It has already been fixed by LINE.

LINEAtAuto

https://www.kotayan.xyz/lineat/2018/08/16/LineAt-AutoRegistration.html

Motivation

https://www.j-cast.com/2018/08/06335646.html?p=all
I'm not the author of this bot. I have researched independently since this incident happened.

Overview

Follow the steps below

1. Create LINE@ account automatically.
2. Request any thrift functions.
3. Delete LINE@ account.

For example, you can generate a channel token to access the timeline and use the generated channel token to post to the timeline. Obama bot illegally used a function "makeUserAddMyselfAsContact" that can be used by official accounts.

Requirements

• linepy for LINE@
• CMSToken
• udidHash

How to get CMSToken and udidHash

You can use get_cms_token.py.

iOS

You need jailbroken iOS device

• cmsToken
  hook LEGYRequestResponseHandler, then cmstoken in header

• udidHash
  I forgot. But it is okay random strings.

Android

idk