Is anyone else starting to get concerned about the Storm Bot net? This
is a topic that seems to have avoided mass media interest, despite
having first cropped up in January this year. There are a number of
factors which make this worm very different from prior such outbreaks.
Up to now, worms would spread as fast and far as they could in order to
achieve maximum power and publicity before activating a payload. This
historically has been in the form of DDOS attacks. What makes storm so
dangerous, is that it appears to be extremely well coded. Once a windows
machine is infected, it silently joins the pool without any overt signs
to the end user. The way in which the worm spreads also makes it hard to
both detect and provide an effective countermeasure against as the
worm's code changes twice an hour as well as its constantly evolving
social engineering based attacks. Users have been lured with offers of
free music or emails purportedly to be emergency notifications of a
dangerous weather front in Europe. In fact the name of the worm comes
from those initial emails.
Each infected node communicates with others via a specially designed
peer to peer network, rather than a single central server and each node
can function independently should it need to. It is hard to get an
estimate as to the number of infected clients are present throughout the
world. Estimates vary wildly from 50-70
thousand to 1 to
50 million. Think of the bandwidth this worm not has available and
how devastating such a DDOS would be. In the past DDOS attacks, when not
virus related, came from a fairly narrow range of IPs allowing the
targeted systems to block provinces or even continents of IP addresses.
Whilst this would render the site completely inaccessible from genuine
users in those areas, at least the site could provide partial service to
other areas of the globe. With Storm, there does not appear to be a way
to defend against an onslaught on such diverse scale given the world
wide distribution of infected clients. Worryingly the bot net has not
yet been very active, experts estimate it as running at around 10%
capacity with a small number of nodes (tens of thousands only) spreading
the infection and other nodes either dormant or sending out spam
messages. It is conceivable that over ten billion spam messages have
been sent already. There are signs the bot net has been retaliating
against efforts to halt its progress with several sites either being
hacked or suffering DDOS attacks.
Whilst I do not wish this post to sound like I am scaremongering for the
sake of a post, I am genuinely concerned as to the lack of public
knowledge / media attention on this matter. Whilst a google search of
'Storm Botnet' will yield a fair amount of information, a conversation
with several of my informed friends revealed very little in the way of
awareness. Certainly for me, a bot with purportedly enough power to wipe
countries off the Internet is a cause for concern as it should be every
windows PC user.
Posted by
Konrad at
11:52 AM
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