Hello Cindy!
WoW... sure, I know what "Hijack This" is, I just didn't get your acronym! Yet another I'll have to try to commit to memory, lol, in a field CHOCK FULL of acronyms (acronyms = pkzipped english, lol!).
It is a decent tool, & a GOOD supplement to those which I note above.
APK
P.S.=> The ONLY problem I have found with depending on the "std. solutions" per my post above, & now, yours? Well, not a SINGLE ONE of them (antivirus, antispyware, OR antirootkit programs all) catch, "EVERYTHING"... it's best to use a few of them (however, only keeping 1 resident (meaning running as a service or trayicon app (or, combo of both)) to get "2nd Dr.'s Opinions" on scans... thing is though, their technology? Often is QUITE weak!
Examples being folks that put their faith into the std. "antivirus + firewall" combination - once you detonate a bogus mail, or hit a site with bad javascript on it (or, in its adbanners, big news the past year now in fact that last point)?? Your std. mix of protection is NO GOOD... mainly, because apps you use now are what is being attacked (Ms-Office & IE + FireFox being PRIME examples).
I see this in paying customers, every week... especially when they ask me "How come I am being infected, if I have an antivirus + firewall" & I have to tell them about the browser they use (generally IE of some form, & how it is vulnerable by design regarding ActiveX &/or javascript + IFrames etc.) & they often do NOT keep those programs (antivirus) updated either.
Nope, "layered security" is what the "pros" in this field recommend, & I still 2nd them... I have not been infected in many years, because of the use of layered security, & I have a pal named Jack (PI by trade) who was "sucking in" around 200-300 a week of spywares/viruses!
He applied this guide, with my help (he was my "prototype user" in fact) & since that application? He has only turned up 1 since (that was 7 months or more ago now too)... & he knows HOW & WHERE he got it (YouTube, & keeping javascript on iirc) too.
It works! Yes, a bit of work, but it DOES work & well... apk