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Tuesday, November 9, 2010

How to remove WinAlert.exe, Commgr.exe, WinSysApp.exe

How to remove WinAlert.exe, Commgr.exe, WinSysApp.exe

WinAlert.exe, Commgr.exe, WinSysApp.exe

Last Updated on Saturday, 02 October 2010 01:04Sunday, 26 September 2010 13:55

Worm - Silly FDC

The file names WinAlert.exe, Commgr.exe, WinSysApp.exe have appeared alongwith other names in a virus analysis report. You can see it on this link

  • The installer is of about 292 KB. It is identified as
    Net-Worm.SillyFDC [PCTools]
    W32.SillyFDC [Symantec]
    Worm.Win32.AutoRun.bhhp [Kaspersky Lab]
    W32/Autorun.worm!jv [McAfee]
    W32/Autorun-BDV [Sophos]
    Worm:Win32/Autorun.WT [Microsoft]
    Worm.Win32.AutoRun [Ikarus]
  • W32.SillyFDC is a group of worms that spread by copying themselves to removable drives, to mapped drives, download files or perform other malicious activities. They typically use the AutoRun feature to infect other computers in a network
  • Creates fake Recycle Bin folder. It creates an exe file in the fake Recycle Bin.
  • It can download more harmful files from the internet and install them. A good firewall can provide some level of security. Some good freeware are ZoneAlarm Free Firewall, and Comodo Internet Security Free Edition (you can choose to install just the firewall from their security suite)

It creates WinAlert.exe, Commgr.exe, WinSysApp.exe and other files on the infected computer that you need to search and delete. You should end running processes named WinAlert.exe, Commgr.exe, WinSysApp.exe from Task Manager. And also remove the file's entries from windows startup.

warning iconStatutory Warning: It is possible that some legitimate software may be using the same file names as that of the virus files. You do not have to delete these files, if they belong to some legitimate program installed on your computer. Use Windows Defender or SysInternals Process Explorer to differentiate between them. This article is based on available information on the internet. In case of dispute, please send me a note by adding a comment at the end of this page, or mail me on support(at)comprolive.com

You can also use one of the Free online Virus scanning and removal services listed on this link

Using 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 be an easy way to undo the changes done by the virus

Boot in safe mode

Sometimes you can not delete a file. You should boot in safe mode and then try to delete it.

View Hidden Files

You need to enable to view hidden files and folders before searching.

  • How to Enable to View Hidden Files and Folders in Windows XP
  • How to Enable to View Hidden Files and Folders in Windows Vista
  • How to Enable to View Hidden Files and Folders in Windows7

Remove Processes from Task Manager

  • Press Ctrl Alt Del keys to open the Task Manager.
  • Select Processes tab. You will see a list.
  • Look for the names WinAlert.exe, Commgr.exe, WinSysApp.exe in it.
  • Select if found and press the End Process button. It will ask for your confirmation to end that process.
  • Select Yes. You can end one process at a time.

You can find out if a process in Task Manager is good or bad by using Windows Defender in XP and Vista. It shows the path of a process and its publisher. Harmful processes may be shown under Unknown Publisher in windows defender. Whereas in Windows7 you can find that out from the task manager itself

Or you can use Sysinternal's Process Explorer.

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. You can check / uncheck any entry from windows startup any number of times.

  • Open system configuration window.
  • Click on the Startup tab. You will see a list all the programs that are scheduled to start with windows.
  • Expand the middle column using your mouse pointer. That will show you the full path of the program.
  • Locate and uncheck the boxes in front of these names "WinAlert.exe, Commgr.exe, WinSysApp.exe" (also look for any other suspicious names)
  • Press Apply , Press Close/Ok , Select "restart" at the next prompt
Deleting files

The computer will restart now. Delete the following files and folders. Boot in safe mode or boot in the dos prompt if needed. You can use windows search utility to search for WinAlert.exe, Commgr.exe, WinSysApp.exe

Files
c:\Program Files\Windows Alerter\WinAlert.exe
c:\Program Files\Windows Common Files\Commgr.exe
c:\RECYCLER\X-1-5-21-1960408961-725345543-839522115-1003\WinSysApp.exe
c:\RECYCLER\X-1-5-21-1960408961-725345543-839522115-1003\bnf0342
c:\RECYCLER\X-1-5-21-1960408961-725345543-839522115-1003\info
c:\RECYCLER\X-1-5-21-1960408961-725345543-839522115-1003\wndsvc.dll
[file and pathname of the sample #1]

(We do not know the name or the location of sample #1, it could be in your default download location or on the desktop or in a Temp folder. The files and folders in the Temp folder can be automatically removed, if you use a freeware temp files/ registry cleaner software like CCleaner)

Folders
c:\Program Files
c:\Program Files\Windows Alerter
c:\Program Files\Windows Common Files
c:\RECYCLER\X-1-5-21-1960408961-725345543-839522115-1003

Registry Keys

Some of the registry keys will be automatically removed if you run Registry menu of CCleaner. For others you can see the report mentioned at the beginning of this article .

Using CCleaner

You can easily remove the files in the temp folder by running CCleaner. You can set CCleaner to run automatically each time the computer starts.

Do not forget to run CCleaner > Registry menu to remove the obsolete registry entries.

more about CCleaner on this link

Free tools to repair disabled folder options, registry, Task Manager etc

Whereas you can repair disabled Folder Options, disabled Registry Tools, disabled Task Manager, Disabled System Restore etc using these free tools

Use the System File Checker

To repair windows system files.
Posted by legi at 3:50 AM

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