And what tells you 100% sure they are indeed malware?
Could it be that your settings make avast not detect them?
What EXACT version of avast do you have?
What is your vps version?
What is your OS?
How and with what setting(s) did you scan the file(s)?
etc etc.
And if you have to come back to the same thing you mentioned earlier, there is no need to start a new thread, just continue in the original one to avoid confusion.
last month I sent almost 10 viruses that avast didn't alert.
How, when (etc) did you see them?
What make you believe they are virusses? (more likely they are malware and not virusses btw)
Sofar it seems you only shout (without any knowledge) and do not provide any information that we can go on.
Please provide more (usefull) information so we have something that we can investigate.
Patient: "Doctor, it is hurting me"
Doctor: "What is hurting you, where does it hurts?"
Patient: "I don't know"