Fast and Full Scan dont work

Avast Free Antivirus / Premium Security
1

Hi everyone.

I’m a fairly new Avast user and when I try to use either the fast scan or the full system scan it stays at 0% and doesn’t get past “C:\WINDOWS\system32\svchost.exe” and the scan speed stays at 0.0 B per second. Only the boot time scan works, I’ve tried repairing Avast with the control panel but it didn’t help.
During my last boot scan it said “C:\WINDOS\system32\drivers\ndis.sys” was a virus and i cant delete it or move it to the quarantine, I don’t know if that might have something to do with it.

Thanks for the help.

2

Hi lets have a quick check

Download aswMBR.exe ( 1.8mb ) to your desktop.
Double click the aswMBR.exe to run it Click the “Scan” button to start scan

http://i1224.photobucket.com/albums/ee362/Essexboy3/aswMBR%20shots/aswMBRScan.gif

On completion of the scan click save log, save it to your desktop and post in your next reply

http://i1224.photobucket.com/albums/ee362/Essexboy3/aswMBR%20shots/aswMBRsavelog.gif

3

The scan gets stuck at “C:\WINDOWS\system32\drivers” :frowning:
Here’s the report up to that:

aswMBR version 0.9.8.986 Copyright(c) 2011 AVAST Software
Run date: 2011-09-18 15:02:42

15:02:42.703 OS Version: Windows 5.1.2600 Service Pack 2
15:02:42.703 Number of processors: 1 586 0x2C02
15:02:42.703 ComputerName: HOME UserName:
15:02:43.281 Initialize success
15:02:44.734 AVAST engine defs: 11091800
15:02:48.625 Disk 0 (boot) \Device\Harddisk0\DR0 → \Device\Ide\IdeDeviceP2T0L0-a
15:02:48.625 Disk 0 Vendor: SAMSUNG_SP0842N BH100-35 Size: 76319MB BusType: 3
15:02:50.656 Disk 0 MBR read successfully
15:02:50.656 Disk 0 MBR scan
15:02:50.656 Disk 0 Windows XP default MBR code
15:02:50.671 Disk 0 scanning sectors +156296385
15:02:50.703 Disk 0 scanning C:\WINDOWS\system32\drivers
16:49:32.609 Disk 0 MBR has been saved successfully to “C:\Documents and Settings\Fernando\Mis documentos\MBR.dat”
16:49:32.609 The log file has been saved successfully to “C:\Documents and Settings\Fernando\Mis documentos\aswMBR.txt”

4

Run the scan again, but this time try changing the AV Scan from Quickscan to None and post the complete contents of the aswMBR log.

5

As a side note: Update your XP to SP3…!!!

6

I changed the scan to Normal but it got stuck on the drivers folder, same as last time.

7

As I said try None, no scan.

8

Oh sorry, that’s what I meant. I put it in none and it still got stuck

9

Before you continue, see Reply #4…!!! :wink:

10

It isn’t advisable to do an SP update when your system may be infected, not that SP3 would have anything to do with the aswMBR hanging during the scan.

11

So it is the drivers folder that it is stopping on

Lets have a look there

Download OTL to your Desktop

[*]Double click on the icon to run it. Make sure all other windows are closed and to let it run uninterrupted.
[*]Select All Users
[*]Under the Custom Scan box paste this in
netsvcs
%SYSTEMDRIVE%*.exe
/md5start
explorer.exe
winlogon.exe
Userinit.exe
svchost.exe
/md5stop
C:\Windows\assembly\tmp\U /s
CREATERESTOREPOINT
[*]Click the Quick Scan button. Do not change any settings unless otherwise told to do so. The scan wont take long.
[*]When the scan completes, it will open two notepad windows. OTL.Txt and Extras.Txt. These are saved in the same location as OTL.
[*]Attach both logs

12

OTL gets stuck while scanning kpagffis :cry:

13

OK that is a malware driver

When you download combofix please rename it before it is run to Gotcha

Download and Install Combofix

Download ComboFix from one of the following locations:

Link 1
Link 2

VERY IMPORTANT !!! Save ComboFix.exe to your Desktop *

IMPORTANT - Disable your AntiVirus and AntiSpyware applications, usually via a right click on the System Tray icon. They may otherwise interfere with our tools. If you have difficulty properly disabling your protective programs, refer to this link here

[*]Double click on ComboFix.exe & follow the prompts.
[*]Accept the disclaimer and allow to update if it asks

http://img.photobucket.com/albums/v706/ried7/NSIS_disclaimer_ENG.png

http://img.photobucket.com/albums/v706/ried7/NSIS_extraction.png

[*]When finished, it shall produce a log for you.
[*]Please include the C:\ComboFix.txt in your next reply.

Notes:

  1. Do not mouse-click Combofix’s window while it is running. That may cause it to stall.
  2. Do not “re-run” Combofix. If you have a problem, reply back for further instructions.

Please make sure you include the combo fix log in your next reply as well as describe how your computer is running now