Author Topic: 'Malicious URL Blocked' constantly - even when no browser open!  (Read 10924 times)

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r.a.i.n.b.o.w

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Hello,

Earlier today I did the install of the upgrade that avast had been reminding me to do for almost a month, and ever since I'm getting the bubble popping up, with the voice saying "Threat Has Been Detected" The bubble says "Malicious URL Blocked" and "avast Network Shield has blocked a harmful site", the website (which is 99.9% of the time brwxfjiypph.cm/ with lots of random letters) and that it was "URL:Mal". The bubble appears at least once a minute, even when I have no browser or programmes open. When I click on "More Details" I get a webpage basically congratulating me for using avast because it's stopped my computer crashing.

Why is this happening now, when it was fine before the upgrade - and how can I stop it? :-\

Thanks all :)

Offline Pondus

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Re: 'Malicious URL Blocked' constantly - even when no browser open!
« Reply #1 on: August 21, 2013, 12:39:59 PM »
if this happens when not doing anything.... it indicate a infection, something is trying to phone home

could you attach a screenshot of the avast warning....


follow guide here  http://forum.avast.com/index.php?topic=53253.0   and attach the requsted logs ... not copy and paste

run in order listed
AdwCleaner / Malwarebytes / OTL / aswMBR

when done removal experts will be notified and check the logs for infections, and remove them if any is found
when finish he will remove the tools used
« Last Edit: August 21, 2013, 12:41:54 PM by Pondus »

r.a.i.n.b.o.w

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Re: 'Malicious URL Blocked' constantly - even when no browser open!
« Reply #2 on: August 21, 2013, 12:41:20 PM »
Many thanks for your reply - I will get onto this right now.

judomagic

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Re: 'Malicious URL Blocked' constantly - even when no browser open!
« Reply #3 on: August 22, 2013, 08:55:26 PM »
I have the same problem but I do not understand the answer.  Can this be fixed remotely by someone I can trust.  Can Avast access my computer and fix it?  Arthur Murata

Offline essexboy

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Re: 'Malicious URL Blocked' constantly - even when no browser open!
« Reply #4 on: August 22, 2013, 09:08:05 PM »
No there is no remote connection, we analyse where the malware is and then give step by step instructions for it to be removed using a variety of automated tools

r.a.i.n.b.o.w

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Re: 'Malicious URL Blocked' constantly - even when no browser open!
« Reply #5 on: August 23, 2013, 01:09:17 PM »
Bit of a delay in replying as avast has made my PC unusable online, so have had to temporarily disable the shields while I do the scans. (Although the bubble pop-ups have pretty much stopped since I first posted)


AdwCleaner log attached

Offline essexboy

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Re: 'Malicious URL Blocked' constantly - even when no browser open!
« Reply #6 on: August 23, 2013, 02:14:59 PM »
If the alerts are still appearing could you run the OTL scan and attach here please

r.a.i.n.b.o.w

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Re: 'Malicious URL Blocked' constantly - even when no browser open!
« Reply #7 on: August 23, 2013, 02:28:41 PM »
If the alerts are still appearing could you run the OTL scan and attach here please

Will do - just working through the scans as requested by Pondus - currently waiting for MalwareBytes to finish so I can post that.

Offline essexboy

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Re: 'Malicious URL Blocked' constantly - even when no browser open!
« Reply #8 on: August 23, 2013, 02:57:53 PM »
:)

r.a.i.n.b.o.w

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Re: 'Malicious URL Blocked' constantly - even when no browser open!
« Reply #9 on: August 23, 2013, 03:19:34 PM »
Malwarebytes log attached

Offline essexboy

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Re: 'Malicious URL Blocked' constantly - even when no browser open!
« Reply #10 on: August 23, 2013, 03:29:31 PM »
There are some bad boys there which will need removing once I see them all

r.a.i.n.b.o.w

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Re: 'Malicious URL Blocked' constantly - even when no browser open!
« Reply #11 on: August 23, 2013, 03:56:42 PM »
OTL logs attatched

r.a.i.n.b.o.w

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Re: 'Malicious URL Blocked' constantly - even when no browser open!
« Reply #12 on: August 23, 2013, 03:58:04 PM »
There are some bad boys there which will need removing once I see them all

Much appreciated essexboy, just about to use aswMBR (OTL logs attached to previous post above).

Offline essexboy

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Re: 'Malicious URL Blocked' constantly - even when no browser open!
« Reply #13 on: August 23, 2013, 05:25:33 PM »
OK I can see it now

Warning This fix is only relevant for this system and no other, using on another computer may cause problems

Be advised that when the fix commences it will shut down all running processes and you may lose the desktop and icons, they will return on reboot

Run OTL
  • Under the Custom Scans/Fixes box at the bottom, paste in the following


Code: [Select]
:Commands
[CREATERESTOREPOINT]

:OTL
O3 - HKU\S-1-5-21-1893033244-659061508-1042013740-1005\..\Toolbar\WebBrowser: (no name) - {EE2AC4E5-B0B0-4EC6-88A9-BCA1A32AB107} - No CLSID value found.
O16 - DPF: {02BF25D5-8C17-4B23-BC80-D3488ABDDC6B} http://www.apple.com/qtactivex/qtplugin.cab (Reg Error: Key error.)
O16 - DPF: {33564D57-9980-0010-8000-00AA00389B71} http://codecs.microsoft.com/codecs/i386/wmv9dmo.cab (Reg Error: Key error.)
O16 - DPF: {B9191F79-5613-4C76-AA2A-398534BB8999} http://us.dl1.yimg.com/download.yahoo.com/dl/installs/suite/autocomplete.cab (Reg Error: Key error.)
O16 - DPF: {CAFEEFAC-0017-0000-0015-ABCDEFFEDCBA} http://java.sun.com/update/1.7.0/jinstall-1_7_0_15-windows-i586.cab (Reg Error: Key error.)
O16 - DPF: {D27CDB8E-AE8D-11CF-96B8-434553540000} http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab (Reg Error: Key error.)
O16 - DPF: DirectAnimation Java Classes file://C:\WINDOWS\Java\classes\dajava.cab (Reg Error: Key error.)
O16 - DPF: Microsoft XML Parser for Java file://C:\WINDOWS\Java\classes\xmldso.cab (Reg Error: Key error.)
[2011/08/04 22:01:44 | 000,000,000 | ---D | M] -- C:\Documents and Settings\All Users\Application Data\AVG10
[2011/01/08 19:00:15 | 000,000,000 | ---D | M] -- C:\Documents and Settings\All Users\Application Data\avg9
[2012/06/30 15:53:33 | 000,000,000 | ---D | M] -- C:\Documents and Settings\All Users\Application Data\CheckPoint
[2011/08/04 22:00:15 | 000,000,000 | ---D | M] -- C:\Documents and Settings\All Users\Application Data\MFAData
[2011/01/09 14:19:07 | 000,000,000 | ---D | M] -- C:\Documents and Settings\Tracey\Application Data\AVG10
[2012/06/30 16:22:36 | 000,000,000 | ---D | M] -- C:\Documents and Settings\Tracey\Application Data\CheckPoint
[2011/06/13 16:52:20 | 000,000,000 | ---D | M] -- C:\Documents and Settings\Tracey\Application Data\coupons

:Reg
[HKEY_CURRENT_USER\Software\Classes\clsid\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InProcServer32]
"" = %systemroot%\system32\wbem\fastprox.dll

:Files
C:\RECYCLER\S-1-5-18\$0b05a22fcf32a0152a983da59bbb5c40

:Commands
[resethosts]
[emptytemp]
[Reboot]
  • Then click the Run Fix button at the top
  • Let the program run unhindered, reboot the PC when it is done
  • Open OTL again and click the Quick Scan button. Post the log it produces in your next reply.
THEN

Download and Install Combofix
 
Download ComboFix from one of the following locations:
Link 1
Link 2
 
VERY IMPORTANT !!! Save ComboFix.exe to your Desktop
 
* IMPORTANT - Disable your AntiVirus and AntiSpyware applications, usually via a right click on the System Tray icon. They may otherwise interfere with our tools. If you have difficulty properly disabling your protective programs, refer to this link here
  • Double click on ComboFix.exe & follow the prompts.
  • Accept the disclaimer and allow to update if it asks




  • When finished, it shall produce a log for you.
  • Please include the C:\ComboFix.txt in your next reply.[/b]
Notes:
1. Do not mouse-click Combofix's window while it is running. That may cause it to stall.
2. Do not "re-run" Combofix. If you have a problem, reply back for further instructions.

3.  If after the reboot you get errors about programmes being marked for deletion then reboot, that will cure it.


Please make sure you include the combo fix log in your next reply as well as describe how your computer is running now

r.a.i.n.b.o.w

  • Guest
Re: 'Malicious URL Blocked' constantly - even when no browser open!
« Reply #14 on: August 23, 2013, 07:02:28 PM »
What shall I do about aswMBR? It took an hour to download, has been running for over an hour, and seems to get stuck on one folder/file for 20 minutes or more before suddenly scanning again. Is it necessary to do this scan?