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McAfee SIEM CLI Refrence

May 24th, 2016 | by Shree H. Niraula
McAfee SIEM CLI Refrence
McAfee SIEM
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 McAfee Enterprise Security Manager:

Security information and event management (SIEM) solution brings event, threat, and risk data together to provide strong security intelligence, rapid incident response, seamless log management, and compliance reporting—delivering the context required for adaptive security risk management.At the core of our SIEM offering, McAfee Enterprise Security Manager delivers the performance, actionable intelligence, and real-time situational awareness required to identify, understand, and respond to stealthy threats, while the embedded compliance framework simplifies compliance.

Some useful commands of McAfee SIEM: CLI Reference

Change IP address

 # /etc/NitroGuard/network.conf                                     # /etc/NitroGuard/globals.conf

Restart ESM

# service cpservice stop

# service cpservice start

Restart APM

# /etc/init.d/apm stop

# /etc/init.d/apm start

# NitroStop –nod (no daemon)

# NitroStart –nod (no daemon)

View ESM DB Errors

tailf /usr/local/ess/data/NitroError.Log

less /usr/local/ess/data/NitroError.Log (Use ‘q’ to exit the text editor)

View Rebuild Status of DB Partitions (in addition to ESM System Properties page)

# /data_hd/usr/local/ess/data/watch –d ‘ls –lia *X*’

Viewing Sort Files created by ESM (too large can create slow downs)

# /data_hd/usr/local/ess/data/du –ch *SRT*

Retrieve APM Crash Logs Location

# /var/log/ice/crash.log

Retrieve Health Status on SIEM device

# cat /var/lib/HealthStatus.data (tac for newest first, cat for oldest first)

Gather appliance resource information

# grep Resource /var/log/messages

Check Event Receiver for Restart Events

cat /var/log/messages* | grep -i “starting ERC”  (tac for newest first, cat for oldest first)

less /var/log/messages (type ‘q’ to exit the editor, “Shift + g” to get to the end of the file)

Check upgrade history

# cat /etc/upgrade.history (tac for newest first, cat for oldest first)

Zip Messages Log

# cd /var/log

# tar –czvf messages.tgz messages*

Checking RAID drives (from /opt/MegaRAID/MegaCli/)

#./MegaCli64 -ldinfo -l0 -a0

#./MegaCli64 -ldinfo –l1 -a0

#./MegaCli64 -pdlist -a0

Most helping CPU processes view

# ps -ejH (shows processes and threads)

# ps -C commandname (search like “ps | grep”)# ps -auxf (most details)

# ps -ax (all processes)

View the Build Version of the McAfee Software on the appliance

# cat /etc/buildstamp

View the build version of the Linux OS

# cat /proc/version

Check Disk Space – General

# df –h (to show space by drive) or du –h (to show space by folder)

Check if logs are being sent to a receiver

# tcpdump –nni eth1 host 10.x.x.x

Check multiple hosts

# tcpdump –nni eth1 ‘(host 10.x.x.x or host 10.y.y.y)’

Finding the largest file on a system

Use the du command to find out how much data is in each directory.

# du -hc –max-depth=1

This will return the base level directories with the size.

NOTE: is best to start in the “/” directory.

The following command will limit the results to only the Gigabyte size directories:

#  du -hc –max-depth=1 | grep G

You can continue to use these commands as you drill down in the directories to find the directory that contains the largest amount of data.

Check the disk utilization

Sar –d 1 10

Checks disk utilization every second over 10 seconds

TCP dump commands when you do not see the expected DBM data

#  ifconfig -a (determines which eth port DB traffic is being sent to)

#  tcpdump -s0 -ieth3 -wfile1.pcap host 1.2.3.4 and port 1433 (dump file will be called file1.pcap in the current directory)

Run the dump for 30, and then press CTRL+C to escape out. Check the file size and repeat.  Generally a few hundred MBs worth of files should be good if you see the expected DB traffic in the tcpdump.

To check for vlan tagging

#  tcpdump -s0 -ieth3 -wfile1.pcap vlan # host 10.x.x.x and port 1433 (optional to leave the tag number, for example 130,
off if unknown).

#  tcpdump -s0 -nnvXi eth1 vlan # and host 172.x.x.x and port 1433 (with vlan tag and shows packet contents in list form)

#  tcpdump -s0 -nnvXi eth1 -wfile3.pcap vlan # and host 172.x.x.x and port 1433   (with vlan tag and saves tcpdump to pcap file)

Find all Receiver database index files

# ls /var/log/data/inline/

Track Receiver database index progress

# tailf /var/log/data/inline/NitroError.Log

Restarting collectors / parsers on a Receiver

#  killall collectorsctl filterctl parsersctl

#  /etc/init.d/nitrodbserver restart

#  collectorsctl — +laux

#  filterctl — +laux

#  parsersctl — +laux

Restarting WMI collector / parser only

# killall -9 wmin

# killall -9 wmip

Run checksum on install file

# sha1sum

Check DAS Virtual Drive Information from ESM or ELM

Watch –d megacli –ldinfo –l0 –a0

“Ctrl + C” to exit

Check DAS Drive Status

megacli -pdlist -a0 | grep Firmware

Check the Controller, RAID, and Drive Status on ESM

Show the Controller:

# tw_cli show

Show the Status of the RAID/Drives

# tw_cli show c# (# shown using show command – c2 for ESM’s, c0 on 2250 Receivers and APM)

Show individual drive status

# tw_cli info c2 p# (# drive number)

Show individual drive serial number

# tw_cli info c2 p# serial (# drive number)

Check HA or Cluster Status on Receiver or ESM

# ha_status

# crm status

Check agent logs status on Receiver

# tailf /var/log/NPP_c.log

# tailf /var/log/NPP_p.log

Finding and viewing raw logs in stored text file on Receiver (example)

# tail –n 1000 /var/log/NPP_c.log | grep 10.198.12.73

Results: NPP_c[18094]: Got a connection from client IP addr: 10.198.12.73, id = 105

Find the ID of the host and use on the next command to find files to search

# ls /var/log/data/inline/thirdparty.logs/105/in/

# cat /var/log/data/inline/thirdparty.logs/105/in/data.20121115161524000

View ESM DB partitions

# !nsq (shortcut command which will launch the nsql command below – if in the correct directory)

# nsql /usr/local/ess/data/connect_esm.sql (To exit the nsql editor type ‘x’ or ‘exit’ and )

(Attached = Good, Detached = Call Support, Bad = Awaiting Rebuild)

To view Event data

show partitions from alert

To view Flow data

show partitions from connection

To view Appliance Packet data

Show partitions from packet

View record counts in DB

# nsql /usr/local/ess/data/connect_esm.sql  (To exit the nsql editor type ‘x’ or ‘exit’ and )

To view event data

select count(*) from alert

To view flow data

select count(*) from connection

To view Appliance Packet data

select count(*) from packet

View Event data on a receiver

# nsql /var/log/data/inline/connect.sql (Launch this command when ssh in to a receiver)

To view Event data

show partitions from event

To get the clutter off of the SSH session and your prompt back to the top of the screen (does not remove scroll back data on screen)

clear

Article for rekeying a SIEM Appliance

# cd /root/.ssh

# cat /etc/NitroGuard/factory-id_rsa.pub >authorized_keys2

Wiping Receiver Data Sources and log files

# rm /etc/NitroGuard/thirdparty.*.*

# rm /var/log/data/inline/thirdparty.logs/(1* thru 9*)

# rm /var/log/data/inline/thirdparty.logs/elm.logs/(1* thru 9*)

# rm /var/log/data/inline/thirdparty.logs/elm.logs/tmp/(1* thru 9*)

ESM Related

Quickest running filters – Very Important!!!!

There are combinations of filters that are specifically tuned to run more quickly.  These combinations have been defined by users who frequently use the filters for quickly drilling down to specific events.

Signature ID + Event Subtype + Protocol

Signature ID + Source IP

Signature ID + Destination IP

Source IP + Destination IP

Additional Enhancements since 8.x:

Normalization ID + Source IP

Normalization ID + Destination IP

Normalization ID + Event Subtype

Normalization ID + Protocol

Normalization ID + Signature ID

Source Zone + Destination Zone

Directory Related

ESM & Receiver Software File Location (for upgrades)

/usr/local/ess/SoftwareUpdates/

/usr/local/NitroGuard

ESM Software File Locations Archives

/usr/local/ess/update/archive/

ESM Default Backup Location

/db1/usr/local/ess/dbbackup/

ESM DB Blob & Index Location

/data_hd/usr/local/ess/data/

ESM Index HD Location (Most recent data)

/index_hd/usr/local/ess/data/

 

ESM Redundant File Copy Location (For Alert, Connection, and Log files)

 

 

/usr/local/ess/dbredund

Commands:

McAfee-ETM-6000 ~ # less /usr/local/ess/data/NitroError.Log

McAfee-ETM-6000 ~ # service cpservice stop

tailf /var/log/messages – Watch what’s happening

Tcpdump -nni eth0 host -vvv -w

NitroTID – get database troubleshooting information

Indications that database needs to be rebuilt: 2016/05/24 11:43:01.429 Error 132 opening table with field Alert.ALERTTIM(partition 2406)(data count = 77427336, index count =77427320) Index count does not match record count Rebuild Database index:

McAfee-ETM-6000 ~ # cd /usr/local/ess/data

McAfee-ETM-6000 /usr/local/ess/data # mkdir copy_ngcp

McAfee-ETM-6000 /usr/local/ess/data #
cp ngcp.cfg copy_ngcp

McAfee-ETM-6000 /usr/local/ess/data #
cp ngcp.cfd copy_ngcp

McAfee-ETM-6000 /usr/local/ess/data # cd copy_ngcp/

McAfee-ETM-6000 /usr/local/ess/data/copy_ngcp # ls

ngcp.cfd  ngcp.cfg

McAfee-ETM-6000 /usr/local/ess/data/copy_ngcp # cd ../

McAfee-ETM-6000 /usr/local/ess/data # rm ngcp.cfg

McAfee-ETM-6000 /usr/local/ess/data # rm ngcp.cfd

McAfee-ETM-6000 /usr/local/ess/data # ls

Check Database:

McAfee-ETM-6000 ~ # service cpservice stop

Stopping ESS
cpservice                                                                                                                                                                            [  OK  ]

McAfee-ETM-6000 ~ # DBCheck -d ‘/usr/local/ess/data/ngcp.dfl’
-p ‘LOCDB327|CPDB126’ -t ‘!Alert|!Connection|!Log|!Packet|!stringmap’ -r

McAfee-ETM-6000 ~ # DBCheck -d
‘/usr/local/ess/data/ngcp.dfl’ -p ‘LOCDB327|CPDB126’ -t -c

Option at position 5 needs an argument : t

McAfee-ETM-6000 ~ # DBCheck -d
‘/usr/local/ess/data/ngcp.dfl’ -p ‘LOCDB327|CPDB126’ -c

DBCheck -d ‘/usr/local/ess/data/ngcp.dfl’ -p
‘LOCDB327|CPDB126’ -c   | grep Not

Check database health:

1. # cd /usr/local/ess/data

2. # DBCheck
-d ngcp.dfl -c | grep not

Check Syslog for Raid errors:

1.  # cd /usr/local/ess/data

2.  # Dmesg | grep RAID

Display Raid Status

1.   # cd /usr/local/ess/data

2.   #  MegaCli64 -CfgDsply -aAll | grep fail or grep down

Use grep for “downgraded, or fail”which will indicate raid issues

 

 

 

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