Japanese virus writer arrested.. again

Filed Under: Law & order, Malware

Ika Tako icon
According to media reports, a previously convicted Japanese virus writer has been arrested over allegations that he has again distributed a virus.

The 27-year-old is accused of writing malware known locally as "ika-tako" (squid-octopus) which was spread via the Winny peer-to-peer file-sharing network, changing the icons of infected computers to those of an orange cartoon octopus.

He is said to have told investigating police officers that he infected approximately 50,000 computers with the malware.

What's particularly fascinating about this case is that it isn't the first time that this particular virus writer has caught the attention of the computer crime authorities.

Back in 2008, he became the first virus writer ever arrested in Japan after distributing the Pirlames Trojan (dubbed "Harada" in the local press) via Winny that displayed images of popular anime characters while wiping music and movie files.

As a result of that earlier incident, he was sentenced to two years in prison, suspended for three years. If found guilty of this latest attack it is unlikely that the court will look favourably on a repeat offender.

By the way, before you ask - I'm not sure what Sophos detects the "ika-tako" malware as (or indeed, if we detect it at all). With 60,000 new examples of malware being seen by our labs every day it can be tricky to know if we detect a particular sample if all we have to go in is a name that appears to have been given to it by the newspapers.

But if I find out I'll let you know. :)

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About the author

Graham Cluley runs his own award-winning computer security blog, and is a veteran of the anti-virus industry having worked for a number of security companies since the early 1990s. Now an independent security analyst, he regularly makes media appearances and gives computer security presentations. Send Graham an email, subscribe to his updates on Facebook, follow him on Twitter and App.net, and circle him on Google Plus for regular updates.