Cyber criminals and spammers have been (mis)using Twitter for a long time. Twitter has tried to stop or at least limit their use of the platform by defining some Web page limitations. Trend Micro has spotted a toolkit being offered for sale on many underground forums. It allows the malicious user to send messages to thousands of followers using SOCKS5 proxy and to send Follow invites to users and their followers. The toolkit is offered as a bonus when one buys a list of 10,000 Twitter users that follow adult content.
Source: https://www.helpnetsecurity.com/2010/07/05/twitter-kit-a-spammers-dream-come-true/