Avast WEBforum

Other => Viruses and worms => Topic started by: REDACTED on May 23, 2015, 09:16:42 AM

Title: "Avast web shield has blocked a harmful webpage or file" pops up so many times
Post by: REDACTED on May 23, 2015, 09:16:42 AM
I keep receiving these pops up today when I used my browser. I've follow up the steps from the topic: "logs to assist in cleaning malware". Could someone solve in for me? :-\
Title: Re: "Avast web shield has blocked a harmful webpage or file" pops up so many times
Post by: Eddy on May 23, 2015, 12:35:21 PM
Unless you installed it yourself, malware has changed Chrome into a developer version making it possible to install all kind of other malware without the user noticing it.
I strongly suggest you start with removing Chrome.
Title: Re: "Avast web shield has blocked a harmful webpage or file" pops up so many times
Post by: essexboy on May 23, 2015, 12:42:24 PM
Hi you also have McAfee installed and running, one of the AV's must go :)

 Re-install Chrome

Unless you did this yourself, malware has changed your Chrome version into the Development Build. Among other things this allows malware to install any extension it wants. We need to resolve this.

1. If you have bookmarks, let's save them by exporting them - Export Bookmarks (http://support.google.com/chrome/bin/answer.py?hl=en&answer=96816)
2. Then I need you to go Google Sync (https://www.google.com/settings/chrome/sync) and sign into your account
3. Scroll down until you see the "Stop and Clear" button and click on the button. At the prompt click on "Ok"
4. Now we need to uninstall chrome via control panel .
 Note: When asked about user data or settings you must remove this also so please check the box.

THEN

CAUTION :  This fix is only valid for this specific machine, using it on another may break your computer

Open notepad and copy/paste the text in the quotebox below into it:
 
Quote
CreateRestorePoint:
HKU\S-1-5-21-2653018737-1854150015-270680250-1001\...\Run: [XIGUA] => C:\Program Files (x86)\xigua\2.12.0.5\xigua.exe --windowstate=hide source=autorun
CHR HKLM\SOFTWARE\Policies\Google: Policy restriction <======= ATTENTION
FF Plugin-x32: @xigua.com/npxgax -> C:\Program Files (x86)\xigua\2.12.0.5\npxgax.dll No File
2015-05-23 10:58 - 2015-05-23 11:00 - 00000000 ____D () C:\ProgramData\3728253618405798110
2015-05-23 10:58 - 2015-05-23 10:59 - 00000000 ____D () C:\Program Files (x86)\PriCeMinuis
2015-05-23 10:56 - 2015-05-23 10:56 - 00000000 ____D () C:\ProgramData\{aeaf0d69-bace-d85a-aeaf-f0d69bac35a6}
2014-05-24 10:27 - 2012-09-07 19:40 - 0000256 _____ () C:\ProgramData\SetStretch.cmd
2014-05-24 10:27 - 2009-07-22 18:04 - 0024576 _____ () C:\ProgramData\SetStretch.exe
2014-05-24 10:27 - 2012-09-07 19:37 - 0000103 _____ () C:\ProgramData\SetStretch.VBS
Task: {B0978C63-AE3D-4CD4-84BD-DB91ECE8B90C} - System32\Tasks\GoogleUpdateTaskMachineUA => C:\Program Files (x86)\Google\Update\GoogleUpdate.exe [2015-05-02] (Google Inc.)
Task: C:\Windows\Tasks\GoogleUpdateTaskMachineCore.job => C:\Program Files (x86)\Google\Update\GoogleUpdate.exe
Task: C:\Windows\Tasks\GoogleUpdateTaskMachineUA.job => C:\Program Files (x86)\Google\Update\GoogleUpdate.exe
Task: {278DD51D-C141-411B-9B19-A66DC11CFEDA} - System32\Tasks\GoogleUpdateTaskMachineCore => C:\Program Files (x86)\Google\Update\GoogleUpdate.exe [2015-05-02] (Google Inc.)
C:\ProgramData\{aeaf0d69-bace-d85a-aeaf-f0d69bac35a6}
Reg: reg delete HKLM\SOFTWARE\Policies\Microsoft\Windows\IPSec\Policy\Local /f
Reg: reg add HKLM\SOFTWARE\Policies\Microsoft\Windows\IPSec\Policy\Local /f
RemoveProxy:
EmptyTemp:
CMD: bitsadmin /reset /allusers

 
Save this as fixlist.txt, in the same location as FRST.exe
(https://dl.dropboxusercontent.com/u/73555776/FRSTfix.JPG)
Run FRST and press Fix
On completion a log will be generated please post that

FINALLY

Please download AdwCleaner (http://www.bleepingcomputer.com/download/adwcleaner/) by Xplode onto your desktop.