Let's create a new HTTP listener from the main dashboard: We will skip the installation and creation of a standard listener, as it is well covered in the official Covenant Wiki. We will use the open source Covenant C2 framework for this. The first step will be to configure our Command and Control server to accept connections from the implants.
Drb3 emulator injector kill fail windows#
We will assume basic familiarity with Windows command line and the ability of the reader to build the necessary tools. 1x Windows VM (ideally running SysMon, SwiftOnSecurity's config will do)ĭISCLAMER: Set up of the tools and the testing environment is not covered comprehensively within this lab.Given this will be quite a detailed walkthrough, we've split it into two parts, where we'll improve our initial payload in the next lab to include two further defense evasion techniques in API unhooking and ETW bypasses.įor each attacker's step, we will analyse the various detection opportunities that either security products or SOC analysts could employ, alongside the most common attacker opsec pitfalls.ĭespite the final outcome appearing quite complex, we will try to break it down to its fundamental steps to make it more accessible. The DLL will spawn a new process and inject an AMSI-bypassing shellcode into it.Drop a DLL on disk and load it via registration-free COM activation.More specifically, the outcome of this workshop will be the creation of an HTA file that will do the following: One of the core concepts of the first workshop was "Defense Evasion" geared towards "Initial Access". In this lab, we are going to build an initial access payload able to evade the most common endpoint protection mechanisms. This included the offensive and defensive use of API hooking, as well as the theft of cookies to enabled 'session hijacking'.Ī recording of the first workshop can be found here and the slides are available here.
Drb3 emulator injector kill fail series#
In the first part of F-Secure Consulting's Attack Detection Fundamentals workshop series for 2021, we covered advanced defense evasion and credential access techniques targeting Windows endpoints.
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