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Hacking The TDoS Attack
From: InfoSec News <alerts () infosecnews org>
Date: Mon, 3 Jun 2013 01:30:06 -0500 (CDT)
By Kelly Jackson Higgins
May 30, 2013
When an ICU nurse refused to pay scammers who insisted she owed money
for a payday loan, they unleashed a robo-dial flood of hundreds of calls
per hour that ultimately shut down the phone system of the hospital's
intensive care unit. In another case, supporters of a popular company
that received a negative rating from a major financial firm voiced their
displeasure by crowdsourcing phone calls to the firm in an attempt to
block its trading and other functions -- and they organized it via a
Facebook Event post.
These real-world cases of telephony denial-of-service (TDoS) attacks in
the past year didn't get the publicity that distributed
denial-of-service (DDoS) attacks did, but security experts say these
types of attacks have been on the rise in the past couple of years and
can be just as damaging as a DDoS.
"Personally, I believe that it's a more invasive approach to target a
company's [or] individual's primary means of communication. Just like
DDoS attacks, based on my observations, they tend to abuse the
infrastructure of legitimate services, Skype, ICQ, major U.S-based
carriers, and relevant SIP providers," cybercrime researcher Dancho
Danchev said in an interview via email.
TDoS attacks -- which earlier this year were becoming prevalent enough
that the U.S. Department of Homeland Security issued an alert about a
threat of TDoS attacks on public sector entities in an attempt to extort
money -- are typically similar in motivation and goals as DDoS attacks
that flood networks, websites or other servers with massive volumes of
traffic meant to bring an organization's data structure to its knees.
Call centers are the most popular TDoS targets -- they're easy to
contact and flood with calls -- and, increasingly, there are more tools
readily available tools for launching these attacks on any organization
or individual's location.
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- Hacking The TDoS Attack InfoSec News (Jun 03)