powershell - Match the User Name against the Security EventLog -


i want take domain user , want check security event logs logon , print events match returns me null value: 

get-eventlog -log security -computer pc1 -instanceid 4624 -after(get-date).adddays(-2) | ? {   $_.message -match "account name:\s+qasimali\s" -and   $_.message -match 'logon type:\s+(2|10)\s" }

but generates no data output

read-host : name cannot null or empty.

whereas command runs , gives no error. want check whether command running fine or not.

the way have done in past follows ( thoroughly commented clarity) :

## set username input $userinput = "domainuser"  ## set date in past retrieve events $starttime = ((get-date).addminutes(-2))  ##set domain controller search on $computername = "dc1"  ## retrieve event 4624 dc eveng logs $logons = get-winevent -computername $computername -filterhashtable @{logname="security"; id="4624"; starttime=$starttime;endtime=(get-date)}  ## initialize variable store outputs in $eventoutput = @()  ## enumerate events retrieve usernames compare against user input foreach ($logon in $logons) {     ## convert event xml     $logonxml = [xml]$logon.toxml()      ## retrieve username xml object     $logonuser = (($logonxml.event.eventdata.data | select "#text")[5])."#text"      ## retrieve logon type xml object     $logontype = (($logonxml.event.eventdata.data | select "#text")[8])."#text"      ## check event username matches user input     if ($logonuser -match $userinput) {         ## check logontype correct         if ($logontype -eq 2 -or $logontype -eq 10) {             ## append event object event output             $eventoutput += $logon         }     } }  ## output resulting event output object $eventoutput

the resulting output can manipulated retrieve whatever details wish. find converting each object xml parse further values useful.

note : i've thrown memory, can restructured enable other queries if required. start , end times need changed extract information correct timespan.


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