Unidentified Nasty thing

Well, for the last 2 days a nasty virus, or whatever is disturbing me a lot. Whenever I connect to internet it runs automatically and send email messages. I know this because my antivirus programs show a lot of Scanning Message small window from lowe-right screen to.....

Well I ran Task Manager and saw that a little program was running with nasty long very long names and it stops only when I end its process. I even deleted this file several times but I comes again. Antivrus does not dectect this thing.

What should I do??

[DMR]

Let's start by identifying exactly what kind of "nasties" you have:

Our usual preliminary drill:

You will need to close/quit all web browser programs and disconnect from the Internet for some of the following, so you should print out the following instructions or save them into a text file with Notepad.

1. Download the free HijackThis utility. Once downloaded, follow these instructions to install and run the program:

* Create a folder for HJT outside of any Temp/Temporary folders and move the HijackThis.exe file to that folder now. A folder such such as C:\HijackThis or C:\Spyware Tools\HijackThis will do.

* Run HijackThis, but do not have HJT fix anything yet; only have it scan your system! Once the scan is complete, the "Scan" button will turn into an option to "Save log...".

* Save the log in the folder you created for HijackThis; the saved file will be named "hijackthis.log".

2. Download ATF-Cleaner and save it to convenient location.

3. Download the free version of AVG Anti-Spyware (formerly ewido). Save the installer file to your desktop or any convenient folder.

* Run the installer, accepting the default options. Run the program once installed, click on the Update icon at the top of the main AVG window, and allow the program to download the most current components.

* Close AVG once the updates have been downloaded.

4. Reboot into Safe Mode (you get to the safe mode boot option by hitting the F8 key as your computer is starting up).

* Double-click ATF-Cleaner.exe to run the program.
- Click the Main menu option.
- Check the Select All box. (Uncheck cookies if you do not want them removed).
- Click the Empty Selected button.

If you use Firefox browser:

- Click the Firefox menu option.
- Check the Select All box. (Uncheck cookies if you do not want them removed).
- Click the Empty Selected button.
NOTE: If you would like to keep your saved passwords, click No at the prompt.
- Click Exit on the Main menu to close the program.

* Run AVG Anti-Spyware.

- Click on the "Scanner" icon just to the right of the Update icon. In the Scanner window, click on the "Settings" tab.
- Under "How to act?", click on "Recommended actions" and choose "Delete" from the resulting menu.
- All boxes under "How to scan" and "Possibly unwanted..." should be checked.
- Under "Reports", check "Automatically generate report after every scan".
- Under "What to scan", select "Scan every file".
- Click on the "Scan" tab, and then click on "Complete System Scan" to start scanning. It usually takes at least 40 minutes to complete a full scan.

Once the scan is complete, a window listing all infected objects (if any are found) will be displayed. Below the list of infected objects, make sure the Set all elements to: option is set to Delete and then click the Apply all actions button.

After the malicious items are deleted, you will be given the option to save the scan report; do that. The report is saved as a text file in the C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\Reports folder. (The actual filename is a combination of the date and time of the scan.)

5. Reboot the computer normally, open the AVG Anti-Spyware report in Windows Notepad, and Cut-N-Paste the entire contents of that report into a post in this thread; do the same for the HijackThis log. The log contents will tell us a lot about what "nasties" have crept into your system, and once we analyse the logs we can tell you what (if anything) you need to do from there.