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Full Discussion: Howto stop loops in CentOS
Top Forums UNIX for Advanced & Expert Users Howto stop loops in CentOS Post 302971684 by Azrael on Sunday 24th of April 2016 04:27:27 AM
Old 04-24-2016
If you are hacked, then the processes that are sending ping are most likely going to restart, even if you kill them. You need to find the files on the system doing this first. I would try to run the following as root to get the PID of any process sending out ping:

Code:
ps faux | awk '/ping/ { print $2 }'

Then try grepping the PIDs from lsof to see if you can find the files associated with this.

If ping is being ran as root, or the files that is sending the ping requests are owned by root, you probably need a complete reload of Centos. Otherwise just chmod 000 any malicious files you find or remove them.

Last edited by DukeNuke2; 04-24-2016 at 05:40 AM..
 

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OCF_PACEMAKER_PING(7)					      Pacemaker Configuration					     OCF_PACEMAKER_PING(7)

NAME
ocf_pacemaker_ping - node connectivity SYNOPSIS
[OCF_RESKEY_pidfile=string] [OCF_RESKEY_dampen=integer] [OCF_RESKEY_name=string] [OCF_RESKEY_multiplier=integer] [OCF_RESKEY_host_list=string] [OCF_RESKEY_attempts=integer] [OCF_RESKEY_timeout=integer] [OCF_RESKEY_options=string] [OCF_RESKEY_debug=string] ping [start | stop | reload | monitor | meta-data | validate-all] DESCRIPTION
Every time the monitor action is run, this resource agent records (in the CIB) the current number of ping nodes the host can connect to. It is essentially the same as pingd except that it uses the system ping tool to obtain the results. SUPPORTED PARAMETERS
OCF_RESKEY_pidfile = string [/var/run//ping-default] PID file OCF_RESKEY_dampen = integer [5s] Dampening interval The time to wait (dampening) further changes occur OCF_RESKEY_name = string [pingd] Attribute name The name of the attributes to set. This is the name to be used in the constraints. OCF_RESKEY_multiplier = integer [] Value multiplier The number by which to multiply the number of connected ping nodes by OCF_RESKEY_host_list = string [] Host list The list of ping nodes to count. Defaults to all configured ping nodes. Rarely needs to be specified. OCF_RESKEY_attempts = integer [2] no. of ping attempts Number of ping attempts, per host, before declaring it dead OCF_RESKEY_timeout = integer [2] ping timeout in seconds How long, in seconds, to wait before declaring a ping lost OCF_RESKEY_options = string [] Extra Options A catch all for any other options that need to be passed to ping. OCF_RESKEY_debug = string [false] Verbose logging Enables to use default attrd_updater verbose logging on every call. AUTHOR
Andrew Beekhof <andrew@beekhof.net> Author. Pacemaker Configuration 07/05/2010 OCF_PACEMAKER_PING(7)
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