In the context of a Red Team assessment, in this post I’ll look at some options for using SOCKS to gain external access to an internal network. I’ll cover the obvious methods and why I’m overlooking them, a crude method using standard tools (this post) and a more refined approach using modified tools (in part 2). Continue reading
By way of an introduction to our talk at Black Hat Europe, Security Advisory EMEAR would like to share the background on our recent research into some common Active Directory integration solutions. Just as with Windows, these solutions can be utilized to join UNIX infrastructure to enterprises’ Active Directory forests. Continue reading
Presentation on Active Directory integration solutions for UNIX (as given at Black Hat Europe 2018). Continue reading
Presentation on logging and auditing strategies (as given at Secure South West 11). Continue reading
Microsoft released a rolling upgrade of Windows 10 in October 2017. The “Fall Creators” edition (version 1709, codename Redstone 3) contains a new feature called “Controlled Folder Access”, which is designed to combat ransomware attacks. Continue reading
Lateral Movement is a method used by attackers (or malware) against a network Domain. After an initial device is compromised (typically, a user’s workstation), the attacker extracts passwords from memory, or obtains encrypted password hashes from the system for cracking or direct use (i.e. Pass the Hash). The attacker then attempts to login to other systems using those credentials to search for cached passwords of privileged Domain accounts. Usually, the local Administrator account is targeted as the password is often the same on all systems (due to the common practice of deploying systems from a master image), but service accounts, etc. can also be targeted. Continue reading
In the modern age, where computers are used for nearly everything we do, the damage that can be caused to a company by cyber-attacks is substantial, with companies losing millions in regulatory fines, compensation and declining share prices. While some of these breaches have been caused by vulnerabilities within the target company’s infrastructure/software, a large quantity of them began with a phishing attack. Continue reading
The Bash Bunny is the most recent attack tool released by Hak5 for use by penetration testers. Although the primary focus of the tool is red/black/purple team engagements, it is a dynamic device allowing reconfiguration to suit the scope of work. Continue reading
At Portcullis, one of the most frequent assessments we perform are breakouts. One of the main challenges we face during these assessments is to get command execution that can either help escalate our privileges or allow us to gain access to different systems on the network. Continue reading
This post describes how Remote Desktop Protocol (RDP) connections can be vulnerable to a downgrade attack if Terminal Servers are configured insecurely. Continue reading