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WiniFighter

Rogue - Antivirus

WiniFighter is reported to be a fake/ rogue security application. It creates a service named "WinIFighterSvc"  and adds and entry in the windows startup so that a process named "winifightersvc.exe" runs everytime the computer starts. You should be able to locate this service in the windows task manager. It creates several folders with its name on the computers hard disk. 

{slide=Ok Tell me more about it! } 

There are several ways a fake/rogue application may enter into your computer.

1) You may have downloaded it knowingly or unknowingly mistaking it to be something else.
2) It may have automatically downloaded while you were visiting some harmful website
3) Your computer may have a trojan virus which in turn downloads such an application.


Recently I have noticed that the malware authors are also keeping track of the removal instructions published on the internet. As soon as they think that the malware is exposed, they change the file/folder names and the locations where they are saved on the hard disk. So keeping this in mind you will require the latest information of the malware in order to be able to remove it. You can see the latest sample analysis reports on this link

If you happen to have access to the rogue/virus installer, you can submit it to threatexpert site and get it analyzed. That will help you to get the precise information about the virus.   

{/slide}{slide=Ok Tell me how I can get rid of it by just doing a system restore! }

 If you know the duration since your computer is infected, you can try to restore your computer at a prior date, that will work like a miracle in removing the infection

{/slide}{slide=Are there any free tools available! }

  • Special tools to remove a single virus or a family of virus.
  • Free Online virus scanners
  • Fully functioning antivirus/ antispyware
All these tools are listed below

{/slide}{slide=Ok Show me the steps! }

Boot in safe mode

Sometimes you will not be able to delete a file even if you find it, in that case you should boot in safe mode and then try to delete it/ them.

 Remove Processes from Task Manager 

Press Ctrl Shift Esc to open Task Manager. See in the list of the processes for a processe/s named "WiniFighterSvc.exe and winifighter.exe  select if found and press the End Process button, confirm and then close the Task Manager.

 Optionally you can use Windows Defender to see the path of a currently running program/ process and its publisher, so as to differentiate malware processes from windows genuine processes.

Removing entry from windows startup

The system configuration can be started in xp and in vista by typing msconfig in the run box/ start menu search box. In xp by clicking on Start > run . The windows startup is reversible, therefore you can check / uncheck any entry from windows startup any number of times.

After the system configuration window is open, Click on the Startup tab, that will list all the programs that are scheduled to start with windows. Expand the middle column using your mouse pointer so that you can see the full path of the program. Locate and uncheck  "WiniFighter" (look for any other suspicious names)  Press Apply , Press Close/Ok , stay in the system configuration for the next step

 Stop Windows Service

This program creates a windows service named "WiniFighter Security Service" or "WiniFighterSvc" you should stop this service prior to deleting its files and folders. In the system configuratio window, click on the Services tab, and then locate the service mentioned above , and uncheck the box in front of its name, then press Apply, press Ok. Now close the system configuration utility. At the next prompt restart the computer. 

View Hidden Files

Before you could delete WiniFighter and its associated files you need to search for them, and before doing that you need to enable to view hidden files and folders

  •  How to Enable to View Hidden Files and Folders in Windows XP
    •         How to Enable to View Hidden Files and Folders in Windows Vista

Delete Files

This rogue application creates following folders
     %CommonPrograms%\WiniFighter
     %ProgramFiles%\WiniFighter Software
     %ProgramFiles%\WiniFighter Software\WiniFighter
     %Temp%\nsi2.tmp
delete these folders if found.

(in order to delete the files in the temp folder, it will be helpful to run a temp files cleaner like CCleaner) 

%Windir% By default C:\Windows\ %System% is C:\Windows\System (Windows 95/98/Me), C:\Winnt\System32 (Windows NT/2000), or C:\Windows\System32 (Windows XP).
%CommonPrograms%  is C:\Documents and Settings\All Users\Start Menu\Programs (Windows NT/2000/XP). %ProgramFiles%  is C:\Program Files.
%Temp% is C:\Documents and Settings\[UserName]\Local Settings\Temp\ (Windows NT/2000/XP).

 Run CCleaner

After deleting WiniFighter and its associated files , as there will be leftover entries in the windows regitry. CCleaner is a free temp files/registry cleaner, that will automatically clean the registry as well as remove the temp files . Click here to read more

 

 Edit Registry

if you are comfortable in using the regedit command.  You can find a list of all the registry modifications done by this rogue on this link.

{/slide} {slide=What if I have other problems!}

If you are unable to open Task Manager, registry editor, system restore, Folder Options etc

If the virus has disabled them. There are free tools and techniques to solve this problem.  They are listed here.

Tools for Windows XP

Tools for Windows Vista

Use the system file checker

If you want to make sure that the windows system files are not altered by the virus, and in case if they are altered then to repair them.

  •  How to run System File checker utility in windows XP
    •          How to run System File checker utility in windows Vista

Unable to access security related sites

It can happen if your Hosts file has been altered. To repair/ edit the hosts file. Login as administrator. open the following file in notepad
C:\ WINDOWS \system32 \drivers \etc \hosts
remove anything other than 127.0.0.1 Localhost, and save and close the file.

Using Firewall

Check your firewall for any suspicious communication from your computer to the internet and block it using firewall.   Reprinted with permission from ThreatExpert {/slide}

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To make things easier, I will help you to find out viruses on your computer. To do that, You can send me a Hijackthis log.

Hijackthis is a free tool for Windows from TrendMicro. Download/install and run it, that will create a text file called hijackthis.log You can save this file on your hard disk.

You can mail it to me on support(at)comprolive.com Or you can post it in the forum on this site

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