Botnet goes back after McColo shutdown

The notorious botnet hosting, McColo has been taken down by a group of Internet Providers on Nov 10 and total spam production dropped as much as 50 percent. The action followed investigations by security researchers that found that McColo was found to become the preferred home of for many botnets' command and control servers, including Rustock and Asprox. Now that Cellopoint Lab has found that spam volumes are rising up again after decreasing four weeks ago when a rogue hosting company was shutdown. The volumes dropped for 9 days and are on the rise. The reason that may account for could be some botnets are awakened or regenerated. Spammers seem to try many ways to send out spam. The Mega-D botnet, well-known for producing "billions" of spam, most of which promote sexual performance drugs such as Viagra has worked effectively over the last three weeks to set up new command and control servers and re-establishes connections with its networks of compromised bots. And other famous botnet, Srizbi and Rsutock have also come back. The botnets' return comes as no surprise to the information security industry. The spam should be monitored, despite its dropped volume. Organizations still need to remain the same level of security as usual. To help protect against many email and internet threats, Cellopoint recommends the following: spam filtering and email anti-virus. Rather than rely on any single piece of anti-spam and anti-virus product or technology, deploy multiple layers of security throughout the organization by Email UTM.

About Cellopoint
Cellopoint is a leading provider of email UTM (Unified Threat Management) solutions for organizations ranging from small businesses to large enterprise and ISPs. We defend against email threats such as spam and viruses, prevent leaks of confidential data by content filtering and secure mail delivery, archive email to protect your digital assets, comply with regulatory inquiries and corporate investigations in a single, web-based platform. We provide the maximum reliable, scalable and flexible solutions to help you deploy and manage easily. For more information, please visit : www.cellopoint.com