Bleeping Computers is reporting on the discovery of a new cyber-criminal gang, Metador, who have apparently been infiltrating ISPs, telecos and universities for the last two years:
New hacking group ‘Metador’ lurking in ISP networks for months (bleepingcomputer.com)
The group have been involved in some complex operations using Windows and Linus based malware and effective countermeasures to obscure their activity.