As I have read, Avast doesn´t protect against rootkit. I have scanned my computer a few times and every time this rootkit appears I delete it and then I agree to scan the computer off, but it stays there.
Should I be worried???
4.8 will remove rootkits, but the Virtumonde detection may not be a rootkit- just a protected file.
Make sure you have the latest version of avast! and run a boot time scan.
If the problems persists, you’ll need to run Combofix and post a log, as described here: