Disturbing messages in pyTivo log

I have started to get the follwing messages in the pyTivo I use to push recordings to a remote TiVo:

Code:

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INFO:pyTivo:185.53.168.141 [01/May/2015 13:15:00] "POST http://ift.tt/1IxveFu
o:25000/ HTTP/1.1" 403 -
INFO:pyTivo:185.53.168.141 [01/May/2015 13:15:21] code 400, message Bad request
syntax ('\x05\x01\x00')
INFO:pyTivo:185.53.168.141 [01/May/2015 13:15:21] "♣☺ " 400 -

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Is someone attempting to hack into my system?