Search /
Docfinder:
Advanced search  |  Help  |  Site map
RESEARCH CENTERS
SITE RESOURCES
Click for Layer 8! No, really, click NOW!
Networking for Small Business
TODAY'S NEWS
How Apple's billion dollar sapphire bet will pay off
iPhone 6 rumor rollup for the week ending April 18
Arista co-founder may have switch maker by its jewels
Open source pitfalls – and how to avoid them
AT&T's expanded 1 Gbps fiber rollout could go head to head with Google
BlackBerry Releases BES 10 Security Update to Address 'Heartbleed' Flaw
Verizon: Web apps are the security punching bag of the Internet
Cisco announces security service linked with new operations centers
Dell launches virtual storage accelerator, aims to boost SAN performance
Free OS X Mavericks now powers half of all Macs
Even the most secure cloud storage may not be so secure, study finds  
3D printing will transform these five industries
Most but not all sites have fixed Heartbleed flaw
NEC launches face-recognition protection for PCs
Hundreds of medical professionals targeted in multi-state tax scam
Super-high frequencies could one day deliver your mobile video
Americans cool with lab-grown organs, but not designer babies
IT Departments Not Losing Ground to Managed Service Providers (Yet)
Where's my gigabit Internet, anyway?
IE6: Retired but not dead yet
Enterprise who? Google says little about Apps, business cloud services in Q1 report
DDoS Attackers Change Techniques To Wallop Sites
Can we talk? Internet of Things vendors face a communications 'mess'
AMD's profitability streak ends at two quarters
Michaels says breach at its stores affected nearly 3M payment cards
How Apple's billion dollar sapphire bet will pay off
iPhone 6 rumor rollup for the week ending April 18
Arista co-founder may have switch maker by its jewels
Open source pitfalls – and how to avoid them
AT&T's expanded 1 Gbps fiber rollout could go head to head with Google
BlackBerry Releases BES 10 Security Update to Address 'Heartbleed' Flaw
Verizon: Web apps are the security punching bag of the Internet
Cisco announces security service linked with new operations centers
Dell launches virtual storage accelerator, aims to boost SAN performance
Free OS X Mavericks now powers half of all Macs
Even the most secure cloud storage may not be so secure, study finds  
3D printing will transform these five industries
Most but not all sites have fixed Heartbleed flaw
NEC launches face-recognition protection for PCs
Hundreds of medical professionals targeted in multi-state tax scam
Super-high frequencies could one day deliver your mobile video
Americans cool with lab-grown organs, but not designer babies
IT Departments Not Losing Ground to Managed Service Providers (Yet)
Where's my gigabit Internet, anyway?
IE6: Retired but not dead yet
Enterprise who? Google says little about Apps, business cloud services in Q1 report
DDoS Attackers Change Techniques To Wallop Sites
Can we talk? Internet of Things vendors face a communications 'mess'
AMD's profitability streak ends at two quarters
Michaels says breach at its stores affected nearly 3M payment cards


/
Send to a friend Feedback

Network Associates hit by DoS attack

Related linksToday's breaking news
Send to a friendFeedback


Antivirus software vendor Network Associates late Wednesday was hit by a denial-of-service attack, a company executive confirmed Thursday.

Access to the company's Web site was hampered for a 90-minute period, but the site never went fully offline, according to Jim Magdych, security research manager at the Computer Vulnerability Emergency Response Team (COVERT) at PGP Security, an NAI business.

Some users were unable to connect to the NAI Web site during the attack, while others could access the site but experienced slow responses to their queries, Magdych said. All NAI's sites worldwide were affected.

Denial-of-service attacks can disable a Web server or other type of computer by bombarding it with a high volume of fake requests for information, causing the target computer to crash or become so overwhelmed that it grinds to a halt. Just last week Microsoft was hit by two denial-of-service attacks, one of which disabled most of its popular Web destinations for several hours.

NAI's IT department is still trying to identify the source of the attack, Magdych said. He declined to comment on whether NAI would call in the FBI. Microsoft has already asked the FBI to investigate its denial-of-service attacks.

The denial-of-service attack was against NAI's Domain Name System (DNS) server, not its Web servers, Magdych said. However, the attack didn't "exploit the vulnerabilities" COVERT documented on Monday, he added. "It was a simple flooding attack."

COVERT on Monday warned of vulnerabilities in the software used in most DNS servers. At that time, Magdych said that flaws in two widely used versions of BIND - Berkeley Internet Name Domain, distributed free by the Internet Software Consortium (ISC), could be exploited immediately by unscrupulous programmers.

If exploited, the vulnerabilities could enable hackers to shut down both ISPs and corporate Web servers as well as steal data. On Monday, COVERT and ISC posted patches for the vulnerability.

Given the publicity COVERT's announcement gained, Magdych said hackers' ire against NAI may be behind the denial-of-service attack. "It certainly could be a motivating factor," he said.

Simple flooding denial-of-service attacks are very hard to counter since all servers have physical limits of how much traffic they can handle, Magdych said. He added that NAI's IT department has already implemented the necessary means to try and minimize any future such attacks.

NAI's IT department noticed the denial-of-service attack immediately since it "proactively monitors anomalous traffic," Magdych said. Within 15 minutes of the attack beginning, the IT department had assembled a team to deal with the problem and was in contact with NAI's ISP.

The IDG News Service is a Network World affiliate.

Related Links

 
NWFusion offers more than 40 FREE technology-specific email newsletters in key network technology areas such as NSM, VPNs, Convergence, Security and more.
Click here to sign up!
New Event - WANs: Optimizing Your Network Now.
Hear from the experts about the innovations that are already starting to shake up the WAN world. Free Network World Technology Tour and Expo in Dallas, San Francisco, Washington DC, and New York.
Attend FREE
Your FREE Network World subscription will also include breaking news and information on wireless, storage, infrastructure, carriers and SPs, enterprise applications, videoconferencing, plus product reviews, technology insiders, management surveys and technology updates - GET IT NOW.