What you are dealing with is a computer virus. Get another computer, and restore the seed phrase on that computer, reinstall the infected computer (because anti-virus is so awful at detecting viruses in the first place that it just kills running programs).
If it is a computer virus, OP should use Internet security, antivirus software to have better protection.
The best protection is don't do stupid things when surfing on Internet and don't use cracked softwares. It is a first barrier against hackers. The second layer of barrier and protection is software.
I think this is one of the reasons why wallets can be hacked. but keep in mind that don't connect your wallet to sites that are really unknown like fake airdrop claims, NFTs etc.
Try asking too, maybe a few days ago you connected your wallet to the claim airdrop site or not. What is certain is that the wallet can no longer be used. Let it go.