User account enabled and disabled within 10 mins

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Id	3d023f64-8225-41a2-9570-2bd7c2c4535e
Rulename	User account enabled and disabled within 10 mins
Description	Identifies when a user account is enabled and then disabled within 10 minutes. This can be an indication of compromise and an adversary attempting to hide in the noise.
Severity	Medium
Tactics	Persistence PrivilegeEscalation
Techniques	T1098 T1078
Required data connectors	SecurityEvents WindowsForwardedEvents WindowsSecurityEvents
Kind	Scheduled
Query frequency	1d
Query period	25h
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Detections/SecurityEvent/UserAccountEnabledDisabled_10m.yaml
Version	1.2.3
Arm template	3d023f64-8225-41a2-9570-2bd7c2c4535e.json

KQL

let timeframe = 1d;
let spanoftime = 10m;
let threshold = 0;
  (union isfuzzy=true
    (SecurityEvent
    | where TimeGenerated > ago(timeframe+spanoftime)
    // A user account was enabled
    | where EventID == 4722
    | where AccountType =~ "User"
    | where TargetAccount !endswith "$"
    | project EnableTime = TimeGenerated, EnableEventID = EventID, EnableActivity = Activity, Computer = toupper(Computer), 
    TargetAccount = tolower(TargetAccount), TargetUserName, TargetDomainName, TargetSid, 
    AccountUsedToEnable = SubjectAccount, EnabledBySubjectUserName = SubjectUserName, EnabledBySubjectDomainName = SubjectDomainName, SIDofAccountUsedToEnable = SubjectUserSid, UserPrincipalName
    ),
    (
    WindowsEvent
    | where TimeGenerated > ago(timeframe+spanoftime)
    // A user account was enabled
    | where EventID == 4722
    | extend SubjectUserSid = tostring(EventData.SubjectUserSid)
    | extend AccountType=case(EventData.SubjectUserName endswith "$" or SubjectUserSid in ("S-1-5-18", "S-1-5-19", "S-1-5-20"), "Machine", isempty(SubjectUserSid), "", "User")
    | where AccountType =~ "User"
    | extend SubjectAccount = strcat(tostring(EventData.SubjectDomainName),"\\", tostring(EventData.SubjectUserName))
    | extend SubjectDomainName = tostring(EventData.SubjectDomainName), SubjectUserName = tostring(EventData.SubjectUserName)
    | extend TargetAccount = strcat(EventData.TargetDomainName,"\\", EventData.TargetUserName)
    | where TargetAccount !endswith "$"
    | extend Activity="4722 - A user account was enabled."
    | extend TargetUserName = tostring(EventData.TargetUserName), TargetDomainName = tostring(EventData.TargetDomainName) 
    | extend TargetSid = tostring(EventData.TargetSid)
    | extend UserPrincipalName = tostring(EventData.UserPrincipalName)
    | project EnableTime = TimeGenerated, EnableEventID = EventID, EnableActivity = Activity, Computer = toupper(Computer), 
    TargetAccount = tolower(TargetAccount), TargetUserName, TargetDomainName, TargetSid, 
    AccountUsedToEnable = SubjectAccount, EnabledBySubjectUserName = SubjectUserName, EnabledBySubjectDomainName = SubjectDomainName, SIDofAccountUsedToEnable = SubjectUserSid, UserPrincipalName
    )
  )
| join kind= inner (
  (union isfuzzy=true
    (SecurityEvent
    | where TimeGenerated > ago(timeframe)
    // A user account was disabled
    | where EventID == 4725
    | where AccountType =~ "User"
    | project DisableTime = TimeGenerated, DisableEventID = EventID, DisableActivity = Activity, Computer = toupper(Computer), 
    TargetAccount = tolower(TargetAccount), TargetUserName, TargetDomainName, TargetSid, 
    AccountUsedToDisable = SubjectAccount, DisabledBySubjectUserName = SubjectUserName, DisabledBySubjectDomainName = SubjectDomainName, SIDofAccountUsedToDisable = SubjectUserSid, UserPrincipalName
    ),
    (WindowsEvent
    | where TimeGenerated > ago(timeframe)
    // A user account was disabled
    | where EventID == 4725
    | extend SubjectUserSid = tostring(EventData.SubjectUserSid)
    | extend AccountType=case(EventData.SubjectUserName endswith "$" or SubjectUserSid in ("S-1-5-18", "S-1-5-19", "S-1-5-20"), "Machine", isempty(SubjectUserSid), "", "User")
    | where AccountType =~ "User"
    | extend SubjectAccount = strcat(tostring(EventData.SubjectDomainName),"\\", tostring(EventData.SubjectUserName))
    | extend SubjectDomainName = tostring(EventData.SubjectDomainName), SubjectUserName = tostring(EventData.SubjectUserName)
    | extend TargetAccount = strcat(EventData.TargetDomainName,"\\", EventData.TargetUserName)
    | extend TargetUserName = tostring(EventData.TargetUserName), TargetDomainName = tostring(EventData.TargetDomainName) 
    | extend TargetSid = tostring(EventData.TargetSid)
    | extend UserPrincipalName = tostring(EventData.UserPrincipalName)
    | extend Activity = "4725 - A user account was disabled."
    | project DisableTime = TimeGenerated, DisableEventID = EventID, DisableActivity = Activity, Computer = toupper(Computer), 
    TargetAccount = tolower(TargetAccount), TargetUserName, TargetDomainName, TargetSid, 
    AccountUsedToDisable = SubjectAccount, DisabledBySubjectUserName = SubjectUserName, DisabledBySubjectDomainName = SubjectDomainName, SIDofAccountUsedToDisable = SubjectUserSid, UserPrincipalName
    )
  )
) on Computer, TargetAccount
| where DisableTime - EnableTime < spanoftime
| extend TimeDelta = DisableTime - EnableTime
| where tolong(TimeDelta) >= threshold
| project TimeDelta, EnableTime, EnableEventID, EnableActivity, Computer, TargetAccount, TargetSid, TargetUserName, TargetDomainName, UserPrincipalName, 
AccountUsedToEnable, SIDofAccountUsedToEnable, DisableTime, DisableEventID, DisableActivity, AccountUsedToDisable, SIDofAccountUsedToDisable, 
EnabledBySubjectUserName, EnabledBySubjectDomainName, DisabledBySubjectUserName, DisabledBySubjectDomainName
| extend HostName = tostring(split(Computer, ".")[0]), DomainIndex = toint(indexof(Computer, '.'))
| extend HostNameDomain = iff(DomainIndex != -1, substring(Computer, DomainIndex + 1), Computer)
| project-away DomainIndex

YAML

description: |
    'Identifies when a user account is enabled and then disabled within 10 minutes. This can be an indication of compromise and an adversary attempting to hide in the noise.'
kind: Scheduled
tactics:
- Persistence
- PrivilegeEscalation
requiredDataConnectors:
- connectorId: SecurityEvents
  dataTypes:
  - SecurityEvent
- connectorId: WindowsSecurityEvents
  dataTypes:
  - SecurityEvents
- connectorId: WindowsForwardedEvents
  dataTypes:
  - WindowsEvent
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Detections/SecurityEvent/UserAccountEnabledDisabled_10m.yaml
severity: Medium
name: User account enabled and disabled within 10 mins
metadata:
  support:
    tier: Community
  author:
    name: Microsoft Security Research
  categories:
    domains:
    - Security - Others
    - Identity
  source:
    kind: Community
triggerThreshold: 0
queryPeriod: 25h
query: |
  let timeframe = 1d;
  let spanoftime = 10m;
  let threshold = 0;
    (union isfuzzy=true
      (SecurityEvent
      | where TimeGenerated > ago(timeframe+spanoftime)
      // A user account was enabled
      | where EventID == 4722
      | where AccountType =~ "User"
      | where TargetAccount !endswith "$"
      | project EnableTime = TimeGenerated, EnableEventID = EventID, EnableActivity = Activity, Computer = toupper(Computer), 
      TargetAccount = tolower(TargetAccount), TargetUserName, TargetDomainName, TargetSid, 
      AccountUsedToEnable = SubjectAccount, EnabledBySubjectUserName = SubjectUserName, EnabledBySubjectDomainName = SubjectDomainName, SIDofAccountUsedToEnable = SubjectUserSid, UserPrincipalName
      ),
      (
      WindowsEvent
      | where TimeGenerated > ago(timeframe+spanoftime)
      // A user account was enabled
      | where EventID == 4722
      | extend SubjectUserSid = tostring(EventData.SubjectUserSid)
      | extend AccountType=case(EventData.SubjectUserName endswith "$" or SubjectUserSid in ("S-1-5-18", "S-1-5-19", "S-1-5-20"), "Machine", isempty(SubjectUserSid), "", "User")
      | where AccountType =~ "User"
      | extend SubjectAccount = strcat(tostring(EventData.SubjectDomainName),"\\", tostring(EventData.SubjectUserName))
      | extend SubjectDomainName = tostring(EventData.SubjectDomainName), SubjectUserName = tostring(EventData.SubjectUserName)
      | extend TargetAccount = strcat(EventData.TargetDomainName,"\\", EventData.TargetUserName)
      | where TargetAccount !endswith "$"
      | extend Activity="4722 - A user account was enabled."
      | extend TargetUserName = tostring(EventData.TargetUserName), TargetDomainName = tostring(EventData.TargetDomainName) 
      | extend TargetSid = tostring(EventData.TargetSid)
      | extend UserPrincipalName = tostring(EventData.UserPrincipalName)
      | project EnableTime = TimeGenerated, EnableEventID = EventID, EnableActivity = Activity, Computer = toupper(Computer), 
      TargetAccount = tolower(TargetAccount), TargetUserName, TargetDomainName, TargetSid, 
      AccountUsedToEnable = SubjectAccount, EnabledBySubjectUserName = SubjectUserName, EnabledBySubjectDomainName = SubjectDomainName, SIDofAccountUsedToEnable = SubjectUserSid, UserPrincipalName
      )
    )
  | join kind= inner (
    (union isfuzzy=true
      (SecurityEvent
      | where TimeGenerated > ago(timeframe)
      // A user account was disabled
      | where EventID == 4725
      | where AccountType =~ "User"
      | project DisableTime = TimeGenerated, DisableEventID = EventID, DisableActivity = Activity, Computer = toupper(Computer), 
      TargetAccount = tolower(TargetAccount), TargetUserName, TargetDomainName, TargetSid, 
      AccountUsedToDisable = SubjectAccount, DisabledBySubjectUserName = SubjectUserName, DisabledBySubjectDomainName = SubjectDomainName, SIDofAccountUsedToDisable = SubjectUserSid, UserPrincipalName
      ),
      (WindowsEvent
      | where TimeGenerated > ago(timeframe)
      // A user account was disabled
      | where EventID == 4725
      | extend SubjectUserSid = tostring(EventData.SubjectUserSid)
      | extend AccountType=case(EventData.SubjectUserName endswith "$" or SubjectUserSid in ("S-1-5-18", "S-1-5-19", "S-1-5-20"), "Machine", isempty(SubjectUserSid), "", "User")
      | where AccountType =~ "User"
      | extend SubjectAccount = strcat(tostring(EventData.SubjectDomainName),"\\", tostring(EventData.SubjectUserName))
      | extend SubjectDomainName = tostring(EventData.SubjectDomainName), SubjectUserName = tostring(EventData.SubjectUserName)
      | extend TargetAccount = strcat(EventData.TargetDomainName,"\\", EventData.TargetUserName)
      | extend TargetUserName = tostring(EventData.TargetUserName), TargetDomainName = tostring(EventData.TargetDomainName) 
      | extend TargetSid = tostring(EventData.TargetSid)
      | extend UserPrincipalName = tostring(EventData.UserPrincipalName)
      | extend Activity = "4725 - A user account was disabled."
      | project DisableTime = TimeGenerated, DisableEventID = EventID, DisableActivity = Activity, Computer = toupper(Computer), 
      TargetAccount = tolower(TargetAccount), TargetUserName, TargetDomainName, TargetSid, 
      AccountUsedToDisable = SubjectAccount, DisabledBySubjectUserName = SubjectUserName, DisabledBySubjectDomainName = SubjectDomainName, SIDofAccountUsedToDisable = SubjectUserSid, UserPrincipalName
      )
    )
  ) on Computer, TargetAccount
  | where DisableTime - EnableTime < spanoftime
  | extend TimeDelta = DisableTime - EnableTime
  | where tolong(TimeDelta) >= threshold
  | project TimeDelta, EnableTime, EnableEventID, EnableActivity, Computer, TargetAccount, TargetSid, TargetUserName, TargetDomainName, UserPrincipalName, 
  AccountUsedToEnable, SIDofAccountUsedToEnable, DisableTime, DisableEventID, DisableActivity, AccountUsedToDisable, SIDofAccountUsedToDisable, 
  EnabledBySubjectUserName, EnabledBySubjectDomainName, DisabledBySubjectUserName, DisabledBySubjectDomainName
  | extend HostName = tostring(split(Computer, ".")[0]), DomainIndex = toint(indexof(Computer, '.'))
  | extend HostNameDomain = iff(DomainIndex != -1, substring(Computer, DomainIndex + 1), Computer)
  | project-away DomainIndex  
relevantTechniques:
- T1098
- T1078
id: 3d023f64-8225-41a2-9570-2bd7c2c4535e
queryFrequency: 1d
entityMappings:
- entityType: Account
  fieldMappings:
  - columnName: AccountUsedToEnable
    identifier: FullName
  - columnName: EnabledBySubjectUserName
    identifier: Name
  - columnName: EnabledBySubjectDomainName
    identifier: NTDomain
- entityType: Account
  fieldMappings:
  - columnName: AccountUsedToDisable
    identifier: FullName
  - columnName: DisabledBySubjectUserName
    identifier: Name
  - columnName: DisabledBySubjectDomainName
    identifier: NTDomain
- entityType: Account
  fieldMappings:
  - columnName: TargetAccount
    identifier: FullName
  - columnName: TargetUserName
    identifier: Name
  - columnName: TargetDomainName
    identifier: NTDomain
- entityType: Account
  fieldMappings:
  - columnName: TargetSid
    identifier: Sid
- entityType: Host
  fieldMappings:
  - columnName: Computer
    identifier: FullName
  - columnName: HostName
    identifier: HostName
  - columnName: HostNameDomain
    identifier: NTDomain
triggerOperator: gt
version: 1.2.3

ARM