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Saturday, November 7, 2009

Removing Bar311.exe virus

Bar311.exe virus or winzip123 includes the these files: bar311.exe, password_viewer.exe, photos.zip.exe and pc-off.bat. The pc-off.bat contains the syntax "C:/path/shutdown -s -f -t 2 -c" which automatically shutdown your computer when you run the cmd.exe or command.
Process to manual removal
1. run the task manager by clicking Ctrl+Alt+Del or rightclick on the taskbar and click task manager. In the Process tab click on the following and click end process buttong: password_viewer.exe or bar311.exe or photos.zip.exe

2. Edit the registry by cliking Start then Run then type regedit then press enter or ok. The registry editor should appear.
In the registry editor you can see the following:
HKEY_CLASEES_ROOTHKEY_CURRENT_USER
HKEY_LOCAL_MACHINE
HKEY_USERS HKEY_CURRENT_CONFIG
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]

"Userinit"="userinit.exe,bar311.exe" -> remove ", bar311.exe" only.
[HKEY_CURRENT_USER\Software\Microsoft\Windows\ CurrentVersion\Explorer\Advanced]

Delete the following by pressing delete or rightcick then click delete...
"Hidden"=dword:00000001
"HideFileExt"=dword:00000000
"ShowSuperHidden"=dword:00000001
[HKEY_CURRENT_USER\Software\Microsoft\Command Processor] "autorun"="c:\Windows\pc-off.bat" -> remove
"c:\Windows\pc-off.bat" or delete the autorun key
3. On your flash disk or thumb drive rightclick the thumbdrive icon and click on open or on the navagation toolbar just type the thumbdrive ex. f: or e: to avoid triggering the autorun.inf then delete autorun.inf and password_viewer.exe or bar311.exe.
4. Open notepad and type this following;
@echo off
del /a /f
c:\Windows\bar311.exe
del /a /f
c:\Windows\password_viewer.exe
del /a /f
c:\Windows\photos.zip.exe
del /a /f
c:\Windows\pc-off.bat
pause
save this as a batch file, any name with a .bat extension ex. delete.bat
In saving the file, on the save as type instead of Text Documents (*.txt) change it to all files before saving the batch file.

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