That result is a false positive. Antivirus software will frequently flag bitcoin-qt and bitcoind as viruses. If you have verified that the binaries that you downloaded are legitimate, then there is no problem here.
Antivirus software flag bitcoin-qt and bitcoind as coin stealers and mining viruses because they look for a wallet.dat file (since that is the file it uses for the wallet) and they have mining code (for mining testnet and regtest).
Thank you very much