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Author Topic: Re: Can't use internet anymore
mportela
Can't use internet anymore
on 11/02/2009 04:29 (UTC)
I installed treewalk, however NOD32 accused a virus and I chose to ignore the 
alledged virus file install. I confess i got spooked and immediatly 
uninstaled treewalk. Now I am unable to use any internet services. Can you 
please help me restore this major problem?
Axn...

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Re: Can't use internet anymore
on 11/02/2009 08:38 (UTC)
mportela wrote:

> I installed treewalk, however NOD32 accused a virus and I chose to
> ignore the alledged virus file install. I confess i got spooked and
> immediatly uninstaled treewalk. Now I am unable to use any internet
> services. Can you please help me restore this major problem?

No problem, we can help you with that annoying false positive!

Please download this zip file and extract it to a folder on your
desktop (or where ever you like):

http://treewalkdns.com/instsrv/instsrv.zip

1. Run (or double-click) "instsrv_.cmd" (You might need to turn
   your A-V off temporarily for any of these steps)
2. Start the uninstaller again!
3. Re-install TreeWalk with your A-V off
4. Run a scan afterwards, using your A-V
5. If it detects the new version of "instsrv.exe", set your A-V
   to ignore it!
6. If this is not an option, then keep the link or zip file for
   later use too

Or, check the files with an online Virus Checker beforehand,
just to calm your nerves! This newer version from Microsoft
shouldn't create any more FPs.

OK -- this list is not perfect either, but I was in a hurry...
Personally, I say try TreeWalk -- you'll love it! 

Regards, Axn... (Delete caps and dash for reply)
- TreeWalk DNS http://treewalkdns.com/index.htm
- CF Plugins http://confetch.com/index.htm
- Forums http://forums.treewalkdns.com
- News news://news.treewalkdns.com
Axn...

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Re: Can't use internet anymore
on 11/02/2009 09:08 (UTC)
Axn... wrote:

> mportela wrote:
> 
> > I installed treewalk, however NOD32 accused a virus and I chose to
> > ignore the alledged virus file install. I confess i got spooked and
> > immediatly uninstaled treewalk. Now I am unable to use any internet
> > services. Can you please help me restore this major problem?

> No problem, we can help you with that annoying false positive!

> Please download this zip file and extract it to a folder on your
> desktop (or where ever you like):

> http://treewalkdns.com/instsrv/instsrv.zip

> 1. Run (or double-click) "instsrv_.cmd" (You might need to turn
>    your A-V off temporarily for any of these steps)
> 2. Start the uninstaller again!
> 3. Re-install TreeWalk with your A-V off
> 4. Run a scan afterwards, using your A-V
> 5. If it detects the new version of "instsrv.exe", set your A-V
>    to ignore it!
> 6. If this is not an option, then keep the link or zip file for
>    later use too

> Or, check the files with an online Virus Checker beforehand,
> just to calm your nerves! This newer version from Microsoft
> shouldn't create any more FPs.

> OK -- this list is not perfect either, but I was in a hurry...
> Personally, I say try TreeWalk -- you'll love it! 

7. IMPORTANT! Make sure you got the TreeWalk Installer from
either:

(in zip format)
http://treewalkdns.com/download/051111twdns.zip
(in exe format)
http://treewalkdns.com/tw_exe/twdns821.exe

...or the ConFetch site. If you got it from somewhere else,
please let us know from where, and save the file for us. If
this is the case, we may need to inspect it, but don't send
it us unless it is requested from you later!

Thank you...

Regards, Axn... (Delete caps and dash for reply)
- TreeWalk DNS http://treewalkdns.com/index.htm
- CF Plugins http://confetch.com/index.htm
- Forums http://forums.treewalkdns.com
- News news://news.treewalkdns.com
ObiWan

View details
Re: Can't use internet anymore
on 12/02/2009 15:52 (UTC)
> I installed treewalk, however NOD32 accused a virus and I chose
> to ignore the alledged virus file install. I confess i got spooked and
> immediatly uninstaled treewalk. Now I am unable to use any internet
> services. Can you please help me restore this major problem?

Did you uninstall treewalk regularly or did you just remove its folder
?
Also, did you allow the uninstaller to fully run or there was some
"barf"
from the A/V program which denied some operation ?

See... during installation TW sets itself as the primary and only DNS
(you'll see that looking at the network properties) so, if you
uncorrectly
uninstall it, the DNS will still be pointing to 127.0.0.1 but there will
be
"nothing" listening and answering on that address

To solve the issue you may manually reset your network properties
to point to the correct DNS server(s) and then, if you want you may
reinstall treewalk; notice also, that correctly uninstalling it will
restore
the previous DNS settings, so, usually you won't experience an issue
like the one you reported



* ObiWan

DNS "fail-safe" for Windows 2000 and 9X clients.
http://www.treewalkdns.com

Support and discussions forums/groups
http://forums.treewalkdns.com
news://news.treewalkdns.com

408 XP/2000 tweaks and tips
http://www.treewalkdns.com/tq/Tip_Quarry.htm
ObiWan

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Re: Can't use internet anymore
on 12/02/2009 15:53 (UTC)
>> I installed treewalk, however NOD32 accused a virus

Almost forgot; NOD32 probably flagged the UPX compressed
files used by TW as "suspicious" due to the fact that such a
runtime compressor is also used by malware; that's why it
popped up claiming there was an issue with TW



* ObiWan

DNS "fail-safe" for Windows 2000 and 9X clients.
http://www.treewalkdns.com

Support and discussions forums/groups
http://forums.treewalkdns.com
news://news.treewalkdns.com

408 XP/2000 tweaks and tips
http://www.treewalkdns.com/tq/Tip_Quarry.htm
Axn...

View details
Re: Can't use internet anymore
on 13/02/2009 02:29 (UTC)
ObiWan wrote:

> >> I installed treewalk, however NOD32 accused a virus
> 
> Almost forgot; NOD32 probably flagged the UPX compressed
> files used by TW as "suspicious" due to the fact that such a
> runtime compressor is also used by malware; that's why it
> popped up claiming there was an issue with TW

Yes -- UPX is awesome. It crunched the W2K ResKit version
of instsrv.exe down to 18,944 bytes from 32,256 bytes and
"instsrv.exe" still works fine! Kapersky's Online Scanner
says it's okay too.  But VirusTotal gives this for that
re-packed version (which is otherwise OK)[18,944 bytes]:

File instsrv.exe received on 02.13.2009 02:55:59 (CET)
Result: 4/39 (10.26%)

Antivirus   Version   Last Update   Result
<snipped all but the FPs>
Authentium 5.1.0.4 2009.02.13 W32/Rootkit-PX!Eldorado 
eSafe 7.0.17.0 2009.02.12 Suspicious File
F-Prot 4.4.4.56 2009.02.13 W32/Rootkit-PX!Eldorado
<### note the NOD32 result doesn't complain here>
NOD32 3849 2009.02.12 -
TrendMicro 8.700.0.1004 2009.02.12 PAK_Generic.001

http://www.virustotal.com/analisis/cc51fa231540deb7cb912840b85fc19e

The results today for TW's instsrv.exe is this [15,360 bytes]:

File instsrv.exe received on 02.13.2009 03:04:56 (CET)
Result: 17/39 (43.59%)

Antivirus   Version   Last Update   Result
<snipped all but the FPs>
a-squared 4.0.0.93 2009.02.13 Trojan-Spy.Win32.Small.ih!A2
AhnLab-V3 5.0.0.2 2009.02.12 Win-Trojan/Xema.variant
BitDefender 7.2 2009.02.13 Virtool.2041
eSafe 7.0.17.0 2009.02.12 Win32.Small.ih
Fortinet 3.117.0.0 2009.02.12 Misc/Instsrv
GData 19 2009.02.13 Virtool.2041
K7AntiVirus 7.10.628 2009.02.12 Trojan.Win32.Malware.1
McAfee 5524 2009.02.12 Generic.dx
McAfee+Artemis 5524 2009.02.12 Generic.dx
NOD32 3849 2009.02.12 probably a variant of Win32/Agent
nProtect 2009.1.8.0 2009.02.12 Trojan-Spy/W32.Small.15360.C
Sunbelt 3.2.1851.2 2009.02.12 Trojan-Downloader.Generic
Symantec 10 2009.02.13 Trojan Horse 
TheHacker 6.3.1.9.254 2009.02.12 Trojan/Spy.Small.ih
TrendMicro 8.700.0.1004 2009.02.12 TROJ_SMALLTRO.LD
VBA32 3.12.8.12 2009.02.13 Trojan-Spy.Win32.Small.ih
ViRobot 2009.2.12.1603 2009.02.12 Spyware.Small.15360

http://www.virustotal.com/analisis/a9d593c177f9726a72ada1870fe9f8ae

This is for the W2K ResKit version [32,256 bytes] and is
the version in the zip file with instsrv_.cmd:

File instsrv.exe received on 02.13.2009 03:21:25 (CET)
Result: 0/39 (0%)

http://www.virustotal.com/analisis/69c756d76218669ba22298d54f030abb

...six months ago this was even flagged by an A-V product...

Yep! They don't know how to treat the packer!!!

What do you think should be done, ObiWan?

Regards, Axn... (Delete caps and dash for reply)
- TreeWalk DNS http://treewalkdns.com/index.htm
- CF Plugins http://confetch.com/index.htm
- Forums http://forums.treewalkdns.com
- News news://news.treewalkdns.com
ObiWan

View details
Re: Can't use internet anymore
on 18/02/2009 10:00 (UTC)
> What do you think should be done, ObiWan?

well... packed or not, the instsrv is still flagged by some
product as "suspicious" just because some malware
use/used it to install itself "as a service"; so even un
upx-ing the files won't be a solution; add to this that
some of the latest worms change the DNS settings
of the machine (and the setup does that to point the
dns to the localhost) and you'll see that there isn't
so much which can be done

I think that the only thing to do would be placing a
"bigger"  note on the download page explaining
that some AVs may incorrectly flag the package as
malware




* ObiWan

DNS "fail-safe" for Windows 2000 and 9X clients.
http://www.treewalkdns.com

Support and discussions forums/groups
http://forums.treewalkdns.com
news://news.treewalkdns.com

408 XP/2000 tweaks and tips
http://www.treewalkdns.com/tq/Tip_Quarry.htm
Axn...

View details
Re: Can't use internet anymore
on 19/02/2009 04:27 (UTC)
ObiWan wrote:

> > What do you think should be done, ObiWan?

> well... packed or not, the instsrv is still flagged by some
> product as "suspicious" just because some malware
> use/used it to install itself "as a service"; so even un
> upx-ing the files won't be a solution; add to this that
> some of the latest worms change the DNS settings
> of the machine (and the setup does that to point the
> dns to the localhost) and you'll see that there isn't
> so much which can be done

OK! The (momentarily) clean one can be kept around for
emergencies.

> I think that the only thing to do would be placing a
> "bigger"  note on the download page explaining
> that some AVs may incorrectly flag the package as
> malware

Done! Here:
http://treewalkdns.com/downloads.htm#avoff
...here:
http://treewalkdns.com/faq/a-tw_newuser.htm
...and:
http://treewalkdns.com/faq/a-script_block.htm
...there!

Too big? 

Regards, Axn... (Delete caps and dash for reply)
- TreeWalk DNS http://treewalkdns.com/index.htm
- CF Plugins http://confetch.com/index.htm
- Forums http://forums.treewalkdns.com
- News news://news.treewalkdns.com
Morpheus
Re: Can't use internet anymore
on 14/02/2010 14:01 (UTC)
Disappointed will have to look elsewhere, you need to sort this trojan thing
out, Im not going to use this sofware...sorry dude
ObiWan

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Re: Can't use internet anymore
on 14/02/2010 14:11 (UTC)
> Disappointed will have to look elsewhere, you need to sort 
> this trojan thing out, Im not going to use this sofware...sorry dude

Up to you, no problem here; it's a KNOWN false positive (and
you can verify that by yourself) but if you don't feel comfortable
with that, no problem here, all in all installing or not a given s/w
on YOUR machine is (and HAS to be) YOUR choice 



* ObiWan

DNS "fail-safe" for Windows 2000 and 9X clients.
http://www.treewalkdns.com

Support and discussions forums/groups
http://forums.treewalkdns.com
news://news.treewalkdns.com

408 XP/2000 tweaks and tips
http://www.treewalkdns.com/tq/Tip_Quarry.htm