[CentOS] Centos 5.3 -> Apache - Under Attack ? Oh hell....
Neil Aggarwal
neil at JAMMConsulting.com
Wed Jun 3 04:02:38 UTC 2009
Hello:
If there are processes running on your machine
which you do not recognize, assume the machine has
been compromised. Take it offline and wipe it
immediately.
Neil
--
Neil Aggarwal, (832)245-7314, www.JAMMConsulting.com
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> -----Original Message-----
> From: centos-bounces at centos.org
> [mailto:centos-bounces at centos.org] On Behalf Of Linux Advocate
> Sent: Tuesday, June 02, 2009 10:23 PM
> To: CentOS mailing list
> Subject: [CentOS] Centos 5.3 -> Apache - Under Attack ? Oh hell....
>
>
> Guys, apache cpus usage is hitting 100% sometimes ( to such
> an extent that its very noticeable) on a box with just 8 users or so.
>
> i m getting this when i run 'top'. The worrying thing is
> seeing the work 'atack' under command
>
>
> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
> 23119 apache 15 0 964 556 472 S 0.7 0.0 0:03.68 atack
> 23479 apache 15 0 964 556 472 S 0.7 0.0 0:01.94 atack
> 22170 apache 15 0 964 560 472 S 0.3 0.0 0:05.23 atack
> 22375 apache 15 0 964 560 472 S 0.3 0.0 0:04.21 atack
> 22858 apache 15 0 964 560 472 S 0.3 0.0 0:02.87 atack
> 22997 apache 15 0 964 560 472 S 0.3 0.0 0:04.11 atack
> 22999 apache 15 0 964 560 472 S 0.3 0.0 0:02.22 atack
> 23007 apache 15 0 964 560 472 S 0.3 0.0 0:03.79 atack
> 23099 apache 15 0 964 556 472 S 0.3 0.0 0:02.18 atack
> 23101 apache 15 0 964 556 472 S 0.3 0.0 0:02.48 atack
> 23108 apache 15 0 964 556 472 S 0.3 0.0 0:03.59 atack
> 23109 apache 15 0 964 556 472 S 0.3 0.0 0:02.75 atack
> 23112 apache 15 0 972 504 412 S 0.3 0.0 0:04.70 atack
> 23115 apache 15 0 964 556 472 S 0.3 0.0 0:03.75 atack
> 23116 apache 15 0 964 556 472 S 0.3 0.0 0:02.80 atack
> 23121 apache 15 0 972 504 412 S 0.3 0.0 0:03.79 atack
> 23384 apache 15 0 964 556 472 S 0.3 0.0 0:01.63 atack
> 23389 apache 15 0 964 556 472 S 0.3 0.0 0:03.52 atack
> 23392 apache 15 0 964 556 472 S 0.3 0.0 0:01.61 atack
> 23397 apache 15 0 964 556 472 S 0.3 0.0 0:01.62 atack
> 23405 apache 15 0 964 556 472 S 0.3 0.0 0:03.64 atack
>
> When i 'ps -ef' i can see many lines as below;
>
> apache 24253 23378 0 10:54 ? 00:00:00 ./atack 100
> apache 24286 23378 0 10:59 ? 00:00:00 ./atack 100
> apache 24292 23378 0 11:00 ? 00:00:01 ./atack 100
> apache 24335 23378 0 11:01 ? 00:00:00 ./atack 100
> apache 24344 23378 0 11:01 ? 00:00:00 ./atack 100
> apache 24347 23378 0 11:02 ? 00:00:00 ./atack 100
> apache 24358 23378 0 11:04 ? 00:00:00 ./atack 100
>
>
> Hell, has my centos 5.3 box been hacked??? Help !!!!!!!!!!
>
>
>
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