Up to Scan Engine (SSE) 5.2.8, the login and password for the internal LiveUpdate FTP server are encrypted right after the initial Java LiveUpdate (JLU) execution; however, from SSE5.2.10 and onward, they are no longer encrypted.
This is by-design.
Scan Engine 5.2.10 and onward uses its own liveupdate.conf separate from the JLU's. liveupdate.conf will be encrypted only if the file is JLU's.
SSE5.2.8 and earlier's liveupdate.conf
SSE5.2.10 and later's liveupdate.conf
hosts/0/login=<plain text strings>
hosts/0/password=<plain text strings>
liveupdate.conf can be encrypted if manually executed with "-r" option.