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Consumer Products => Avast Free Antivirus / Premium Security (legacy Pro Antivirus, Internet Security, Premier) => Topic started by: Nails on November 28, 2010, 02:53:48 PM

Title: Malicious URL Blocked...Help Please!!
Post by: Nails on November 28, 2010, 02:53:48 PM

Hi there, I'm struggling with a malicious URL. Avast! pops up every 5-10 minutes telling me 'malicious url blocked'.

What is strange is that it isnt doing it when I visit a new webpage, but just all the time, no matter what webpage.

It says it is found in C:\windows\explorer.exe and it also has another file, "vatnaya0.com/003.so" I have searched for this but it returns no results. Avast! and malwarebytes' dont seem to find anything.

Any help would be greatly appreciated guys!

Thanks, Nails.
Title: Re: Malicious URL Blocked...Help Please!!
Post by: Nails on November 28, 2010, 03:39:16 PM

Hi there, I'm struggling with a malicious URL. Avast! pops up every 5-10 minutes telling me 'malicious url blocked'.

What is strange is that it isnt doing it when I visit a new webpage, but just all the time, no matter what webpage.

It says it is found in C:\windows\explorer.exe and it also has another file, "vatnaya0.com/003.so" I have searched for this but it returns no results. Avast! and malwarebytes' dont seem to find anything.

Any help would be greatly appreciated guys!

Thanks, Nails.

EDIT:
Object: vatnaya0.com/003.so

Process: C:\windows\explorer.exe
Title: Re: Malicious URL Blocked...Help Please!!
Post by: DavidR on November 28, 2010, 04:01:00 PM
You have problem, either explorer.exe is infected or you have malware that is either hidden (likely) or undetected, which is using explorer.exe to connect. If my fears are correct this could be difficult to remove.

I have always blocked windows explorer.exe making outbound connections in my firewall as there should be no need for it to do so. The reason it can connect is that you can type a URL into the Address: field in windows explorer and it will open the web page, that I feel is a vulnerability and if you do that you should use your browser for that purpose.

I will try and get someone with more experience and the tools for the job to look at this topic.
Title: Re: Malicious URL Blocked...Help Please!!
Post by: essexboy on November 28, 2010, 04:05:11 PM
Hi there - first I need to see what you have

Download OTL (http://oldtimer.geekstogo.com/OTL.exe)  to your Desktop
netsvcs
%SYSTEMDRIVE%\*.exe
/md5start
explorer.exe
winlogon.exe
/md5stop
%systemroot%\*. /mp /s
CREATERESTOREPOINT




Title: Re: Malicious URL Blocked...Help Please!!
Post by: DavidR on November 28, 2010, 04:23:11 PM
Thanks for joining essexboy.
Title: Re: Malicious URL Blocked...Help Please!!
Post by: essexboy on November 28, 2010, 05:59:57 PM
Thats what I be here for  ;D
Title: Re: Malicious URL Blocked...Help Please!!
Post by: Nails on November 28, 2010, 06:00:18 PM
Hi guys, ok Essexboy I've done that, would you like me to attach extras.txt and otl.txt for you to have a look at?  
Title: Re: Malicious URL Blocked...Help Please!!
Post by: essexboy on November 28, 2010, 06:01:25 PM
Yes please
Title: Re: Malicious URL Blocked...Help Please!!
Post by: Nails on November 28, 2010, 06:02:37 PM
K
Title: Re: Malicious URL Blocked...Help Please!!
Post by: essexboy on November 28, 2010, 06:12:17 PM
OK lets start

Run OTL
THEN

Download ComboFix from one of these locations:


Link 1 (http://www.forospyware.com/sUBs/ComboFix.exe)
Link 2 (http://download.bleepingcomputer.com/sUBs/ComboFix.exe)


* IMPORTANT !!! Save ComboFix.exe to your Desktop


**Please note: If the Microsoft Windows Recovery Console is already installed, ComboFix will continue it's malware removal procedures.


(http://img.photobucket.com/albums/v706/ried7/RcAuto1.gif)


Once the Microsoft Windows Recovery Console is installed using ComboFix, you should see the following message:

(http://img.photobucket.com/albums/v706/ried7/whatnext.png)


Click on Yes, to continue scanning for malware.

When finished, it shall produce a log for you.  Please include the C:\ComboFix.txt in your next reply.
Title: Re: Malicious URL Blocked...Help Please!!
Post by: Nails on November 28, 2010, 07:29:43 PM
Okey dokey...
 ???




Title: Re: Malicious URL Blocked...Help Please!!
Post by: essexboy on November 28, 2010, 09:59:38 PM
That does not look to bad a further run to check out your MBR - What problems are you having at the moment ?

1. Please open Notepad2. Now copy/paste the entire content of the codebox below into the Notepad window:

Quote
MBR::

3. Then in the text file go to FILE > SAVE AS and in the dropdown box select SAVE AS TYPE to ALL FILES

4. Save the above as CFScript.txt

5. Then drag the CFScript.txt into ComboFix.exe as depicted in the animation below.  This will start ComboFix again.

(http://img.photobucket.com/albums/v666/sUBs/CFScriptB-4.gif)


6. After reboot, (in case it asks to reboot), please post the following reports/logs into your next reply:
Title: Re: Malicious URL Blocked...Help Please!!
Post by: Nails on November 29, 2010, 03:16:21 PM
OK the problem seems to have gone away after the original combofix and OTL runs. I shall check MBR with combofix for good measure and post results  :)
Title: Re: Malicious URL Blocked...Help Please!!
Post by: Nails on November 29, 2010, 03:45:00 PM
Here goes...
Title: Re: Malicious URL Blocked...Help Please!!
Post by: essexboy on November 29, 2010, 09:17:41 PM
Hmm it is still reporting a possible infection - but that can sometimes be a false positive.  Are you having any further problems ?
Title: Re: Malicious URL Blocked...Help Please!!
Post by: Nails on November 29, 2010, 09:59:04 PM
Haven't had any more pop-ups saying 'malicious url blocked'. A false positive?!? I dont understand that. It could be referring to a different infection, ie one that isn't causing any noticeable problems..
Title: Re: Malicious URL Blocked...Help Please!!
Post by: essexboy on November 29, 2010, 10:06:21 PM
No it is just the way that Combofix reads the MBR - if you have a recovery partition it does report that

If you are happy I will remove my tools and tidy you up - then let it run for a day or so
Title: Re: Malicious URL Blocked...Help Please!!
Post by: Nails on November 29, 2010, 10:13:05 PM
Ah ok I see.
Yes I'm happy with that, haven't had any trouble since last night so I will leave it for a few days and see what happens
Title: Re: Malicious URL Blocked...Help Please!!
Post by: essexboy on November 29, 2010, 10:18:30 PM
I will remove my tools now and give some recommendations, but I would like you to run for 24 hours or so and come back if you have any problems

 Now the best part of the day ----- Your log now appears clean  :thumbsup:

A good workman always cleans up after himself so..The following will implement some cleanup procedures as well as reset  System Restore points:

Run OTL
Click Start > Run  and copy/paste the following bolded text into the Run box and click OK:

ComboFix /Uninstall

Run OTL and hit the cleanup button.  It will remove all the programmes we have used plus itself.  MBAM can be uninstalled via control panel add/remove along with ERUNT.  But they may be useful tools to keep

We will now confirm that your hidden files are set to that, as some of the tools I use will change that

(http://users.telenet.be/bluepatchy/miekiemoes/images/javaicon.gif)   Your Java is out of date. Older versions have vulnerabilities that malware can use to infect your system. Please follow these steps to remove older version of Java components and upgrade the application. Beware it is NOT supported for use in 9x or ME and probably will not install in those systems

Upgrading Java:
SPRING CLEAN
 
Download and run Puran Disc Defragmenter (http://www.puransoftware.com/Puran-Defrag-Download.html)

Now that you are clean, to help protect your computer in the future I recommend that you get the following free programmes: It is critical to have both a firewall and anti virus to protect your system and to keep them updated.

To keep your operating system up to date visit To learn more about how to protect yourself while on the internet read our little guide  How did I get infected in the first place ? (http://www.geekstogo.com/forum/topic/225044-preventing-malware-and-safe-computing/)
Keep safe  :wave:
Title: Re: Malicious URL Blocked...Help Please!!
Post by: Nails on November 29, 2010, 10:27:12 PM
I shall indeed follow those steps. Thankyou so much for your help man. You're a star!!  ;D

I'll be back if things go wrong after leaving it running for 24 hrs...

Ciao
Title: Re: Malicious URL Blocked...Help Please!!
Post by: essexboy on November 29, 2010, 10:32:35 PM
Enjoy ;D