Cobalt Strike 4.6: The Ultimate Red Team Tool
Cobalt Strike is a software suite for adversary simulation and red team operations. It allows security professionals to emulate the tactics and techniques of advanced threat actors in a network. Cobalt Strike has been used by penetration testers, red
teams, and threat actors for years, and it is constantly updated with new features and capabilities.

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One of the most recent updates is Cobalt Strike 4.6, which was released on November 17, 2021. This version introduces several improvements and enhancements, such as:


Support for Windows 11 and Server 2022
New Malleable C2 profiles for stealthy command and control
Improved lateral movement and privilege escalation workflows
New post-exploitation modules for credential harvesting, persistence, and data exfiltration
Integration with Metasploit Framework 6.1
Bug fixes and performance optimizations

Cobalt Strike 4.6 is the most powerful and versatile version of Cobalt Strike yet. It gives red teams the ability to create realistic and customized scenarios that challenge the blue team's defenses and detection capabilities. Cobalt Strike 4.6 also
helps red teams to operate more efficiently and effectively, by providing them with a comprehensive set of tools and options for every stage of the attack lifecycle.

If you want to learn more about Cobalt Strike 4.6, you can visit the official website[^1^] or read the release notes[^2^]. You can also download a trial version or request a quote for a full license[^1^]. Cobalt Strike 4.6 is compatible with Windows,
Linux, and macOS platforms.



Cobalt Strike 4.6 is not a tool for malicious hackers or cybercriminals. It is a professional tool for authorized security assessments and training purposes only. Using Cobalt Strike 4.6 without permission or authorization may result in legal
consequences.


In this article, we will explore some of the main features and benefits of Cobalt Strike 4.6, and how they can help red teams to conduct more realistic and effective simulations.

Support for Windows 11 and Server 2022
Windows 11 and Server 2022 are the latest versions of Microsoft's operating systems, which introduce new security features and enhancements. For example, Windows 11 requires TPM 2.0 and Secure Boot to be enabled, and supports VBS (Virtualization Based
Security) and HVCI (Hypervisor-Enforced Code Integrity) by default. Windows Server 2022 also supports Secured-core server capabilities, which protect the system from firmware and kernel-level attacks.

Cobalt Strike 4.6 is fully compatible with Windows 11 and Server 2022, and can bypass or evade some of their security mechanisms. For instance, Cobalt Strike 4.6 can inject its Beacon payload into processes that are protected by VBS and HVCI, using a
technique called Doppelgänging. Cobalt Strike 4.6 can also leverage its Malleable C2 profiles to blend in with the network traffic of Windows 11 and Server 2022, and avoid detection by network defenders.

New Malleable C2 Profiles
Malleable C2 is a feature of Cobalt Strike that allows red teams to customize the appearance and behavior of their command and control (C2) channels. Malleable C2 profiles are scripts that define how the Beacon payload communicates with the team server,
such as the URI paths, headers, parameters, encryption keys, jitter, sleep time, user-agent strings, etc. Malleable C2 profiles can also specify how the Beacon payload stages itself, executes commands, spawns processes, injects DLLs, etc.

Cobalt Strike 4.6 comes with several new Malleable C2 profiles that mimic the network signatures of legitimate applications and protocols. For example, there are profiles that emulate Zoom, Teams, Discord, Slack, Dropbox, OneDrive, Google Drive, Gmail,
Outlook, Netflix, Spotify, YouTube, etc. These profiles can help red teams to hide their C2 traffic among normal network activity, and reduce the chances of being blocked or flagged by firewalls or IDS/IPS systems.

Improved Lateral Movement and Privilege Escalation Workflows
Lateral movement and privilege escalation are two essential techniques for red teams to expand their foothold and access sensitive resources in a target network. Lateral movement refers to moving from one compromised host to another within the same
network or domain. Privilege escalation refers to gaining higher privileges or permissions on a compromised host or domain.

Cobalt Strike 4.6 improves the workflows for lateral movement and privilege escalation by providing more options and modules for these tasks. For example, Cobalt Strike 4.6 supports SMB over QUIC (SMBQ), which is a new protocol that allows SMB
communication over UDP port 443. SMBQ can be used to perform lateral movement across network boundaries or firewalls that block traditional SMB ports. Cobalt Strike 4.6 also supports RDP over HTTPS (RDPI), which is a technique that tunnels RDP traffic
over HTTP port 443. RDPI can be used to access remote desktops without exposing RDP ports to the internet.

Cobalt Strike 4.6 also adds new modules for privilege escalation, such as PrintNightmare (CVE-2021-1675), PetitPotam (CVE-2021-36942), HiveNightmare (CVE-2021-36934), SeriousSAM (CVE-2021-36936), etc. These modules exploit known vulnerabilities in
Windows systems or services to elevate privileges or gain access to domain controllers.
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