Showing posts with label managed ids ips services. Show all posts
Showing posts with label managed ids ips services. Show all posts

Tuesday, 3 March 2020

What is managed security?

Managed Security includes intelligent, automated and customized security management solutions. Whatever the needs of your company.

The supervision and administration of company security is an increasingly complex task:

On the one hand, cyber threats are increasingly sophisticated. There are a large number of latent threats capable of rapidly mutating.

The traditional perimeter of corporate security has disappeared and possible entry points have multiplied. To traditional teams, we must add the irruption of mobile devices, cloud, social networks, and so on.

We cannot forget either the need to comply with multiple regulations, the safeguarding of the brand and reputation. We must protect the competitive advantage and guarantee customer satisfaction. Also look for efficiencies through automation to achieve cost reduction.

In response to this context, a series of products grouped under the term Managed Security Services are emerging in the cybersecurity market . These group usual services in this field (antivirus programs, firewalls, intrusion detection, updates, security auditing, content filtering, etc.), but adopting a new approach to the company's security needs. Based on this new approach, these services are managed by a third party that assumes responsibility for them to remain operational and monitored at all times .

In summary, a security service provider ((MSSP) for English managed security services provider) helps your organization by protecting your IT environment and mitigating the risks associated with security management. For this, it analyzes any vulnerability and subsequently applies the necessary solutions.

Advantages of Managed ids ips Services :

Cost reduction: using a managed security service usually saves costs compared to the option of an organization investing in its own personnel, software and hardware.

Increase in experience and quality of service: outsourcing services is a good solution especially for small and medium enterprises, with problems to have qualified personnel in this area.
Security systems 24 hours a day and 365 days a year : many companies can only guarantee them during normal business hours.

Efficiency: greater agility in the policies of backups or in the management of patches and updates, among others.

Friday, 28 February 2020

IPS CHARACTERISTICS

The term IPS ( Intrusion Prevention System ), which replaces the “traditional” IDS or makes a distinction between them, increasingly resonates .

An IPS is a prevention / protection system to defend against intrusions and not only to recognize and report on them, as most IDS do. There are two main features that distinguish an IDS (network) from an IPS (network):

The IPS is placed online within the IPS network and not only passively listens to the network as an IDS (traditionally placed as a port tracker in the network).

The IPS has the ability to immediately block intrusions, regardless of the transport protocol used and without reconfiguring an external device. This means that the IPS can filter and block packets in native mode (by using techniques such as dropping a connection, dropping offensive packets, blocking an intruder, etc.).

we will see an example of how to configure the IDS / IPS SNORT, this is the one that is being used in operating systems such as LINUX, although there is also a version for Windows.

HOW AN IDS WORKS

The main methods used by N-IDS to inform and block intrusions are:

Reconfiguration of external devices (firewalls or ACLs on routers): Command sent by the N-IDS to an external device (such as a packet filter or a firewall) to reconfigure immediately and thus block an intrusion. This reconfiguration is possible by sending data explaining the alert (in the package header).

Sending an SNMP trap to an external hypervisor: Sending an alert (and details of the data involved) in the form of an SNMP datagram to an external console such as HP Open View Tivoli, Cabletron, Spectrum, etc.

Sending an email to one or more users: Sending an email to one or more mailboxes to report a serious intrusion.

Attack log: Alert details are stored in a central database, including information such as date log, intruder IP address, destination IP address, protocol used and payload.

Storage of suspicious packages: All original captured packages and / or packages that triggered the alert are saved.

Opening an application: An external program is launched that performs a specific action (sending an SMS text message or issuing an audible alarm).

Sending a “ResetKill”: A TCP alert packet is constructed to force the termination of a connection (only valid for intrusion techniques that use the TCP transport protocol).

Visual notification of an alert: An alert is displayed on one or more of the management consoles.

Thursday, 27 February 2020

Understanding the intrusion detection and prevention system

An intrusion prevention system (IPS) is a security/threat prevention technology that examines network traffic flows to detect and prevent vulnerability exploits. Vulnerability exploits often come in the form of malicious entries in a targeted application or service that attackers use to stop and gain control over an application or machine. After a successful exploit, the attacker can disable the target application (resulting in a denial of service state) or can access all available rights and authorizations for the compromised application.


Prevention
IPS is often located directly behind the firewall and provides a complementary layer of analysis that negatively selects dangerous content. Unlike its predecessor, the Intrusion Detection System (IDS) - which is a passive system that examines traffic and reports on threats - the IPS is placed online (on the direct communication path between source and destination), actively analyzing and performing actions automatically in relation to all traffic flow that enters the network. Specifically, these actions include:

Send an alarm to the administrator (as it could be in an IDS)
Takedown malicious packages
Block traffic from the source address
Reset the connection

As an online security component, IPS must work efficiently to avoid degrading network performance. It should also work fast because exploits can occur almost in real-time. The IPS must also detect and respond accurately, in order to eliminate threats and false positives.