| 1 |
One of the servers I manage has a strange problem. |
| 2 |
|
| 3 |
Every 24h, someone starts a process shows up as perl in the list, but |
| 4 |
launching command is /usr/sbin/httpd. |
| 5 |
It shows just one process, but when I run something like this: |
| 6 |
|
| 7 |
ps -C perl -o cmd,pid |
| 8 |
|
| 9 |
I get some 5-6 processes alternatively with cmd as /usr/sbin/httpd or |
| 10 |
/usr/bin/perl. |
| 11 |
|
| 12 |
The even more interesting thing is, /usr/sbin/httpd does not exist. |
| 13 |
I suspect a rootkit, but chkrootkit & rkhunter reported nothing. |
| 14 |
|
| 15 |
Also, I found a mysterious file: /tmp/ips.txt with following content: |
| 16 |
xxx.xxx.xxx.xxx |
| 17 |
127.0.0.1 |
| 18 |
addr:xxx.xxx.xxx.xxx |
| 19 |
addr: |
| 20 |
addr:127.0.0.1 |
| 21 |
addr: |
| 22 |
|
| 23 |
Somebody is aware of a malware/rootkit which creates such files? |
| 24 |
|
| 25 |
-- |
| 26 |
Nilesh Govindarajan |
| 27 |
http://nileshgr.com |
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