Hi danna
From what i can find out about ZbThumbnail.info this is a file created by zoom browser to store thumbnail information.The thumbnail file is there so that you can view your images in programs like zoombrowser.
From Canon customer support:
The ZBThumnail.info has information pertaining to the various thumbnail
images that represent the images that are contained in your Pictures
folder.
Nothing will happen if the thumbnail file is deleted. A new one will be created the next time ZoomBrowser EX is launched.
It is not necessary to move the thumbnail file when moving images.
ZoomBrowser EX will update the thumbnail files as needed.
It is not possible to store two thumbnail files in the same folder as
they will both have the same name (one of them will need to be deleted).
Sincerely,
Technical Support Representative
----------------------
As for you question about the file in the virus chest i am unable to see what the file is.Can you write down the location and the virus name Avast has given it and post that in your next reply.
========================
Click > Start > Control Panel > Add / Remove Programs and uninstall the following programs
J2SE Runtime Environment 5.0 Update 1
J2SE Runtime Environment 5.0 Update 6
Reboot when you have remove both
======================
Go to
My Computer >Tools >Folder Options >View tab and
select Show hidden files and folders.
Uncheck the Hide protected operating system files (recommended) option. Also make sure there is no checkmark beside
Hide file extensions for known file types. Click OK.
------------------------
Delete the following Files indicated in
RED and Folders indicated in
BLUE if they still exist.
c:\program files\VVSN
=======================
Download
ATF-Cleaner by
Atribune to your desktop.
Do not run just yet,we will shortly
=======================
Your Java is out of date. Older versions have vulnerabilities that malware can use to infect your system.
Please follow these steps to remove older version Java components and update.
Updating Java:- Download the latest version of Java Runtime Environment (JRE) 6 U3.
- Scroll down to where it says "The J2SE Runtime Environment (JRE) allows end-users to run Java applications".

- Click the "Download" button to the right.
- Check the box that says: "Accept License Agreement".
- The page will refresh.
- Click on the link to download Windows Offline Installation with or without Multi-language and save to your desktop.
- Close any programs you may have running - especially your web browser.
- Then from your desktop double-click on jre-6-windowsi586-p.exe to install the newest version.
=============================
Double-click
ATF Cleaner.exe to open it
Under
Main choose:
Windows Temp
Current User Temp
All Users Temp
Cookies
Temporary Internet Files
Prefetch
Java Cache
*The other boxes are optional*
Then click the
Empty Selected button.
If you have Firefox installed:
Click
Firefox at the top and choose:
Select All
Click the
Empty Selected button.
NOTE: If you would like to keep your saved passwords, please click
NO at the prompt.
If you have
Opera installed:
Click
Opera at the top and choose:
Select All
Click the Empty Selected button.
NOTE: If you would like to keep your saved passwords, please click
NO at the prompt.
Click Exit on the Main menu to close the program.
=============================
Establish an internet connection & perform an online scan with Internet Explorer at
Kaspersky Online Scanner
Answer Yes, when prompted to install an ActiveX component.
- The program will then begin downloading the latest definition files.
- Once the files have been downloaded click on NEXT
- Locate the Scan Settings button & configure to:
- Scan using the following Anti-Virus database:
- Scan Options:
- Scan Archives
- Scan Mail Bases
- Click OK & have it scan My Computer
- Once the scan is complete, it will display if your system has been infected. It does not provide an option to clean/disinfect. We only require a report from it.
- Click the Save as Text button to save the file to your desktop so that you may post it in your next reply
* Turn off the real time scanner of any existing antivirus program while performing the online scan
Note for Internet Explorer 7 users: If at any time you have trouble with the accept button of the licence, click on the Zoom tool located at the right bottom of the IE window and set the zoom to 75 %. Once the license has been accepted, reset to 100%.
======================
Open HijackThis and click on 'Do a System Scan and save a Logfile'. Save the log file and post it here.
======================
Logs Required
Kaspersky scan log
Hijackthis log
An update on how your system is behaving.