Created
July 9, 2021 11:01
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uses sysinternals handle.exe to find/list the current open handles
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function Find-OpenHandle([string]$Filter = '') { | |
# handle.exe returns all the open files grouped by process as: | |
# ------------------------------------------------------------------------------ | |
# System pid: 4 \<unable to open process> | |
# 720: Section \Win32kCrossSessionGlobals | |
# ------------------------------------------------------------------------------ | |
# svchost.exe pid: 1208 NT AUTHORITY\SYSTEM | |
# 198: File (R-D) C:\Windows\System32\en-US\svchost.exe.mui | |
# the first line has the following fields: | |
# svchost.exe pid: 1208 NT AUTHORITY\SYSTEM | |
# ^^^^^^^^^^^ ^^^^ ^^^^^^^^^^^^^^^^^^^ | |
# process name | process user | |
# process id | |
# the other lines have the following fields: | |
# 198: File (R-D) C:\Windows\System32\en-US\svchost.exe.mui | |
# ^^^ ^^^^ ^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | |
# handle type | path | |
# attributes | |
( | |
( | |
handle.exe -nobanner $Filter ` | |
| ForEach-Object {$_.Trim()} ` | |
| Where-Object {$_} ` | |
| Select-Object -Skip 1 | |
) -join "`n" -split '-{10,}\n' | |
) ` | |
| ForEach-Object { | |
$processLine, $handlesLines = $_ -split "`n" | |
if ($processLine -notmatch '^(?<processName>.+?) pid: (?<processId>\d+) (?<processUser>.+)$') { | |
throw "unable to parse process line $processLine" | |
} | |
$processName = $Matches['processName'] | |
$processId = $Matches['processId'] | |
$processUser = $Matches['processUser'] | |
@($handlesLines) | Where-Object {$_} | ForEach-Object { | |
if ($_ -notmatch '^(?<handle>.+?): (?<type>.+?)(\s+\((?<attributes>.+?)\))?\s+(?<path>.+)$') { | |
throw "unable to parse handle line $_" | |
} | |
New-Object PSObject -Property @{ | |
ProcessName = $processName | |
ProcessId = $processId | |
ProcessUser = $processUser | |
Handle = $Matches['handle'] | |
Type = $Matches['type'] | |
Attributes = $Matches['attributes'] | |
Path = $Matches['path'] | |
} | |
} | |
} | |
} |
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