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Nilesh Govindarajan writes: |
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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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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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Alberto |
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