an idea about installation monitoring

does anyone know if avast free or paid versions has an ability to monitor
most/if not all software installations to check for any hint of viral signatures?
that’s something i was thinking earlier in time that has just come to mind.

if this has not already been mentioned,… if it has much apologies ahead of time.

avast scans files on access, including any software installation.
Of course, there are false negatives or false positives like any other detection antivirus.