Adware.Istbar is an adware component, which does one or more of the following:
Installs an Internet Explorer toolbar
Acts as a Home page and search hijacker
Pops up advertisements, often pornographic in nature
The existence of the file: C:\Program Files\ISTsvc\ISTsvc.exe.
The files are detected as Adware.Istbar.
Various distribution channels exist. For example, Adware.Istbar can be downloaded and installed from affiliate sites, typically pornographic in nature.
...Now i've ran ad-aware and many different spyware remover tools ... and norton. but still it says it got rid of it but it comes back up on reboot...help