Repeating Avast Web Shield blocked a harmful webpage or file

system · 2015-04-25T17:30:55.000Z

ComboFix got past step 50 then started deleteting some files and then I got a blue screen. The think the message stated that mbr.sys driver was halted with items in que. I used BlueScreenView to View the following message.

“Mini042515-03.dmp 4/25/2015 10:11:37 AM SYSTEM_SCAN_AT_RAISED_IRQL_CAUGHT_IMPROPER_DRIVER_UNLOAD 0x100000d4 0xb2add61e 0x00000002 0x00000001 0x806e7a16 hal.dll hal.dll+2a16 Hardware Abstraction Layer DLL Microsoft® Windows® Operating System Microsoft Corporation 5.1.2600.5512 (xpsp.080413-2111) 32-bit hal.dll+2a16 ntoskrnl.exe+154f93 ntoskrnl.exe+fae95 ntoskrnl.exe+fb232 C:\WINDOWS\Minidump\Mini042515-03.dmp 4 15 2600 90,112 4/25/2015 10:13:42 AM”

essexboy · 2015-04-25T18:46:25.000Z

Did the sytem reboot OK ?

Is there a log at c:\combofix.txt

system · 2015-04-26T13:28:05.000Z

Yes the system rebooted OK but blue screened again later. I have attached the Combofix.txt file.

essexboy · 2015-04-26T13:46:07.000Z

Does the blue screen reference a driver ?

Are the alerts still present

system · 2015-04-26T14:16:25.000Z

Yes the alarts are still occuring. I attached the blue screen crash list. I’m not very familar with the BlueScreen program so let me know if I provided the wronge info.

system · 2015-04-26T14:31:33.000Z

Here is the BlueScreen dump file.

system · 2015-04-26T15:01:52.000Z

Just to be clear, the Blue screen data I have sent you pertains to only the most recent crash. There are 41 crashes listed.

essexboy · 2015-04-26T15:52:18.000Z

Could you re-run combofix please, allow it to update if it asks

system · 2015-04-26T17:38:06.000Z

Here you go. No change in the problem.

essexboy · 2015-04-26T18:39:34.000Z

Could you download a fresh copy of FRST please, run the scan again but this time also tick shortcut txt
Please download Farbar Recovery Scan Tool and save it to your Desktop.

Then attach all 3 logs

system · 2015-04-27T04:40:41.000Z

Here are the FRST & Shortcut text files you requested.

system · 2015-04-27T05:43:25.000Z

I’m a little confused as to what file you wanted. Here are two files from FRST in my documents directory and one from the Desk Top directory. Is this what you requested?

essexboy · 2015-04-27T14:02:37.000Z

I am unable to locate the trigger yet

This programme will produce a zip file, could you upload that to a file sharing site for me to collect

Download AVZ tool from here to your desktop
Unzip all files to a folder on your desktop
Open the folder and double click the AVZ icon
https://dl.dropboxusercontent.com/u/73555776/avz.JPG

When the tool opens select “File” > “Standards scripts”

https://dl.dropboxusercontent.com/u/73555776/avz1.jpg

Place a tick in :

5. Update signature database

Then press “Execute selected scripts”

https://dl.dropboxusercontent.com/u/73555776/avz2.JPG

Once that has execute then
select “File” > “Standards scripts”
Place a tick in :

3. Advanced System Analysis with malware removal mode enabled

When finished look in the folder AVZ4 on your desktop
Open the LOG folder
Upload virusinfo_syscure to a file sharing site for me to collect

https://dl.dropboxusercontent.com/u/73555776/vz3.JPG

system · 2015-04-27T15:40:01.000Z

I preformed the scans and am ready to provide the log files. However, I am not familar with file sharing sites and don’t understand where you want me to upload them to. Also, do you want the zip, xml & htm versions of the virusinfo_secure files?

system · 2015-04-27T16:22:57.000Z

I think I figured out file sharing. Let me know if this works for you.

https://drive.google.com/file/d/0BwuFuigoTpS2Vk80WE50M2c5SWM/view?usp=sharing

system · 2015-04-27T16:36:24.000Z

Or perhaps this works?

https://drive.google.com/file/d/0BwuFuigoTpS2Ym5KeURoS1VtRmM/view?usp=sharing
https://drive.google.com/file/d/0BwuFuigoTpS2TlZHVTBFUmZoakE/view?usp=sharing

essexboy · 2015-04-27T16:51:05.000Z

Could you let me know if this makes a difference

FIX

Open AVZ as before
Click “File” > “Custom scripts”

https://dl.dropboxusercontent.com/u/73555776/avzfix1.png

A dialogue will open
Copy and paste the following script into the marked space then press run

https://dl.dropboxusercontent.com/u/73555776/avzfix2.JPG

Script for insertion :


begin
SetAVZGuardStatus(True);
SearchRootkit(true, true);
 DelCLSID('{FFB699E0-306A-11d3-8BD1-00104B6F7516}');
 DeleteFile('c:\051e59436ad68e9a9db4e57bce61\wgasetup.exe','32');
ExecuteSysClean;
RebootWindows(true);
end.

Ensure that you copy from begin to end

system · 2015-04-27T19:25:09.000Z

It ran and then rebooted but no change on the the alarms.

essexboy · 2015-04-28T14:14:53.000Z

The only area left to check now is the MBR

Download the latest version of TDSSKiller from here and save it to your Desktop.

[*]Doubleclick on TDSSKiller.exe to run the application

https://dl.dropbox.com/u/73555776/tdss%20start.JPG

[*]Then click on Change parameters.

https://dl.dropbox.com/u/73555776/tdss%20Change%20param.JPG

[*]Check the boxes beside Verify Driver Digital Signature, Detect TDLFS file system and Use KSN to scan objects , then click OK.

[*]Click the Start Scan button.

[*]If a suspicious object is detected, the default action will be Skip, click on Continue.

https://dl.dropbox.com/u/73555776/tdss%20threat.JPG

[*]If malicious objects are found, they will show in the Scan results and offer three (3) options.
[*]Ensure Cure is selected, then click Continue => Reboot now to finish the cleaning process.

[*]Get the report by selecting Reports

https://dl.dropbox.com/u/73555776/tdss%20report.JPG

[*]Note: If Cure is not available, please choose Skip instead, do not choose Delete unless instructed.

Please copy and paste its contents on your next reply.

system · 2015-04-28T15:53:42.000Z

Prior to making the selections after installing the program, the program found a root bug and I clicked on cure. The system rebooted and I then make the selections and ran it again. I have not had any alarms after the initial reboot. Is the report in a file somewhere? I have so far been unable to copy it to send it to you.

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