This extension integrates Burp Intruder with Hashcat Maskprocessor.

Maskprocessor is a word generator with a per-position configurable charset

You can find out more at https://github.com/hashcat/maskprocessor

Usage:

It can be used with:

Example: Password?d will generate Password0, Password1, Password3 etc.

Custom charsets:

Example: Password?1 -1 0A@ will generate Password0, PasswordA, Password@