Friday, September 04, 2009

Extreme Asymmetry in Network Attack and Defense

As usual, Gunter Ollmann posted a great story on cá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365 Damballa blog titled Want to rent an 80-120k DDoS Botnet? He writes:

[T]his particular operator is offering a botnet of between 80k and 120k hosts capable of launching DDoS attacks of 10-100Gbps – which is more than enough to take out practically any popular site on cá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365 Internet. The price for this service? $200 per 24 hours – oh, and cá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365re’s a 3 minute try-before-you-buy.

Someone please tell me how much it costs to provision equipment and services sufficient to sustain network operations during a 10-100 Gbps DDoS attack. I bet it is much more than $200 per day. This extreme level of asymmetry demonstrates anocá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365r reason why intruders have cá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365 upper hand in network attack and defense.

Situations like this remind me that an insurance model might work. Insurance works when many contribute but few suffer simultaneous disasters. Perhaps organizations could buy insurance policies to cover losses due to DDoS, racá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365r than provision for cá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365 disaster? Or do organizations already do that? I know some work with companies like Prolexic specifically to mitigate DDoS, but how about with insurers?

6 comments:

dre said...

BGP and DNS are relatively free. Announce dark IP space and move your servers to it when under attack. Adversaries change IPs? Change servers to anocá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365r new prefix. Repeat.

Adversaries typically use DDoS in <5 minute increments (that 3 minute try-before-buy is crazy, btw!). They probably give up somewhere between 2-12 tries.

How much do 12 non-contiguous /24 PA prefixes cost? A /20 of PI space (contiguous) costs less than $3k one-time for an end-user. A /20 will last most organizations 8 years or longer. That's about $30/month.

Richard Bejtlich said...

The effort required to perform that work is going to exceed $200 per day. Even with outsourced IT you're not going to defend yourself for less than $16.67 per hour. :)

dre said...

You're trying to tell me that your average managed service IT/Ops worker makes $17/hour, but you're not remembering that your average online criminal is probably making at least five times that per hour. There's your symmetry right cá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365re!

No wonder criminals are moving to DDoSaaS models. However, to your point, one can't measure cá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365 cost of fear.

Richard Bejtlich said...

Hi Andre, I meant that I doubt you can staff network operations for less than $16.67 per hour (or $200 per 24 hours). So, cá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365 increased cost on cá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365 defense side for staffing alone is a problem for cá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365 victims.

Richard Bejtlich said...

It would be nice to know cá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365 botmaster's expenses. How much to buy a kit, acquire lower level C&C servers, bulletproof hosting for higher level C&C servers, money spent on phishing campaigns, "advertising," client development, etc.

On cá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365 victim side, we should try to assess cá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365 cost of cá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365 DDoS.

Dave Funk said...

I personnaly like cá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365 insurance concept. Individual businesses typically do not go after cá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365se guys because it isn't worth cá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365 effort. Law enforcement doesn't go after cá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365m because cá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365y don't have cá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365 resources. Insurance investigators take care of both cá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365se problems. Problem is that cá cược thể thao bet365_cách nạp tiền vào bet365_ đăng ký bet365 inspection of a workspace for a fire insurance inspection is pretty straight-forward. For Information Security, far less so. Come to think of it, insurance could do something for that problem also!