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InformationalSplunk security contentTeoderick Contreras +2

Windows Disable Change Password Through Registry

The following analytic detects a suspicious registry modification that disables the Change Password feature on a Windows host. It identifies changes to the registry path…

Description

The following analytic detects a suspicious registry modification that disables the Change Password feature on a Windows host. It identifies changes to the registry path "*\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\System\\DisableChangePassword" with a value of "0x00000001". This activity is significant as it can prevent users from changing their passwords, a tactic often used by ransomware to maintain control over compromised systems. If confirmed malicious, this could hinder user response to an attack, allowing the attacker to persist and potentially escalate their access within the network.

Detection logic

Detection requirements

Platform
Windows

The rule states no platform. This is derived from the ATT&CK technique it maps to.

Log source category
sysmon_eventid_13

Known benign triggers

  • This windows feature may implemented by administrator to prevent normal user to change the password of a critical host or server, In this type of scenario filter is needed to minimized false positive.

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