Avast WEBforum
Consumer Products => Avast Free Antivirus / Premium Security (legacy Pro Antivirus, Internet Security, Premier) => Topic started by: Ghost2 on April 22, 2011, 03:40:48 PM
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I'm using Avast Free Antivirus 6. After i try to open something from the 300GB hard drive, the computer crashes. Sometimes it crashes when the computer doesn't do anything. After i turn off a protection, pl. Behaviour prot. and turn if on again, the computer doesn't crash anymore until the next restart.
Can someone help?
Computer parameters:
Intel Celeron 2,4 GHz
2 GB RAM
60 GB and 300 GB hard drive
Windows xp Home SP2
Avast Free Antivirus 6.0.1091
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First thing to do: update your XP to SP3..!
asyn
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If by "crashes" you mean bluescreens - do you have any recent minidump files (with timestamps corresponding to the crashes) in C:\Windows\Minidump folder?
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No blue screen, just crash. I can move the mouse arrow, but can't do anythingelse.
The another problem is that when Avast finds a virus, the computer slows down for about 30 secons.
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Maybe you can manual dump: when the machine is in stalled state, hold down the rightmost CTRL key, and press the SCROLL LOCK key twice. This will cause a machine to 'blue-screen' and dump of memory will start.
More info: http://support.avast.com/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=71
To generate full dump instead of only kernel (or small dump), see http://www.msfn.org/board/creating-memory-dumps-t130005.html.
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Guys, first we should be sure that this is a legit XP, else many weird things can happen. ;)
asyn
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Genuine xp
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Genuine xp
Good. :)
So update to SP3.
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Already tried SP3 on another computer. After the install, can't connect to the internet anymore!
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Some computer works fine with SP3 but some not
PC professionals recommand not to install SP3, only for a nwely installed system.
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Some computer works fine with SP3 but some not
PC professionals recommand not to install SP3, only for a nwely installed system.
PC professionals like vulnerable computers. They get paid to remove malware. ;D
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An important thing to remember is that SP2 is no longer supported by MS.
If you have SP3 installed, support will continue 'til sometime in 2014.
Many security vulnerabilities have had patches issued since SP3 was released. It is likely you would have missed some of those, using SP2.
Update your computer to SP3. Restart when prompted. Let it take the time it needs. A second reboot might be advisable. Then, go to Windows updates. You might be surprised.
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I've installed SP3, the computer (and the internet) works, but the Avast still crashes!
What can i do?
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I've installed SP3, the computer (and the internet) works, but the Avast still crashes!
What can i do?
Try a clean install.
1. Follow instructions here: http://www.avast.com/uninstall-utility
2. Reinstall avast. http://files.avast.com/iavs5x/setup_av_free.exe
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I've reinstalled, but the problem is the same.
When i run a full system scan, some files can't be scanned (Compression bomb). What is the compression bomb?
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1. I've reinstalled, but the problem is the same.
2. When i run a full system scan, some files can't be scanned (Compression bomb). What is the compression bomb?
1. What crashes and when and how..??
2. You can ignore this.
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When i'm trying to read from the 300 GB hard drive, the computer immediately crashes.
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When i'm trying to read from the 300 GB hard drive, the computer immediately crashes.
As you don't get a BSOD.
How does it crash..? What happens..?
You can run free Mbam, to check if the system is clean. (Update it after install..!!!)
http://www.malwarebytes.org/mbam.php
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Crashes like what the OP is saying happened on my windows xp computer when i had google chrome installed. but it stopped after google chrome got removed. So basically the Crashes on your computer Could be happening from a program that you have installed.
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CoolMario, it is possible there is a program confliction, however that doesn't address the cause of it. The majority of users can run Avast and Chrome, or any other legitimate program.
I'm suspecting malware at this point.
I think an OTL log might be called for. But first, details about the system crash would be useful. As Asyn has asked. Please state "how" it crashes.
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When i'm trying to read from the 300 GB hard drive, the computer immediately crashes.
As you don't get a BSOD.
How does it crash..? What happens..?
You can run free Mbam, to check if the system is clean. (Update it after install..!!!)
http://www.malwarebytes.org/mbam.php
Just stops, doesn't do anything, just the mouse arrow moves.
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An important thing:
The crashes start only after an update.
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Do you mean it becomes unresponsive, or programs close by themselves? Does it freeze on whatever screen is up at the time? You say you still have the mouse. Can you right-click the bottom task bar when this happens and open task manager: find out what process is using most of the CPU?
If the above isn't accurate, describe more accurately what it's doing.
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Do you mean it becomes unresponsive, or programs close by themselves? Does it freeze on whatever screen is up at the time? You say you still have the mouse. Can you right-click the bottom task bar when this happens and open task manager: find out what process is using most of the CPU?
If the above isn't accurate, describe more accurately what it's doing.
It becomes unresponsive! The programs don't close, totally freeze, mouse moves, but can't click.
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The exact problems are:
When i start the computer it starts normally, but after I trying to open something from or copy to the 300 GB hard drive (simply click on its icon from the "My computer", the computer immediately crashes (unresponding). Also when i want to open the Recycle bin, this happens (maybe the recycle bin opens the 300 GB hard drive too). And sometimes crashes suddenly.
BUT when I turn off one of the parmanent protections, and try to use the 300 GB hard drive, and re-enable protection, it works correctly until the next computer restart.
The another problem is that when avast found a threat on the flash drive, the browsers (IE and Firefox) become very slow until the next computer restart, even the flash drive was removed.
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It is an external hard disk :)
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It is an external hard disk :)
Can't handle external hard drives?
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At school when I put my pen drive to the pc (ram half 512mb and OS windows Xp SP2)
Well sometimes it can open properly and sometimes it freezes when "my computer" is opened
When I close "my computer", crash...everything is gone on the screen except wallpaper and cursor.
What I do is that I remove the pen drive (Without doing safely remove might lose data) and the screen returns to normal again...
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At school when I put my pen drive to the pc (ram half 512mb and OS windows Xp SP2)
Well sometimes it can open properly and sometimes it freezes when "my computer" is opened
When I close "my computer", crash...everything is gone on the screen except wallpaper and cursor.
What I do is that I remove the pen drive (Without doing safely remove might lose data) and the screen returns to normal again...
The pendrive works fine until Avast doesn't find a threat. The computer doesn't crash because of the pendrive, just slows down the browsers.
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Actually I am wondering if your external hard disk is not overloaded...or that your computer is not reading it too slowly
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Actually I am wondering if your external hard disk is not overloaded...or that your computer is not reading it too slowly
No the hard disk isn't slow without Avast, but when Avast is turned on (after the permanent protection switched off and after switched on), writing to the hard drive is slow (halting). The HDD isn't overloaded (245 GB free)
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So the 300G hard drive is an external hard drive, then.
I recommend you try the MBAM program linked to in reply 18, first on your own computer. Run a quick scan. Have it remove anything found.
If anything was found, run a second, full scan. Remove anything found.
Reboot immediately if prompted.
Then, plug the external drive in and scan that.
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So the 300G hard drive is an external hard drive, then.
I recommend you try the MBAM program linked to in reply 18, first on your own computer. Run a quick scan. Have it remove anything found.
If anything was found, run a second, full scan. Remove anything found.
Reboot immediately if prompted.
Then, plug the external drive in and scan that.
Avast can't removes malwares?
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Mostly, Avast can, when it is detected.
MBAM is more aimed at trojans and rogues, and has a very good reputation as a demand (or resident) second scanner.
Try it.
Update it after installation. Updates are typically ~5Megs.
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Mostly, Avast can, when it is detected.
MBAM is more aimed at trojans and rogues, and has a very good reputation as a demand (or resident) second scanner.
Try it.
Update it after installation. Updates are typically ~5Megs.
Ok, I've installed, updated and run.
It found 16 Trojans! Trojan.Agent
15 exe files (in C:\Windows\Temp) and 1 registry key
But the computer still crashes because of Avast!
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Ok, I've installed, updated and run.
It found 16 Trojans! Trojan.Agent
Post the Mbam log.
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Ok, I've installed, updated and run.
It found 16 Trojans! Trojan.Agent
Post the Mbam log.
It's hungarian.
Translation to english:
Malwarebytes Anti-Malware 1.50.1.1100
www.malwarebytes.org
Database version: 6439
Windows 5.1.2600 Service packet 3
Internet Explorer 7.0.5730.11
The 2011.04.25. 17:30:55
mbam-log-2011-04-25 (17-30-55).txt
The type of an examination: Full examination (A:\|C:\|F:\|)
Examined objects: 240431
Time passed: 5 clocks, 16 minutes, 16 seconds
Infected memory processes: 0
Infected memory modules: 0
Infected system descriptor keys: 1
Infected system descriptor values: 0
Infected system descriptor data elements: 0
Infected portfolios: 0
Infected files: 15
Infected memory processes:
(Cannot be found malicious elements)
Infected memory modules:
(Cannot be found malicious elements)
Infected system descriptor keys:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Stats\{00000005-0000-0000-0000-100009000004} (Trojan.agent) -> Quarantined and deleted successfully.
Infected system descriptor values:
(Cannot be found malicious elements)
Infected system descriptor data elements:
(Cannot be found malicious elements)
Infected portfolios:
(Cannot be found malicious elements)
Infected files:
c:\WINDOWS\Temp\win14a7.tmp.exe (Trojan.Agent) -> Quarantined and deleted successfully.
c:\WINDOWS\Temp\win14c2.tmp.exe (Trojan.Agent) -> Quarantined and deleted successfully.
c:\WINDOWS\Temp\win1aa.tmp.exe (Trojan.Agent) -> Quarantined and deleted successfully.
c:\WINDOWS\Temp\win68c.tmp.exe (Trojan.Agent) -> Quarantined and deleted successfully.
c:\WINDOWS\Temp\win6e5.tmp.exe (Trojan.Agent) -> Quarantined and deleted successfully.
c:\WINDOWS\Temp\win733.tmp.exe (Trojan.Agent) -> Quarantined and deleted successfully.
c:\WINDOWS\Temp\wina34.tmp.exe (Trojan.Agent) -> Quarantined and deleted successfully.
c:\WINDOWS\Temp\wina4b.tmp.exe (Trojan.Agent) -> Quarantined and deleted successfully.
c:\WINDOWS\Temp\winad8.tmp.exe (Trojan.Agent) -> Quarantined and deleted successfully.
c:\WINDOWS\Temp\winaed.tmp.exe (Trojan.Agent) -> Quarantined and deleted successfully.
c:\WINDOWS\Temp\winc2d.tmp.exe (Trojan.Agent) -> Quarantined and deleted successfully.
c:\WINDOWS\Temp\winc40.tmp.exe (Trojan.Agent) -> Quarantined and deleted successfully.
c:\WINDOWS\Temp\wincc1.tmp.exe (Trojan.Agent) -> Quarantined and deleted successfully.
c:\WINDOWS\Temp\winccb.tmp.exe (Trojan.Agent) -> Quarantined and deleted successfully.
c:\WINDOWS\Temp\wind50.tmp.exe (Trojan.Agent) -> Quarantined and deleted successfully.
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1. Run a boot time scan with avast.
2. Run Mbam again.
If your system is clean follow step 3-6
3. Run CCleaner. http://www.piriform.com/ccleaner
4. Update your IE to version 8.
5. Run MS update.
6. Report back.
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I don't use IE!
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I don't use IE!
Your system does anyway. ;)
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I don't use IE!
Your system does anyway. ;)
Default browser is Firefox, nothing use IE
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Default browser is Firefox, nothing use IE
It doesn't matter which browser you use.
Edit: But you can skip 4., if you promise to follow 5. ;D
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I don't use IE!
Your system does anyway. ;)
Default browser is Firefox, nothing use IE
Wrong. Start reading this thread at http://forum.avast.com/index.php?topic=76891.msg637730#msg637730 (http://forum.avast.com/index.php?topic=76891.msg637730#msg637730)
Specifically, follow the links in post http://forum.avast.com/index.php?topic=76891.msg637847#msg637847 (http://forum.avast.com/index.php?topic=76891.msg637847#msg637847).
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I don't use IE!
Your system does anyway. ;)
Default browser is Firefox, nothing use IE
I see that you now have more than 20 posts which will permit you to update your profile to include signature information.
Please go to PROFILE then Modify Profile then Forum Profile Information then Please select your country: then Signature: and put information about your system just like my signature about your system just like my signature so that the helpers can offer pertinent advice.
In Account Related Settings select Hide email address from public to prevent scammers and spammers harvesting your freemail.hu email address.
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You mean a decompression bomb? ??? A decompression bomb is either a too-big file to be scanned by avast!, or it's a zip file that dumps a HUGE amount of data on your hard drive.
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You mean a decompression bomb? ??? A decompression bomb is either a too-big file to be scanned by avast!, or it's a zip file that dumps a HUGE amount of data on your hard drive.
You should quote the post of whoever this reply goes to. ;)
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You mean a decompression bomb? ??? A decompression bomb is either a too-big file to be scanned by avast!, or it's a zip file that dumps a HUGE amount of data on your hard drive.
This bomb is a file which doesn't exist, but the avast! found it.
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This bomb is a file which doesn't exist, but the avast! found it.
Forget about the decompression bomb.
That's not your machine's problem. ;)
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You mean a decompression bomb? ??? A decompression bomb is either a too-big file to be scanned by avast!, or it's a zip file that dumps a HUGE amount of data on your hard drive.
This bomb is a file which doesn't exist, but the avast! found it.
Please read this topic:
What is a decompression bomb.
http://forum.avast.com/index.php?topic=8943
See igor's answerA decompression bomb is a file that unpacks to an enormous amount of data - thus "flooding" the unpacking engine.
You still need to update to IE8.
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Some computer works fine with SP3 but some not
PC professionals recommand not to install SP3, only for a nwely installed system.
::)
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PC professionals
Professionals? Really? I can't imagine, really.
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Steps to take before you install Service pack 3 for windows xp: http://support.microsoft.com/kb/950717