I AV tools updated and use them often. Tonight I had an update with AVG that reguired a re-boot. That is not normal. Usually you can go streight to the scan without the re-boot.
AVG immediately reported a Virus named Java/Byte Verify. This is a backdoor trojan. There was no action on my part. Trojan was removed automatically.
This update to AVG added detection of variants of several backdoors.
If you are using AVG 7.0 update now and run a full scan.