from the where-the-money-is dept.
pete richards writes "Signalling a trend towards increased 'outsourcing' of some elements of malware creation, worm authors are increasingly turning to commercially available rootkits to help their creations slip past virus detection engines. Those root kits in the mean time are becoming more professional. Antivirus vendor F-Secure reported last week that it had detected a first rootkit designed to bypass detection by most of the modern rootkit detection engines."
egrep patterns are full regular expressions; it uses a fast deterministic
algorithm that sometimes needs exponential space.
-- unix manuals