Prerequisites for assets monitored in agent-based mode

Flows matrix

This matrix sums up the flows that may be required to monitor assets using the Cyberwatch agent.

Software prerequisites

• Operating System among those covered in the list of supported operating systems
• Additional requirements for Windows:
  • PowerShell v2 or higher must be installed, can be downloaded on the official Microsoft Update Catalog website
  • Microsoft .NET Framework v4.5.2 or higher must be installed for Windows 2008 or higher, can be downloaded on the official Microsoft website
  • Microsoft .NET Framework v3.5 must be installed for Windows 2003, can be downloaded on the official Microsoft website
  • Windows Update service (wuauserv) must be enabled
  • Windows Update Agent v6.1.0022.4 or higher must be installed

Windows Server 2008 and Windows 7 assets also must support SHA-2 hash algorithms as described in the official Microsoft documentation. In summary, two updates are required:

• SHA-2 Code Signing Support, by installing KB4474419
• SHA-2 Related Servicing Stack Updates
  • by installing KB4490628 on Windows 7 SP1 and Windows Server 2008 R2 SP1
  • by installing KB4493730 on Windows Server 2008 SP2
• Additional requirements for macOS (only for Python3 agents):
  • The asset needs an installation of Xcode Command Line Tools, a lighter version of the Xcode package, which extends functionalities related to Python module execution. The absence of this prerequisite will raise the following error xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun, which can be solved by running xcode-select --install.
  • An asset with M1 or M2 Mac processor, needs Rosetta 2, in order to be compatible with our agent. This installation involves running the command softwareupdate --install-rosetta and then accepting a License Agreement. For automation purposes, the command softwareupdate --install-rosetta --agree-to-license allows to override the acceptance of this agreement.
  • Concerning Python3 dependencies management, it’s automatic since version 4.12 of the agent. The appearance of a ModuleNotFoundError: No module named 'requests' error means the request could not be successful, and requires to follow this procedure.