RFI: DDoS Against Government and Civilian Web Sites

We are aware of an ongoing DDoS against several high-profile web sites.  Public details are in these online stories:



There have also been sketchy reports that South Korean websites are experiencing outages.  We are looking for any additional information, especially technical reports or packet captures.  Please use our contact page.

Marcus H. Sachs
Director, SANS Internet Storm Center


301 Posts
ISC Handler
Jul 8th 2009
Seems like S. Korea has been hit for sure:
Why the "RFI" label in the title of this diary entry? I have not seen any news story confirmation that RFI has played a role in these attacks. Botnet herding by use of RFI attacks against vulnerable PHP websites is certainly a widely used attack vector to draft web servers into a botnet but I have not seen any confirmed reports that these DDoS attacks are leveraging compromised websites. Has anyone seen news to the contrary?
RFI = Request for Information

301 Posts
ISC Handler
Ah... acronym conflits strike again as the RFI I run into day-to-day is Remote File Inclusion attacks.
7 Posts

14 Posts
Can we get a list of IPs under attack so we can check our flow data for customers hammering those sites? We SPs can be part of the solution if we can get the necessary info.
Yes please, prominent IPs under attack and common ports or attack vectors if possible?

48 Posts
re update 4 - the US govt sites all seem OK. Others, such as www.president.go.kr are still inaccessible.
I just received a "Nice" email from a company trying to exploit these attacks to increase their business ...
***************Pasted content of the email *************

I have some important news that I wanted to share with you regarding a recent information security threat that SecureWorks has been tracking. SecureWorks Counter Threat Unit (CTU) and Joe Stewart have been analyzing the code behind the botnet launching the denial-of-service attacks against US government sites, US commercial sites and South Korean sites. Stewart was quoted in nearly 4,000 press articles for the work.

The July 4th weekend DDOS exposed a range of vulnerabilities in the attacked sites. While several ill-prepared organizations had their sites shut down, the protected ones were met with minimal disruption.

If you are interested in learning more, you can readfurther information about the DDOS attacks here:

New York Times:
Business Week: http://www.nytimes.rsvp1.com/s15040nmiit
Washington Post: http://www.businessweek.rsvp1.com/s191c1nmiiv
CIO: http://www.washingtonpost.rsvp1.com/s15540nmiixhttp://www.cio.rsvp1.com/s19581nmiiy

Along with the DDOS attacks, SecureWorks also made news this weekwith our acquisition of VeriSign’s MSS business: http://www.secureworks.rsvp1.com/s194c1nmiiz ). SecureWorks now has over 2,600 clients worldwide and is the largest pure-play provider of Managed Security and Security-as-a-Service offerings.

If you would be interested in speaking with me or my associate, Don Addington, further about any of the above information, please do not hesitate to give me a call or respond with an email.

Have a great weekend!
******************* End of Paste ***************

Does this bother anyone else??

1 Posts

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