22 lines
917 B
Markdown
22 lines
917 B
Markdown
## Application Shimming
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MITRE ATT&CK Technique: [T1138](https://attack.mitre.org/wiki/Technique/T1138)
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#### Deploying a custom shim database to users requires the following actions:
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##### 1.) Placing the custom shim database (*.sdb file) in a location to which the user’s computer has access (either locally or on the network)
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##### 2.) Possibly calling the sdbinst.exe command-line utility to install the custom shim database locally.
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##### 3.) Registry Modification - This is completed either manually or by an installation tool.
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HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Custom
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HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\InstalledSDB
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#### Detecting the shim execution is difficult. We suggest detection of Shim Installation.
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## Test Script
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[AppCompatShims](https://github.com/redcanaryco/atomic-red-team/blob/master/Windows/Payloads/AppCompatShims)
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