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Table of Contents

External Systems Configuration Guide

KVM

Support Added: FortiSIEM 6.3.1

Last Modification: FortiSIEM 6.3.1

Vendor Version Tested: Not Provided

 

Vendor: Free Software released under the General Public License (GPL).

Product Information: https://www.linux-kvm.org/page/Main_Page

 

What is Discovered and Monitored

Method

Information discovered

Metrics collected

Logs collected

Used for

syslog

Host name, Reporting IP

None

Virtual Machine monitoring and changes

Security Monitoring

Event Types

  • LINUX_Auditd_VIRT_MACHINE_ID

  • LINUX_Auditd_VIRT_CONTROL

  • LINUX_Auditd_VIRT_RESOURCE

 

Rules

There are no specific rules.

Reports

There are no specific reports.

Configuration

To configure, take the following steps: 

  1. Install auditd daemon on linux host. (i.e apt-get install auditd)

  2. Edit/etc/audit/auditd.conf and configure as follows (take note of log_format = ENRICHED as this provides the real users behind the UIDs and AUIDs):

    Note: This file controls the configuration of the audit daemon.

    local_events = yes
    write_logs = yes
    log_file = /var/log/audit/audit.log
    log_group = root
    log_format = ENRICHED
    flush = INCREMENTAL_ASYNC
    freq = 50
    max_log_file = 8
    num_logs = 5
    priority_boost = 4
    disp_qos = lossy
    dispatcher = /sbin/audispd
    name_format = NONE
    ##name = mydomain
    max_log_file_action = ROTATE
    space_left = 75
    space_left_action = SYSLOG
    action_mail_acct = root
    admin_space_left = 50
    admin_space_left_action = SUSPEND
    disk_full_action = SUSPEND
    disk_error_action = SUSPEND
    use_libwrap = yes
    ##tcp_listen_port =
    tcp_listen_queue = 5
    tcp_max_per_addr = 1
    ##tcp_client_ports = 1024-65535
    tcp_client_max_idle = 0
    enable_krb5 = no
    krb5_principal = auditd
    ##krb5_key_file = /etc/audit/audit.key
    distribute_network = no
  3. Configure rsyslog to send this logfile via syslog by editing /etc/rsyslog.conf and adding these lines:
    Note: This does not need Linux agent.

    $ModLoad imfile
    $InputFileName /var/log/audit/audit.log
    $InputFileTag tag_audit_log:
    $InputFileStateFile audit_log
    $InputFileSeverity info
    $InputFileFacility local6
    $InputRunFileMonitor
    *.* @replace.with.fortisiem.collector.IP:514

Sample Logs

Sample logs are provided here. For more information on logs, see https://libvirt.org/auditlog.html.

<182>Jul 26 15:20:36 fsa3000e4 tag_audit_log: type=VIRT_CONTROL msg=audit(1627305635.364:82451): pid=25686 uid=0 auid=4294967295 ses=4294967295 msg='virt=kvm op=start reason=booted vm="DT_FSR_Agent" uuid=104735e9-c1ea-44bc-8d99-0fe6fde58b73 vm-pid=25722 exe="/usr/sbin/libvirtd" hostname=? addr=? terminal=? res=success'UID="root" AUID="unset"
<182>Jul 26 15:20:36 fsa3000e4 tag_audit_log: type=VIRT_RESOURCE msg=audit(1627305634.788:82437): pid=25686 uid=0 auid=4294967295 ses=4294967295 msg='virt=kvm resrc=net reason=open vm="DT_FSR_Agent" uuid=104735e9-c1ea-44bc-8d99-0fe6fde58b73 net=52:54:00:e7:84:3c path="/dev/net/tun" rdev=0A:C8 exe="/usr/sbin/libvirtd" hostname=? addr=? terminal=? res=success'UID="root" AUID="unset"
<182>Jul 26 15:20:36 fsa3000e4 tag_audit_log: type=VIRT_MACHINE_ID msg=audit(1627305634.632:82435): pid=25686 uid=0 auid=4294967295 ses=4294967295 msg='virt=kvm vm="DT_FSR_Agent" uuid=104735e9-c1ea-44bc-8d99-0fe6fde58b73 vm-ctx=+64055:+64055 img-ctx=+64055:+64055 model=dac exe="/usr/sbin/libvirtd" hostname=? addr=? terminal=? res=success'UID="root" AUID="unset"

KVM

Support Added: FortiSIEM 6.3.1

Last Modification: FortiSIEM 6.3.1

Vendor Version Tested: Not Provided

 

Vendor: Free Software released under the General Public License (GPL).

Product Information: https://www.linux-kvm.org/page/Main_Page

 

What is Discovered and Monitored

Method

Information discovered

Metrics collected

Logs collected

Used for

syslog

Host name, Reporting IP

None

Virtual Machine monitoring and changes

Security Monitoring

Event Types

  • LINUX_Auditd_VIRT_MACHINE_ID

  • LINUX_Auditd_VIRT_CONTROL

  • LINUX_Auditd_VIRT_RESOURCE

 

Rules

There are no specific rules.

Reports

There are no specific reports.

Configuration

To configure, take the following steps: 

  1. Install auditd daemon on linux host. (i.e apt-get install auditd)

  2. Edit/etc/audit/auditd.conf and configure as follows (take note of log_format = ENRICHED as this provides the real users behind the UIDs and AUIDs):

    Note: This file controls the configuration of the audit daemon.

    local_events = yes
    write_logs = yes
    log_file = /var/log/audit/audit.log
    log_group = root
    log_format = ENRICHED
    flush = INCREMENTAL_ASYNC
    freq = 50
    max_log_file = 8
    num_logs = 5
    priority_boost = 4
    disp_qos = lossy
    dispatcher = /sbin/audispd
    name_format = NONE
    ##name = mydomain
    max_log_file_action = ROTATE
    space_left = 75
    space_left_action = SYSLOG
    action_mail_acct = root
    admin_space_left = 50
    admin_space_left_action = SUSPEND
    disk_full_action = SUSPEND
    disk_error_action = SUSPEND
    use_libwrap = yes
    ##tcp_listen_port =
    tcp_listen_queue = 5
    tcp_max_per_addr = 1
    ##tcp_client_ports = 1024-65535
    tcp_client_max_idle = 0
    enable_krb5 = no
    krb5_principal = auditd
    ##krb5_key_file = /etc/audit/audit.key
    distribute_network = no
  3. Configure rsyslog to send this logfile via syslog by editing /etc/rsyslog.conf and adding these lines:
    Note: This does not need Linux agent.

    $ModLoad imfile
    $InputFileName /var/log/audit/audit.log
    $InputFileTag tag_audit_log:
    $InputFileStateFile audit_log
    $InputFileSeverity info
    $InputFileFacility local6
    $InputRunFileMonitor
    *.* @replace.with.fortisiem.collector.IP:514

Sample Logs

Sample logs are provided here. For more information on logs, see https://libvirt.org/auditlog.html.

<182>Jul 26 15:20:36 fsa3000e4 tag_audit_log: type=VIRT_CONTROL msg=audit(1627305635.364:82451): pid=25686 uid=0 auid=4294967295 ses=4294967295 msg='virt=kvm op=start reason=booted vm="DT_FSR_Agent" uuid=104735e9-c1ea-44bc-8d99-0fe6fde58b73 vm-pid=25722 exe="/usr/sbin/libvirtd" hostname=? addr=? terminal=? res=success'UID="root" AUID="unset"
<182>Jul 26 15:20:36 fsa3000e4 tag_audit_log: type=VIRT_RESOURCE msg=audit(1627305634.788:82437): pid=25686 uid=0 auid=4294967295 ses=4294967295 msg='virt=kvm resrc=net reason=open vm="DT_FSR_Agent" uuid=104735e9-c1ea-44bc-8d99-0fe6fde58b73 net=52:54:00:e7:84:3c path="/dev/net/tun" rdev=0A:C8 exe="/usr/sbin/libvirtd" hostname=? addr=? terminal=? res=success'UID="root" AUID="unset"
<182>Jul 26 15:20:36 fsa3000e4 tag_audit_log: type=VIRT_MACHINE_ID msg=audit(1627305634.632:82435): pid=25686 uid=0 auid=4294967295 ses=4294967295 msg='virt=kvm vm="DT_FSR_Agent" uuid=104735e9-c1ea-44bc-8d99-0fe6fde58b73 vm-ctx=+64055:+64055 img-ctx=+64055:+64055 model=dac exe="/usr/sbin/libvirtd" hostname=? addr=? terminal=? res=success'UID="root" AUID="unset"