Google Chronicle unknown experimental yara-l
account_tampering__suspicious_failed_logon_reasons
This method uses uncommon error codes on failed logons to determine suspicious activity and tampering with accounts that have been disabled or somehow restricted. License: https://github.com/Neo23x0/sigma/blob/master/LICENSE.Detection.Rules.md.
Detection Logic
rule account_tampering__suspicious_failed_logon_reasons {
meta:
author = "Florian Roth"
description = "This method uses uncommon error codes on failed logons to determine suspicious activity and tampering with accounts that have been disabled or somehow restricted. License: https://github.com/Neo23x0/sigma/blob/master/LICENSE.Detection.Rules.md."
reference = "https://tdm.socprime.com/tdm/info/O5OvzzX3zD8E"
version = "0.01"
created = "2021-03-09"
product = "windows"
service = "security"
mitre = "persistence, privilege_escalation, t1078"
events:
(($selection.metadata.product_event_type = "4625" or $selection.metadata.product_event_type = "4776") and ($selection.security_result.description = "0xC0000072" or $selection.security_result.description = "0xC000006F" or $selection.security_result.description = "0xC0000070" or $selection.security_result.description = "0xC0000413" or $selection.security_result.description = "0xC000018C"))
condition:
$selection
} Field Validations
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