One Article Review
| Source |  AlienVault Blog |
|---|---|
| Identifiant | 2292431 |
| Date de publication | 2021-02-04 06:01:00 (vue: 2021-02-04 07:05:14) |
| Titre | Intrusion Prevention Systems explained: what is an IPS? |
| Texte | This article was written by an independent guest author. The goal of every cybersecurity strategy is to stop cyberthreats before they have a material impact. This has resulted in many organizations seeking to be more proactive in their response to potential threats by employing solutions to detect and prevent specific types of cyberattacks by monitoring for the earliest indicators of attacks found within network traffic. Nearly every type of cyberattack (with the exception of malware-less phishing attacks that rely solely on social engineering) includes some use of network communications as part of the attack to retrieve commands, perform actions, authenticate, or otherwise interact with external hosts. For that reason, the idea of watching network traffic for leading indicators of threat activity has stemmed an evolution of network monitoring to be used specifically for detecting threatening network activity. And by adding in the ability to respond to detected threats in network traffic, the result is intrusion prevention systems. What is an intrusion prevention system? An Intrusion Prevention Systems (commonly referred to as IPS) is a form of network security that continuously monitors network traffic entering and leaving your organization’s network. It watches for potentially suspicious and/or malicious traffic, alerts IT and security staff, and then takes action to stop the suspect traffic from continuing. IPS solutions are also used to identify and remediate internal violations of corporate security policy by employees and network guests. But, considering the frequency and intensity of external cyberattacks today, the more prevalent use of IPS is to protect against external attacks. Some of the more common attacks IPS security solutions are used to stop include brute force attacks, denial of service attacks, and attacks seeking to exploit known vulnerabilities in internal systems. IPS performs real-time deep packet inspection, examining every packet that traverses your network. Its methods of detection can be either signature-based (where network packets match a known malicious pattern) or anomaly-based (where an instance of traffic is unusual or has never been seen, such as communications to an IP address in a remote part of the world from an internal endpoint). Should malicious or suspicious traffic be detected, the IPS can utilize any one of the following actions: Network sessions can be terminated, blocking the malicious source IP address and user accounts from continuing to communicate with a given internal application, resource, or network host, preventing a detected attack from continuing Firewall policies and/or configurations can be updated to prevent this kind of attack from happening in the future, as well as preventing the offending source IP address from having access to internal hosts Malicious content that continues to reside within the corporate network – such as infected attachments within email – can also be removed or replaced by IPS solutions How IDS compares to IPS In addition to IPS, there are also intrusion detection systems (IDS) that are often mentioned in the same breath. However, these solutions do not produce the same end result. The difference is found in their names. IDS merely detects and notifies IT, security teams, or a SIEM solution. IPS detects, but also takes action to protect the network from further abuse and attacks. The challenge with only using an IDS solution is the lack of immediacy with regard to response. With internal staff only notified of a detected threat, lag times can exist from the pure human response (or lack thereof) element. IT or Security staff need to first determine an appropriate response (that is, what new configuration or change should be mad |
| Envoyé | Oui |
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| Tags | Threat Guideline |
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