This scanner scans to see if a certain host or IP is vulnerable to the Wu-ftpd 2.6.0 bug. Written in portuguese.
You can download it from the following link: https://packetstormsecurity.com/files/download/22904/Wuftpd-scan2000.c
Source: https://packetstormsecurity.com/files/22904/Wuftpd-scan2000.c.html