It is false positive. Encryption algorithm caused it. Ironic part is that OrangeCD doesn't even use this protection anymore! It is included as part of automatic license upgrade for user convenience.
Out of curiosity, can you check the following installer with your build of Kaspersky? It was created next day:
[url]http://orangecd.s3.amazonaws.com/orgcdfull_mp3fix.exe[/url]