First Arrest by Perfect Dark, the Latest P2P Client

Different language, different application. That is not an exclusive phenomenon for web services like Facebook against Japanese big 3. The most popular P2P file sharing software on Japanese web is not BitTorrent.

First, it was western WinMX follower Winny. When Winny network caused chaos on society by virus (which uploaded private and enterprise files under Windows’ “My Documents” from companies and government organizations) and arrests.

The development of Winny was stopped, and P2P users migrated to Share. After some allegations by uploading copyrighted movies on Share, Perfect Dark, which began at end of 2006 and boasts its higher anonymity, has been taking the position of the former two.


screenshot by a blogger shinn_asuka_impulse

On January 27th, the first person who distributed copyrighted animation films over Perfect Dark network was arrested in Saitama prefecture. [J]

From the beginning of this year 2010, downloading illegal contents became crime by revised copyright law. Until 2009, only uploading side was illegal. However, this accusation is not by this extended download, but by upload.

Japanese P2P Filesharing Network Being Attacked From Cloud

As same as other fields, for point-to-point(P2P) file sharing, there are Japanese counterpart of Kazaa/Limewire/Torrent. Once it was Winny, but after the developer of Winny was prosecuted for making a file sharing application which possibly leads copyrighted material distribution and the development ceased, the open source successor Share took the position of the most popular file sharing platform for Japanese speakers.

Today, on the gigantic bulletin board 2-channel(2chan)’s “Download Ita” [J] (download board), many reports by Share users are observed, their Share process had been accessed more than 20 requests simultaneously from servers on Amazon EC2 cloud, resulted in the process freeze.

share-dos-by-amazon-ec2

someone’s Share’s screenshot (via 2ch)

On 2 channel, it is said that this flood of access paralyses Share network, many Share clients likely went down.

There are a lot of discussion threads are up on several different boards on 2chan (it is hard to keep those URLs, as 2ch thread stops after 1000 messages and then stored into archive servers, you have to seek the next thread manually), and users are sharing info such like blocking Amazon EC2 IP addresses, applying anti SYN-floot patch, etc. However, as not all file sharing users are computer experts, if this type of flooding access continues it is possible that the Share P2P network will be shrunk.

No attackers nor his/her intention remain unclear yet.

See Also:

Share – Wikipedia [J]