MailScanner broken suddenly?!?!

[Rick Cooper]

  _____  

From: mailscanner-bounces at lists.mailscanner.info
[mailto:mailscanner-bounces at lists.mailscanner.info] On Behalf Of Gottschalk,
David
Sent: Friday, July 20, 2007 2:06 PM
To: MailScanner discussion
Subject: MailScanner broken suddenly?!?!


I have 5 MailScanner machines.
 
I had to do some configuration changes, so I restarted them. One of them now
appears to be completely hosed. I've checked my configuration, and can't
figure out what is going on. I don't see anything wrong at all. 
 
-sh-3.00$ sudo /usr/sbin/MailScanner --lint
Checking version numbers...
Version installed (4.60.8) does not match version stated in
MailScanner.conf file (4.57.6), you may want to run upgrade_MailScanner_conf
to ensure your MailScanner.conf file contains all the latest settings.
 
Checking for SpamAssassin errors (if you use it)...
Using SpamAssassin results cache
Connected to SpamAssassin cache database
SpamAssassin reported no errors.
Using locktype = posix
Creating hardcoded struct_flock subroutine for linux (Linux-type)
MailScanner.conf says "Virus Scanners = auto"
Found these virus scanners installed: bitdefender, clamavmodule

 
Here is what is going on:
 
1. MailScanner starts, but just sits there does nothing:
 
root     22553     1  0 13:58 ?        00:00:00 MailScanner: master waiting
for children, sleeping
root     22554 22553 70 13:58 ?        00:00:35 MailScanner: starting
children
root     22624 22553 69 13:58 ?        00:00:31 MailScanner: starting
children
root     22680 22553 67 13:58 ?        00:00:27 MailScanner: starting
children
root     22733 22553 73 13:58 ?        00:00:26 MailScanner: starting
children
root     22780 22553 44 13:58 ?        00:00:13 MailScanner: starting
children
root     22831 22553 42 13:58 ?        00:00:10 MailScanner: starting
children
root     22884 22553 47 13:58 ?        00:00:09 MailScanner: starting
children
root     22957 22553 44 13:59 ?        00:00:07 MailScanner: starting
children
root     23005 22553 31 13:59 ?        00:00:03 MailScanner: starting
children
root     23054 22553 49 13:59 ?        00:00:02 MailScanner: starting
children

If I trace a childre process, here is what it is doing over and over:
 
sudo strace -p 19920
Process 19920 attached - interrupt to quit
read(12, "b560c3b9f08759aa3aa90:Trojan.Spy"..., 4096) = 4096
read(12, ":Trojan.Spy-3720\n353280:f604589b"..., 4096) = 4096
read(12, "55d8571268b7:Trojan.Clicker-133\n"..., 4096) = 4096
read(12, "5b7b476404e1ea6dc24d48e50bdfa:Tr"..., 4096) = 4096
read(12, "ba8f709e8b588009a34ee19ee1:Troja"..., 4096) = 4096
read(12, "d5:Trojan.Spy-3998\n284672:7801e5"..., 4096) = 4096
read(12, "6\n12288:6bfa649c48fc5982b231a2bb"..., 4096) = 4096
brk(0x4f23000)                          = 0x4f23000
read(12, "n.Spy-4128\n21504:3b072d4e76b7173"..., 4096) = 4096
read(12, "bbe4f7d647f109b5317dd8794715:Tro"..., 4096) = 4096
read(12, "n.Downloader-4997\n36864:bcc236c3"..., 4096) = 4096
read(12, "der-5167\n29696:f7d986ddcc013d8e0"..., 4096) = 4096
read(12, "f7e121997:Trojan.Downloader-5070"..., 4096) = 4096
read(12, ".Downloader-5107\n10240:efd91a6ea"..., 4096) = 4096
read(12, "ec7:Trojan.Downloader-4916\n2048:"..., 4096) = 4096
read(12, "nloader-5244\n4768:096cc4cd04d5cf"..., 4096) = 4096
read(12, ":Trojan.Bancos-3284\n271360:2bc5f"..., 4096) = 4096
read(12, "ncos-3342\n377344:04230b7482e189a"..., 4096) = 4096
read(12, "an.Spy-4204\n35840:4c8d2cbaf9ccaf"..., 4096) = 4096
read(12, "jan.Bancos-3492\n659968:49df0eba0"..., 4096) = 4096
read(12, "0:25f16f5f7ee84dee66f40f6c86e9b8"..., 4096) = 4096
read(12, "86:Trojan.Small-1634\n229888:3579"..., 4096) = 4096
read(12, "4d30b8cfcfe247337e424db964d816:T"..., 4096) = 4096
read(12, "576:3c44fb4c3e7a07aa1d49ce91c492"..., 4096) = 4096
read(12, "082cd8ac62e6878348b79:Trojan.Ban"..., 4096) = 4096

 
2. Strangely enough, if I start just MailScanner it works fine (with
sendmail not running)
 
3. If I start MailScanner with sendmail to, it will just hang there as
described. If I stop it, the master process dies for MailScanner, but the
children hang.
 
4. I did have this problem, but I resolved it quickly by changing the option
in MailScanner.conf to look for *.inc files.
 
Jul 20 13:28:37 mr1 MailScanner[9747]: None of the files matched by the
"Monitors For ClamAV Updates" patterns exist! 
Jul 20 13:28:47 mr1 MailScanner[8644]: None of the files matched by the
"Monitors For ClamAV Updates" patterns exist! 

 
Any ideas? I'm banging my head.
 
Need to watch only looking for .cvd or only looking for .inc (dir) because
at one time or another only one type may exist. Try running clamscan and see
if it reports a hosed db if so remove the damaged db (either .cvd or .inc
dir) and run freshclam. If you are using  a script to d/l 3d party sigs make
sure you use one that tests the db before installing it into the clamav db
dir
 
Rick


--
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.


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