Cyberis Blog

The Human Cost of Social Engineering

Adversary simulation, simulated targeted attack, red teaming… Whatever you want to call it, a technical exercise that assesses your defences by simulating the tactics, techniques and procedures of a real attacker is of great value – especially when you want to understand how well your incident response plans hold out against attack.

Simulating the whole attack chain for most adversaries means that we are not just targeting technology – we are also targeting processes and people.

EDR: Is it worth it?

When working with smaller businesses, sometimes we’re asked whether Endpoint Detection and Response solutions are worth the money, over and above traditional anti-virus.  Much of the time, EDR is used in large enterprises in conjunction with a sizeable technical team of experienced professionals who engage in active response and threat hunting as their full-time job.  It can be difficult for smaller businesses to see where EDR might fit in.


Nessus Scanning with SSH Proxies

Unfortunately, Nessus does not support SSH proxying. This is a problem when scanning remote hosts behind a bastion box, especially when it is not possible to bind or connect to a new port to the bastion box due to firewall rules. Binding a port to localhost and pointing Nessus to is also not an option as Nessus handles scanning localhost in a different way and will report issues with the scanning box itself.

In a pinch it is possible to hack around this problem by tricking the Nessus scanner into thinking it’s scanning the remote host when it is in fact connecting via a port bound to the localhost. Iptables to the rescue….

Online Password Auditing of a Domain Controller

Password auditing of a domain traditionally involves obtaining copy of the ntds.dit and performing some offline analysis which can be time consuming. The DSInternals PowerShell Module has an Active Directory password auditing cmdlet which performs checks for default, duplicate, empty and weak passwords.  The audit can be performed against a domain online via DCSync, saving the need to obtain a copy of the ntds.dit.  This can be of benefit if regular password audits are being performed.

Install DSInternals as an administrator by using:


The Dangers Of Vulnerability Scoring Dependency

Vulnerability scanning has an important role in most enterprise threat & vulnerability management programmes – it provides multiple benefits to internal security teams as they identify vulnerabilities and it can also help verify control performance.  Associated vulnerability scoring systems, such as the Common Vulnerability Scoring System (CVSS), have also gained widespread industry adoption, as they are simple to understand and usually produce repeatable results.


Bluetooth: The Spy in the Meeting Room

Bluetooth technology permeates the modern world. From smart phones to wireless speakers, fitness trackers to WiFi mesh hardware, Bluetooth has become the de facto standard for short-range wireless communications. The chances are that you have Bluetooth enabled devices near you as you read this, and, if you're regularly involved in conference calls, you've probably often used a Bluetooth enabled speaker or VoIP phone.

Let’s Talk Quantum Cryptography

Quantum computers are on the horizon and the ramifications the technology is expected to produce across a multitude of industries is game changing. They can certainly be described as a disruptive technology when taken in the context of current cryptography and will force a radical change in how secure communication is implemented. A prime reason for this is due to the significant advances they promise to provide in the factoring of large numbers.