'Dasher' No Reindeer Game.
A new worm dubbed "Dasher" by antivirus companies is bringing an early holiday present for Microsoft Windows users who haven't applied a security update recently shipped from Redmond.
According to a post on the blog of Finnish antivirus company F-Secure, we've seen two versions of this worm in the past few days, the first iteration of which didn't work right and fizzled. The worm is based on exploit code that was first posted online for the world to see just a few weeks ago.
Microsoft released a patch in mid-October to fix the flaw Dasher exploits. If you're not up-to-date on patches, I'd strongly recommend heading over to Microsoft Update to remedy that.
The virus authors appear to have fixed whatever hobbled the first
Dasher, and the worm is now happily spreading Christmas cheer by
dropping a keystroke logger on machines it infects.
Many people may have the impression that keyloggers record
everything a victim types on their keyboard. While a few keyloggers in
use do that (usually the commercial variety designed to help parents
spy on their kids' home computer use), the bad guys generally aren't
interested in reading reams of IM chat conversations and silly e-mails.
Plus, that's a huge amount of data to be sending out of an infected
machine.
Rather, a keylogger employed by viruses and worms usually works off
a predefined list of financial and e-commerce sites. The keylogger
program lies in wait until the victim visits one of those sites, at
which time it intercepts any information entered into credit card and
other personal data fields and transmits the information back to
attackers.
The [Security Fix (Wash Post)]
12:05:01 PM PermaLink /
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