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CY-646: password expired alert #595

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merged 1 commit into from
Jul 3, 2024
Merged

CY-646: password expired alert #595

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2 changes: 1 addition & 1 deletion cyences_app_for_splunk/default/data/models/Cyences_Authentication.json
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Original file line number Diff line number Diff line change
Expand Up @@ -737,7 +737,7 @@
"editable": true,
"comment": "",
"calculationType": "Eval",
"expression": "if((EventCode=4768 OR EventCode=4771), Result_Code, coalesce(error_code,Error_Code, \"unknown\"))"
"expression": "case(EventCode=4768, Result_Code, EventCode=4771, Failure_Code, true(), coalesce(error_code, Error_Code, \"unknown\"))"
}
],
"constraints": [
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6 changes: 5 additions & 1 deletion cyences_app_for_splunk/default/macros.conf
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Expand Up @@ -777,6 +777,9 @@ definition = search *
[cs_ad_login_failure_due_to_password_expire_filter]
definition = search *

[cs_ad_login_failure_due_to_credential_revoked_filter]
definition = search *

[cs_windows_host_missing_update_filter]
definition = search *
iseval = 0
Expand Down Expand Up @@ -1328,8 +1331,9 @@ definition = Authentication.app=*
iseval = 0

[cs_authentication_password_expire_event_filter]
definition = (Authentication.error_code!="0xC0000071") (Authentication.error_code!="0x17")
definition = (Authentication.error_code!="0xC0000071") (Authentication.error_code!="0x17") (Authentication.error_code!="0x12")
# error_code="0xC0000071" or "0x17" Windows Password Expired events
# error_code="0x12" Credentials have been revoked
# Apply filter on Authentication.* field (tstats where condition filter format, you can use !=, =, OR and AND condition)
iseval = 0

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39 changes: 36 additions & 3 deletions cyences_app_for_splunk/default/savedsearches.conf
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Expand Up @@ -4645,7 +4645,7 @@ action.cyences_send_email_action = 1
action.cyences_notable_event_action.products = Windows, Windows AD


[AD - Login Failure due to Password Expired]
[AD - Login Failure Due To Password Expired]
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Alert name change will have some consequences. FYA @hardikhdholariya

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I'll change alert name on docs.

disabled = 1
enableSched = 1
alert.track = 1
Expand All @@ -4665,7 +4665,7 @@ display.page.search.tab = statistics
display.page.search.mode = fast
request.ui_dispatch_app = cyences_app_for_splunk
request.ui_dispatch_view = search
search = `cs_wineventlog_security` EventCode IN (4768, 4771) Result_Code="0x17" \
search = `cs_wineventlog_security` EventCode IN (4768, 4771) (Result_Code="0x17" OR Failure_Code="0x17") \
| dedup ComputerName Account_Name \
| `cs_human_readable_time_format(_time, event_time)` \
| table event_time ComputerName Account_Name src_ip user_type status \
Expand All @@ -4674,7 +4674,40 @@ search = `cs_wineventlog_security` EventCode IN (4768, 4771) Result_Code="0x17"
| `cs_ad_login_failure_due_to_password_expire_filter`
action.cyences_notable_event_action = 1
action.cyences_notable_event_action.param.filter_macro_name = cs_ad_login_failure_due_to_password_expire_filter
action.cyences_notable_event_action.contributing_events = `cs_wineventlog_security` EventCode IN (4768, 4771) Result_Code="0x17"
action.cyences_notable_event_action.contributing_events = `cs_wineventlog_security` EventCode IN (4768, 4771) (Result_Code="0x17" OR Failure_Code="0x17")
action.cyences_send_email_action = 1
action.cyences_notable_event_action.products = Windows, Windows AD

[AD - Login Failure Due To Credential Revoked]
disabled = 1
enableSched = 1
alert.track = 1
alert.severity = 4
alert.suppress = 0
counttype = number of events
quantity = 0
relation = greater than
cron_schedule = 55 * * * *
description = This alert will be triggered if login failure due to credential revoked. \
\
Data Collection - Splunk_TA_windows - WinEventLog://Security stanza
dispatch.earliest_time = -62m@m
dispatch.latest_time = -2m@m
display.general.type = statistics
display.page.search.tab = statistics
display.page.search.mode = fast
request.ui_dispatch_app = cyences_app_for_splunk
request.ui_dispatch_view = search
search = `cs_wineventlog_security` EventCode IN (4768, 4771) (Result_Code="0x12" OR Failure_Code="0x12") \
| dedup ComputerName Account_Name \
| `cs_human_readable_time_format(_time, event_time)` \
| table event_time ComputerName Account_Name src_ip user_type status \
| `cs_user_privilege_mapping(Account_Name)` \
| eval cyences_severity = if(is_privileged_user=="Yes", "high", "medium") \
| `cs_ad_login_failure_due_to_credential_revoked_filter`
action.cyences_notable_event_action = 1
action.cyences_notable_event_action.param.filter_macro_name = cs_ad_login_failure_due_to_credential_revoked_filter
action.cyences_notable_event_action.contributing_events = `cs_wineventlog_security` EventCode IN (4768, 4771) (Result_Code="0x12" OR Failure_Code="0x12")
action.cyences_send_email_action = 1
action.cyences_notable_event_action.products = Windows, Windows AD

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