Security Incidents mailing list archives
Re: Weird SSH attack last night and this morning (still ongoing)
From: Bartholomew Mallio <bmallio () mail rockefeller edu>
Date: Wed, 07 May 2008 14:02:59 -0400
Hi everyone--In the last month, I've started to see distributed / co-ordinated SSH login attempts not unlike the one Gary is describing. However, I have seen a handful of hosts attempt this, but have yet to see a really large number attempt one password each.
Thanks, --bart Gary Baribault wrote:
I'm hit all the time too, but it's usually scripted, and they'll try 6 - 8 logins before my DenyHosts script bans the IP address. In this case, there is only one login attempt, and it with root .. then that source IP doesn't try again .. it's as if someone just got some default password or maybe a blank one and has asked an entire botnet to try it once for all machines on the Internet .. it's weird!Gary B bigbadhoss () gmail com wrote:These happen all the time on my servers, probably just backgroundnoise, but it could be something else.Sent from my Verizon Wireless BlackBerry -----Original Message----- From: Gary Baribault <gary () baribault net> Date: Wed, 07 May 2008 08:27:15 To:incidents () securityfocus com Subject: Weird SSH attack last night and this morning (still ongoing) I don't know what is going on last night and this morning ... I havethree Linux servers facing the Internet, two on cable modems and another on a static IP/commercial connection and this last one is a gateway to aWeb/FTP/SMTP/Pop3/NTP Linux based system. I have DenyHosts installed on all three and have blocked about 75 attempts .. from known compromised adresses .. The log shows (obviously) that there where even more attempts from adresses that areunknown to DenyHosts but there was only one login attemps per adress andit was with the Root account .. which is obviously blocked in my sshd config .. Of the three machines, one of them only had about 10 attempts, but theother two had about 200 attempts .. all of them with only 1 try with theuser Root .. Is any one else seing this? or am I being targeted? This is still going on now .. and it started arround 10:00 last night GMT+4
Current thread:
- Weird SSH attack last night and this morning (still ongoing) Gary Baribault (May 07)
- Re: Weird SSH attack last night and this morning (still ongoing) Robert Taylor (May 07)
- RE: Weird SSH attack last night and this morning (still ongoing) Erin Carroll (May 07)
- Re: Weird SSH attack last night and this morning (still ongoing) Robert Taylor (May 07)
- RE: Weird SSH attack last night and this morning (still ongoing) Erin Carroll (May 07)
- RE: Weird SSH attack last night and this morning (still ongoing) Erin Carroll (May 07)
- Re: Weird SSH attack last night and this morning (still ongoing) Robert Taylor (May 07)
- Re: Weird SSH attack last night and this morning (still ongoing) Blaine Fleming (May 07)
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- Re: Weird SSH attack last night and this morning (still ongoing) Gary Baribault (May 07)
- Re: Weird SSH attack last night and this morning (still ongoing) Bartholomew Mallio (May 07)
- Re: Weird SSH attack last night and this morning (still ongoing) Gary Baribault (May 07)
- RE: Weird SSH attack last night and this morning (still ongoing) Erin Carroll (May 07)
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- Re: Weird SSH attack last night and this morning (still ongoing) Gary Baribault (May 07)
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- Re: Weird SSH attack last night and this morning (still ongoing) Valdis . Kletnieks (May 07)
- Re: Weird SSH attack last night and this morning (still ongoing) Gary Baribault (May 07)
- Re: Weird SSH attack last night and this morning (still ongoing) Gary Baribault (May 14)
- Re: Weird SSH attack last night and this morning (still ongoing) Valdis . Kletnieks (May 15)
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- Re: Weird SSH attack last night and this morning (still ongoing) Valdis . Kletnieks (May 16)