FBPwn is an open source, cross-platform, Java based Facebook profile dumper. It can send friend requests to a list of Facebook profiles, and poll for their acceptance notification. Once the victim accepts the invitation, it dumps all their information, photos and friend list to a local folder. It supports a lot of modules that can expand its current functionalities. People might use it for malicious purposes too like cloning a Facebook profile. It will not stop executing until the friend request is accepted.
Source: https://thehackernews.com/2011/09/fbpwn-cross-platform-facebook-profile.html