Avast WEBforum
Consumer Products => Avast Free Antivirus / Premium Security (legacy Pro Antivirus, Internet Security, Premier) => Topic started by: payneardo on March 07, 2010, 05:11:48 PM
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Hi , I was downing a large file via SSL and noticed my pc ground to halt beacuse the avast ant-virus service was using 100 % CPU as soon as the download stops it is fine again ??
Any ideas on how I can fix this ??
Cheer
Dave
PS Using Avast 5 Pro :)
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Did you try using .454 ? As im not sure but Logos asked to make the scan to make less hot the processor. ;)
Edit : From Vlk your problem seem to be fixed on it.
And new in v5.0.454
- added access keys – the program can be easily now controlled via keyboard
- solved a problem with the “I only connect to the Internet using a dial up modem” update setting
- better handling of errors in case of real-time shield actions
- improved compatibility with Apple BootCamp
- improved default firewall rules
- low priority scans now use much less CPU (but run accordingly longer)
- components of the avast setup/update process are now digitally signed
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Did you try using .454 ? As im not sure but Logos asked to make the scan to make less hot the processor. ;)
I am on 5.0.418, where can i get .458 from ?? :)
as just tried an update and says I am up to date ???
Cheers
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http://forum.avast.com/index.php?topic=56551.0
He is in top of the topic that not for nothing.
But its a pre-release just to let you know.
So if u got something wrong with it that isnt listed in that thread then let them know and you will can upgrade to the next pre-release via the program. ;)
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Also to let you know that if you wanna try if its work for you then there a similar bug that users found. http://forum.avast.com/index.php?topic=56683.0
But its up to you if you wanna upgrade to that version. ;) Or you can simply wait when he is out of his pre-release.
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http://forum.avast.com/index.php?topic=56551.0
He is in top of the topic that not for nothing.
But its a pre-release just to let you know.
So if u got something wrong with it that isnt listed in that thread then let them know and you will can upgrade to the next pre-release via the program. ;)
Thanks just spotted it at the top of the forum :-[ :-[, will give it a go, thanks for your help :)
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Read my edit.
Edit : I also suggest that you hide your email from the forum if you dont want unwanted user to email you or make some spam...
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Read my edit.
Edit : I also suggest that you hide your email from the forum if you dont want unwanted user to email you or make some spam...
Thanks. Just changed my profile and I will give the update a go as not really used the sandbox much yet :)
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Your welcome mate.
Feed back if that version fixed out your problem. And if its does, mark its as [fixed in 5.0.454]
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Your welcome mate.
Feed back if that version fixed out your problem. And if its does, mark its as [fixed in 5.0.454]
will do and thanks again :)
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Did you try using .454 ? As im not sure but Logos asked to make the scan to make less hot the processor.
no, this didn't concern the resident shield but a first full manual scan when writing data to the persistence cache.
This said, for the OP's issue, if it's an ssl download, only the file system shield (as opposed to the web shield) can be scanning... just make sure that the extension(s) of the file(s) you're downloading are excluded from the file shield scope.
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aye its still not working avastAVC.exe is using btween 80 % and 100% CPU when downloading anything ???
making it impossible to use my PC whilst downloading, as soon as its finished its fine again.
Just checked task manager and it scurrently using 10,904 K memory. Wil try another download and see if that increases as well as the cpu. The memory has increased to 13,380 and cpu up to 25 but my system monitor is claiming between 80 & 100% ???
I have even stopped the web shield and file system shield and it is no better ???
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Firstly if as you say you are downloading this using SSL, e.g. HTTPS, then the web shield (running under avastSvc.exe) doesn't get involved at all as it doesn't monitor HTTPS traffic, being encrypted it cant so it doesn't attempt to do so. So there is something else in the mix.
As you mention currently in your download cpu is only 25% (is this task manager of another source for this quantity), but your system monitor (what application is this) is reporting 80-100%, surely not for the same process using only 25% ?
Having stopped the web shield and seen no difference, basically confirms what I said in paragraph 1.
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I have now taken avast off and downloads are running fine :) Not sure if I will put it back on now as my pc is running a lot quicker with a different product installed on it !!
I have a quad core processor with 64 bit windows 7 professional, so I assume that system manager wasn't reporting the CPU usage correctly as when it ws running at 100% it took an age to do anything on the PC and the fans were going mental ??? But now it is running normal again.
Thanks to everyone for your help on this issue so far :)
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Have (or did) you another Anti-Virus installed in this system, if so what was it and how did you get rid of it ?
What other security based software do you have installed, including firewall ?
How are you actually downloading this file, download manager, from a browser and https link, P2P (if so what client) or other means (whatever that might be) ?
During the download is the avast icon rotating (especially if it is indicating 100% cpu) ?
Try opening the avastUI and Real-time Shields, File System Shield so that you can monitor any activity, and try starting the download again and see if you can see what is actually being scanned ?
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Have (or did) you another Anti-Virus installed in this system, if so what was it and how did you get rid of it ?
What other security based software do you have installed, including firewall ?
How are you actually downloading this file, download manager, from a browser and https link, P2P (if so what client) or other means (whatever that might be) ?
During the download is the avast icon rotating (especially if it is indicating 100% cpu) ?
Try opening the avastUI and Real-time Shields, File System Shield so that you can monitor any activity, and try starting the download again and see if you can see what is actually being scanned ?
No only ever have 1 antivirus installed and even had ms syware defender turned off. I did have norton installed but used the norton unistaller to get rid of it :) I use the win 7 firewall as my router has a good enough firewall installed on it so dont need anothe rone:) I am using newsbin pro to download a linux iso via ssl. I have opened the shields and didn't noticed much untowards, at first it was fine so I guess one of the updates have caused this as I used to get a message saying I am downloading using SSL and it cant check them (or something like that) but never got that message anymore.
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Well getting and error message "saying I am downloading using SSL and it cant check them (or something like that)" and given the program your using newsbin pro.
Usenet NNTP newsreader that downloads and decodes binary file attachments to Usenet posts.
My guess is that this is coming through port 119 so is actually related to the Mail Shield proxy and if as you say it is using SSL, the Mail Shield wouldn't be expecting encrypted traffic and that would be what generates that error.
I don't know if changing the port in newsbin to something other than port 119 or not having port 119 set to use SSL might help.
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Well getting and error message "saying I am downloading using SSL and it cant check them (or something like that)" and given the program your using newsbin pro.
Usenet NNTP newsreader that downloads and decodes binary file attachments to Usenet posts.
My guess is that this is coming through port 119 so is actually related to the Mail Shield proxy and if as you say it is using SSL, the Mail Shield wouldn't be expecting encrypted traffic and that would be what generates that error.
I don't know if changing the port in newsbin to something other than port 119 or not having port 119 set to use SSL might help.
OK cheers, might disable the mail shield as I dont use any software on my PC just googlemail on line with gattach :)
Thanks again for all the help :)
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I'm unsure if this is related to the problem being discussed in this thread. I am using Avast 4.8, free version.
This evening, Avast began using 100% of my processor (ashDisp.exe) for several hours (and is crippling the system). I attempted to stop services with Avast, and nothing resolved it. Any attempt to kill the process or lower its priority resulted in an "Access Denied", as did attempts to user userdump.exe (as suggested here: http://forum.avast.com/index.php?topic=27122.0 (http://forum.avast.com/index.php?topic=27122.0)) to create a dump file.
Windows 7 did allow me to create a dump file from the Task Manager, but the file is 95MB, so I cannot attach it here. You can find the file here: http://nuriko.odoshi.net/ashDisp.DMP (http://nuriko.odoshi.net/ashDisp.DMP)
This is kind of a final straw situation for me, Avast has been rather unsatisfactory, and I've been running it for the better part of a year. I'll be uninstalling it now (if it will let me), but I thought I'd offer this information to you in an attempt to improve Avast.
I'll monitor the thread for replies, in case you have more questions.
Regards,
Jamie
Windows 7 Ultimate x64
Intel Core 2 Duo E6750
eVGA 790i Ultra SLi motherboard
4GB DDR3-1333 RAM
eVGA GTX 285
700GB RAID5 on a 3Ware 9650SE-4LPML (4 x 250GB Seagates)
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to be able to work out why its forcing processor to work so hard , it would be easier to diagnose if we knew what file it was scanning.
this can be viewed by opening interface where the last file scanned would be listed across the lower section of file shield page.
regards
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I tried to access the interface for 45 minutes, but it never loaded successfully. Additionally, the program would not let me uninstall it, as (I assume) its use of the processor inhibited the uninstaller from initializing.
Upon reboot, it continued whatever process it was doing. So I was forced to remove it in safe mode. Unless it left files on my computer that you can use, I'm afraid that information will be lost.
Whatever file it was, it certainly did not require several hours. The largest single file I have on my system would probably be between 10 and 15GB, and those are very few. Most "large" files would be between 1 and 5GB. Additionally, I'm running a fairly quick RAID5 on my system, so file-reads from the HDDs go rather quickly.
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Are you using the latest 5.0.454 avast version?
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No, as I mentioned, I was using 4.8. I've also uninstalled it, so no need for support necessarily. I just wanted to offer this information to you.
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I was downloading rar files in 5MB parts and like the other poster I have now taken off avast (even though I have the paid version) and trying an alternative which is working fine but monitoring it as well as just using a trial version. I did upgrade to the beta vesrion but it made no difference :( . I was using port 563 to download via SSL if it helps in anyway.