Although no suspects have been identified, officials of the Undernet IRC network said they are cooperating with US federal law enforcement authorities in their criminal investigation.
In a statement released last week, Undernet administrators said the relentless DoS launch of bogus packets of data has led some service providers to terminate their agreements to host IRC servers on the Undernet network. In many cases, providers are still being immobilised after disconnecting servers.
"At this point, the future of the Undernet and IRC remains uncertain," according to the Undernet statement. "Providers are currently paying for the resources to provide a free IRC environment, but they cannot continue to do so if they suffer substantial losses of business revenue."
Also feeling the impact of the siege, the X and W service bots, which allow users to authenticate and complete channel registration without administrator assistance, continue to be down with no projected date for their return.
All Undernet IRC servers are privately owned and operated, often hosting IRC in return for the right to display the server company's text banners on the IRC network, said Jason Buchanan, senior Unix engineer at Navisite and administrator of two Undernet servers.