[asterisk-users] Attack problem

[Khaled W. Chehab]

Ircd  is not installed and cant be located in all system ,any one know or
have an idea how do they infect my system,
Any bug in asterisknow?
How to find the script that initiates this invites ?
135.307281 192.168.138.56 -> 218.75.79.17 TCP 36578 > ircd [ACK] Seq=36
Ack=111 Win=5840 Len=0
135.307434 192.168.138.56 -> 218.75.79.17 TCP 36578 > ircd [FIN, ACK] Seq=36
Ack=111 Win=5840 Len=0
135.309188 218.75.79.17 -> 192.168.138.56 TCP ircd > 36578 [FIN, ACK]
Seq=111 Ack=1 Win=4096 Len=0
135.309211 192.168.138.56 -> 218.75.79.17 TCP 36578 > ircd [ACK] Seq=37
Ack=112 Win=5840 Len=0
135.334037 192.168.138.56 -> 192.168.5.2  DNS Standard query A
irc3.mysteryaddict.com
135.334496  192.168.5.2 -> 192.168.138.56 DNS Standard query response A
87.229.45.226
135.334657 192.168.138.56 -> 87.229.45.226 TCP 53718 > ircd [SYN] Seq=0
Win=5840 Len=0 MSS=1460 TSV=1532274 TSER=0 WS=7
135.342359 218.75.79.17 -> 192.168.138.56 TCP ircd > 42802 [SYN, ACK] Seq=0
Ack=1 Win=1460 Len=0 MSS=1380
135.342399 192.168.138.56 -> 218.75.79.17 TCP 42802 > ircd [ACK] Seq=1 Ack=1
Win=5840 Len=0
135.342554 192.168.138.56 -> 218.75.79.17 IRC Request

Regards


-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of A J Stiles
Sent: Friday, December 17, 2010 6:20 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] Attack problem

On Friday 17 Dec 2010, Khaled W. Chehab wrote:
> HI,
>
> My system been attacked from someone I guess, kindly check the link 
> below
>
> How can I stop the ircd attack

# /etc/init.d/ircd stop
# chmod -x  /etc/init.d/ircd

Should do the business  :)

--
AJS

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