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When I type in www.yahoo.com on the address bar, it loads some page with random pop ups and spurious links. It was working well all along till yesterday. Other sites like gmail, facebook load and no issues there. I tried to ping www.yahoo.com and it responded well. Assuming DNS not to be the problem, can anyone please help me solve this issue.

EDIT: Not only yahoo.com, but microsoft.com is also getting redirected to Hosts file does not have any weird entry.

Thanks a lot, Trinity.

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You did not rule out DNS issues. What was the output of ping yahoo.com? –  iglvzx Jan 21 '12 at 19:27
Pinging yahoo.com [] with 32 bytes of data: Reply from bytes=32 time=242ms TTL=50 Reply from bytes=32 time=241ms TTL=50 Reply from bytes=32 time=240ms TTL=50 Reply from bytes=32 time=239ms TTL=50 Ping statistics for Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 239ms, Maximum = 242ms, Average = 240ms –  trinity Jan 21 '12 at 19:29
Thank you. That is not an IP address for Yahoo. –  iglvzx Jan 21 '12 at 19:35
Oh, is it some malware ? I've heard about "googleads.g.doubleclick.net" that causes such diversions..Warnings in "Inspect Element" say "Unsafe JavaScript attempt to access frame with URL in.yahoo.com from frame with URL Domains, protocols and ports must match." –  trinity Jan 21 '12 at 19:39
Now, even microsoft.com is getting redirected !! –  trinity Jan 21 '12 at 19:55

3 Answers 3

From the comments, it sounds like something is messing with DNS entries or your hosts file.

The easiest to check will be the hosts file. Open the run dialog (Start->Run) and type:

c:\windows\notepad.exe c:\windows\system32\drivers\etc\hosts

This will open your hosts file in Notepad. Look for entries in it such as:        yahoo.com
xxx.xxx.xxx.xxx      microsoft.com

etc. If there are entries like that there, then that explains the redirection and means that something (such as spyware/malware) is messing with the file.

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you beat me to it, i'll have to be more careful with when I time when to have a scratch, I needed two hands –  barlop Jan 21 '12 at 20:44
There were no entries like that.. –  trinity Jan 22 '12 at 5:02
@trinity - Clearly you have malware. points to a block in the Ukraine. –  skub Jan 22 '12 at 5:22
I tried setting DNS ips as : and when i pinged for yahoo.com from cmd prompt, got replies from But when i did the same via chrome browser, it got redirected to this malware page. Should I try resetting the modem ?.. –  trinity Jan 22 '12 at 6:01
It's most likely a rootkit, so a system restore is your best option, or you could try turning off any unknown startup processes using msconfig (if you don't know what should stay on and what shouldn't, I wouldnt do this). –  ekaj Jan 27 '12 at 18:14

You need to go through the steps outlined in the community wiki about how to clean up a viral infection: Computer is infected by a virus or a malware, what do I do now?

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I have had this problem before - I had it with "Windows 7 Antivirus"... It wasn't the host file, I looked around forever for the problem, my virus scanner wouldn't find it (Kaspersky), etc.. so I eventually just took my computer back to a restore point. Good luck with fixing your problem.

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