Microsoft Sentinel Analytic Rules
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TIE LSASS Memory

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Id7851f57c-98b6-43c6-9747-9bb7cf11f21c
RulenameTIE LSASS Memory
DescriptionSearches for OS Credentials dumping attacks.
SeverityHigh
TacticsCredentialAccess
TechniquesT1003.001
Required data connectorsTenableIE
KindScheduled
Query frequency2h
Query period2h
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Tenable App/Analytic Rules/TIELSASSMemory.yaml
Version1.0.1
Arm template7851f57c-98b6-43c6-9747-9bb7cf11f21c.json
Deploy To Azure
// For the query to work properly, make sure you have imported the afad_parser.yaml parser into the workspace
// Retrieve the parser here: https://aka.ms/sentinel-TenableApp-afad-parser
// Then, create the Kusto Function with alias afad_parser
afad_parser
  | where MessageType == 2 and Codename == "OS Credential Dumping: LSASS Memory"
  | extend HostName = tostring(split(Host, '.', 0)[0]), DnsDomain = tostring(strcat_array(array_slice(split(Host, '.'), 1, -1), '.'))
description: |
    'Searches for OS Credentials dumping attacks.'
kind: Scheduled
tactics:
- CredentialAccess
requiredDataConnectors:
- connectorId: TenableIE
  dataTypes:
  - Tenable_IE_CL
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Tenable App/Analytic Rules/TIELSASSMemory.yaml
severity: High
name: TIE LSASS Memory
triggerThreshold: 0
queryPeriod: 2h
query: |
  // For the query to work properly, make sure you have imported the afad_parser.yaml parser into the workspace
  // Retrieve the parser here: https://aka.ms/sentinel-TenableApp-afad-parser
  // Then, create the Kusto Function with alias afad_parser
  afad_parser
    | where MessageType == 2 and Codename == "OS Credential Dumping: LSASS Memory"
    | extend HostName = tostring(split(Host, '.', 0)[0]), DnsDomain = tostring(strcat_array(array_slice(split(Host, '.'), 1, -1), '.'))  
relevantTechniques:
- T1003.001
id: 7851f57c-98b6-43c6-9747-9bb7cf11f21c
queryFrequency: 2h
entityMappings:
- entityType: Host
  fieldMappings:
  - columnName: HostName
    identifier: HostName
  - columnName: DnsDomain
    identifier: DnsDomain
triggerOperator: gt
version: 1.0.1