Good Morning all,
am having problems with DNS. am able to release and renew
ip address, gets DNS server address's fine. but when
trying to ping by www am unable to, but when pinging by IP
address is able to ping. example, cannot ping
www.yahoo.com
but can ping by its ip address. any suggestions>?
Joe,
I'd suspect either LSP / Winsock corruption, or dns hijack.
<
http://support.microsoft.com/?kbid=811259>
LSP-Fix and WinsockLSPFix <
http://www.cexx.org/lspfix.htm>
Search your entire system drive, including hidden and system folders, for file
"hosts". There is one legit copy, in C:\WINDOWS\system32\drivers\etc\. The
others are possibly bogus, and part (but just part) of the problem. Examine the
contents of each copy found, using Notepad. (HINT: Scroll to the end of each
Hosts file, by hitting Ctrl-End, then back up to the top, page by page, before
deciding that the file is empty. Look out for blank lines at the beginning and
end of the file, after localhost, placed there by an exploit!)
Now check for, and learn to defend against, additional problems.
Start by downloading each of the following free tools:
CWShredder <
http://www.majorgeeks.com/download4086.html>
CoolWWWSearch.SmartSearch (v1/v2) MiniRemoval
<
http://www.safer-networking.org/minifiles.html>
HijackThis <
http://www.majorgeeks.com/download.php?det=3155>
LSP-Fix and WinsockLSPFix <
http://www.cexx.org/lspfix.htm>
Spybot S&D <
http://www.safer-networking.org/index.php?page=download>
Create a separate folder for HijackThis, such as C:\HijackThis - copy the
downloaded file there. Spybot S&D has an install routine - run it. The other
downloaded programs can be copied into any convenient folder.
Start by closing all Internet Explorer and Outlook windows, and running
CoolWebSearchSmartKiller, then CWShredder. Have the latter fix all.
Next, run Spybot S&D. First update it ("Search for updates"), then run a scan
("Check for problems"). Trust Spybot, and delete everything ("Fix Problems")
that is displayed in Red.
Then, run HijackThis ("Scan"). Do NOT make any changes immediately. Save the
HJT Log.
<
http://forums.spywareinfo.com/index.php?showtopic=227>
Finally, have your HJT log interpreted by experts at one or more of the
following forums (and post it, or a link to your forum post, here):
<
http://forums.net-integration.net/>
<
http://forums.spywareinfo.com/>
<
http://spywarewarrior.com/index.php>
<
http://forums.tomcoyote.org/>
<
http://www.wilderssecurity.com/>
If removal of any spyware affects your ability to access the internet (some
spyware builds itself into the network software, and its removal may damage your
network), run LSP-Fix and / or WinsockXPFIx.
Cheers,
Chuck
Paranoia comes from experience - and is not necessarily a bad thing.
