File: thr1.chm

Location of thr1.chm and Associated Malware

Check whether thr1.chm is present in the following locations:

Windows 2000, Windows XP, Windows Server 2003 specific thr1.chm file locations:

Windows Vista, Windows Server 2008, Windows 7, Windows 8 specific thr1.chm file locations:

If you find thr1.chm file in any of these locations, your computer is very likely to be infected with the following malware:

Different Variations of thr1.chm File^

Why Is It Important to Remove Malware Files?^

It is imperative that you delete malware-associated files as soon as possible because they can be used - or are already being used - to inflict serious damage on your PC, including:

• Disrupting the normal functioning of the operating system or rendering it completely useless.
• Hijacking valuable private information (credit card numbers, passwords, PIN codes, etc.)
• Directing all your Web searches to the same unwanted or malicious sites.
• Dramatically slowing down your computer.
• Gaining total control of your PC to spread viruses and trojans and send out spam.

How to Remove thr1.chm^

1. To enable deleting the thr1.chm file, terminate the associated process in the Task Manager as follows:
   • Right-click in the Windows taskbar (a bar that appears along the bottom of the Windows screen) and select Task Manager on the menu.
   • In the Tasks Manager window, click the Processes tab.
   • On the Processes tab, select thr1.chm and click End Process.
2. Using your file explorer, browse to the file using the paths listed in Location of thr1.chm and Associated Malware.
3. Select the file and press SHIFT+Delete on the keyboard.
4. Click Yes in the confirm deletion dialog box.
5. Repeat steps 2-4 for each location listed in Location of thr1.chm and Associated Malware.

Notes:

• The deletion of thr1.chm will fail if it is locked; that is, it is in use by some application (Windows will display a corresponding message). For instructions on deleting locked files, see Deleting Locked Files.
• The deletion of thr1.chm will fail if your Windows uses the NT File System (NTFS) and you have no write rights for the file. Request your system administrator to grant you write rights for the file.

Deleting Locked Files^

You can delete locked files with the RemoveOnReboot utility. You can install the RemoveOnReboot utility from here.

After you delete a locked file, you need to delete all the references to the file in Windows registry.

To delete a locked file:

1. Right-click on the file and select Send To -> Remove on Next Reboot on the menu.
2. Restart your computer.

The file will be deleted on restart.

To remove all registry references to a thr1.chm malware file:

1. On the Windows Start menu, click Run.
2. In the Open box, type regedit and click OK. The Registry Editor window opens.
3. On the Edit menu, select Find.
4. In the Find dialog box, type thr1.chm. The name of the first found registry value referencing thr1.chm is highlighted in the right pane of the Registry Editor window.
5. Right-click the registry value name and select Delete on the menu.
6. Click Yes in the Confirm Value Delete dialog box.
7. To delete all other references to thr1.chm, repeat steps 4-6.