We Save You Time and Resources By Curating Relevant Information and News About Cybersecurity.

best-cyber-security-news

Cracking the Code: the Truth Behind Cybersecurity Evasion

By Tom Seest

What Are Advanced Evasion Techniques In Cybersecurity?

At BestCybersecurityNews, we help entrepreneurs, solopreneurs, young learners, and seniors learn more about cybersecurity.

An advanced evasion technique is a collection of methods designed to allow cybercriminals to circumvent security measures and distribute malware without detection. These strategies may involve obfuscating, encrypting, and compressing malware files for extra protection.
As network security professionals, we recognize the growing danger of evasion techniques on our networks and services. They are capable of bypassing firewalls and intrusion detection systems (IDSs).

What Are Advanced Evasion Techniques In Cybersecurity?

What Are Advanced Evasion Techniques In Cybersecurity?

Unleashing the Power of Advanced Evasion Techniques

In cybersecurity, an advanced evasion technique is a technique cyber adversaries use to obscure malicious indicators of an attack from network security tools. This allows them to remain undetected and deliver new drive-by browser exploits or other malware payloads undetected.
Detecting these types of attacks can be a challenge. It necessitates an in-depth knowledge of the threat and a proactive attitude toward network security.
Cybercriminals are constantly innovating and devising new methods to avoid detection. Therefore, it can be impossible to stay abreast of all techniques; thus, understanding how these strategies operate is essential for staying ahead of the game.
To better comprehend how this occurs, let’s consider the Ursnif malware. This piece of malicious software typically injects itself into Internet Explorer processes but some versions use time-based evasion and delay execution until a specified amount of time has elapsed. In doing so, attackers are able to circumvent any network intrusion detection systems and get directly to their target.
Other evasion methods include traffic insertion, resource exhaustion and tunneling. These tactics are intended to make it simpler for malicious actors to access sensitive information but may also disrupt your network security.
Unfortunately, most evasion techniques are undetected by network intrusion detection systems, which are designed to detect malicious activity on a network. That is why it is so important to implement an effective security policy and use a robust network firewall in order to shield your organization from these potential hazards.
Another way to circumvent network-based IDS is by employing proxies that operate at the Presentation layer, where all critical data resides. Furthermore, using a proxy helps shield the compromised server from lower-layer attacks like session hijacking and sniffing.
Furthermore, a proxy can be configured to send encrypted or decrypted data in an unencrypted manner. This is an effective strategy as it makes it more challenging for network-based IDS systems to detect malware.
Traditional evasion tactics rely on simple tricks to circumvent firewalls and intrusion prevention systems, but advanced evasions combine multiple tactics that cannot be stopped by existing network security technologies. As such, advanced evasions pose a major threat to companies with vital infrastructure, such as governments, industry, or e-commerce businesses.

Unleashing the Power of Advanced Evasion Techniques

Unleashing the Power of Advanced Evasion Techniques

Are Advanced Evasion Techniques the Key to Outsmarting Cyber Attacks?

Cybercriminals are always developing new methods to circumvent security systems and attack networks. Advanced evasion techniques (AETs) are one such example of how cybercriminals avoid detection. They have been employed in a variety of attacks such as botnets and Advanced Persistent Threats (APTs).
Most network intrusion detection systems (NIDSs) rely on a signature database that can identify slight variations of an established set of vulnerabilities. However, AETs have the capacity to create combinations of these flaws and alter their behavior in order to circumvent NIDS detection and avoid paying attention.
The primary advantage of these techniques is that they can make malware appear as legitimate data packets that would normally have been misinterpreted as attacks by the NIDS. This makes it more challenging to detect and stop an attack using traditional means such as the NIDS.
Due to this limitation, NIDS often struggles to construct an accurate view of the protocol state when they receive data packets. Furthermore, hosts may implement TCP/IP with slightly different specifications or even disregard RFC requirements altogether.
If this occurs, NIDS won’t be able to differentiate a legitimate data packet from a malicious one since they lack context for the end host. As such, it won’t alert an attacker about the potential re-sequencing of data streams as required by signature databases.
Network security devices typically maintain between 3,000 and 30,000 active signatures at any given time, taking up valuable processing resources. If one attempted to protect against all combinations of evasion techniques available today, that would result in an overwhelming number of signatures which would clog up NIDS’ processing capacity and render it unmanageable.
Traditional network security solutions must reevaluate their approach in order to defend against AETs, and the only way to combat them is by rethinking the current protection model. As such, traffic normalization has been developed as a solution that removes the effects of advanced evasion techniques from network traffic. It can be implemented on firewalls, intrusion prevention systems (IPS), unified threat management (UTM) systems, and routers alike.

Are Advanced Evasion Techniques the Key to Outsmarting Cyber Attacks?

Are Advanced Evasion Techniques the Key to Outsmarting Cyber Attacks?

Are Your Network Defenses Prepared for Advanced Evasion Techniques?

Advanced evasion techniques are a means for cybercriminals to conceal their activities from network security devices. This enables them to launch attacks on vulnerable systems without being detected by traditional network security measures.
In most cases, IPS/IDS systems are well-equipped to detect these types of evasions since they are dedicated devices that scan data packets for important information that should be interpreted as an attack. Unfortunately, when these evasions go beyond what traditional techniques can detect, the consequences for your network security begin to take a serious hit.
The most prevalent evasion technique is encryption, which makes it difficult for IPS/IDS to decipher encrypted information sent. Other techniques like traffic fragmentation, insertion of new packets and resource exhaustion may also be employed to obscure the actual content being transmitted.
One such evasion technique is tunneling, which allows an attacker to create a route through the network that’s inaccessible to IPS/IDS systems. This obscures the actual destination being accessed and may lead to serious network issues.
One popular example of this evasion technique is the Javali trojan, which conceals its content behind hardcoded strings and configuration. This helps an attacker conceal both bot commands that will be executed and what kind of information they will exfiltrate, helping them avoid detection.
These tactics serve as a prime example of how malware evolves and alters its methods to circumvent defense tools and strategies. To stay ahead of this evolving landscape, it is important to be familiar with the evasion techniques utilized by malware.
This helps you identify and prevent attacks before they spread throughout your organization. Furthermore, this allows you to prioritize resources – people, processes, technology – so that you can effectively mitigate the most hazardous threats.
Ultimately, the best way to protect your network from these types of attacks is through multiple layered defenses that go beyond signature- and behavior-based threat detection. These include:

Are Your Network Defenses Prepared for Advanced Evasion Techniques?

Are Your Network Defenses Prepared for Advanced Evasion Techniques?

Are Advanced Evasion Techniques Putting Your Cybersecurity at Risk?

Cybercriminals and hackers employ sophisticated evasion techniques to conceal their activities from detection systems. This poses a significant concern for IT security professionals, as it could potentially result in extensive harm.
AETs can also compromise network security products, which safeguard sensitive data. This increases the threat of an attack as it becomes harder for security systems to detect and prevent it.
One of the most prevalent evasion techniques involves sending information that is incorrectly interpreted to intrusion detection and prevention systems (IDPS). This type of circumvention can be especially problematic for network intrusion detection systems (NIDSs), which monitor TCP/IP traffic.
Another evasion technique involves using out-of-order fragments of data to circumvent network security devices. This is often employed by malwares and botnets to bypass antivirus, firewalls, as well as file system monitoring tools.
This method can be especially hazardous for industrial control systems that rely on IP networks to communicate with each other. Furthermore, it causes significant disruption to businesses and governments that rely heavily on IT infrastructure, as it renders those networks inoperable.
In addition to the drawbacks of this evasion technique, it may also slow down traffic throughput on your network – an essential factor in how quickly data is received and transmitted. This could have a substantial effect on your organization’s profitability.
Finally, this evasion technique can be costly and time-consuming to implement due to the extensive technical skillset and research involved. For instance, Forcepoint, a leading network security company, took four years to develop its advanced evasion testing tool.
Advanced evasion techniques can be highly effective, yet they also pose serious threats to cybersecurity professionals and organizations that depend on them. These evasions pose a grave danger to companies and governments since they compromise network security devices’ capacity for detection and blocking attacks. That is why it is essential to comprehend the drawbacks and risks associated with advanced evasion methods in order to adequately safeguard your network.

Are Advanced Evasion Techniques Putting Your Cybersecurity at Risk?

Are Advanced Evasion Techniques Putting Your Cybersecurity at Risk?

Please share this post with your friends, family, or business associates who may encounter cybersecurity attacks.