Asterisk is hacking itself [duplicate]

Posted by Shirker on Server Fault See other posts from Server Fault or by Shirker
Published on 2013-10-28T15:06:02Z Indexed on 2013/10/28 15:57 UTC
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asterisk

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freepbx

This question already has an answer here:

How do I deal with a compromised server? 11 answers

I've got some strange logs on my asterisk (and there a lot of extensions were tried):

chan_sip.c: Failed to authenticate device 6006<sip:[email protected]>;tag=f106f3fe

but IP XX.XX.XX.39 is its OWN IP!

cat /etc/asterisk/* | grep 6006

returns nothing.

asterisk -rv
Asterisk 11.4.0

How its possible, that its hacks itself? And how could I trace, where it comes from?

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