Payload Categories
Payloads are categorized. The categories are:
access
Access payloads create a more usable access from physical access, usually in form of admin (or root) accounts.
extraction
Extraction payloads extract certain data from the device, could be files, password hashes, anything.
infection
Infection payloads infect the target OS with some kind of payload.
tampering
Tampering payloads change data on disk, be it changing passwords, or swapping files.
misc
Other payloads which do not match any of the above or are best not put there.