Hi,
I am a Premier Avast customer.
I recently received a couple of emails I thought were from reputable companies which turned out to be bogus and packed full of viruses.
Foolishly I opened the attachments; now my poor laptop, Windows 8.1, is riddled with viruses which I discovered last night when I ran a boot scan.
The viruses are as follows:
Win32:Mytob-JM, several files are infected with this,
HTML:Iframe-0V[Trj],
Win32:Injected-AZ
Several decompression bombs!
Avast cannot delete, move to chest or repair these. The only option that worked was for me to ignore them all, which is not ideal!
I would really appreciate any help anyone can give me as I am quite upset about these viruses being on my laptop and of course I have no idea what damage they can do. It is quite nerve-racking.
Thank you in advance.
Kind regards,
Alex
Next time, upload and test mail attchments at one of these places before you run them www.virustotal.com / www.metascan-online.com
To clean your computer, see instructions here https://forum.avast.com/index.php?topic=53253.0
Attach Malwarebytes and Farbar Recovery Scan Tool logs
Thank you very much. I will try everything you suggested and will revert with my findings. 
Hi,
sorry about the delay.
I downloaded All as per instructions.
I ran all the checks and my laptop started to act strangely after I downloaded Farbar; e.g. My browsers kept hanging, I couldn’t access my mail, my mouse had a life of its own, and even after 24 hours, Farbar was still running but I was getting no results. I had to force the laptop to switch off and after 4 restarts, the laptop seems to be back to normal and to my amazement there is a log of the scan results from Farbar!
Here are the results:
Many thanks in advance for your diagnosis.
Kind regards,
Hi first could you download a fresh copy of FRST as there was a minor bug in the previous version
Please download Farbar Recovery Scan Tool and save it to your Desktop.
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: URLSearchHook: [S-1-5-21-774196298-3751390035-3957293138-1002-{ED1FC765-E35E-4C3D-BF15-2C2B11260CE4}-0] ATTENTION ==> Default URLSearchHook is missing. SearchScopes: HKLM-x32 -> DefaultScope value is missing. Toolbar: HKLM - No Name - {318A227B-5E9F-45bd-8999-7F8F10CA4CF5} - No File Toolbar: HKLM - No Name - {CC1A175A-E45B-41ED-A30C-C9B1D7A0C02F} - No File 2014-12-28 09:54 - 2013-09-26 10:27 - 00000000 ___HD () C:\Users\Alex Mojee Bell\AppData\Local\xKimYsy0S1X4k 2014-12-28 09:54 - 2013-01-06 15:37 - 00000000 ___HD () C:\Users\Alex Mojee Bell\AppData\Local\CiicqsgXf 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[S1].txt as well.
Hi,
Thank you very much for the instructions.
I have done ALL as requested.
Please find the results:
Please let me know what you find / decipher.
Many thanks,
Kind regards
How is the computer behaving now ?
Actually,
so far it is behaving beautifully… as if I just got it out of the box.
I shall do the same with my desktop as it is misbehaving too.
There is one thing, which I am certain is completely unrelated to any worms or viruses, but the laptop gets so hot that I can’t even touch it but I’ll have to research a solution to that elsewhere i think.
Thank you again for your kindness. You have put a smile on my face once more. I am happy.
Warmest regards,
Alex 
:-*
If you wish you can run an FRST scan on the desktop and I will look at that for you. With regards to the laptop overheating you may need a sort of stand to allow the air to flow all round the system
Subject to no further problems
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 
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
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
Update and run weekly to keep your system clean
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 
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 