Webserver compromised, strange processes running
0
So currently my debian server is generating large amount of outgoing traffic. Most likely compromised and used to attack other targets.
The top command shows this
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
15913 www-data 20 0 23268 920 696 R 7.0 0.1 525:25.24 -
10960 www-data 20 0 23268 2272 748 R 6.7 0.2 6137:34 -
10963 www-data 20 0 23268 2224 736 R 6.7 0.2 116:30.51 -
10972 www-data 20 0 23268 2368 736 R 6.7 0.2 116:16.23 -
10975 www-data 20 0 23268 2312 736 R 6.7 0.2 116:16.52 -
13509 www-data 20 0 10416 188 168 R 6.7 0.0 1242:09 64
15916 www-data 20 0 23268 2344 744 R 6.7 0.2 116:21.48 -
15925 www-data 20 0 23268 2336 744 R 6.7 0.2 116:21.37 -
15928 www-data 20 0 23268 2264 744 R 6.7 0.2 116:21.44 -
17906 www-data 20 0 23268 2276 748 R 6.7 0.2 115:09.06 -
18191 www-data 20 0 10416 224 204 R 6.7 0.0 275:54.55 64
17893 www-data 20 0 23268 2288 748 R 6.3 0.2 115:09.14 -
19789 www-data 20 0 23268 1124 708 R 6.3 0.1 19:33.81 -
26644 www-data 20 0 258m 17m 7108 S 4.7 1.7 0:09.78 apache2
26754 www-data 20 0 256m 11m 4900 R 3.0 1.1 0:00.72 apache2
2832 mysql 20 0 748m 75m 3012 S 1.7 7.5 194:48.84 mysqld
17890 www-data 20 0 29440 2456 852 S 0.7 0.2 8:26.73 -
17903 www-data 20 0 29440 2452 852 S 0.7 0.2 8:27.18 -
19786 www-data 20 0 29440 2452 852 S 0.7 0.2 6:03.52 -
19773 www-data 20 0 29440 2452 852 S 0.3 0.2 6:03.28 -
19776 www-data 20 0 23268 2304 708 S 0.3 0.2 1:05.50 -
20044 www-data 20 0 23268 2364 708 S 0.3 0.2 1:02.34 -
26760 www-data 20 0 23268 2332 712 S 0.3 0.2 1520:05 -
26765 tyron 20 0 79820 1608 780 S 0.3 0.2 0:00.05 sshd
27145 www-data 20 0 23268 2368 696 S 0.3 0.2 4:00.71 -
1 root 20 0 10656 124 100 S 0.0 0.0 0:04.71 init
2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthreadd
What are these processes that have '-' as command? How can I track down the source?
Apparently the attack comes through the http server since www-data is the user, but how? why? where? o.O
top
asked Mar 26 '16 at 18:26
TyronTyron
1033
add a comment |
0
So currently my debian server is generating large amount of outgoing traffic. Most likely compromised and used to attack other targets.
The top command shows this
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
15913 www-data 20 0 23268 920 696 R 7.0 0.1 525:25.24 -
10960 www-data 20 0 23268 2272 748 R 6.7 0.2 6137:34 -
10963 www-data 20 0 23268 2224 736 R 6.7 0.2 116:30.51 -
10972 www-data 20 0 23268 2368 736 R 6.7 0.2 116:16.23 -
10975 www-data 20 0 23268 2312 736 R 6.7 0.2 116:16.52 -
13509 www-data 20 0 10416 188 168 R 6.7 0.0 1242:09 64
15916 www-data 20 0 23268 2344 744 R 6.7 0.2 116:21.48 -
15925 www-data 20 0 23268 2336 744 R 6.7 0.2 116:21.37 -
15928 www-data 20 0 23268 2264 744 R 6.7 0.2 116:21.44 -
17906 www-data 20 0 23268 2276 748 R 6.7 0.2 115:09.06 -
18191 www-data 20 0 10416 224 204 R 6.7 0.0 275:54.55 64
17893 www-data 20 0 23268 2288 748 R 6.3 0.2 115:09.14 -
19789 www-data 20 0 23268 1124 708 R 6.3 0.1 19:33.81 -
26644 www-data 20 0 258m 17m 7108 S 4.7 1.7 0:09.78 apache2
26754 www-data 20 0 256m 11m 4900 R 3.0 1.1 0:00.72 apache2
2832 mysql 20 0 748m 75m 3012 S 1.7 7.5 194:48.84 mysqld
17890 www-data 20 0 29440 2456 852 S 0.7 0.2 8:26.73 -
17903 www-data 20 0 29440 2452 852 S 0.7 0.2 8:27.18 -
19786 www-data 20 0 29440 2452 852 S 0.7 0.2 6:03.52 -
19773 www-data 20 0 29440 2452 852 S 0.3 0.2 6:03.28 -
19776 www-data 20 0 23268 2304 708 S 0.3 0.2 1:05.50 -
20044 www-data 20 0 23268 2364 708 S 0.3 0.2 1:02.34 -
26760 www-data 20 0 23268 2332 712 S 0.3 0.2 1520:05 -
26765 tyron 20 0 79820 1608 780 S 0.3 0.2 0:00.05 sshd
27145 www-data 20 0 23268 2368 696 S 0.3 0.2 4:00.71 -
1 root 20 0 10656 124 100 S 0.0 0.0 0:04.71 init
2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthreadd
What are these processes that have '-' as command? How can I track down the source?
Apparently the attack comes through the http server since www-data is the user, but how? why? where? o.O
top
asked Mar 26 '16 at 18:26
TyronTyron
1033
what does the apache logs say ?
– PKumar
Mar 26 '16 at 18:32
you can get more information from the running processes from/proc/[PID]/status, there you could see the parent process, for example, and try to get some more information from where is it coming from (my motto: procfs is your friend)
– dave_alcarin
Mar 26 '16 at 18:33
Thank you, /procc/[pid] tells me these are perl processes run from /tmp
– Tyron
Mar 26 '16 at 18:37
To build on @dave_alcarin 's comment, you can find out a lot of what the process is in/proc/[PID], such as what the running binary actually is. See tldp.org/LDP/Linux-Filesystem-Hierarchy/html/proc.html
– Andrew Henle
Mar 26 '16 at 18:38
add a comment |
0
0
0
So currently my debian server is generating large amount of outgoing traffic. Most likely compromised and used to attack other targets.
The top command shows this
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
15913 www-data 20 0 23268 920 696 R 7.0 0.1 525:25.24 -
10960 www-data 20 0 23268 2272 748 R 6.7 0.2 6137:34 -
10963 www-data 20 0 23268 2224 736 R 6.7 0.2 116:30.51 -
10972 www-data 20 0 23268 2368 736 R 6.7 0.2 116:16.23 -
10975 www-data 20 0 23268 2312 736 R 6.7 0.2 116:16.52 -
13509 www-data 20 0 10416 188 168 R 6.7 0.0 1242:09 64
15916 www-data 20 0 23268 2344 744 R 6.7 0.2 116:21.48 -
15925 www-data 20 0 23268 2336 744 R 6.7 0.2 116:21.37 -
15928 www-data 20 0 23268 2264 744 R 6.7 0.2 116:21.44 -
17906 www-data 20 0 23268 2276 748 R 6.7 0.2 115:09.06 -
18191 www-data 20 0 10416 224 204 R 6.7 0.0 275:54.55 64
17893 www-data 20 0 23268 2288 748 R 6.3 0.2 115:09.14 -
19789 www-data 20 0 23268 1124 708 R 6.3 0.1 19:33.81 -
26644 www-data 20 0 258m 17m 7108 S 4.7 1.7 0:09.78 apache2
26754 www-data 20 0 256m 11m 4900 R 3.0 1.1 0:00.72 apache2
2832 mysql 20 0 748m 75m 3012 S 1.7 7.5 194:48.84 mysqld
17890 www-data 20 0 29440 2456 852 S 0.7 0.2 8:26.73 -
17903 www-data 20 0 29440 2452 852 S 0.7 0.2 8:27.18 -
19786 www-data 20 0 29440 2452 852 S 0.7 0.2 6:03.52 -
19773 www-data 20 0 29440 2452 852 S 0.3 0.2 6:03.28 -
19776 www-data 20 0 23268 2304 708 S 0.3 0.2 1:05.50 -
20044 www-data 20 0 23268 2364 708 S 0.3 0.2 1:02.34 -
26760 www-data 20 0 23268 2332 712 S 0.3 0.2 1520:05 -
26765 tyron 20 0 79820 1608 780 S 0.3 0.2 0:00.05 sshd
27145 www-data 20 0 23268 2368 696 S 0.3 0.2 4:00.71 -
1 root 20 0 10656 124 100 S 0.0 0.0 0:04.71 init
2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthreadd
What are these processes that have '-' as command? How can I track down the source?
Apparently the attack comes through the http server since www-data is the user, but how? why? where? o.O
top
asked Mar 26 '16 at 18:26
TyronTyron
1033
So currently my debian server is generating large amount of outgoing traffic. Most likely compromised and used to attack other targets.
The top command shows this
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
15913 www-data 20 0 23268 920 696 R 7.0 0.1 525:25.24 -
10960 www-data 20 0 23268 2272 748 R 6.7 0.2 6137:34 -
10963 www-data 20 0 23268 2224 736 R 6.7 0.2 116:30.51 -
10972 www-data 20 0 23268 2368 736 R 6.7 0.2 116:16.23 -
10975 www-data 20 0 23268 2312 736 R 6.7 0.2 116:16.52 -
13509 www-data 20 0 10416 188 168 R 6.7 0.0 1242:09 64
15916 www-data 20 0 23268 2344 744 R 6.7 0.2 116:21.48 -
15925 www-data 20 0 23268 2336 744 R 6.7 0.2 116:21.37 -
15928 www-data 20 0 23268 2264 744 R 6.7 0.2 116:21.44 -
17906 www-data 20 0 23268 2276 748 R 6.7 0.2 115:09.06 -
18191 www-data 20 0 10416 224 204 R 6.7 0.0 275:54.55 64
17893 www-data 20 0 23268 2288 748 R 6.3 0.2 115:09.14 -
19789 www-data 20 0 23268 1124 708 R 6.3 0.1 19:33.81 -
26644 www-data 20 0 258m 17m 7108 S 4.7 1.7 0:09.78 apache2
26754 www-data 20 0 256m 11m 4900 R 3.0 1.1 0:00.72 apache2
2832 mysql 20 0 748m 75m 3012 S 1.7 7.5 194:48.84 mysqld
17890 www-data 20 0 29440 2456 852 S 0.7 0.2 8:26.73 -
17903 www-data 20 0 29440 2452 852 S 0.7 0.2 8:27.18 -
19786 www-data 20 0 29440 2452 852 S 0.7 0.2 6:03.52 -
19773 www-data 20 0 29440 2452 852 S 0.3 0.2 6:03.28 -
19776 www-data 20 0 23268 2304 708 S 0.3 0.2 1:05.50 -
20044 www-data 20 0 23268 2364 708 S 0.3 0.2 1:02.34 -
26760 www-data 20 0 23268 2332 712 S 0.3 0.2 1520:05 -
26765 tyron 20 0 79820 1608 780 S 0.3 0.2 0:00.05 sshd
27145 www-data 20 0 23268 2368 696 S 0.3 0.2 4:00.71 -
1 root 20 0 10656 124 100 S 0.0 0.0 0:04.71 init
2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthreadd
What are these processes that have '-' as command? How can I track down the source?
Apparently the attack comes through the http server since www-data is the user, but how? why? where? o.O
top
top
asked Mar 26 '16 at 18:26
TyronTyron
1033
asked Mar 26 '16 at 18:26
TyronTyron
1033
asked Mar 26 '16 at 18:26
TyronTyron
1033
asked Mar 26 '16 at 18:26
TyronTyron
1033
asked Mar 26 '16 at 18:26
TyronTyron
1033
1033
what does the apache logs say ?
– PKumar
Mar 26 '16 at 18:32
you can get more information from the running processes from/proc/[PID]/status, there you could see the parent process, for example, and try to get some more information from where is it coming from (my motto: procfs is your friend)
– dave_alcarin
Mar 26 '16 at 18:33
Thank you, /procc/[pid] tells me these are perl processes run from /tmp
– Tyron
Mar 26 '16 at 18:37
To build on @dave_alcarin 's comment, you can find out a lot of what the process is in/proc/[PID], such as what the running binary actually is. See tldp.org/LDP/Linux-Filesystem-Hierarchy/html/proc.html
– Andrew Henle
Mar 26 '16 at 18:38
add a comment |
what does the apache logs say ?
– PKumar
Mar 26 '16 at 18:32
you can get more information from the running processes from/proc/[PID]/status, there you could see the parent process, for example, and try to get some more information from where is it coming from (my motto: procfs is your friend)
– dave_alcarin
Mar 26 '16 at 18:33
Thank you, /procc/[pid] tells me these are perl processes run from /tmp
– Tyron
Mar 26 '16 at 18:37
To build on @dave_alcarin 's comment, you can find out a lot of what the process is in/proc/[PID], such as what the running binary actually is. See tldp.org/LDP/Linux-Filesystem-Hierarchy/html/proc.html
– Andrew Henle
Mar 26 '16 at 18:38
what does the apache logs say ?
– PKumar
Mar 26 '16 at 18:32
what does the apache logs say ?
– PKumar
Mar 26 '16 at 18:32
you can get more information from the running processes from
/proc/[PID]/status, there you could see the parent process, for example, and try to get some more information from where is it coming from (my motto: procfs is your friend)– dave_alcarin
Mar 26 '16 at 18:33
you can get more information from the running processes from
/proc/[PID]/status, there you could see the parent process, for example, and try to get some more information from where is it coming from (my motto: procfs is your friend)– dave_alcarin
Mar 26 '16 at 18:33
Thank you, /procc/[pid] tells me these are perl processes run from /tmp
– Tyron
Mar 26 '16 at 18:37
Thank you, /procc/[pid] tells me these are perl processes run from /tmp
– Tyron
Mar 26 '16 at 18:37
To build on @dave_alcarin 's comment, you can find out a lot of what the process is in
/proc/[PID], such as what the running binary actually is. See tldp.org/LDP/Linux-Filesystem-Hierarchy/html/proc.html– Andrew Henle
Mar 26 '16 at 18:38
To build on @dave_alcarin 's comment, you can find out a lot of what the process is in
/proc/[PID], such as what the running binary actually is. See tldp.org/LDP/Linux-Filesystem-Hierarchy/html/proc.html– Andrew Henle
Mar 26 '16 at 18:38
add a comment |
1 Answer
1
active
oldest
votes
2
You can start finding the executable using below command
ls -l /proc/<PID>/exe
Then you can find who created it (the parent PID) with running below command
ps -p <PID> -o ppid=:wq
And search until you find the starting point.
You can also check the common automatic execution points, like init scripts, global and user specific cron jobs, at scripts, rc.local files..
adding 1 more thing pls check google there are lots of post on same
edited Feb 15 at 4:53
Sparhawk
10.1k74397
answered Mar 26 '16 at 18:39
Vinood NK MaheshwariVinood NK Maheshwari
319110
As already commented by Andrew Henle looking into /proc helped, thank you
– Tyron
Mar 26 '16 at 18:43
add a comment |
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1 Answer
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
2
You can start finding the executable using below command
ls -l /proc/<PID>/exe
Then you can find who created it (the parent PID) with running below command
ps -p <PID> -o ppid=:wq
And search until you find the starting point.
You can also check the common automatic execution points, like init scripts, global and user specific cron jobs, at scripts, rc.local files..
adding 1 more thing pls check google there are lots of post on same
edited Feb 15 at 4:53
Sparhawk
10.1k74397
answered Mar 26 '16 at 18:39
Vinood NK MaheshwariVinood NK Maheshwari
319110
As already commented by Andrew Henle looking into /proc helped, thank you
– Tyron
Mar 26 '16 at 18:43
add a comment |
2
You can start finding the executable using below command
ls -l /proc/<PID>/exe
Then you can find who created it (the parent PID) with running below command
ps -p <PID> -o ppid=:wq
And search until you find the starting point.
You can also check the common automatic execution points, like init scripts, global and user specific cron jobs, at scripts, rc.local files..
adding 1 more thing pls check google there are lots of post on same
edited Feb 15 at 4:53
Sparhawk
10.1k74397
answered Mar 26 '16 at 18:39
Vinood NK MaheshwariVinood NK Maheshwari
319110
As already commented by Andrew Henle looking into /proc helped, thank you
– Tyron
Mar 26 '16 at 18:43
add a comment |
2
2
2
You can start finding the executable using below command
ls -l /proc/<PID>/exe
Then you can find who created it (the parent PID) with running below command
ps -p <PID> -o ppid=:wq
And search until you find the starting point.
You can also check the common automatic execution points, like init scripts, global and user specific cron jobs, at scripts, rc.local files..
adding 1 more thing pls check google there are lots of post on same
edited Feb 15 at 4:53
Sparhawk
10.1k74397
answered Mar 26 '16 at 18:39
Vinood NK MaheshwariVinood NK Maheshwari
319110
You can start finding the executable using below command
ls -l /proc/<PID>/exe
Then you can find who created it (the parent PID) with running below command
ps -p <PID> -o ppid=:wq
And search until you find the starting point.
You can also check the common automatic execution points, like init scripts, global and user specific cron jobs, at scripts, rc.local files..
adding 1 more thing pls check google there are lots of post on same
edited Feb 15 at 4:53
Sparhawk
10.1k74397
answered Mar 26 '16 at 18:39
Vinood NK MaheshwariVinood NK Maheshwari
319110
edited Feb 15 at 4:53
Sparhawk
10.1k74397
edited Feb 15 at 4:53
Sparhawk
10.1k74397
edited Feb 15 at 4:53
Sparhawk
10.1k74397
10.1k74397
answered Mar 26 '16 at 18:39
Vinood NK MaheshwariVinood NK Maheshwari
319110
answered Mar 26 '16 at 18:39
Vinood NK MaheshwariVinood NK Maheshwari
319110
answered Mar 26 '16 at 18:39
Vinood NK MaheshwariVinood NK Maheshwari
319110
319110
As already commented by Andrew Henle looking into /proc helped, thank you
– Tyron
Mar 26 '16 at 18:43
add a comment |
As already commented by Andrew Henle looking into /proc helped, thank you
– Tyron
Mar 26 '16 at 18:43
As already commented by Andrew Henle looking into /proc helped, thank you
– Tyron
Mar 26 '16 at 18:43
As already commented by Andrew Henle looking into /proc helped, thank you
– Tyron
Mar 26 '16 at 18:43
add a comment |
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what does the apache logs say ?
– PKumar
Mar 26 '16 at 18:32
you can get more information from the running processes from
/proc/[PID]/status, there you could see the parent process, for example, and try to get some more information from where is it coming from (my motto: procfs is your friend)– dave_alcarin
Mar 26 '16 at 18:33
Thank you, /procc/[pid] tells me these are perl processes run from /tmp
– Tyron
Mar 26 '16 at 18:37
To build on @dave_alcarin 's comment, you can find out a lot of what the process is in
/proc/[PID], such as what the running binary actually is. See tldp.org/LDP/Linux-Filesystem-Hierarchy/html/proc.html– Andrew Henle
Mar 26 '16 at 18:38