exposed the cyber criminals will be able to rip off a sum a lot bigger, perhaps even the full contents of the user’s bank account. It is only obvious, that one wants to avoid such consequences, so it is necessary to remove Windows Efficiency Analyzer from the system immediately. Terminating the rogue with the suggested automatic malware detector is more efficient, and it helps to ensure the system’s safety against other attacks in the future.

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How to manually remove Windows Efficiency Analyzer

Files associated with infection (Windows Efficiency Analyzer):

%AppData%\Microsoft\[random].exe

Processes to kill (Windows Efficiency Analyzer):

%AppData%\Microsoft\[random].exe

Remove registry entries (Windows Efficiency Analyzer):

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\afwserv.exe "Debugger" = 'svchost.exe'
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avastsvc.exe "Debugger" = 'svchost.exe'
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avastui.exe "Debugger" = 'svchost.exe'
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\egui.exe "Debugger" = 'svchost.exe'
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ekrn.exe "Debugger" = 'svchost.exe'
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msascui.exe "Debugger" = 'svchost.exe'
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msmpeng.exe "Debugger" = 'svchost.exe'
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