Security Incidents mailing list archives
Re: Weird SSH attack last night and this morning (still ongoing)
From: Brent Kearney <brentk () birs ca>
Date: Wed, 7 May 2008 12:01:41 -0600
I noticed the same thing starting yesterday. On the surface it appears to be a distributed attack from a botnet. Attempts are made at 2-3 minute intervals. At a glance, they look like random IPs, but out of 436 attempts since yesterday evening, there are only 198 unique source IP addresses.
Has anyone checked out what data they are sending for a password? Brent On May 7, 2008, at 06:27 , Gary Baribault wrote:
I don't know what is going on last night and this morning ... I have three 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 a Web/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 are unknown to DenyHosts but there was only one login attemps per adress and it 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 the other two had about 200 attempts .. all of them with only 1 try with the user 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
-- Systems Analyst Banff International Research Station http://www.birs.ca +1 403 763 6997
Current thread:
- Re: Weird SSH attack last night and this morning (still ongoing), (continued)
- 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) Blaine Fleming (May 07)
- Message not available
- 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)
- Message not available
- Re: Weird SSH attack last night and this morning (still ongoing) Gary Baribault (May 07)
- Message not available
- 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)
- Message not available
- Re: Weird SSH attack last night and this morning (still ongoing) Valdis . Kletnieks (May 16)
- Message not available
- Re: Weird SSH attack last night and this morning (still ongoing) Valdis . Kletnieks (May 16)