avast web shield has blocked a harmful web page or file

Viruses and worms
1

Hi,

I have seen similar posts (perhaps exact) regarding the problem I have , but I haven’t been able to figure out how to solve the problem from them. So at risk of duplicating (sorry if so)…

Everytime I open firefox I get this alert: “avast web shield has blocked a harmful web page or file”. I click further details and get the following.

URL: http://request.saferbrowsingcache.com/users/c7fcf4e4-a0df-40c3-b42e-1eb54f8196bc/extensions
Infection: URL:Mal
Process: C:\Program Files (x86)\Mozilla Firefox\firefox.exe

My computer is running not as stella as I’d like. It’s clocking up a 30 percent CPU at rest. But perhaps that is something to do with my recent installation of “Advanced system care 8”.

I have attached the malaware, aswMBR, and FRST log.

It would be great if anyone could help.

Best,
Matt

2

Malware experts will be back online tomorrow and assist you

3

Let me know if this stops the alerts

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:

CreateRestorePoint: Winlogon\Notify\SDWinLogon-x32: SDWinLogon.dll [X] Toolbar: HKLM - avast! Online Security - {318A227B-5E9F-45bd-8999-7F8F10CA4CF5} - No File Toolbar: HKLM - No Name - {CC1A175A-E45B-41ED-A30C-C9B1D7A0C02F} - No File FF user.js: detected! => C:\Users\Matt\AppData\Roaming\Mozilla\Firefox\Profiles\ezrjyj2v.default-1375647795573\user.js [2015-10-13] FF Extension: YouTube Unblocker - C:\Users\Matt\AppData\Roaming\Mozilla\Firefox\Profiles\ezrjyj2v.default-1375647795573\Extensions\youtubeunblocker@unblocker.yt [2015-08-05] FF Extension: Adblock Converter Pro - C:\Users\Matt\AppData\Roaming\Mozilla\Firefox\Profiles\ezrjyj2v.default-1375647795573\Extensions\{02a5dae7-92d1-4f27-abbb-4b9b9499d51a}.xpi [2015-07-21] FF Extension: QuickTimeWizardFree - C:\Users\Matt\AppData\Roaming\Mozilla\Firefox\Profiles\ezrjyj2v.default-1375647795573\Extensions\{1bcd46b7-5209-464c-ae99-112357b46c4d}.xpi [2015-06-24] FF HKU\S-1-5-21-808812791-3364131652-3434471583-1001\...\Firefox\Extensions: [cliqz@cliqz.com] - C:\Users\Matt\AppData\Roaming\Mozilla\Firefox\Profiles\ezrjyj2v.default-1375647795573\extensions\cliqz@cliqz.com => not found FF HKU\S-1-5-21-808812791-3364131652-3434471583-1001-{ED1FC765-E35E-4C3D-BF15-2C2B11260CE4}-0\...\Firefox\Extensions: [cliqz@cliqz.com] - C:\Users\Matt\AppData\Roaming\Mozilla\Firefox\Profiles\ezrjyj2v.default-1375647795573\extensions\cliqz@cliqz.com => not found 2015-10-12 23:43 - 2015-10-12 23:43 - 00000000 ____D C:\ProgramData\{BAF091CA-86C4-4627-ADA1-897E2621C1B0} 2015-10-03 14:14 - 2015-10-03 14:14 - 00000000 __HDC C:\ProgramData\{E2937431-E60E-4C65-BD1B-280017DB2B28} 2015-09-28 17:14 - 2015-09-28 17:14 - 00000000 __HDC C:\ProgramData\{BD761B7D-CF85-4D9F-8742-F8457E267565} 2015-09-26 18:23 - 2015-09-26 18:23 - 00000000 ____H C:\Users\Matt\AppData\Local\BIT9E12.tmp 2015-09-26 18:22 - 2015-09-26 18:22 - 00000000 _____ C:\Users\Matt\AppData\Local\{1E89042F-6817-41C6-BFB9-C5F5D4528BAB} 2015-09-24 21:44 - 2015-09-24 21:44 - 00000000 ____D C:\Users\Matt\AppData\Local\{992B3D5F-3200-460A-8C9C-BDAD6A4DE227} 2015-09-26 18:22 - 2015-09-26 18:22 - 0000000 _____ () C:\Users\Matt\AppData\Local\{1E89042F-6817-41C6-BFB9-C5F5D4528BAB} Reg: reg delete HKLM\SOFTWARE\Policies\Microsoft\Windows\IPSec\Policy\Local /f Reg: reg add HKLM\SOFTWARE\Policies\Microsoft\Windows\IPSec\Policy\Local /f Reg: Reg Delete "HKLM\SOFTWARE\Microsoft\Shared Tools\MSConfig\startupreg" /F Reg: Reg Add "HKLM\SOFTWARE\Microsoft\Shared Tools\MSConfig\startupreg" /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

THEN

Please download AdwCleaner by Xplode onto your desktop.

[*]Close all open programs and internet browsers.
[*]Double click on AdwCleaner.exe to run the tool.
[*]Click on Scan.
[*]After the scan is complete click on “Clean”
[*]Confirm each time with Ok.
[*]Your computer will be rebooted automatically. A text file will open after the restart.
[*]Please post the content of that logfile with your next answer.
[*]You can find the logfile at C:\AdwCleaner[S0].txt as well.

4

Hey,

Thank you very much. This seems to have fixed the problem and my cpu is much lower.

Thank you ever so much.

Best,
Matt

5

Subject to no further problems :slight_smile:

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:

Remove tools

Download and run Delfix
Select the options as shown

https://dl.dropboxusercontent.com/u/73555776/delfix.JPG

: Keep Java Updated :

WARNING: Java is the #1 exploited program at this time. The Department of Homeland Security recommends that computer users disable Java
See this article

I would recommend that you completely uninstall Java unless you need it to run an important software.
In that instance I would recommend that you disable Java in your browsers until you need it for that software and then enable it. (See How to diasble Java in your web browser and How to unplug Java from the browser)

If you do need to keep Java then download JavaRa
Run the programme and select Remove Java Runtime. Uninstall all versions of Java present
Once done then run it again and select Update Java runtime > Download and install Latest version

https://dl.dropboxusercontent.com/u/73555776/javara.JPG

Now that you are clean, to help protect your computer in the future I recommend that you get the following free programmes:

CryptoPrevent install this programme to lock down and prevent crypto ransome ware

https://dl.dropboxusercontent.com/u/73555776/CryptoPrevent.JPG

Malwarebytes

Update and run weekly to keep your system clean

Unchecky

Click on the link above to be taken to Unchecky.com
click the very large Download button.
click Save
Click Open folder
Right click on the Unchecky_setup and choose to Run as Administrator
Once open click the Install button.
Then click on Finish
Unchecky is now installed and will help you keep unwanted check boxes unchecked, this is a fire and forget programme :wink:

It is critical to have both a firewall and anti virus to protect your system and to keep them updated.

To learn more about how to protect yourself while on the internet read this little guide Best security practices Keep safe :wave:

6

I too would like throw my hat into the ring on this problem (see attached.) as I haven’t found a sufficient answer as well.
I uninstalled the Youtube add on in Firefox, Ran Mbam, nothing was found. I am running Firefox 38.0.5 and Avast 2014.9.0.2018 with updated definitions, but haven’t has an issue until about three weeks ago now. Only reason I had not upgraded to Firefox 41 or the newest Avast is because when I did it seemed to throw off everything else and ran kind of sluggish so I returned to FFx 38. Suggestions on how to why/how to get rid of the request.saferbrowsing.com issue?

Thanks

7

hey tekn1kal_jargon please start a new topic and follow this guide

https://forum.avast.com/index.php?topic=53253.0

then attach the logs from frst+addation and mbam
from there malware expert will help you out.

good luck