What is a Malignant Virus?

Yup. In the general sense of the term "virus" (any malware that can be installed on a computer), there are some kinds of malware, usually called downloaders, which can actually download more malware...

The vast majority of common cold viruses, primarily rhinoviruses and coronaviruses, are single-strand RNA viruses.

Instead of using DNA to infect its' host, it uses RNA. One example of a class/family of RNA virus are retrovirus. The RNA is injected into the host cell and the viral RNA undergoes reverse...

yes but no because they are competing againt whatever they are trying to get and not only that they need to stick together to help each other get rid of whatever...almost like a stomach virus or a...

Yes. It is called an active virus only because it is a virus that starts multiplying right away.