technical description
While JS.Trojan.Noclose may be annoying, it is not malicious.
The script has been around for years and is code used by a website to create hidden windows for
the purpose of displaying advertisements and banner ads.
Closing these windows can be difficult, because when you close one, the windows that is "hidden"
behind it is displayed.
The script can be used to create "infinite" pop-ups and is therefore regarded as malicious code
by BullGuard.
There is no malicious payload involved in this type of code and as such your system is not
endangered. BullGuard just blocks the script, thereby disallowing the hidden "annoying" window to
be displayed, when the first one is closed.
Note: Other security companies, like Symantec (Norton), have chosen not to regard
JS.Trojan.Noclose as malicious code and do not block it or inform of its presence. This is a matter
of some discussion in virus-forums. BullGuard has chosen to block it, since it may be used for
unethical marketing purposes.
Removal
The script is only executed once and has no payload, so there is nothing to remove. Just close
any pop-up windows from your browser.