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发信人: ymboy (开始学英语), 信区: Security
标题: Electronic attack slows Internet
发信站: 荔园晨风BBS站 (Sun Jan 26 10:39:07 2003), 站内信件

Electronic attack slows Internet
WASHINGTON (AP) -- Traffic on the many parts of the Internet slowed
dramatically for hours early Saturday, the apparent effects of a
fast-spreading, virus-like infection that overwhelmed the world's
digital pipelines and interfered with Web browsing and delivery of
e-mail.

Sites monitoring the health of the Internet reported significant
slowdowns globally. Experts said the electronic attack bore remarkable
similarities to the "Code Red" virus during the summer of 2001 which
also ground traffic to a halt on much of the Internet.

"It's not debilitating," said Howard Schmidt, President Bush's No. 2
cyber-security adviser. "Everybody seems to be getting it under
control." Schmidt said the FBI's National Infrastructure Protection
Center and private experts at the CERT Coordination Center were
monitoring the attacks.

The virus-like attack, which began about 12:30 a.m. EST, sought out
vulnerable computers on the Internet to infect using a known flaw in
popular database software from Microsoft Corp., called "SQL Server
2000." But the attacking software code was scanning for victim computers
so randomly and so aggressively -- sending out thousands of probes each
second -- that it overwhelmed many Internet data pipelines.

"This is like Code Red all over again," said Marc Maiffret, an executive
with eEye Digital Security, whose engineers were among the earliest
to study samples of the attack software. "The sheer number of attacks is
eating up so much bandwidth that normal operations can't take place."

"The impact of this worm was huge," agreed Ben Koshy of W3 International
Media Ltd., which operates thousands of Web sites from its computers in
Vancouver. "It's a very significant attack."

Koshy added that, about six hours after the attack, commercial Web sites
that had been overwhelmed were starting to come back online as
engineers began effectively blocking the malicious data traffic.

"People are recovering from it," Koshy said.

Symantec Corp., an antivirus vendor, estimated that at least 22,000
systems were affected worldwide.

"Traffic itself seems to have leveled off a little bit, so likely only
so many systems are exposed out there," said Oliver Friedrichs, senior
manager with Symantec Security Response. The attacking software,
technically known as a worm, was overwhelming Internet traffic-directing
devices known as routers.

"The Internet is still usable, but we're definitely receiving reports
from some of our customers who have had it affect their routers
specifically," Friedrichs said.

The attack sought to take advantage of a software flaw discovered by
researchers in July 2002 that permits hackers to seize control of
corporate database servers. Microsoft deemed the problem "critical"
and offered a free repairing patch, but it was impossible to know how
many computer administrators applied the fix.

"People need to do a better job about fixing vulnerabilities," Schmidt
said.

The latest attack was likely to revive debate within the technology
industry about the need for an Internet-wide monitoring center, which
the Bush administration has proposed. Some Internet industry
executives and lawyers said they would raise serious civil liberties
concerns if the U.S. government, not an industry consortium, operated
such a powerful monitoring center.

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非常感谢 ymboy 在学子论坛发表文章,本文章仅代表原作者观点，与本社区立场无
关

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