Thanks you all for your valuable time.

Undertaker:

Do you have any URL/ tutorial/ which can guide me 'How Netsky can collect the email address'? What are the various security precautions one should take ? How to remove individual email ids from that loop?

Guus:

FYI, there is no virus/adware/spyware on my machine. I had checked it quite a times. Two times from norton ( safe mode; w/o safe mode), 1 time from Trendmicro online( http://housecall.trendmicro.com). Not only this, I had run the Netsky removal tool but nothings comes out so far..

Newkid:

Is there anyway to break the loop and remove individual ids from Netsky log?

Brentlea:

Thanks for the URL. As mentioned earlier, there is nothing in the startup except Norton Antivirus but still machines take lots of time in booting.

Edit Message:

ByteWrangler:

There is nothing suspicious in HJT log nor in Spybot S and D. I already scanned the machine with them. Machine configurations are as follows:

Windows 2000 with Service Pack 4
Internet Explorer 6 with SP 1
Pentium 4 Processor having clock speed 2.1 Ghz
512 MB DDR RAM

Do you need any more detail ? Please let me know...

With Thanks !
BigZero