IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Installation of Custom Shim Databases
editInstallation of Custom Shim Databases
editIdentifies the installation of custom Application Compatibility Shim databases. This Windows functionality has been abused by attackers to stealthily gain persistence and arbitrary code execution in legitimate Windows processes.
Rule type: eql
Rule indices:
- logs-endpoint.events.registry-*
- winlogbeat-*
- logs-windows.sysmon_operational-*
Severity: medium
Risk score: 47
Runs every: 5m
Searches indices from: now-9m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
References: None
Tags:
- Domain: Endpoint
- OS: Windows
- Use Case: Threat Detection
- Tactic: Persistence
- Data Source: Elastic Defend
- Data Source: Sysmon
Version: 108
Rule authors:
- Elastic
Rule license: Elastic License v2
Rule query
editregistry where host.os.type == "windows" and event.type in ("creation", "change") and
registry.path : "HKLM\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\AppCompatFlags\\Custom\\*.sdb" and
not process.executable :
("?:\\Program Files (x86)\\DesktopCentral_Agent\\swrepository\\1\\swuploads\\SAP-SLC\\SAPSetupSLC02_14-80001954\\Setup\\NwSapSetup.exe",
"?:\\$WINDOWS.~BT\\Sources\\SetupPlatform.exe",
"?:\\Program Files (x86)\\SAP\\SAPsetup\\setup\\NwSapSetup.exe",
"?:\\Program Files (x86)\\SAP\\SapSetup\\OnRebootSvc\\NWSAPSetupOnRebootInstSvc.exe",
"?:\\Program Files (x86)\\Kaspersky Lab\\Kaspersky Security for Windows Server\\kavfs.exe")
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Persistence
- ID: TA0003
- Reference URL: https://attack.mitre.org/tactics/TA0003/
-
Technique:
- Name: Event Triggered Execution
- ID: T1546
- Reference URL: https://attack.mitre.org/techniques/T1546/
-
Sub-technique:
- Name: Application Shimming
- ID: T1546.011
- Reference URL: https://attack.mitre.org/techniques/T1546/011/