Help: Avast not working

Hello,
I was hoping somebody could help me with an issue I’m having. What the deal is: I noticed that my computer has slowed down quite a bit, CPU usage is almost constantly at 100% and things take large amounts of time to open. I assumed that it might be some useless programs/toolbars soaking up RAM and causing this, but after uninstalling all of them, the problem persisted. I then thought I had a virus, so I downloaded Avast Antivirus. Everything seemed alright at first, I went through with a scan, found 1 malicious item and deleted it. However, things have only gotten worse, and I can’t even use the avast live shields. Avast console tells me It just fails to start them and after leaving the computer on for 1-2 hours, avast starts not responding and flashing until after 20 minutes it finally crashes. Please Help, I fear I may be infected with something terrible.

I’ve inculded an HJK log and an aswMBR log. Ive tried scanning with Malwarebytes, but after approximately 75000 items, it slows down to a speed where it would probably take at least a few days to finish. OTl also takes forever.

Thanks in advance,
David

Hi. HJK is dangerous to use.

Given your predictement, forgo any other scans. I will notify a remover and ask them to assist you.

Thanks, I’ll be waiting

hI,

Please download DDS and save it to your Desktop from here:
http://www.bleepingcomputer.com/download/dds/dl/104/

Double click to run the tool, click the Start button.

  • When done, DDS will open two (2) logs:
    1. DDS.txt
    2. Attach.txt

Save both reports to your desktop. DDS.txt and Attach.txt attach back to topic.

Hello,

DDS says it shouldn’t take longer than 3 minutes to complete, but has been scanning for over 10, I’ll keep watching it though.

Ok, so it finally went through. Here are the logs.

Windows explorer Just crashed btw ;D

windows Button + R
then type into the run box explorer.exe

That’ll bring the desktop back

Hi davido12345,

Uh … DDS shows that system is in real mess … I’m not sure what we can do but we will certainly gonna try.
Let’s attack immediately with ComboFix but we will use a pair of switch directives which should help him to complete the work.

Please note:

  • ComboFix may ask for reboot more then one time!
  • If you fail at first, then delete ComboFix.exe (drag&drop into recycle) and download fresh copy and re-try from Safe Mode.
  • If you get BSOD, do not be alarm, this just means that the CF’s driver has need “canceled” and thus caused the BSOD, then stop and just let me know about it.
  1. Please download ComboFix by sUBs from here and save it to your Desktop.

  1. Temporarily disable your AntiVirus program, usually via a right click on the System Tray icon. They may interfere with Combofix.
    If you are unsure how to do this please read this or this Instruction.

  2. We shall run ComboFix using initially switches …

[*] Click Start (or
http://amf.mycity.rs/pg/images/VistaStartButton.png
) then Run.

On Windows7 or Vista you may use Start Search field if Run is not available.

[*] In the line of text type in (Copy) the following:

"%userprofile%\Desktop\ComboFix.exe" /KillAll /NoMBR /StepDel 

Note that there is a space between words

[*] then click OK (or press Enter ).

This shoud run ComboFix …

[i][size=7pt]- ComboFix will display DISCLAIMER of warranty on software.
By clicking I Agree ComboFix shall continue.

  • ComboFix will check if there is a newer version of ComboFix available.
    Click Yes if prompted to download.[/size]
    -If Recovery Console is not installed, ComboFix will offer download & installation.
    Click Yes to allow ComboFix to install Recovery Console.
  • ComboFix will scan your computer in stages, total of 50 stages.
    Do not mouse-click around while ComboFix is running.
    Note:If you see a message like “Illegal operation attempted on a registry key that has been marked for deletion” just restart your computer.
    [/i]

  1. When the tool is finished, it will produce a log report for you. (typical location: C:[b]ComboFix.txt[/b] )
    Attach log reports ( ComboFix.txt) back to topic.

Allright, wish me luck

Goodluck. :wink:

Ok, the program has been scanning for over 2 hours and its stuck on stage 10. I’m on another computer at the moment so I’m not interupting the scanning. Is a very long scan like this normal? There havent been any BSODs or reboots yet.

Thanks,
Davido12345

Mine too has stopped working. I bought the Internet security 2 years ago. Computer was getting really slow, then yesterday found out that Virus protection had stopped working. The license # I saved is not a valid Avast license file, In my account I was not able to submit a ticket (got an “error occurred in script”. Tried to reset and got “AAVM subsystem not detected RDC error, FileSystem Shield provider not found”. Firewall claims to be working

Hey stubbornmom, if you’re having problems then follow the instructions in this post and start a new topic.
http://forum.avast.com/index.php?topic=53253.0

Im sure one of these talented people can surely help you :slight_smile:

sorry to barge guys. Stubbornmom, please go here: http://forum.avast.com/index.php?topic=143923.0

Attach the logs MBAM (MalwareBytes Anti-Malware/OTL & aswMBR). Follow the link Davido12345 gave you (http://forum.avast.com/index.php?topic=53253.0).

Anyone else with similar issues. Please make your own thread.

@davido12345

How is the progress? If you are not able to complete scan with ComboFix tell me, we can use alter tools.

Hello again.
What happened, is that combofix is stuck at the 48th stage and has not done anything for about an hour. Should I restart it? Also, at the begining, combofix deleted msvcr17.exe or something like that. Just thought it might be important.
Thanks so far,
David

48 stage is good stage. :smiley:

Yes, feel free to re-try. But delete old ComboFix.exe and download fresh copy.

But this time use this initial switch:

"%userprofile%\Desktop\ComboFix.exe" /KillAll /NoMBR

Umm, well the Combofix got stuck again at Stage 48, I dont think It will move any further.

Ok, so some patience paid off ;D. It finished and the logs are here!