My Tp Link Deco router was hacked

Check if below steps helps you in any way.

1) Restart PC in safe mode: https://support.microsoft.com/en-us/windows/start-your-pc-in-safe-mode-in-windows-92c27cff-db89-8644-1ce4-b3e5e56fe234

2) Open run command and run below command one by one:

temp ,delete all the files in the folder

%temp% ,delete all the files in folder

prefetch ,delete all the files in folder

3) Restart your PC in general mode by unticking the option that you selected to run the system in safe mode and then click apply.

4) Reset your browsers:

Google Chrome: https://support.google.com/chrome/answer/3296214?hl=en

Mozilla Firefox: https://support.mozilla.org/en-US/kb/refresh-firefox-reset-add-ons-and-settings

Microsoft Edge: https://malwaretips.com/blogs/reset-microsoft-edge/

Opera: https://browsersolution.com/reset-opera-browser

Vivaldi: https://help.vivaldi.com/desktop/install-update/full-reset-of-vivaldi/

Brave: https://support.brave.com/hc/en-us/articles/360017903152-How-do-I-reset-Brave-settings-to-default-

5) Reset windows host file to default: https://support.microsoft.com/en-us/topic/how-to-reset-the-hosts-file-back-to-the-default-c2a43f9d-e176-c6f3-e4ef-3500277a6dae

6) Reset your network settings. Open command prompt(cmd) as administrator and type below stated commands one by one and hit enter.

ipconfig/flushdns

ipconfig /registerdns

ipconfig /release

ipconfig /release6

ipconfig /renew

ipconfig /renew6

netsh winsock reset

netsh int ip reset

netsh int ipv6 reset

netsh int ip reset all

arp -d

nbtstat -R

nbtstat -RR

netsh winhttp reset proxy

netsh advfirewall reset

netsh int tcp set heuristics disabled

netsh int tcp set global autotuninglevel=disabled

netsh int tcp set global rss=enabled

exit

7) Run Disk Cleanup: https://support.microsoft.com/en-us/windows/disk-cleanup-in-windows-8a96ff42-5751-39ad-23d6-434b4d5b9a68

8) Now, to be on a safer side, I would also advise you to run these portable scanners which do not require any installation

* Download and run Malwarebytes AdwCleaner: https://www.malwarebytes.com/adwcleaner

* ESET Online Scanner: https://download.eset.com/com/eset/tools/online_scanner/latest/esetonlinescanner.exe

* Download and run a scan with Kaspersky Virus Removal Tool: https://devbuilds.s.kaspersky-labs.com/devbuilds/KVRT/latest/full/KVRT.exe .Make sure you checkmark System Memory, Startup Objects, Boot Sectors & System Drive before running a scan.

Regards