New Massive Botnet Twice the Size of Storm

Monday, April 7th, 2008

A new botnet twice the size of Storm has ballooned to an army of over 400,000 bots, including machines in the Fortune 500, according to botnet researchers at Damballa. The so-called Kraken botnet has been spotted in at least 50 Fortune 500 companies and is undetectable in over 80 percent of ...

Analysis of a Win32.Delf Variant

Friday, April 4th, 2008

We have been noticing quite a few malware samples having references to or communicating with Google's SMTP servers. This post dissects one of these samples and in the process attempts to illustrate to the reader some reversing techniques and information gathering techniques, while explaining the behavior and impact of this ...

What You Should Know About Firewalls

Saturday, March 8th, 2008

Scott Rolf knows trouble when he sees it. An IT director for a law firm near Cleveland, Ohio, Rolf was asked by a friend to check out the new Web site the friend had put up on a DSL-connected Web server. Rolf did more than just visit his friend's site; ...

The New NAT-Friendly Microsoft

Saturday, March 8th, 2008

VPN just got easier. Windows 2000 and XP clients can do IPSec out of the box, but when you attempt to VPN to an external resource from behind a NAT router/firewall, challenges ensue. To date, Microsoft has not gotten along well with NAT, but in a brand new update made ...