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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.

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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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