http://www.washingtonpost.com/wp-dyn/articles/A42301-2003Jan25.html


A rapidly spreading computer worm on Saturday infested networks and bogged
down Internet traffic across the globe, crippling online services in one of
the world's most wired countries, South Korea.
Called "Sapphire" or "SQL Slammer," the worm carries a self-regenerating
mechanism that enables it to multiply quickly across the Internet, said
Mikko Hypponen, manager of anti-virus research at F-Secure, the
Helsinki-based computer security firm.

"It is so good at replicating that it generates massive amounts of traffic
that will slow down networks," Hypponen said. "The end user never sees it.
They only experience the slowdown on the Net."

Security experts blamed the worm for crashing almost all Internet services
in South Korea.

It was the first time South Korea's broadband and mobile Internet services
have been shut down on such a scale, although hackers are fairly active in
the country where 70 percent of households have Internet access.

"It is highly likely hackers have launched an all-out attack on the
country's Internet system," Yonhap news agency quoted an official of the
Ministry of Information and Communication as saying.

CODE RED SIMILARITIES

The problem was not limited to South Korea, with systems slowing from Japan
to Europe to the United States, officials said.

The worm has been likened to the "Code Red" bug of July, 2001, an
infestation that slowed traffic dramatically on the Internet. The authors of
that malicious code remain a mystery.

The worm infects computer servers that run on Microsoft Windows 2000 SQL
software. Once it attaches to a server it transmits multiple data requests
in a random manner to other IP addresses on the Internet looking for more
vulnerable servers to infect.

The effect is a flood of traffic that bogs down ISP networks and can even
knock Web sites off-line, Hypponen said. He added the worm was probably
installed on a faulty server by a virus writer or hacker within the past few
days.

A patch is available on Microsoft's Web site, www.microsoft.com, he added.

Left unchecked, Hypponen warned that the worm could continue to create large
network disruptions for ISP customers, plus knock out some Web sites over
the coming days.

Hypponen said it had disabled the email server of a corporate client in
Slovenia. Meanwhile, ISP customers in the United States and Britain lodged
distress notes on Internet message boards on Saturday complaining about
slowdowns in Internet traffic.

TARGET: SOUTH KOREA

The biggest impact appeared to be in South Korea, however, where police were
called in to investigate the matter.

The infestation impacted the country's largest ISP, KT Corp, bringing down
its entire Internet service, said a company spokesman.

He said services were down for several hours in the afternoon but were now
recovering. However, the networks of number two operator Hanaro Telecom Inc
and number three Thrunet Co were still experiencing trouble.

The crash was triggered by a huge volume of transmissions flowing into KT's
Hyehwa service in Seoul, officials said.

All of South Korea's major high-speed Internet services use the KT server,
so all suffered the same interruption of service.

Graham Cluley of Sophos Anti-Virus, a UK virus detection firm, said the
first reports to his firm came from companies in Asia. A number of companies
in Europe have also contacted the firm reporting a degradation in Internet
speed, he added.

AOL, the world's largest ISP with over 35 million subscribers, appeared to
survive unscathed. A spokesman for AOL the Time Warner Internet unit said
the worm had no impact on its service.



xponent
All Of Korea? Maru
rob
________________________________
You are a fluke of the universe.
You have no right to be here.
And whether you can hear it or not,
the universe is laughing behind your back.


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