[asterisk-users] Attempts to hack Asterisk - What do these lines means

[bruce bruce]

Hi Everyone,

Like always, here are IPs from China that try to hack an Asterisk server.
Can someone please explain what is happening or what the hacker is trying to
reach:

02/10/2010 11:10 SIP/113.105.152.51-000000fb sip "sip" <sip> s ANSWERED 13
02/10/2010 11:10 SIP/113.105.152.51-000000fe sip "sip" <sip> s ANSWERED 13
02/10/2010 11:10 SIP/113.105.152.51-000000fc sip "sip" <sip> s ANSWERED 13
02/10/2010 11:10 SIP/113.105.152.51-000000fd sip "sip" <sip> s ANSWERED 13
02/10/2010 11:10 SIP/113.105.152.51-000000ff sip "sip" <sip> s ANSWERED 13
02/10/2010 11:10 SIP/113.105.152.51-00000100 sip "sip" <sip> s ANSWERED 13
02/10/2010 11:17 SIP/222.73.204.198-00000101 sip "sip" <sip> s ANSWERED 13
02/10/2010 11:17 SIP/222.73.204.198-00000102 sip "sip" <sip> s ANSWERED 13
02/10/2010 11:17 SIP/222.73.204.198-00000103 sip "sip" <sip> s ANSWERED 13
02/10/2010 11:17 SIP/222.73.204.198-00000104 sip "sip" <sip> s ANSWERED 13
02/10/2010 11:17 SIP/222.73.204.198-00000105 sip "sip" <sip> s ANSWERED 13
02/10/2010 11:17 SIP/222.73.204.198-00000106 sip "sip" <sip> s ANSWERED 13
02/10/2010 11:17 SIP/222.73.204.198-00000107 sip "sip" <sip> s ANSWERED 13
02/10/2010 11:17 SIP/222.73.204.198-00000108 sip "sip" <sip> s ANSWERED 13
02/10/2010 11:17 SIP/222.73.204.198-00000109 sip "sip" <sip> s ANSWERED 13


Thanks
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