Author Topic: Behavior Shield keeps turning off on startup  (Read 14098 times)

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Offline JP.

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Behavior Shield keeps turning off on startup
« on: July 20, 2017, 12:18:03 AM »
Hello everyone, I've got an issue with Avast. My Behavior Shield is often turned off when I boot up my computer (I'm on Windows 7), or turns itself off shortly afterwards. I always turn it back on right away, but it worries me a bit. I've got the latest free build, I think: 17.5.2303 (build 17.5.3585.182), but it has been doing that for a few weeks now, even with previous versions. Originally, it would do it only occasionally, but now it's almost every day. I've also been getting BSODs this month (four of them, three were BAD_HEADER_POOL and one was DRIVER_IRQL_NOT_LESS_OR_EQUAL), but I'm not sure the two issues are related in any way. I've noticed that Avast does the same thing with my mother's laptop (the Behavior Shield thing, I mean, she doesn't have BSODs).

I've done a lot of different scans between now and the first time I've seen the disabling happen. Smart Scans, Complete Scans, and a bunch of scans with MalwareBytes too (Threat Scans, Custom Scans with all options enabled, Hypers Scans). Nothing ever turned up. I've even tried the Rkill software, in case it was some kind of virus or malware which hid itself from detection, but the program hasn't found anything to terminate. What should I do?

Offline Asyn

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Re: Behavior Shield keeps turning off on startup
« Reply #1 on: July 20, 2017, 05:47:57 AM »
Known issue, it should get fixed in V17.6.
Win 8.1 [x64] - Avast Premier 18.8.2356.Beta2 - CC 5.49 - MCS - EEK - FF ESR 60.3 [NS/AOS/uBO] - TB 60.3 [EM] - ACP/ASB/ASL.BC
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Offline Tanmoy

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Re: Behavior Shield keeps turning off on startup
« Reply #2 on: July 30, 2017, 11:49:38 AM »
I also have this problem in windows 10 64 bit

Offline Asyn

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Re: Behavior Shield keeps turning off on startup
« Reply #3 on: July 30, 2017, 01:19:58 PM »
I also have this problem in windows 10 64 bit
See Reply #1.
Win 8.1 [x64] - Avast Premier 18.8.2356.Beta2 - CC 5.49 - MCS - EEK - FF ESR 60.3 [NS/AOS/uBO] - TB 60.3 [EM] - ACP/ASB/ASL.BC
Deutschsprachiger Bereich -> Avast Wissenswertes (Downloads, Anleitungen & Infos): https://forum.avast.com/index.php?topic=60523

Offline bob3160

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Re: Behavior Shield keeps turning off on startup
« Reply #4 on: July 31, 2017, 11:46:46 PM »
First experience with the new Beta just released seems to confirm that this problem has been addressed and fixed.
If anything changes, I'll report back.
See the following for more information:
https://forum.avast.com/index.php?topic=206494.msg1412132#msg1412132
Free avast! Security Seminar: http://www.authorstream.com/Presentation/bob3160-1425909-protecting-yourself/    -  Important: http://www.organdonor.gov/ -- My Web Site: http://bob3160.strikingly.com/ - Win 10 Pro v1809 64bit, 8 Gig Ram, AvastFree 18.7.2354, WinPatrol, Unchecky How to Successfully Install Avast http://goo.gl/VLXdeRepair & Clean Install https://goo.gl/t7aJGq

Offline DavidRGreen

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Re: Behavior Shield keeps turning off on startup
« Reply #5 on: August 02, 2017, 12:18:32 PM »
I hope this 17.6 version is going to be released soon. This Behaviour Shield issue has been going on for quite some time now. I raised it in a post back in April.
Usually you can just turn it on when you notice that it is off, but today, it won't even turn on.

Offline Asyn

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Re: Behavior Shield keeps turning off on startup
« Reply #6 on: August 03, 2017, 05:14:28 AM »
You could try the latest beta: https://forum.avast.com/index.php?board=15
Win 8.1 [x64] - Avast Premier 18.8.2356.Beta2 - CC 5.49 - MCS - EEK - FF ESR 60.3 [NS/AOS/uBO] - TB 60.3 [EM] - ACP/ASB/ASL.BC
Deutschsprachiger Bereich -> Avast Wissenswertes (Downloads, Anleitungen & Infos): https://forum.avast.com/index.php?topic=60523

Offline PDI

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Re: Behavior Shield keeps turning off on startup
« Reply #7 on: August 03, 2017, 08:59:41 AM »
Hi DavidRGreen,

did you try to do a restart of the system if the issue persists? It looks like there was software update and the system wasn't restarted.
If you can share the idpagent.log and idpagent.log.1 from %programdata%\AVAST Software\Avast\log it'd help us to find the root cause of your problem.

Thanks,
PDI

Offline JP.

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Re: Behavior Shield keeps turning off on startup
« Reply #8 on: September 10, 2017, 12:49:43 PM »
So now that the update has been out for a while, I can say that it's definitely better, but there have been two days when I had to manually activate the behavior shield, and that worries me a bit. I've run yet another complete scan with Avast, and it found nothing, and I'm running one with MalwareBytes right now, but I highly doubt I'm going to find more than before. What could it be?

Also, completely ignore what I said about BSODs, it was indeed completely unrelated and I fixed it on my own.  :)

Offline Asyn

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Re: Behavior Shield keeps turning off on startup
« Reply #9 on: September 10, 2017, 12:55:02 PM »
So now that the update has been out for a while, I can say that it's definitely better, but there have been two days when I had to manually activate the behavior shield, and that worries me a bit.
Hi, see: https://forum.avast.com/index.php?topic=208223.msg1419124#msg1419124
Win 8.1 [x64] - Avast Premier 18.8.2356.Beta2 - CC 5.49 - MCS - EEK - FF ESR 60.3 [NS/AOS/uBO] - TB 60.3 [EM] - ACP/ASB/ASL.BC
Deutschsprachiger Bereich -> Avast Wissenswertes (Downloads, Anleitungen & Infos): https://forum.avast.com/index.php?topic=60523

Offline davbyrnes

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Re: Behavior Shield keeps turning off on startup
« Reply #10 on: October 07, 2017, 04:26:55 AM »
I've been having this same problem for months. I have version 17.7, and about 50% of my boots, I have to manually enable Behavior shield

Offline Asyn

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Re: Behavior Shield keeps turning off on startup
« Reply #11 on: October 07, 2017, 06:06:04 AM »
I've been having this same problem for months. I have version 17.7, and about 50% of my boots, I have to manually enable Behavior shield
Follow the link in Reply #9 and provide your logs.
Win 8.1 [x64] - Avast Premier 18.8.2356.Beta2 - CC 5.49 - MCS - EEK - FF ESR 60.3 [NS/AOS/uBO] - TB 60.3 [EM] - ACP/ASB/ASL.BC
Deutschsprachiger Bereich -> Avast Wissenswertes (Downloads, Anleitungen & Infos): https://forum.avast.com/index.php?topic=60523

Offline rpuglisi

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Re: Behavior Shield keeps turning off on startup
« Reply #12 on: November 05, 2017, 09:30:35 PM »
Same problem here. I've got version 17.7.2314. Very annoying.

Offline bob3160

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Re: Behavior Shield keeps turning off on startup
« Reply #13 on: November 05, 2017, 09:34:03 PM »
Same problem here. I've got version 17.7.2314. Very annoying.
It occasionally also happens to me on the latest beta.
For now, just turn it back on.
Free avast! Security Seminar: http://www.authorstream.com/Presentation/bob3160-1425909-protecting-yourself/    -  Important: http://www.organdonor.gov/ -- My Web Site: http://bob3160.strikingly.com/ - Win 10 Pro v1809 64bit, 8 Gig Ram, AvastFree 18.7.2354, WinPatrol, Unchecky How to Successfully Install Avast http://goo.gl/VLXdeRepair & Clean Install https://goo.gl/t7aJGq

Offline bob3160

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