(The code is written in C and Delphi, and covers anti-virus engine, as well as anti-phishing, anti-dialer, anti-spam, parental control and other modules. According to the release notes inside the package, the leaked source code was made by Kaspersky Lab in 2008 and past changes to their dates from December 2007.
KASPERSKY.AV.2008.SRCS.ELCRABE.torrent
.....)