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Added alert for the login failure due to password expire #569

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merged 2 commits into from
Jun 4, 2024
Merged

Added alert for the login failure due to password expire #569

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54a4e54
Added alert for the login failure due to password expire
hardikhdholariya May 31, 2024
d1c8425
mapped result_code with error_code
hardikhdholariya Jun 3, 2024
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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": "coalesce(error_code,Error_Code, \"unknown\")"
"expression": "if((EventCode=4768 OR EventCode=4771), Result_Code, coalesce(error_code,Error_Code, \"unknown\"))"
}
],
"constraints": [
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11 changes: 7 additions & 4 deletions cyences_app_for_splunk/default/macros.conf
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Expand Up @@ -745,6 +745,9 @@ definition = 10
[cs_ad_bulk_user_creation_deletion_filter]
definition = search *

[cs_ad_login_failure_due_to_password_expire_filter]
definition = search *

[cs_windows_host_missing_update_filter]
definition = search *
iseval = 0
Expand Down Expand Up @@ -1292,14 +1295,14 @@ definition = Authentication.app=*
iseval = 0

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

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

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34 changes: 34 additions & 0 deletions cyences_app_for_splunk/default/savedsearches.conf
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Expand Up @@ -4642,6 +4642,40 @@ action.cyences_send_email_action = 1
action.cyences_notable_event_action.products = Windows, Windows AD


[AD - Login Failure due to Password Expired]
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 password expiration. \
\
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="0x17" \
| 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_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_send_email_action = 1
action.cyences_notable_event_action.products = Windows, Windows AD



# ============
# Ransomware
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