mccolo

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Srizbi Botnet: Life after McColo

After McColo was shut down, the Srizbi botnet, a major source of spam and over 300,000 strong, was effectively quieted. Not for long, Spam levels eventually started ramping back up. How is that possible with no command and control servers? Read on to find out. by Michael Kassner

Tags: Command, Bot, Domain Name, McColo, Rustock, Domain Names, Servers, Internet, Hardware, Michael Kassner

Blog posts 2008-12-01

Additional Resources

Srizbi Botnet: Life after McColo

The botnets are returningBoth Srizbi and Rustock botnets are regaining strength. Security experts are trying to keep them off line, but colo hosting sites are willing to provide servers for command and control of the botnets. The ability to point to new command and control servers is a very sophisticated...

Tags: botnet, bot, McColo, Srizbi Botnet, domain

Discussion threads 2008-12-01

Botnets: Web-hosting site closed down and spam drops 50 percent

Two contracted ISPs stopped providing Web hosting firm McColo with Internet access, which immediately quieted several major botnets responsible for almost half of all delivered spam. Learning how and why this was done is worth your time. by Michael Kassner

Tags: SecureWorks Inc., Internet Service Provider, Spam Message, Washington Post Co., Ironport Systems Inc., Internet Service Providers (ISPs), Cyberthreats, Web Hosting, Spam, Internet, Security, Spam And Phishing, Michael Kassner

Blog posts 2008-11-16

McColo shut down?

So why can't we make it illegal to have / run / operate / participate in a spam scheme or bot scheme? Why do we have to allow it? 1st amendment stuff? How about doing the same for junk mail? How about doing the same for...

Tags: Telemarketing, E-mail, Advertising & Promotion, spam mail

Discussion threads 2008-11-17

MS08-067: Not updating has created a monster botnet

The similarities are interestingI find it becoming easier to correlate biological and electronic processes, as the electronic processes become more complicated. It will be interesting to see if both reach a certain oneness.Update Windows or become a botIn just over three weeks time, more than half a million computers have...

Tags: PRODUCTIVITY, Cyberthreats, SECURITY, MS08-067, computer

Discussion threads 2008-12-06

The Value of Security Suites

While the recent shutdown of systems hosted by McColo was a milestone in the war against spam, the shutdown was little more than a short-term obstacle for spammers. As the threat landscape continues to evolve, small and midsize businesses need to stay vigilant and informed. By gaining a greater awareness...

Tags: Shutdown, Symantec Corp., Environment, Small And Medium Business, Smb/Sme, Security

White papers 2009-01-01