Nessus is an enterprise vulnerability scanner that can perform external and internal credentialed scans and can support a continuous vulnerability management program. Nessus favors ease of use as compared to granular control over scanning which allows quick and efficient scanning configuration. Nessus comes with many pre-configured scans for PCI-DSS compliance, OVAL, and SCAP scanning, and many scans for novel threats such as Solarigate, CISA threat advisories, Log4Shell, Ransomware attacks, and more. Watch the video below to get the full scoop on how Nessus can support enterprise vulnerability management.
Software
Read more
What is Snyk? It’s classified as an SCA (software composition analysis) security tool meaning it scans your source code for use of known vulnerabilities in functions, libraries, packages, and can also scan entire docker images, cloud servers, and IaC (Infrastructure as Code) deployments for vulnerabilities. Watch the video below for a summary and demo on how Snyk’s can contribute to your DevSecOps program.
In part 1 of PHP Malware series, we learned what a web-shell is and learned some basic ways that an attacker can build web-shell in PHP. In part two we took a look at how web-shells can be hidden using base 64 encoding and AES encryption techniques. In part three we’re gonna look at other crafty ways that an attacker could obfuscate PHP web shell or other malware such as a stealer which would exfiltrate sensitive data as it’s processed by a website. Cyber criminals want to avoid malware being found, and when it is found, they want it to be difficult for a researcher to discover what the malware is doing. An an attack technique is novel, attackers don’t want defensive security researchers to be able to use the technique information to build defensive strategy or make the information public. In order to demonstrate the skill’s of reverse engineering…
In part 1 of this series on PHP malware, we learned what a web shell is and looked at some basic examples. Basic web-shells are not too difficult to find since there are only so many commands that can be used to execute a string as a shell command. However, most attackers would not include a basic web shell such as the ones discussed in the first video. They know it would be much too easy to find and dwell time would be short. Instead the attacker will encode or encrypt the malware so it is more difficult to find. Also, there is an important difference between encrypting and encoding. Before we look at some more advanced ways to hide malware, let’s understand the difference between these two terms. What is Encoding? Encoding refers to the process of converting data from one form to another. Encoding does not normally imply…
In this this series of articles and videos, I will explore some PHP malware code that has been publicly published. All the samples discussed are derived from a GitHub repository maintained by marcocesarato. The advice from Syspect CyberSecurity Consulting is to always maintain solid web-server security through hardened configuration and monitoring, and vulnerability scanning both internal and external surfaces with a tool such as CISOfy’s Lynis or Greenbone’s GVM. For an example of solid LAMP stack server security you can visit the Syspect’s VPS Deploy WordPress GitHub repository which is a tool for automatically deploying a WordPress website on a hardened Linux VPS Server. If you don’t want to secure your own WordPress installation, you can hire a trained security consultant such as Syspect CyberSecurity Consulting, or you can use another 3rd party managed hosting provider. PHP is a scripting language which means its source code is usually in human…