Author Topic: Avast got disabled even with self-defense turned on.  (Read 1193 times)

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Offline Apostolos 2

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Avast got disabled even with self-defense turned on.
« on: February 13, 2020, 03:04:56 PM »
I quit Windows Defender and switched to Avast Premium Security (yes, the paid one), in order to have a better protection. I use my pc for gaming, youtube facebook, movies etc. Today i turned on my PC, at first it gave me a warning and then rebooted. It turned on again and i noticed that avast didn't startup with the system (boot was slow by the way). I knew from the start that something was happening so i checked the programs list (screenshot 1). Avast didn't EXIST! I went to services so i can restart it. Nothing again (screenshot 2). I downloaded Malwarebytes because windows defender was also disabled. The results were amazing i had a trojian and a bitcoin miner! I will attach these so you can investigate. After malwarebytes quarantined them, avast popped up again with it's passive mode turned on, and the classic message "MY COMPUTER IS PROTECTED". So thanks avast PREMIUM for protecting my computer, i don't even know what these malware did.

*Just for testing avast, i restored a malicious file from the quarantine and scanned it with avast PREMIUM. Don't mind it was clear. (Test picture)

Offline bob3160

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Re: Avast got disabled even with self-defense turned on.
« Reply #1 on: February 13, 2020, 03:19:23 PM »
Running Avast in Passive mode means Avast is not used to protect your system but simply available as a second opinion.
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Offline Apostolos 2

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Re: Avast got disabled even with self-defense turned on.
« Reply #2 on: February 13, 2020, 03:21:13 PM »
Running Avast in Passive mode means Avast is not used to protect your system but simply available as a second opinion.
Yes i know because i had malwarebytes. But that's not my point.

Offline bob3160

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Re: Avast got disabled even with self-defense turned on.
« Reply #3 on: February 13, 2020, 03:26:44 PM »
Running Avast in Passive mode means Avast is not used to protect your system but simply available as a second opinion.
Yes i know because i had malwarebytes. But that's not my point.
What is your point? As stated, Passive mode means no protection.
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Offline Apostolos 2

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Re: Avast got disabled even with self-defense turned on.
« Reply #4 on: February 13, 2020, 03:32:09 PM »
I wrote a whole paragraph about how a Trojian disabled avast, and you tell me what is passive mode.
I mentioned that avast popped up after malwarebytes cleaned all threats, before that the malware kept it disabled.

Offline Pondus

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Re: Avast got disabled even with self-defense turned on.
« Reply #5 on: February 13, 2020, 03:38:43 PM »
Quote
*Just for testing avast, i restored a malicious file from the quarantine and scanned it with avast PREMIUM. Don't mind it was clear. (Test picture)
have you tried to upload and scan file(s) at www.virustotal.com

post link to scan result




Seems something managed to disable avast and security center notifications: PUM = Possible Unwanted Modification

see attached screenshot


« Last Edit: February 13, 2020, 03:53:45 PM by Pondus »

Offline bob3160

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Re: Avast got disabled even with self-defense turned on.
« Reply #6 on: February 13, 2020, 03:43:50 PM »
I wrote a whole paragraph about how a Trojian disabled avast, and you tell me what is passive mode.
I mentioned that avast popped up after malwarebytes cleaned all threats, before that the malware kept it disabled.
Are you saying that the Trojan changed Avast's status to passive mode?
Free avast! Security Seminar: http://bit.ly/2N1eaR2  -  Important: http://www.organdonor.gov/ -- My Web Site: http://bob3160.strikingly.com/ - Win 10 Pro v20H2 64bit, 24 Gig Ram, 1TB SSD, AvastOmni 20.7.xxx, How to Successfully Install Avast http://goo.gl/VLXdeRepair & Clean Install https://goo.gl/t7aJGq

Offline Apostolos 2

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Re: Avast got disabled even with self-defense turned on.
« Reply #7 on: February 13, 2020, 03:48:45 PM »
Quote
*Just for testing avast, i restored a malicious file from the quarantine and scanned it with avast PREMIUM. Don't mind it was clear. (Test picture)
have you tried to upload and scan file(s) at www.virustotal.com

post link to scan result




Seems something managed to disable avast? see attached screenshot



Yes and it did. That is my point. How did this happen even with its self defense turned on? And it is ridiculous because i thought it did prevent it from this action. Turns out it doesn't.
And sorry but i cleared everything malicious from the quarantine, i can't upload it to virus total.

Offline Apostolos 2

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Re: Avast got disabled even with self-defense turned on.
« Reply #8 on: February 13, 2020, 03:51:08 PM »
I wrote a whole paragraph about how a Trojian disabled avast, and you tell me what is passive mode.
I mentioned that avast popped up after malwarebytes cleaned all threats, before that the malware kept it disabled.
Are you saying that the Trojan changed Avast's status to passive mode?
No i said that malware modified the registry and disabled avast

Offline bob3160

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Re: Avast got disabled even with self-defense turned on.
« Reply #9 on: February 13, 2020, 03:53:49 PM »
I wrote a whole paragraph about how a Trojian disabled avast, and you tell me what is passive mode.
I mentioned that avast popped up after malwarebytes cleaned all threats, before that the malware kept it disabled.
Are you saying that the Trojan changed Avast's status to passive mode?
No i said that malware modified the registry and disabled avast
Thanks for the clarification.
Free avast! Security Seminar: http://bit.ly/2N1eaR2  -  Important: http://www.organdonor.gov/ -- My Web Site: http://bob3160.strikingly.com/ - Win 10 Pro v20H2 64bit, 24 Gig Ram, 1TB SSD, AvastOmni 20.7.xxx, How to Successfully Install Avast http://goo.gl/VLXdeRepair & Clean Install https://goo.gl/t7aJGq

Offline Michael (alan1998)

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Re: Avast got disabled even with self-defense turned on.
« Reply #10 on: February 14, 2020, 04:57:08 AM »
https://forum.avast.com/index.php?topic=194892.0

Follow the instructions there please.
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