Please help with an internet wifi hack to my MacBook Air

Can anyone help me get out of what’s going on here? Gregorys-Air-2 is the hackers false name for my MacBook Air

Apr 10 00:45:34 Gregorys-Air-2 syslogd[130]: ASL Sender Statistics

Apr 10 00:45:35 Gregorys-Air-2 syslogd[130]: Configuration Notice:

ASL Module "com.apple.cdscheduler" claims selected messages.

Those messages may not appear in standard system log files or in the ASL database.

Apr 10 00:45:35 Gregorys-Air-2 syslogd[130]: Configuration Notice:

ASL Module "com.apple.install" claims selected messages.

Those messages may not appear in standard system log files or in the ASL database.

Apr 10 00:45:35 Gregorys-Air-2 syslogd[130]: Configuration Notice:

ASL Module "com.apple.authd" sharing output destination "/var/log/asl" with ASL Module "com.apple.asl".

Output parameters from ASL Module "com.apple.asl" override any specified in ASL Module "com.apple.authd".

Apr 10 00:45:35 Gregorys-Air-2 syslogd[130]: Configuration Notice:

ASL Module "com.apple.authd" sharing output destination "/var/log/system.log" with ASL Module "com.apple.asl".

Output parameters from ASL Module "com.apple.asl" override any specified in ASL Module "com.apple.authd".

Apr 10 00:45:35 Gregorys-Air-2 syslogd[130]: Configuration Notice:

ASL Module "com.apple.authd" claims selected messages.

Those messages may not appear in standard system log files or in the ASL database.

Apr 10 00:45:35 Gregorys-Air-2 syslogd[130]: Configuration Notice:

ASL Module "com.apple.eventmonitor" claims selected messages.

Those messages may not appear in standard system log files or in the ASL database.

Apr 10 00:45:35 Gregorys-Air-2 syslogd[130]: Configuration Notice:

ASL Module "com.apple.mail" claims selected messages.

Those messages may not appear in standard system log files or in the ASL database.

Apr 10 00:45:35 Gregorys-Air-2 syslogd[130]: Configuration Notice:

ASL Module "com.apple.performance" claims selected messages.

Those messages may not appear in standard system log files or in the ASL database.

Apr 10 00:45:35 Gregorys-Air-2 syslogd[130]: Configuration Notice:

ASL Module "com.apple.iokit.power" claims selected messages.

Those messages may not appear in standard system log files or in the ASL database.

Apr 10 00:45:35 Gregorys-Air-2 syslogd[130]: Configuration Notice:

ASL Module "com.apple.contacts.ContactsAutocomplete" claims selected messages.

Those messages may not appear in standard system log files or in the ASL database.

Apr 10 00:45:35 Gregorys-Air-2 syslogd[130]: Configuration Notice:

ASL Module "com.apple.mkb" sharing output destination "/private/var/log/keybagd.log" with ASL Module "com.apple.mkb.internal".

Output parameters from ASL Module "com.apple.mkb.internal" override any specified in ASL Module "com.apple.mkb".