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Cyber criminals have gained back control of a shut botnet that was used for spamming.

The “Srizbi” botnet  was taken back in control, said chief security content officer Fengmin Gong of FireEye Inc.

McColo Corp., was a web-host that used to do criminal activities and was shutdown 2 weeks ago. And now the PCs infected with Srizbi and other malwares were unable to communicate with their command servers,meaning that the new “BOSSES”  channeled the control to their servers.

Now many companies including FireEye, VeriSign Inc., Microsoft Corp. and Network Solutions Inc., to detect Srizbi on domains [i guess you have missed a connecting verb here, like are doing everything to detect].

Once each bot was updated, the next command was to send spam. We’re trying to find a solution, and talking about ideas of how they can help fund efforts for some period of time to [preemptively] register domains,said Gong.

Looks like Srizbi  can turn out to be massive threat not only to users but the security enterprise and ISPs as well,  unless it is controlled soon…