Hash crack first charaters known

[salmawisokys]

How could I run a brute force when I know the first few letters of a hash? I am using this now:

hashcat -m100 -a3 -o cracked.txt Drift Boss hashed.txt

I know the first 5 characters and their order. 
Thanks in advance for your help and time.

If you know the first few characters of a hash and want to perform a brute force attack using hashcat, you can utilize the mask attack mode. The mask attack allows you to specify the structure or pattern of the password you are trying to crack.