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“Operation Windigo” Attack Infects 10,000 Unix Servers, Millions of PCs at Risk

The Linux servers occupy the largest share of this market, which means that they are the most prone to attacks from hackers and other malevolent cyber-criminals. ESET researchers and a few other agencies have shown that Unix servers have been used to spread malware and send spam emails.

As the teams from ESET, CERT-Bund, the Swedish National Infrastructure for Computing, and a few other groups have discovered, this concerted action from unknown cyber-criminal groups has been going on for quite some time.