Edit

Bad-Password-Time attribute

  • Article

The last time and date that an attempt to log on to this account was made with a password that is not valid. This value is stored as a large integer that represents the number of 100-nanosecond intervals since January 1, 1601 (UTC). A value of zero means that the last time a incorrect password was used is unknown.

Entry Value
CN Bad-Password-Time
Ldap-Display-Name badPasswordTime
Size 8 bytes
Update Privilege This value is set by the system.
Update Frequency Each time the user enters a bad password.
Attribute-Id 1.2.840.113556.1.4.49
System-Id-Guid bf96792d-0de6-11d0-a285-00aa003049e2
Syntax Interval

Implementations

Windows 2000 Server

Entry Value
Link-Id -
MAPI-Id -
System-Only False
Is-Single-Valued True
Is Indexed False
In Global Catalog False
NT-Security-Descriptor O:BAG:BAD:S:
Range-Lower -
Range-Upper -
Search-Flags 0x00000000
System-Flags 0x00000011
Classes used in User

Windows Server 2003

Entry Value
Link-Id -
MAPI-Id -
System-Only False
Is-Single-Valued True
Is Indexed False
In Global Catalog False
NT-Security-Descriptor O:BAG:BAD:S:
Range-Lower -
Range-Upper -
Search-Flags 0x00000000
System-Flags 0x00000011
Classes used in User

ADAM

Entry Value
Link-Id -
MAPI-Id -
System-Only True
Is-Single-Valued True
Is Indexed False
In Global Catalog False
NT-Security-Descriptor O:BAG:BAD:S:
Range-Lower -
Range-Upper -
Search-Flags 0x00000000
System-Flags 0x00000011
Classes used in ms-DS-Bindable-Object

Windows Server 2003 R2

Entry Value
Link-Id -
MAPI-Id -
System-Only False
Is-Single-Valued True
Is Indexed False
In Global Catalog False
NT-Security-Descriptor O:BAG:BAD:S:
Range-Lower -
Range-Upper -
Search-Flags 0x00000000
System-Flags 0x00000011
Classes used in User

Windows Server 2008

Entry Value
Link-Id -
MAPI-Id -
System-Only False
Is-Single-Valued True
Is Indexed False
In Global Catalog False
NT-Security-Descriptor O:BAG:BAD:S:
Range-Lower -
Range-Upper -
Search-Flags 0x00000000
System-Flags 0x00000011
Classes used in User

Windows Server 2008 R2

Entry Value
Link-Id -
MAPI-Id -
System-Only False
Is-Single-Valued True
Is Indexed False
In Global Catalog False
NT-Security-Descriptor O:BAG:BAD:S:
Range-Lower -
Range-Upper -
Search-Flags 0x00000000
System-Flags 0x00000011
Classes used in User

Windows Server 2012

Entry Value
Link-Id -
MAPI-Id -
System-Only False
Is-Single-Valued True
Is Indexed False
In Global Catalog False
NT-Security-Descriptor O:BAG:BAD:S:
Range-Lower -
Range-Upper -
Search-Flags 0x00000000
System-Flags 0x00000011
Classes used in User

Remarks

The high part of this large integer corresponds to the dwHighDateTime member of the FILETIME structure and the low part corresponds to the dwLowDateTime member of the FILETIME structure.

This attribute is not replicated and is maintained separately on each domain controller in the domain. To get an accurate value for the user's last bad password time in the domain, each domain controller in the domain must be queried. The largest value that is obtained represents the true bad password time.