[HIB]Huge spamming botnet injured but still alive

A botnet responsible for a significant amount of spam has been crippled but may reconstitute itself in a matter of weeks, according to vendor M86 Security.The Pushdo or Cutwail network of hacked computers ranked in the top five or so botnets for spam, responsible for as much as 10 percent of all spam, said Ed Rowley, product manager for M86 Security. The spam often advertises fake software, so-called designer goods and questionable pharmaceutical products.But security analysts with the computer security company LastLine took action last week, contacting ISPs that were hosting the command-and-control infrastructure for the botnet. About 30 servers at eight hosting providers were found to be supporting Pushdo. LastLine contacted the ISPs, and about 20 of the servers were taken offline, according to itsblog. Some ISPs, however, were unresponsive.

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