I switched to paranoia mode ON, just updated AV and all I could...
haha i have encrypted my wallet now and then this brings up my next question

how often do i have to unlock my wallet to get my stake?

without unlocked wallet will no stake... so I wonder if is good idea locking wallet, coins are relative safe, but with no mined coins. Unlocking wallet do same as unencrypted so its questionable if let it opened or not
edit: sometime it start mining after few hours, sometime after few minutes, but better is opened all day long because I get blocks during all day, in random times