Detection rules › Sigma
New Custom Shim Database Created
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by application shims. The Microsoft Windows Application Compatibility Infrastructure/Framework (Application Shim) was created to allow for backward compatibility of software as the operating system codebase changes over time.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Persistence | T1547.009 Boot or Logon Autostart Execution: Shortcut Modification |
| Privilege Escalation | T1547.009 Boot or Logon Autostart Execution: Shortcut Modification |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| Sysmon | 11 | FileCreate |
Stages and Predicates
Stage 1: selection
or:
TargetFilename|contains: ':\Windows\apppatch\CustomSDB\'
TargetFilename|contains: ':\Windows\apppatch\Custom\'
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
TargetFilename | match |
|