Rule to collect events for invalid ssh login
An invalid ssh request has been detected in the system log files.
User was not granted access to the system remotely. This monitor allows system administrators to track 'ssh' usage.
The description of the alert and/or the output data item contains information on the event encountered. If the activity appears suspicious, please check the associated event details and any other events that happened around the time of this event.
Target | Microsoft.ACS.AIX.6.1.ACSEndPoint |
Category | EventCollection |
Enabled | False |
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.AIX.6.1.Ssh.Invalid" Enabled="false" Target="Microsoft.ACS.AIX.6.1.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/syslog.log</LogFile>
<!-- [TYPE] AIX SSH False -->
<!-- [INPUT] Oct 30 14:03:27 scxaix1 auth|security:info sshd[376892]: Failed password for invalid user xxx from 172.30.182.212 port 41285 ssh2 -->
<!-- [EXPECTED] date="Oct 30 14:03:27"; hostname="scxaix1"; process="sshd"; processId="376892"; user="xxx"; clientHost="172.30.182.212" -->
<RegExpFilter>sshd\[[[:digit:]]+\]:[[:space:]]*Failed password for invalid user [^[:space:]]+ from [^[:space:]]+</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+).+ (?'process'sshd)\[(?'processId'\d+)\]:\s*Failed password for invalid user (?'user'\S+)+ from (?'clientHost'\S+)</RegExp>
<EventType>0</EventType>
<EventId>27003</EventId>
</WriteAction>
</WriteActions>
</Rule>