Nugache, one of the Web’s most sophisticated emerging emerging botnets, appears to be expanding its network and slashing prices. Nugache operates in much the same way as Storm, spreading like a worm, evolving and repacking itself to avoid signature-based defenses. The new low prices may be partly driving the recent increase in foreign-language spam that many users have been finding in their filters and emailboxes over the past few weeks. Recent reports indicate that spam comprises more than 95 percent of all email.”]
Source: https://www.darkreading.com/analytics/competition-may-be-driving-surge-in-botnets-spam