4b*1 is redundant way to say plain 4b values. It got popular during the years of flash numbers. To find a value that was shown as 10 in game you would need to scan for the value times eight and it was referred as 4b*8. In short it's a way to both say the data type and if there are numeric modifications to do to the value to scan for. 

Ie in a 4b*8 settings if your money was 10 you would scan for 80

4b means 4 bytes or 32bits (it's the data type of the value you scan for)

Thanks for the fast response guys