This is what this blog post is all about, to provide an overview of the approaches used by hackers to infiltrate a network and explain the threat prevention techniques and best practices to mitigate attacks.CSGO Hacks. The solution is what I like to call the magic sauce, which is to put the right combination of threat prevention techniques together to make it close to impossible for an attacker to evade all of them. 0 +.The single most important message which we would like to bring across is that that there is no magic box that does everything on its own and any threat prevention technique like AV, IPS or URL Filtering can be evaded and as such doesn’t provide 100% security on its own. To update, simply downloadLiquidBounce again and overwrite the old file in your Mods folder.The next time you start LiquidBounce, you should have the latestversion installed. LiquidBounce will inform you after launch ifa new version has been released.
A good analogy is the human immune system. For instance a recent whitepaper from the SANS Institute “Beating the IPS” shows that every Intrusion Prevention System “IPS” from every vendor, can be evaded. In reality however, 100% security is not possible, every threat prevention technique can be evaded and cyber criminals have been very successful at doing so. The challenge for the company is to defend each link and stop the attack at the earliest possible stage along the kill chain, successfully defending itself against the entire Advanced Persistent Threat.
The Palo Alto Networks Next-Generation FireWall can provide the visibility necessary to allow a company to determine exactly what needs to be protected. Getting this level of intelligence into an IT infrastructure is difficult and expensive.Enterprises should therefore adopt the approach of visibility, control and threat prevention. We know when we feel sick and we instinctively know when to go to the doctor. There is however a big difference between us humans and an IT system. However being sick isn’t the end of the world as long as the body is able, or sometimes with medical intervention, enabled to effectively defend itself and mitigate the impact of the infection.
Kill Chain Step 6 – Command and Control (C2)2.7. Therefore we will first outline the common techniques used by attackers along the cyber kill chain to infiltrate these targets and then describe the recommended threat prevention techniques which should be implemented and maintained to defend them.2.6. In order to secure these targets, enterprises need to understand where the risk exists and how they might be attacked. The final step is to implement different threat prevention techniques at every step of the cyber kill chain as it is the combination of different threat prevention techniques which reduces the ability to evade all of them and in turn provide the enterprise with the best possible security defence.This document focuses on the two main targets of the IT infrastructure, the data centre and end-user devices.
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With this, data centres share a common threat vector as they provide services that are based on software which by its nature has bugs or even features which adversaries can exploit. This presents a broad threat surface for attacks as the server has to process data and with this as well malicious code which can be used by attackers to exploit software vulnerabilities. Kill Chain Step 7 – Actions on ObjectivesData centres, and by this we mean servers or any other devices which are not directly operated by a human, generally provide services and with this have to be available to a wide audience. Kill Chain Step 6 – Command and Control (C2)3.7.
Block access from high-risk sources – Attacks are often launched from what can be called the bad neighbourhoods of the internet. This especially applies to services that provide direct system access like remote desktop, telnet or SSH as these are prone to brute force attacks. Either site-to-site VPN tunnels or the GlobalProtect remote access VPN should be used to provide access to services for a manageable group of 3rd parties instead of allowing direct access from the internet. In the case where a service needs to be made available to the internet then access can be restricted on a per-country basis. Such access can be controlled by the security policy to allow communications only from the required sources. Zero Trust Access Control – Services should only be made available to the users who need to access them.
IP blacklists are available from organisations such as OpenBL or similar commercial services. Instead of blocking entire countries, access from blacklisted IP addresses should be considered as a large percentage of attacks originate in high profile countries like the United States, Germany and the UK from which services often have to be reachable. If access to a service cannot be limited to specific countries then communication should be blocked from countries where attacks are seen but no legitimate customer requests can be expected.
Data centre usually provide a set list of applications which can easily be identified using the reporting capabilities of the Next-Generation FireWall. With such application-based access control, only applications that are explicitly configured in the security policy are allowed and consequently, all others are blocked. Application Control (Inbound) – One of the most effective methods to prevent network threats is the implementation of a positive application allow list as it significantly reduces the attack surface and with this the attack-ability of a service.
Before blocking any unknown applications, it is therefore important to identify such legitimate applications and allow them by defining a custom application signature. Some legitimate business applications may not be identified by the Next-Generation FireWall as they might be proprietary or not widely used applications.
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