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Author Topic: Port scanners from AVAST cloud detected  (Read 1321 times)

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Offline Hein1718

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Port scanners from AVAST cloud detected
« on: January 21, 2021, 10:38:38 AM »
Hello!

My Mikrotik routers detect port scanning attempts from IPs that belong to AVAST Cloud
Can anybody explain me why this happens?

Mikrotik scan detection settings: https://wiki.mikrotik.com/wiki/Drop_port_scanners
Detected AVAST IPs: 5.62.48.120 ; 5.62.40.105

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Offline Asyn

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Re: Port scanners from AVAST cloud detected
« Reply #1 on: January 21, 2021, 12:11:38 PM »
To start with, are you using any Avast software..!?
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W8.1 [x64] - Avast Free AV 23.3.8047.BC [UI.757] - Firefox ESR 102.9 [NS/uBO/PB] - Thunderbird 102.9.1
Avast-Tools: Secure Browser 109.0 - Cleanup 23.1 - SecureLine 5.18 - DriverUpdater 23.1 - CCleaner 6.01
Avast Wissenswertes (Downloads, Anleitungen & Infos): https://forum.avast.com/index.php?topic=60523.0

Offline Hein1718

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Re: Port scanners from AVAST cloud detected
« Reply #2 on: January 21, 2021, 03:43:54 PM »
No, I,m not using avast software at work. Port scanning was detected on outside (wan) interfaces of my routers in 2 offices.
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Offline Asyn

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Re: Port scanners from AVAST cloud detected
« Reply #3 on: January 21, 2021, 03:51:12 PM »
If so, it's probably a misuse of Avast VPN.
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W8.1 [x64] - Avast Free AV 23.3.8047.BC [UI.757] - Firefox ESR 102.9 [NS/uBO/PB] - Thunderbird 102.9.1
Avast-Tools: Secure Browser 109.0 - Cleanup 23.1 - SecureLine 5.18 - DriverUpdater 23.1 - CCleaner 6.01
Avast Wissenswertes (Downloads, Anleitungen & Infos): https://forum.avast.com/index.php?topic=60523.0

Offline Hein1718

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Re: Port scanners from AVAST cloud detected
« Reply #4 on: January 21, 2021, 03:57:19 PM »
Thank You for answer. Can you please explain in more detail?
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Offline Hein1718

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Re: Port scanners from AVAST cloud detected
« Reply #5 on: January 21, 2021, 03:59:14 PM »
Should I report about misuse to AVAST?
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Offline Asyn

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Re: Port scanners from AVAST cloud detected
« Reply #6 on: January 21, 2021, 04:00:54 PM »
You're welcome. If it should happen again, report back.
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W8.1 [x64] - Avast Free AV 23.3.8047.BC [UI.757] - Firefox ESR 102.9 [NS/uBO/PB] - Thunderbird 102.9.1
Avast-Tools: Secure Browser 109.0 - Cleanup 23.1 - SecureLine 5.18 - DriverUpdater 23.1 - CCleaner 6.01
Avast Wissenswertes (Downloads, Anleitungen & Infos): https://forum.avast.com/index.php?topic=60523.0
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