AD user enabled and password not set within 48 hours
Id | 62085097-d113-459f-9ea7-30216f2ee6af |
Rulename | AD user enabled and password not set within 48 hours |
Description | Identifies when an account is enabled with a default password and the password is not set by the user within 48 hours. Effectively, there is an event 4722 indicating an account was enabled and within 48 hours, no event 4723 occurs which indicates there was no attempt by the user to set the password. This will show any attempts (success or fail) that occur after 48 hours, which can indicate too long of a time period in setting the password to something that only the user knows. It is recommended that this time period is adjusted per your internal company policy. |
Severity | Low |
Tactics | Persistence |
Techniques | T1098 |
Required data connectors | SecurityEvents WindowsSecurityEvents |
Kind | Scheduled |
Query frequency | 1d |
Query period | 3d |
Trigger threshold | 0 |
Trigger operator | gt |
Source Uri | https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Windows Security Events/Analytic Rules/password_not_set.yaml |
Version | 1.0.4 |
Arm template | 62085097-d113-459f-9ea7-30216f2ee6af.json |
let starttime = 3d;
let SecEvents = materialize ( SecurityEvent | where TimeGenerated >= ago(starttime)
| where EventID in (4722,4723) | where TargetUserName !endswith "$"
| project TimeGenerated, EventID, Activity, Computer, TargetAccount, TargetSid, SubjectAccount, SubjectUserSid);
let userEnable = SecEvents
| extend EventID4722Time = TimeGenerated
// 4722: User Account Enabled
| where EventID == 4722
| project Time_Event4722 = TimeGenerated, TargetAccount, TargetSid, SubjectAccount_Event4722 = SubjectAccount, SubjectUserSid_Event4722 = SubjectUserSid, Activity_4722 = Activity, Computer_4722 = Computer;
let userPwdSet = SecEvents
// 4723: Attempt made by user to set password
| where EventID == 4723
| project Time_Event4723 = TimeGenerated, TargetAccount, TargetSid, SubjectAccount_Event4723 = SubjectAccount, SubjectUserSid_Event4723 = SubjectUserSid, Activity_4723 = Activity, Computer_4723 = Computer;
userEnable | join kind=leftouter userPwdSet on TargetAccount, TargetSid
| extend PasswordSetAttemptDelta_Min = datetime_diff('minute', Time_Event4723, Time_Event4722)
| where PasswordSetAttemptDelta_Min > 2880 or isempty(PasswordSetAttemptDelta_Min)
| project-away TargetAccount1, TargetSid1
| extend Reason = @"User either has not yet attempted to set the initial password after account was enabled or it occurred after 48 hours"
| order by Time_Event4722 asc
| project-reorder Time_Event4722, Time_Event4723, PasswordSetAttemptDelta_Min, TargetAccount, TargetSid
| extend Computer = coalesce(Computer_4723, Computer_4722)
| extend HostName = tostring(split(Computer, ".")[0]), DomainIndex = toint(indexof(Computer, '.'))
| extend HostNameDomain = iff(DomainIndex != -1, substring(Computer, DomainIndex + 1), Computer)
| extend AccountName = tostring(split(TargetAccount, "\\")[1]), AccountNTDomain = tostring(split(TargetAccount, "\\")[0])
| project-away DomainIndex
relevantTechniques:
- T1098
name: AD user enabled and password not set within 48 hours
requiredDataConnectors:
- dataTypes:
- SecurityEvent
connectorId: SecurityEvents
- dataTypes:
- SecurityEvent
connectorId: WindowsSecurityEvents
entityMappings:
- fieldMappings:
- identifier: FullName
columnName: TargetAccount
- identifier: Name
columnName: AccountName
- identifier: NTDomain
columnName: AccountNTDomain
entityType: Account
- fieldMappings:
- identifier: Sid
columnName: TargetSid
entityType: Account
- fieldMappings:
- identifier: FullName
columnName: Computer
- identifier: HostName
columnName: HostName
- identifier: DnsDomain
columnName: HostNameDomain
entityType: Host
triggerThreshold: 0
id: 62085097-d113-459f-9ea7-30216f2ee6af
tactics:
- Persistence
version: 1.0.4
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Windows Security Events/Analytic Rules/password_not_set.yaml
queryPeriod: 3d
kind: Scheduled
queryFrequency: 1d
severity: Low
status: Available
description: |
'Identifies when an account is enabled with a default password and the password is not set by the user within 48 hours.
Effectively, there is an event 4722 indicating an account was enabled and within 48 hours, no event 4723 occurs which
indicates there was no attempt by the user to set the password. This will show any attempts (success or fail) that occur
after 48 hours, which can indicate too long of a time period in setting the password to something that only the user knows.
It is recommended that this time period is adjusted per your internal company policy.'
query: |
let starttime = 3d;
let SecEvents = materialize ( SecurityEvent | where TimeGenerated >= ago(starttime)
| where EventID in (4722,4723) | where TargetUserName !endswith "$"
| project TimeGenerated, EventID, Activity, Computer, TargetAccount, TargetSid, SubjectAccount, SubjectUserSid);
let userEnable = SecEvents
| extend EventID4722Time = TimeGenerated
// 4722: User Account Enabled
| where EventID == 4722
| project Time_Event4722 = TimeGenerated, TargetAccount, TargetSid, SubjectAccount_Event4722 = SubjectAccount, SubjectUserSid_Event4722 = SubjectUserSid, Activity_4722 = Activity, Computer_4722 = Computer;
let userPwdSet = SecEvents
// 4723: Attempt made by user to set password
| where EventID == 4723
| project Time_Event4723 = TimeGenerated, TargetAccount, TargetSid, SubjectAccount_Event4723 = SubjectAccount, SubjectUserSid_Event4723 = SubjectUserSid, Activity_4723 = Activity, Computer_4723 = Computer;
userEnable | join kind=leftouter userPwdSet on TargetAccount, TargetSid
| extend PasswordSetAttemptDelta_Min = datetime_diff('minute', Time_Event4723, Time_Event4722)
| where PasswordSetAttemptDelta_Min > 2880 or isempty(PasswordSetAttemptDelta_Min)
| project-away TargetAccount1, TargetSid1
| extend Reason = @"User either has not yet attempted to set the initial password after account was enabled or it occurred after 48 hours"
| order by Time_Event4722 asc
| project-reorder Time_Event4722, Time_Event4723, PasswordSetAttemptDelta_Min, TargetAccount, TargetSid
| extend Computer = coalesce(Computer_4723, Computer_4722)
| extend HostName = tostring(split(Computer, ".")[0]), DomainIndex = toint(indexof(Computer, '.'))
| extend HostNameDomain = iff(DomainIndex != -1, substring(Computer, DomainIndex + 1), Computer)
| extend AccountName = tostring(split(TargetAccount, "\\")[1]), AccountNTDomain = tostring(split(TargetAccount, "\\")[0])
| project-away DomainIndex
triggerOperator: gt
{
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"workspace": {
"type": "String"
}
},
"resources": [
{
"apiVersion": "2024-01-01-preview",
"id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/62085097-d113-459f-9ea7-30216f2ee6af')]",
"kind": "Scheduled",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/62085097-d113-459f-9ea7-30216f2ee6af')]",
"properties": {
"alertRuleTemplateName": "62085097-d113-459f-9ea7-30216f2ee6af",
"customDetails": null,
"description": "'Identifies when an account is enabled with a default password and the password is not set by the user within 48 hours.\nEffectively, there is an event 4722 indicating an account was enabled and within 48 hours, no event 4723 occurs which\nindicates there was no attempt by the user to set the password. This will show any attempts (success or fail) that occur\nafter 48 hours, which can indicate too long of a time period in setting the password to something that only the user knows.\nIt is recommended that this time period is adjusted per your internal company policy.'\n",
"displayName": "AD user enabled and password not set within 48 hours",
"enabled": true,
"entityMappings": [
{
"entityType": "Account",
"fieldMappings": [
{
"columnName": "TargetAccount",
"identifier": "FullName"
},
{
"columnName": "AccountName",
"identifier": "Name"
},
{
"columnName": "AccountNTDomain",
"identifier": "NTDomain"
}
]
},
{
"entityType": "Account",
"fieldMappings": [
{
"columnName": "TargetSid",
"identifier": "Sid"
}
]
},
{
"entityType": "Host",
"fieldMappings": [
{
"columnName": "Computer",
"identifier": "FullName"
},
{
"columnName": "HostName",
"identifier": "HostName"
},
{
"columnName": "HostNameDomain",
"identifier": "DnsDomain"
}
]
}
],
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Windows Security Events/Analytic Rules/password_not_set.yaml",
"query": "let starttime = 3d;\nlet SecEvents = materialize ( SecurityEvent | where TimeGenerated >= ago(starttime)\n| where EventID in (4722,4723) | where TargetUserName !endswith \"$\"\n| project TimeGenerated, EventID, Activity, Computer, TargetAccount, TargetSid, SubjectAccount, SubjectUserSid);\nlet userEnable = SecEvents\n| extend EventID4722Time = TimeGenerated\n// 4722: User Account Enabled\n| where EventID == 4722\n| project Time_Event4722 = TimeGenerated, TargetAccount, TargetSid, SubjectAccount_Event4722 = SubjectAccount, SubjectUserSid_Event4722 = SubjectUserSid, Activity_4722 = Activity, Computer_4722 = Computer;\nlet userPwdSet = SecEvents\n// 4723: Attempt made by user to set password\n| where EventID == 4723\n| project Time_Event4723 = TimeGenerated, TargetAccount, TargetSid, SubjectAccount_Event4723 = SubjectAccount, SubjectUserSid_Event4723 = SubjectUserSid, Activity_4723 = Activity, Computer_4723 = Computer;\nuserEnable | join kind=leftouter userPwdSet on TargetAccount, TargetSid\n| extend PasswordSetAttemptDelta_Min = datetime_diff('minute', Time_Event4723, Time_Event4722)\n| where PasswordSetAttemptDelta_Min > 2880 or isempty(PasswordSetAttemptDelta_Min)\n| project-away TargetAccount1, TargetSid1\n| extend Reason = @\"User either has not yet attempted to set the initial password after account was enabled or it occurred after 48 hours\"\n| order by Time_Event4722 asc\n| project-reorder Time_Event4722, Time_Event4723, PasswordSetAttemptDelta_Min, TargetAccount, TargetSid\n| extend Computer = coalesce(Computer_4723, Computer_4722)\n| extend HostName = tostring(split(Computer, \".\")[0]), DomainIndex = toint(indexof(Computer, '.'))\n| extend HostNameDomain = iff(DomainIndex != -1, substring(Computer, DomainIndex + 1), Computer)\n| extend AccountName = tostring(split(TargetAccount, \"\\\\\")[1]), AccountNTDomain = tostring(split(TargetAccount, \"\\\\\")[0])\n| project-away DomainIndex\n",
"queryFrequency": "P1D",
"queryPeriod": "P3D",
"severity": "Low",
"status": "Available",
"subTechniques": [],
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"Persistence"
],
"techniques": [
"T1098"
],
"templateVersion": "1.0.4",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0
},
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
}
]
}