Lots of console messages

Console has been opening up lots recently and I am not completely sure what it is but some of the messages have me worried. Is it some type of virus? It appears to be sending messages constantly when my computer is on. It has messages like:

1/29/13 11:08:08.062 PM WindowServer[69]: CGXRegisterWindowWithSystemStatusBar: window 11 already registered

1/29/13 11:08:55.004 PM mdworker[23579]: Unable to talk to lsboxd

1/29/13 11:08:55.008 PM mdworker[23580]: Unable to talk to lsboxd

1/29/13 11:08:55.084 PM sandboxd[23581]: ([23579]) mdworker(23579) deny mach-lookup com.apple.ls.boxd

1/29/13 11:08:55.092 PM sandboxd[23581]: ([23580]) mdworker(23580) deny mach-lookup com.apple.ls.boxd

1/29/13 11:08:55.000 PM kernel[0]: Sandbox: sandboxd(23581) deny mach-lookup com.apple.coresymbolicationd

Should I be worried? Is this melicious? What should I do?