https://www.jpcert.or.jp/wr/2010/wr103701.html

http://internet.watch.impress.co.jp/docs/news/20100930_397038.html

http://itpro.nikkeibp.co.jp/article/COLUMN/20100929/352415/

http://www.ipa.go.jp/security/fy22/reports/tech1-tg/indexa.html