Why is my computer opening a web page I haven’t asked it to?

Robert M September 17, 2013

When I leave my OC for a short time a new page opens LongFinTuna.net. I’m running windows 7 & using Google Chrome. I’ve checked my search engines, done a malware & virus scan and even uninstalled then reinstalled chrome. I’ve checked my extensions & plugins & can’t find it. How can I delete it?

  1. Alan W
    September 17, 2013 at 6:00 pm
  2. Nehad A
    September 17, 2013 at 5:14 pm

    remove all adds-on or extension about toolbars .please install one pop block extension like (AD-Block..etc) it will work. :)

  3. Jan F
    September 17, 2013 at 1:27 pm

    A Google group suggests that it is a virus/trojan that is hardly detected by AV and anti-malware software duo to regular changes.

    The following file/folders have been identified

    It doesn't seem to be related to a browser but rather having a background task running that opens the popup in your default browser.

    Your best chance is to try different virus removal tools and DON'T input any sensitive data on your computer or browser in the meantime.

    Once cleaned you should probably start changing your passwords or better, do it now on a different device.

  4. Oron J
    September 17, 2013 at 12:55 pm

    It certainly sounds like your PC (or browser) was hijacked, so follow Hovsep's suggestion in the first place.
    You may also want to check the hosts file (it's usually located in C:WindowsSystem32driversetc). You can open this file in Notepad, and you'll find that it consists of a number of lines beginning with the # character. The last few lines probably look like this:
    # localhost name resolution is handled within DNS itself.
    # localhost
    # ::1 localhost
    If you find any lines there which DO NOT begin with # (and particularly if any of the entries mention LongFinTuna), prefix the line with a # and save the file.

    This file essentially overrides the DNS system so can cause your system to be redirected to unwanted sites. On the other hand, it won't cause your system to open a web window in the first place, so your problem is more likely to be caused by a toolbar or start-up program.

  5. Hovsep A
    September 17, 2013 at 11:56 am

    do a scan and check for suspicious items like LongFinTuna.net and then use Hijackthis do delete and reboot pc.