Feeds

Scottish ISP floored as DDoS attacks escalate

edNET attack part of wider assault

  • alert
  • submit to reddit

3 Big data security analytics techniques

Most of the customers of Edinburgh business ISP edNET were left without Internet services yesterday after it experienced a serious distributed denial of service (DDoS) attack.

edNET began to experience what it described in an email to users as a "catastrophic network failure" at around 8am yesterday. This resulted in most of edNET's users experiencing difficulties sending email or browsing the Internet throughout yesterday.

Engineers confirmed that the problem was a result of a DDoS attack on its network, and were able to restore services after applying filters to its network nodes, and asking upstream service providers to do the same thing.

Emails from Register readers report that an attack on edNET's ADSL subnets resulted in around 12 hours downtime for some customers (edNET said services were up and running yesterday afternoon). At the height of the attack two of edNET's 45Mbps links were saturated with attack traffic.

Mussy Kurt-Elli, a business development manager at edNET, said the attacks against the ISP were part of a wider assault, which he told us also affected other service providers.

The assault, whose source remains unclear, focused on Telnet ports and was blocked by setting up "draconian" filtering rules, he told us.

We understand from edNET that BT's backbone ADSL routers had to be reset because of the attack, but the telco is yet to get back to us for comment on this.

edNET, which has a redundant network, will review its procedures to see what changes it can make to defend against any future attacks. DDoS attacks are notoriously difficult to prevent, but some tools are available which mitigate their effects.

Earlier this year Basingstoke ISP Cloud Nine and Tiscali UK both became subject to DDoS attacks. Both the motive and source of all these attacks remains unclear but their increasing prevalence this year is becoming a source of concern. ®

Related News

Cloud Nine blown away, blames hack attack
Zetnet rescues Cloud Nine
Tiscali attacked by DDoSers
UK web host downed by DDoS attack
Crackers exploit Cisco LAN switch flaw
ISS ranks Net vulnerabilities
Vendors sharpen tools to thwart DoS attacks

High performance access to file storage

More from The Register

next story
Dropbox defends fantastically badly timed Condoleezza Rice appointment
'Nothing is going to change with Dr. Rice's appointment,' file sharer promises
Audio fans, prepare yourself for the Second Coming ... of Blu-ray
High Fidelity Pure Audio – is this what your ears have been waiting for?
Did a date calculation bug just cost hard-up Co-op Bank £110m?
And just when Brit banking org needs £400m to stay afloat
MtGox chief Karpelès refuses to come to US for g-men's grilling
Bitcoin baron says he needs another lawyer for FinCEN chat
Zucker punched: Google gobbles Facebook-wooed Titan Aerospace
Up, up and away in my beautiful balloon flying broadband-bot
Apple DOMINATES the Valley, rakes in more profit than Google, HP, Intel, Cisco COMBINED
Cook & Co. also pay more taxes than those four worthies PLUS eBay and Oracle
It may be ILLEGAL to run Heartbleed health checks – IT lawyer
Do the right thing, earn up to 10 years in clink
prev story

Whitepapers

Top three mobile application threats
Learn about three of the top mobile application security threats facing businesses today and recommendations on how to mitigate the risk.
Combat fraud and increase customer satisfaction
Based on their experience using HP ArcSight Enterprise Security Manager for IT security operations, Finansbank moved to HP ArcSight ESM for fraud management.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Five 3D headsets to be won!
We were so impressed by the Durovis Dive headset we’ve asked the company to give some away to Reg readers.
SANS - Survey on application security programs
In this whitepaper learn about the state of application security programs and practices of 488 surveyed respondents, and discover how mature and effective these programs are.