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@