The Pentagon Wants To Wage War on Denial-of-Service Cyber Attacks

A U.S. Airman inserts a hard drive into the network control center retina server at Altus Air Force Base, Okla., Jan. 24, 2014.

DoD photo by Senior Airman Franklin R. Ramos

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A U.S. Airman inserts a hard drive into the network control center retina server at Altus Air Force Base, Okla., Jan. 24, 2014.

By next spring, researchers are expected to unveil new tools enabling organizations like the Defense Department a rapid response to distributed denial-of-service attacks.

The Pentagon has in mind a three-pronged counterattack against a decades-old form of cyber assault that continues to paralyze government and industry networks, despite its low cost of sometimes $10 a hit.

Beginning next spring, military-funded researchers are scheduled to produce new tools that would quickly enable organizations to bounce back from so-called distributed denial-of-service attacks.

A recovery rate of at most 10 seconds is the goal, according to the Defense Department.

Today, attackers have a relatively easy time aiming bogus traffic at computer servers to knock them offline. One reason is that computer systems often are consolidated, making for a wide target area. Another weakness is the predictable behavior of systems that support Web services. And finally, certain types of DDoS attacks that evince little malicious traffic go undetected. 

Researchers chosen by the Defense Advanced Research Projects Agency will attempt to deny attackers such openings through a three-year program called Extreme DDoS Defense, according to Pentagon officials. The tentative start date is April 1, 2016. 

(See also: Hackers to Military: Replace Us With Robots? Ha!)

The stability of agency operations, banking, online gaming and many other daily activities are at stake here.

A DDoS attack against Estonia in 2007 allegedly orchestrated by Russian-backed hackers downed government and industry Internet access nationwide for two weeks. More recently, crooks have begun offering Luddites DDoS-for-hire services at subscription rates of $10-$300 a month, according to journalist Brian Krebs

Lizard Squad, a major provider, allegedly was behind several persistent attacks on online gaming services Xbox and PlayStation. A string of 2011 cyber assaults against Wall Street banks, including Capital One and SunTrust Banks, was attributed to Iranian hackers.

Just this month, at the annual Black Hat security conference in Las Vegas, Trend Micro researchers said they observed attackers trying to overpower systems in Washington that monitor the physical security of gas pumps. Luckily, the devices were fake “honeypot” traps.

Responses to DDoS attacks are too slow and manually driven, with diagnosis and formulation of filtering rules often taking hours to formulate and instantiate. In contrast, military communication often demands that disruptions be limited to minutes or less,” DARPA officials said in an Aug. 14 announcement about the new program.

The funding level for the project was not disclosed but multiple grants are expected to be awarded. Interested researchers must submit proposals by noon Oct. 13. 

XD3 will endeavor to thwart DDoS attacks by “dispersing cyber assets” in facilities and on networks, officials said. Currently, the problem is that cloud computing arrangements and other critical infrastructure systems “rely heavily on highly shared, centralized servers and data centers,” they added.

The new tools also will try “disguising the characteristics and behaviors of those assets” to complicate the planning of DDoS launches, officials said.

(Read more: The Legal Problems with Cyber War Are Much Bigger Than You Think)

The trick with so-called “low-volume” DDoS attacks is they do not look like traffic overloads. The external computer messages seem benign but are actually exhausting a system’s memory or processors. One workaround here might be sharing information among systems that then can “decide collectively whether attacks have occurred, and/or to determine what mitigations might be most effective,” officials said.

One group of XD3 researchers will be assigned to inspect the designs for unintended security holes.

Anyone wanting to be a reviewer must hold a top-secret clearance, according to the contract rules.

The objective of design reviews is the proactive identification of weaknesses and vulnerabilities that would reduce the effectiveness of DDoS attack detection or mitigation,” officials said. The idea also is to “apprise performers of potential DDoS attack methods or features that they might not have considered.”

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