virus infected

hi i scaned my computer from nav 2003 no virus detected and then i scanned online from houscall no virus detected and then i rav online scanned the virus infected
c:\WINDOWS\Downloaded Program Files\ISTactivex.dll - TrojanDownloader:Win32/IstBar.P -> Infected
then i delted everything inside download prog~1 folder and then scan online rav and same virus infected
can any tell what's this why this virus infected showing during scanning and other virus software not detecting how to remove this
plz help

 

That is spyware. Apparently Rav has some spyware included in their definition tables, while the others do not. It could be for the simple reason that it does not meet one criteria for defining a virus. A virus duplicates itself, spyware does not, although it seems to put itself back from another file that was installed at the same time.
On IST,
http://www.pestpatrol.com/PestInfo/i/istbar.asp
http://www.pestpatrol.com/PestInfo/i/istbar_aupdate.asp
http://securityresponse.symantec.com/avcenter/venc/data/adware.istbar.html

HijackThis
SpyBot Search & Destroy
Ad-Aware

 

Look Here although I found it interesting that the few sites that recognized IsBar.P were non-English ones.

Trend should now find it and calls it TROJ_ISTBAR.D or Win32.IstBar.P and only RAV and Kaspersky recognize those names. Wonder what the other AV programs are calling it.

Any body besides me wish they would standardize the name of these blasted things?

 

hi back

finally i tried everything to solve this issues and i got it
pestprol did great work and it's nice software
thanx guys for help
here comes a pain again

 

not only viruses

There is another term for Code we don't want on our machines than Worm or Virus:

MALWARE

Any Code, that compromises my machine, starting actions without my explicit permission, is inacceptable.
(let's skip the "windows does this" discussion here, please: I know it does but that's another story)

___________________________________

Malware is:

Viruses: replication mechanism mandatory, attach their code to other files, destructive payload optional
(http://www.f-secure.com/v-descs/virus.shtml)

Worms: replication mechanism mandatory, repilcats and spread autonomously, destructive payload optional
(http://www.f-secure.com/v-descs/worm.shtml)

Jokes: do funny/annoying things with Your PC, are not destructive, but: still malware!
(http://www.f-secure.com/v-descs/joke.shtml)

Trojans: programs that run usually undetected on Your PC doing things You definitely don't want. Usually destructive.
(http://www.f-secure.com/v-descs/trojan.shtml)

Backdoors: open ports on Your PC to make it accessible by hackers.
(http://www.f-secure.com/v-descs/backdoor.shtml)

Hoaxes: chain letters with a fake virus warning. The Virus is in the peoples heads
NO AV vendor nor MS send out Virus oe Security Alerts globally. MS doesn't do this at all, AV vendors only when You subscribe to a service You usually have to pay for.
(http://www.f-secure.com/v-descs/hoax.shtml)

___________________________________


About Spyware:
Spyware is for datamining.
In some countries protection of data privacy is quite poor and datamining is fully legal.
In coutries taking this issue more serios datamining is illegal, and so is spyware that installes without notification (still a twilight zone, 'thought).

Spyware is not considered as malware because YOU installed in on Your computer.

! That's why it won't be detected by any AV !

If it is installed without notification You can complain to the vendor or about the vendor at Your authorities.

But, well: there are a lot of tools to remove Spyware. Thats maybe the easier way )