check the latest HWInfo application, it shows mem temperatures now for the 3090s..

mining software is pretty much always detected as malware/troje. making sure the source you download from is good it the only way to make sure its ok/source code. i use awesome miner and have had no issue so far over 4 years.

you need to make sure the windows AV  exceptions are set correctly to ignore it

they need to stop newbie accounts from posting links..

Try that, make sure AM is open.

https://www.awesomeminer.com/pools/miningpoolhub