Spam zombies — we need to cure the disease, not suppress the symptoms
Thursday, December 28th, 2006Here’s a great presentation from
Joe St Sauver presented at the London Action Plan meeting
recently: Infected PCs Acting As Spam
Zombies: We Need to Cure the Disease, Not Just Suppress the Symptoms
Some key points in brief:
Despite all our ongoing efforts: the spam problem continues to worsen, with
nine out of every ten emails now spam; spam volume has increased by 80% over
just the past few months and users face a constantly morphing flood of
malware trying to take over their computers. Bottom line: we’re losing the
war on spam.The root cause of today’s spam problems is spam zombies, with 85% of all spam
being delivered via spam zombies.The spam zombie problem grows worse every day (with over ninety one million
new spam zombies per year)Users don’t, won’t, or can’t clean up their infected PCs; and ISPs can’t be
expected to clean up their infected customers’ PCs.Filtering port 25 and doing rate limiting is like giving cough syrup to
someone with lung cancer — it may suppress some overt symptoms but it
doesn’t cure the underlying disease.Filtered and rate-limited spam zombies CAN still be used for many, many OTHER
bad things, and they represent a huge problem if left to languish in a live
infected state.
Joe’s take — “we’re in the middle of a worldwide cyber crisis”. I agree.
He suggests a new strategy:
It is common for universities to produce and distribute a one-click
clean-up-and-secure CD for use by their students and faculty. It’s now time
for our governments to produce and distribute an equivalent disk for everyone
to use.
I agree the existing schemes are clearly not working; this is an interesting
suggestion. Read/listen to the presentation in full for more details; pick up PDF, PPT and video here.
Tags:anti spam botnets ddos internet joe st sauver london action plan security smtp windows zombies
This post was written by Justin, source: Spam zombies — we need to cure the disease, not suppress the symptoms