Author Topic: Avastsvc high CPU on win7 since ~25aug2021  (Read 3083 times)

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Offline gmer

  • Avast team
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Re: Avastsvc high CPU on win7 since ~25aug2021
« Reply #15 on: September 04, 2021, 07:12:23 AM »
Could you attach aswAr.log

Offline avast_user321654

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Re: Avastsvc high CPU on win7 since ~25aug2021
« Reply #16 on: September 04, 2021, 06:04:01 PM »
Before i read your message, i launched two scans to test if they where functional :
- scans with 210904.2 don't hang at 0% (but yesterday they did with 210903.8)
- ... but the log you asked for has been replaced with the new ones so i can't send yesterday's log

Concerning the background protection, for this boot :
- 210903.8 was installed at boot time
- avastsvc CPU usage rose to 50% after ~10 minutes (rootkit scan it must be)
- update to 210904.2 made before or after this peek?
- i stopped/started the avastsvc via a net command
- 8 minutes later, with 210904.2 installed, avastsvc CPU usage is normal

Offline avast_user321654

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Re: Avastsvc high CPU on win7 since ~25aug2021
« Reply #17 on: September 05, 2021, 05:39:32 PM »
Three boots later, Avast 2014.9.0.2016 on Win7 SP1 with rootkit scan enabled, everything seems fine.

I guess the issue's been corrected for me.

Thanks a lot to edialchu for having alerted on the rootkit scan, to DavidR for the 8 minutes root kit scan delay, and to jaroslav.nix + gmer + the avast team for having considered our troubles !

Offline DavidR

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Re: Avastsvc high CPU on win7 since ~25aug2021
« Reply #18 on: September 05, 2021, 06:22:18 PM »
You're welcome.

Note, gmer is on the Avast Team, specialist/designer on the anti-root kit module
Windows 10 Home 64bit/ Acer Aspire F15/ Intel Core i5 7200U 2.5GHz, 8GB DDR4 memory, 256GB SSD, 1TB HDD/ avast! free 22.9.6034 (build 22.9.7554.734) UI 1.0.728/ Firefox, uBlock Origin, uMatrix/ MailWasher Pro/ Avast! Mobile Security

Offline edialechu

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Re: Avastsvc high CPU on win7 since ~25aug2021
« Reply #19 on: September 07, 2021, 04:58:59 PM »
You are welcome avast_user321654.Thanks to you for all the information and help you sent!