How SIEM tools monitor your network

1
How SIEM tools monitor your network

• Information theft is a big business and corporate
  information that features project deals and trade
  secrets. Hence, information management is a
  necessary component of any program.
• That is where Security Information and Event
  Management (SIEM) monitoring comes into play.

2
What is SIEM ?

• Security Information and Event Management
  (SIEM) is a technology for cyber security that
  provides real-time analysis of security alerts
  generated by hardware as well as network
  applications.
• SIEM monitoring supports earliest threat
  detection and fastest security incident response
  through the real-time collection and historical
  analysis of security events that are compiled
  from a broad variety of event and contextual data
  sources. SIEM tools also support compliance
  reporting and incident investigation via
  historical data analysis from the sources.

3
How SIEM works ?

• Security Information and Event Management
  (SIEM) is a technology for cyber security that
  provides real-time analysis of security alerts
  generated by hardware as well as network
  applications.
• SIEM monitoring supports earliest threat
  detection and fastest security incident response
  through the real-time collection and historical
  analysis of security events that are compiled
  from a broad variety of event and contextual data
  sources. SIEM tools also support compliance
  reporting and incident investigation via
  historical data analysis from the sources.

4
How SIEM works ?

• You may spend a lot of money buying a Security
  Information and Event Management (SIEM) product
  from your trustworthy SIEM vendors but if you do
  not follow through and use the SIEM properly,
  SIEM monitoring functionality and SIEM tools will
  fail to protect your information.
• SIEM tools monitor at your network through a
  larger lens than can be provided by a single
  security control or information source. For
  example
• Asset Management functionality of SIEM monitoring
  would oversee business processes, applications
  and administrative contacts.
• Network Intrusion Detection system (IDS) is an
  SIEM tool that only understands Packets,
  Protocols and IP Addresses.
• Endpoint Security system is a functionality of
  SIEM monitoring only sees files, usernames and
  hosts.
• Service Logs of SIEM monitoring show database
  transactions, user sessions and configuration
  changes.
• File Integrity Monitoring (FIM) systems SIEM tool
  of only see the changes in files and registry
  settings.

5
SIEM Benefits

• The benefits of SIEM monitoring are as follows
• Streamline compliance reporting
• This is the most important benefit offered by
  SIEM tools. It streamlines their compliance
  reporting and efforts through a centralized
  logging solution. Any host that needs to have the
  log of its security events included in the
  reporting can regularly transfer its log data to
  a SIEM server.
• Detect incidents that would otherwise not be
  detected
• Some incidents can be detected only by SIEM
  tools. This is because of two reasons. First,
  many hosts that log security events do not have
  built-in incident detection capabilities. Hence,
  they lack the ability to analyze the log entries
  and there is no guarantee of identifying signs of
  malicious activity.

6

• The second reason for SIEMs advanced detection
  capabilities is that they can correlate events
  across hosts. By gathering events from hosts
  across the enterprise, a SIEM tool can see
  attacks that have different parts seen by
  different hosts. After that, it can reconstruct
  the series of events to determine what the nature
  of the attack was and whether or not it
  succeeded.
• After SIEM tools examine the log data for all
  events, they can figure out malware infection in
  the device that due to infection joined a botnet
  and started attacks against other hosts. They can
  also stop cyber attacks in progress.
• On the detection of any activity involving known
  malicious hosts, SIEM tools can terminate the
  connections of those hosts. They can also disrupt
  interactions between malicious hosts and
  organizations hosts in order to prevent an
  attack before it occurs.

7
Improve the efficiency of incident handling
activities

• SIEM tools increase the efficiency of incident
  handling, which in turn saves time and resources
  for incident handlers. More efficient incident
  handling speeds up the process of incident
  containment. Hence, it reduces the amount of
  damage that many incidents cause. SIEM monitoring
  improves efficiency by providing a single
  interface for viewing all the security log data
  from many hosts.
• To know more about the SIEM services offered by
  us and know about our other security services,
  contact us at enquiry_at_leosys.net or call us at
  407-965-5509. Allow us to be your SIEM vendor.