用于收集用户删除事件的规则
在系统日志文件中检测到成功的 userdel 命令。
已从系统中删除用户。此监视器允许系统管理员跟踪帐户/组的创建和删除。
警报和/或输出数据项的描述包含有关遇到的事件的信息。如果活动显得可疑,请检查关联的事件详细信息以及此事件时间附近发生的任何其他事件。
Target | Microsoft.ACS.Linux.RHEL.6.ACSEndPoint |
Category | EventCollection |
Enabled | True |
Alert Generate | False |
Remotable | True |
ID | Module Type | TypeId | RunAs |
---|---|---|---|
EventDS | DataSource | Microsoft.Unix.SCXLog.Privileged.Datasource | Default |
WA | WriteAction | Microsoft.ACS.Unix.SecureEventLogWriter | Default |
<Rule ID="Microsoft.ACS.Linux.RHEL.6.Deleting.User" Enabled="true" Target="Microsoft.ACS.Linux.RHEL.6.ACSEndPoint" Remotable="true">
<Category>EventCollection</Category>
<DataSources>
<DataSource ID="EventDS" TypeID="Unix!Microsoft.Unix.SCXLog.Privileged.Datasource">
<Host>$Target/Host/Property[Type="Unix!Microsoft.Unix.Computer"]/NetworkName$</Host>
<LogFile>/var/log/secure</LogFile>
<!-- [TYPE] Redhat6 UserDelete True -->
<!-- [INPUT] Oct 5 08:03:07 scxcrd-rhel6-01 userdel[20949]: delete user 'tempuser' -->
<!-- [EXPECTED] date="Oct 5 08:03:07"; hostname="scxcrd-rhel6-01"; process="userdel"; processId="20949"; clientUser="tempuser" -->
<RegExpFilter>\s+userdel\[[[:digit:]]+\]: delete user '\S+'</RegExpFilter>
</DataSource>
</DataSources>
<WriteActions>
<WriteAction ID="WA" TypeID="ACS.Unix!Microsoft.ACS.Unix.SecureEventLogWriter">
<RegExp>(?'date'\S+\s+\d+\s+\d+:\d+:\d+)\s+(?:\S+:)?(?'hostname'\S+)\s+(?'process'userdel)\[(?'processId'\d+)\]: delete user '(?'clientUser'\S+)'</RegExp>
<EventType>1</EventType>
<EventId>27005</EventId>
<BackrefOverrides>sessionName="User removed"</BackrefOverrides>
</WriteAction>
</WriteActions>
</Rule>