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On Thu 06 Oct 2011 09:06:06 PM IST, Alberto Luaces wrote: |
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> Nilesh Govindarajan writes: |
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> |
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>> One of the servers I manage has a strange problem. |
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>> |
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>> Every 24h, someone starts a process shows up as perl in the list, but |
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>> launching command is /usr/sbin/httpd. |
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>> It shows just one process, but when I run something like this: |
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>> |
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>> ps -C perl -o cmd,pid |
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>> |
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>> I get some 5-6 processes alternatively with cmd as /usr/sbin/httpd or |
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>> /usr/bin/perl. |
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>> |
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>> The even more interesting thing is, /usr/sbin/httpd does not exist. |
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>> I suspect a rootkit, but chkrootkit & rkhunter reported nothing. |
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>> |
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>> Also, I found a mysterious file: /tmp/ips.txt with following content: |
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>> xxx.xxx.xxx.xxx |
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>> 127.0.0.1 |
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>> addr:xxx.xxx.xxx.xxx |
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>> addr: |
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>> addr:127.0.0.1 |
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>> addr: |
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>> |
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>> Somebody is aware of a malware/rootkit which creates such files? |
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> |
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> I had some of that recently. The attacker used a instance of phpmyadmin |
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> to inject into its URL a wget command to download a perl script from |
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> another site. Look for `wget' into apache logs. |
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> |
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|
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@all |
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Apache was never installed & I don't see any reason to install it |
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because nginx satisfies my needs. I grepped for the string wget in all |
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logs and php files, found some, but they were for libssh2 in wordpress |
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code. |
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@Michael, |
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I thought of doing that, but before I discovered the file, I'd already |
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killed the processes. Will check later when the process is relaunched |
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sometime later. |
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|
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-- |
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Nilesh Govindarajan |
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http://nileshgr.com |
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