if they are not showing up in the forge menu then they are probably trojans which is a type of virus that disguises its self as normal software like a firewall and a waterwall you can only remove it by using a av or formatting your hard drive which removes everything by doing [format harddrive] in terminal

if it just says you need more cmods type [scan] in the terminal while connected to a npc to have a chance to collect cmods or compilers which are used to upgrade your softs