Gentoo Archives: gentoo-server

From: Richard Yumul <rmy@×××××××××.com>
To: gentoo-server@l.g.o
Subject: Re: [gentoo-server] alarming vpopmail log entries
Date: Tue, 09 Nov 2004 16:27:32
Message-Id: 4190EFED.5090407@sdtechnix.com
In Reply to: [gentoo-server] alarming vpopmail log entries by Ben Munat
1 Based on your log entries, it looks like somebody discovered your
2 'postmaster@×××××.com' password and is using it to relay messages.
3
4 Did you check your qmail-send log around the same time? It would have
5 more details, showing if it's relaying emails.
6
7 You also might try changing your postmaster's password to something
8 really cryptic, & see if those log entries still appear.
9
10 HTH,
11 Rich Yumul
12
13
14 Ben Munat wrote:
15
16 > I posted the following on the weekend and it seems to have been
17 > overlooked. If no one really has any ideas, I'm sorry for the repost,
18 > but, I would think that someone here has used vpopmail... I'm really
19 > hoping that this is something that vpopmail puts in the logs normally!
20 >
21 > Here's my previous post:
22 >
23 > Finally got around to installing a log monitoring tool (logwatch) this
24 > morning. I'm not sure why it doesn't give me any output for any services
25 > other than syslogd (maybe cuz all the other services are dumping into
26 > /var/log/messages?), but while looking through /var/log/messages for
27 > stuff that logwatch might find, I saw something that made my heart skip
28 > a beat.
29 >
30 > There are a number of vpopmail entries like this:
31 >
32 > Nov 6 10:21:51 munat vpopmail[29101]: vchkpw-smtp: password fail
33 > postmaster@×××××.com:80.104.163.225
34 > Nov 6 10:21:57 munat vpopmail[29103]: vchkpw-smtp: (PLAIN) login
35 > success postmaster@×××××.com:80.104.163.225
36 >
37 > Always in pairs like that... mostly with different addresses, and
38 > addresses that I don't recognize. My brother and I are the only people
39 > who should be able to log into the postmaster account, and we rarely do
40 > so, so...
41 >
42 > The question is, has my vpopmail been hacked or is this somehow a
43 > typical vpopmail occurrence? Going back through messages, there are
44 > entries like this every day. So maybe, for some strange reason vpopmail
45 > prints this entry in the logs periodically?
46 >
47 > Ben
48 >
49 >
50 >
51 >
52
53 --
54 ------------------------------------------------------------------------
55 Richard M Yumul
56 rmy@×××××××××.com <mailto:rmy@×××××××××.com>
57 SDTechnix
58 http://www.sdtechnix.com
59 ------------------------------------------------------------------------

Replies

Subject Author
Re: [gentoo-server] alarming vpopmail log entries Ben Munat <bent@×××××.com>