├── .gitignore
├── Documentation
└── Images
│ ├── IPv4PortScan.png
│ └── IPv4PortScan_CPUusage.png
├── LICENSE
├── README.md
└── Scripts
├── Create-PortListFromWeb.ps1
├── IPv4PortScan.ps1
└── Resources
└── ports.txt
/.gitignore:
--------------------------------------------------------------------------------
1 | Documentation/Thumbs.db
--------------------------------------------------------------------------------
/Documentation/Images/IPv4PortScan.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/BornToBeRoot/PowerShell_IPv4PortScanner/10c8023d5d24fb28795646c0950891f9b895bb3b/Documentation/Images/IPv4PortScan.png
--------------------------------------------------------------------------------
/Documentation/Images/IPv4PortScan_CPUusage.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/BornToBeRoot/PowerShell_IPv4PortScanner/10c8023d5d24fb28795646c0950891f9b895bb3b/Documentation/Images/IPv4PortScan_CPUusage.png
--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
1 | GNU GENERAL PUBLIC LICENSE
2 | Version 2, June 1991
3 |
4 | Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
5 | 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
6 | Everyone is permitted to copy and distribute verbatim copies
7 | of this license document, but changing it is not allowed.
8 |
9 | Preamble
10 |
11 | The licenses for most software are designed to take away your
12 | freedom to share and change it. By contrast, the GNU General Public
13 | License is intended to guarantee your freedom to share and change free
14 | software--to make sure the software is free for all its users. This
15 | General Public License applies to most of the Free Software
16 | Foundation's software and to any other program whose authors commit to
17 | using it. (Some other Free Software Foundation software is covered by
18 | the GNU Lesser General Public License instead.) You can apply it to
19 | your programs, too.
20 |
21 | When we speak of free software, we are referring to freedom, not
22 | price. Our General Public Licenses are designed to make sure that you
23 | have the freedom to distribute copies of free software (and charge for
24 | this service if you wish), that you receive source code or can get it
25 | if you want it, that you can change the software or use pieces of it
26 | in new free programs; and that you know you can do these things.
27 |
28 | To protect your rights, we need to make restrictions that forbid
29 | anyone to deny you these rights or to ask you to surrender the rights.
30 | These restrictions translate to certain responsibilities for you if you
31 | distribute copies of the software, or if you modify it.
32 |
33 | For example, if you distribute copies of such a program, whether
34 | gratis or for a fee, you must give the recipients all the rights that
35 | you have. You must make sure that they, too, receive or can get the
36 | source code. And you must show them these terms so they know their
37 | rights.
38 |
39 | We protect your rights with two steps: (1) copyright the software, and
40 | (2) offer you this license which gives you legal permission to copy,
41 | distribute and/or modify the software.
42 |
43 | Also, for each author's protection and ours, we want to make certain
44 | that everyone understands that there is no warranty for this free
45 | software. If the software is modified by someone else and passed on, we
46 | want its recipients to know that what they have is not the original, so
47 | that any problems introduced by others will not reflect on the original
48 | authors' reputations.
49 |
50 | Finally, any free program is threatened constantly by software
51 | patents. We wish to avoid the danger that redistributors of a free
52 | program will individually obtain patent licenses, in effect making the
53 | program proprietary. To prevent this, we have made it clear that any
54 | patent must be licensed for everyone's free use or not licensed at all.
55 |
56 | The precise terms and conditions for copying, distribution and
57 | modification follow.
58 |
59 | GNU GENERAL PUBLIC LICENSE
60 | TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
61 |
62 | 0. This License applies to any program or other work which contains
63 | a notice placed by the copyright holder saying it may be distributed
64 | under the terms of this General Public License. The "Program", below,
65 | refers to any such program or work, and a "work based on the Program"
66 | means either the Program or any derivative work under copyright law:
67 | that is to say, a work containing the Program or a portion of it,
68 | either verbatim or with modifications and/or translated into another
69 | language. (Hereinafter, translation is included without limitation in
70 | the term "modification".) Each licensee is addressed as "you".
71 |
72 | Activities other than copying, distribution and modification are not
73 | covered by this License; they are outside its scope. The act of
74 | running the Program is not restricted, and the output from the Program
75 | is covered only if its contents constitute a work based on the
76 | Program (independent of having been made by running the Program).
77 | Whether that is true depends on what the Program does.
78 |
79 | 1. You may copy and distribute verbatim copies of the Program's
80 | source code as you receive it, in any medium, provided that you
81 | conspicuously and appropriately publish on each copy an appropriate
82 | copyright notice and disclaimer of warranty; keep intact all the
83 | notices that refer to this License and to the absence of any warranty;
84 | and give any other recipients of the Program a copy of this License
85 | along with the Program.
86 |
87 | You may charge a fee for the physical act of transferring a copy, and
88 | you may at your option offer warranty protection in exchange for a fee.
89 |
90 | 2. You may modify your copy or copies of the Program or any portion
91 | of it, thus forming a work based on the Program, and copy and
92 | distribute such modifications or work under the terms of Section 1
93 | above, provided that you also meet all of these conditions:
94 |
95 | a) You must cause the modified files to carry prominent notices
96 | stating that you changed the files and the date of any change.
97 |
98 | b) You must cause any work that you distribute or publish, that in
99 | whole or in part contains or is derived from the Program or any
100 | part thereof, to be licensed as a whole at no charge to all third
101 | parties under the terms of this License.
102 |
103 | c) If the modified program normally reads commands interactively
104 | when run, you must cause it, when started running for such
105 | interactive use in the most ordinary way, to print or display an
106 | announcement including an appropriate copyright notice and a
107 | notice that there is no warranty (or else, saying that you provide
108 | a warranty) and that users may redistribute the program under
109 | these conditions, and telling the user how to view a copy of this
110 | License. (Exception: if the Program itself is interactive but
111 | does not normally print such an announcement, your work based on
112 | the Program is not required to print an announcement.)
113 |
114 | These requirements apply to the modified work as a whole. If
115 | identifiable sections of that work are not derived from the Program,
116 | and can be reasonably considered independent and separate works in
117 | themselves, then this License, and its terms, do not apply to those
118 | sections when you distribute them as separate works. But when you
119 | distribute the same sections as part of a whole which is a work based
120 | on the Program, the distribution of the whole must be on the terms of
121 | this License, whose permissions for other licensees extend to the
122 | entire whole, and thus to each and every part regardless of who wrote it.
123 |
124 | Thus, it is not the intent of this section to claim rights or contest
125 | your rights to work written entirely by you; rather, the intent is to
126 | exercise the right to control the distribution of derivative or
127 | collective works based on the Program.
128 |
129 | In addition, mere aggregation of another work not based on the Program
130 | with the Program (or with a work based on the Program) on a volume of
131 | a storage or distribution medium does not bring the other work under
132 | the scope of this License.
133 |
134 | 3. You may copy and distribute the Program (or a work based on it,
135 | under Section 2) in object code or executable form under the terms of
136 | Sections 1 and 2 above provided that you also do one of the following:
137 |
138 | a) Accompany it with the complete corresponding machine-readable
139 | source code, which must be distributed under the terms of Sections
140 | 1 and 2 above on a medium customarily used for software interchange; or,
141 |
142 | b) Accompany it with a written offer, valid for at least three
143 | years, to give any third party, for a charge no more than your
144 | cost of physically performing source distribution, a complete
145 | machine-readable copy of the corresponding source code, to be
146 | distributed under the terms of Sections 1 and 2 above on a medium
147 | customarily used for software interchange; or,
148 |
149 | c) Accompany it with the information you received as to the offer
150 | to distribute corresponding source code. (This alternative is
151 | allowed only for noncommercial distribution and only if you
152 | received the program in object code or executable form with such
153 | an offer, in accord with Subsection b above.)
154 |
155 | The source code for a work means the preferred form of the work for
156 | making modifications to it. For an executable work, complete source
157 | code means all the source code for all modules it contains, plus any
158 | associated interface definition files, plus the scripts used to
159 | control compilation and installation of the executable. However, as a
160 | special exception, the source code distributed need not include
161 | anything that is normally distributed (in either source or binary
162 | form) with the major components (compiler, kernel, and so on) of the
163 | operating system on which the executable runs, unless that component
164 | itself accompanies the executable.
165 |
166 | If distribution of executable or object code is made by offering
167 | access to copy from a designated place, then offering equivalent
168 | access to copy the source code from the same place counts as
169 | distribution of the source code, even though third parties are not
170 | compelled to copy the source along with the object code.
171 |
172 | 4. You may not copy, modify, sublicense, or distribute the Program
173 | except as expressly provided under this License. Any attempt
174 | otherwise to copy, modify, sublicense or distribute the Program is
175 | void, and will automatically terminate your rights under this License.
176 | However, parties who have received copies, or rights, from you under
177 | this License will not have their licenses terminated so long as such
178 | parties remain in full compliance.
179 |
180 | 5. You are not required to accept this License, since you have not
181 | signed it. However, nothing else grants you permission to modify or
182 | distribute the Program or its derivative works. These actions are
183 | prohibited by law if you do not accept this License. Therefore, by
184 | modifying or distributing the Program (or any work based on the
185 | Program), you indicate your acceptance of this License to do so, and
186 | all its terms and conditions for copying, distributing or modifying
187 | the Program or works based on it.
188 |
189 | 6. Each time you redistribute the Program (or any work based on the
190 | Program), the recipient automatically receives a license from the
191 | original licensor to copy, distribute or modify the Program subject to
192 | these terms and conditions. You may not impose any further
193 | restrictions on the recipients' exercise of the rights granted herein.
194 | You are not responsible for enforcing compliance by third parties to
195 | this License.
196 |
197 | 7. If, as a consequence of a court judgment or allegation of patent
198 | infringement or for any other reason (not limited to patent issues),
199 | conditions are imposed on you (whether by court order, agreement or
200 | otherwise) that contradict the conditions of this License, they do not
201 | excuse you from the conditions of this License. If you cannot
202 | distribute so as to satisfy simultaneously your obligations under this
203 | License and any other pertinent obligations, then as a consequence you
204 | may not distribute the Program at all. For example, if a patent
205 | license would not permit royalty-free redistribution of the Program by
206 | all those who receive copies directly or indirectly through you, then
207 | the only way you could satisfy both it and this License would be to
208 | refrain entirely from distribution of the Program.
209 |
210 | If any portion of this section is held invalid or unenforceable under
211 | any particular circumstance, the balance of the section is intended to
212 | apply and the section as a whole is intended to apply in other
213 | circumstances.
214 |
215 | It is not the purpose of this section to induce you to infringe any
216 | patents or other property right claims or to contest validity of any
217 | such claims; this section has the sole purpose of protecting the
218 | integrity of the free software distribution system, which is
219 | implemented by public license practices. Many people have made
220 | generous contributions to the wide range of software distributed
221 | through that system in reliance on consistent application of that
222 | system; it is up to the author/donor to decide if he or she is willing
223 | to distribute software through any other system and a licensee cannot
224 | impose that choice.
225 |
226 | This section is intended to make thoroughly clear what is believed to
227 | be a consequence of the rest of this License.
228 |
229 | 8. If the distribution and/or use of the Program is restricted in
230 | certain countries either by patents or by copyrighted interfaces, the
231 | original copyright holder who places the Program under this License
232 | may add an explicit geographical distribution limitation excluding
233 | those countries, so that distribution is permitted only in or among
234 | countries not thus excluded. In such case, this License incorporates
235 | the limitation as if written in the body of this License.
236 |
237 | 9. The Free Software Foundation may publish revised and/or new versions
238 | of the General Public License from time to time. Such new versions will
239 | be similar in spirit to the present version, but may differ in detail to
240 | address new problems or concerns.
241 |
242 | Each version is given a distinguishing version number. If the Program
243 | specifies a version number of this License which applies to it and "any
244 | later version", you have the option of following the terms and conditions
245 | either of that version or of any later version published by the Free
246 | Software Foundation. If the Program does not specify a version number of
247 | this License, you may choose any version ever published by the Free Software
248 | Foundation.
249 |
250 | 10. If you wish to incorporate parts of the Program into other free
251 | programs whose distribution conditions are different, write to the author
252 | to ask for permission. For software which is copyrighted by the Free
253 | Software Foundation, write to the Free Software Foundation; we sometimes
254 | make exceptions for this. Our decision will be guided by the two goals
255 | of preserving the free status of all derivatives of our free software and
256 | of promoting the sharing and reuse of software generally.
257 |
258 | NO WARRANTY
259 |
260 | 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
261 | FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
262 | OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
263 | PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
264 | OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
265 | MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
266 | TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
267 | PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
268 | REPAIR OR CORRECTION.
269 |
270 | 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
271 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
272 | REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
273 | INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
274 | OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
275 | TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
276 | YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
277 | PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
278 | POSSIBILITY OF SUCH DAMAGES.
279 |
280 | END OF TERMS AND CONDITIONS
281 |
282 | How to Apply These Terms to Your New Programs
283 |
284 | If you develop a new program, and you want it to be of the greatest
285 | possible use to the public, the best way to achieve this is to make it
286 | free software which everyone can redistribute and change under these terms.
287 |
288 | To do so, attach the following notices to the program. It is safest
289 | to attach them to the start of each source file to most effectively
290 | convey the exclusion of warranty; and each file should have at least
291 | the "copyright" line and a pointer to where the full notice is found.
292 |
293 | {description}
294 | Copyright (C) {year} {fullname}
295 |
296 | This program is free software; you can redistribute it and/or modify
297 | it under the terms of the GNU General Public License as published by
298 | the Free Software Foundation; either version 2 of the License, or
299 | (at your option) any later version.
300 |
301 | This program is distributed in the hope that it will be useful,
302 | but WITHOUT ANY WARRANTY; without even the implied warranty of
303 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
304 | GNU General Public License for more details.
305 |
306 | You should have received a copy of the GNU General Public License along
307 | with this program; if not, write to the Free Software Foundation, Inc.,
308 | 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
309 |
310 | Also add information on how to contact you by electronic and paper mail.
311 |
312 | If the program is interactive, make it output a short notice like this
313 | when it starts in an interactive mode:
314 |
315 | Gnomovision version 69, Copyright (C) year name of author
316 | Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
317 | This is free software, and you are welcome to redistribute it
318 | under certain conditions; type `show c' for details.
319 |
320 | The hypothetical commands `show w' and `show c' should show the appropriate
321 | parts of the General Public License. Of course, the commands you use may
322 | be called something other than `show w' and `show c'; they could even be
323 | mouse-clicks or menu items--whatever suits your program.
324 |
325 | You should also get your employer (if you work as a programmer) or your
326 | school, if any, to sign a "copyright disclaimer" for the program, if
327 | necessary. Here is a sample; alter the names:
328 |
329 | Yoyodyne, Inc., hereby disclaims all copyright interest in the program
330 | `Gnomovision' (which makes passes at compilers) written by James Hacker.
331 |
332 | {signature of Ty Coon}, 1 April 1989
333 | Ty Coon, President of Vice
334 |
335 | This General Public License does not permit incorporating your program into
336 | proprietary programs. If your program is a subroutine library, you may
337 | consider it more useful to permit linking proprietary applications with the
338 | library. If this is what you want to do, use the GNU Lesser General
339 | Public License instead of this License.
340 |
341 |
--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | # PowerShell | IPv4 port scanner
2 |
3 | Powerful asynchronus IPv4 port scanner for PowerShell.
4 |
5 | ## Description
6 |
7 | This powerful asynchronus IPv4 port scanner allows you to scan every port range you want (500 to 2600 would work). Only TCP ports are scanned.
8 |
9 | The result will contain the port number, protocol, service name, description and the status.
10 |
11 | 
12 |
13 | To reach the best possible performance, this script uses a [RunspacePool](https://msdn.microsoft.com/en-US/library/system.management.automation.runspaces.runspacepool(v=vs.85).aspx). As you can see in the following screenshot, the individual tasks are distributed across all cpu cores:
14 |
15 | 
16 |
17 | If you are looking for a module containing this script as function... you can find it [here](https://github.com/BornToBeRoot/PowerShell)!
18 |
19 | Maybe you're also interested in my asynchronus [IPv4 Network Scanner](https://github.com/BornToBeRoot/PowerShell_IPv4NetworkScanner).
20 |
21 | ## Syntax
22 |
23 | ```powershell
24 | .\IPv4PortScan.ps1 [-ComputerName] [[-StartPort] ] [[-EndPort] ] [[-Threads] ] [[-Force]] []
25 | ```
26 |
27 | ## Example
28 |
29 | ```powershell
30 | PS> .\IPv4PortScan.ps1 -ComputerName fritz.box -EndPort 500
31 |
32 | Port Protocol ServiceName ServiceDescription Status
33 | ---- -------- ----------- ------------------ ------
34 | 53 tcp domain Domain Name Server open
35 | 80 tcp http World Wide Web HTTP open
36 | ```
37 |
--------------------------------------------------------------------------------
/Scripts/Create-PortListFromWeb.ps1:
--------------------------------------------------------------------------------
1 | #[xml]$LatestPorts = Get-Content -Path "$PSScriptRoot\Service Name and Transport Protocol Port Number Registry.xml"
2 | [xml]$LatestPorts = (Invoke-WebRequest -Uri "https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xml").Content
3 |
4 | $Output = ""
5 |
6 | foreach($record in $LatestPorts.ChildNodes.record)
7 | {
8 | if([string]::IsNullOrEmpty($record.number) -or ([string]::IsNullOrEmpty($record.protocol)))
9 | {
10 | continue
11 | }
12 |
13 | $Description = ($record.description -replace '`n','') -replace '\s+',' '
14 |
15 | $Number = $record.number
16 |
17 | if($Number -like "*-*")
18 | {
19 | $NumberArr = $Number.Split('-')
20 |
21 | foreach($Number1 in $NumberArr[0]..$NumberArr[1])
22 | {
23 | $Output += "$Number1|$($record.protocol)|$($record.name)|$Description`n"
24 | }
25 | }
26 | else
27 | {
28 | $Output += "$Number|$($record.protocol)|$($record.name)|$Description`n"
29 | }
30 | }
31 |
32 | Out-File -InputObject $Output -FilePath "$PSScriptRoot\Resources\ports.txt"
--------------------------------------------------------------------------------
/Scripts/IPv4PortScan.ps1:
--------------------------------------------------------------------------------
1 | ###############################################################################################################
2 | # Language : PowerShell 4.0
3 | # Filename : IPv4PortScan.ps1
4 | # Autor : BornToBeRoot (https://github.com/BornToBeRoot)
5 | # Description : Powerful asynchronus IPv4 Port Scanner
6 | # Repository : https://github.com/BornToBeRoot/PowerShell_IPv4PortScanner
7 | ###############################################################################################################
8 |
9 | <#
10 | .SYNOPSIS
11 | Powerful asynchronus IPv4 Port Scanner
12 |
13 | .DESCRIPTION
14 | This powerful asynchronus IPv4 Port Scanner allows you to scan every Port-Range you want (500 to 2600 would work). Only TCP-Ports are scanned.
15 |
16 | The result will contain the Port number, Protocol, Service name, Description and the Status.
17 |
18 | .EXAMPLE
19 | .\IPv4PortScan.ps1 -ComputerName fritz.box -EndPort 500
20 |
21 | Port Protocol ServiceName ServiceDescription Status
22 | ---- -------- ----------- ------------------ ------
23 | 53 tcp domain Domain Name Server open
24 | 80 tcp http World Wide Web HTTP open
25 |
26 | .LINK
27 | https://github.com/BornToBeRoot/PowerShell_IPv4PortScanner/blob/master/README.md
28 | #>
29 |
30 | [CmdletBinding()]
31 | param(
32 | [Parameter(
33 | Position = 0,
34 | Mandatory = $true,
35 | HelpMessage = 'ComputerName or IPv4-Address of the device which you want to scan')]
36 | [String]$ComputerName,
37 |
38 | [Parameter(
39 | Position = 1,
40 | HelpMessage = 'First port which should be scanned (Default=1)')]
41 | [ValidateRange(1, 65535)]
42 | [Int32]$StartPort = 1,
43 |
44 | [Parameter(
45 | Position = 2,
46 | HelpMessage = 'Last port which should be scanned (Default=65535)')]
47 | [ValidateRange(1, 65535)]
48 | [ValidateScript({
49 | if ($_ -lt $StartPort) {
50 | throw "Invalid Port-Range!"
51 | }
52 | else {
53 | return $true
54 | }
55 | })]
56 | [Int32]$EndPort = 65535,
57 |
58 | [Parameter(
59 | Position = 3,
60 | HelpMessage = 'Maximum number of threads at the same time (Default=500)')]
61 | [Int32]$Threads = 500,
62 |
63 | [Parameter(
64 | Position = 4,
65 | HelpMessage = 'Execute script without user interaction')]
66 | [switch]$Force
67 | )
68 |
69 | Begin {
70 | Write-Verbose -Message "Script started at $(Get-Date)"
71 |
72 | $PortList_Path = "$PSScriptRoot\Resources\ports.txt"
73 | }
74 |
75 | Process {
76 | if (Test-Path -Path $PortList_Path -PathType Leaf) {
77 | $PortsHashTable = @{ }
78 |
79 | Write-Verbose -Message "Read ports.txt and fill hash table..."
80 |
81 | foreach ($Line in Get-Content -Path $PortList_Path) {
82 | if (-not([String]::IsNullOrEmpty($Line))) {
83 | try {
84 | $HashTableData = $Line.Split('|')
85 |
86 | if ($HashTableData[1] -eq "tcp") {
87 | $PortsHashTable.Add([int]$HashTableData[0], [String]::Format("{0}|{1}", $HashTableData[2], $HashTableData[3]))
88 | }
89 | }
90 | catch [System.ArgumentException] { } # Catch if port is already added to hash table
91 | }
92 | }
93 |
94 | $AssignServiceWithPort = $true
95 | }
96 | else {
97 | $AssignServiceWithPort = $false
98 |
99 | Write-Warning -Message "No port-file to assign service with port found! Execute the script ""Create-PortListFromWeb.ps1"" to download the latest version.. This warning doesn`t affect the scanning procedure."
100 | }
101 |
102 | # Check if host is reachable
103 | Write-Verbose -Message "Test if host is reachable..."
104 | if (-not(Test-Connection -ComputerName $ComputerName -Count 2 -Quiet)) {
105 | Write-Warning -Message "$ComputerName is not reachable!"
106 |
107 | if ($Force -eq $false) {
108 | $Title = "Continue"
109 | $Info = "Would you like to continue? (perhaps only ICMP is blocked)"
110 |
111 | $Options = [System.Management.Automation.Host.ChoiceDescription[]] @("&Yes", "&No")
112 | [int]$DefaultChoice = 0
113 | $Opt = $host.UI.PromptForChoice($Title , $Info, $Options, $DefaultChoice)
114 |
115 | switch ($Opt) {
116 | 1 {
117 | return
118 | }
119 | }
120 | }
121 | }
122 |
123 | $PortsToScan = ($EndPort - $StartPort)
124 |
125 | Write-Verbose -Message "Scanning range from $StartPort to $EndPort ($PortsToScan Ports)"
126 | Write-Verbose -Message "Running with max $Threads threads"
127 |
128 | # Check if ComputerName is already an IPv4-Address, if not... try to resolve it
129 | $IPv4Address = [String]::Empty
130 |
131 | if ([bool]($ComputerName -as [IPAddress])) {
132 | $IPv4Address = $ComputerName
133 | }
134 | else {
135 | # Get IP from Hostname (IPv4 only)
136 | try {
137 | $AddressList = @(([System.Net.Dns]::GetHostEntry($ComputerName)).AddressList)
138 |
139 | foreach ($Address in $AddressList) {
140 | if ($Address.AddressFamily -eq "InterNetwork") {
141 | $IPv4Address = $Address.IPAddressToString
142 | break
143 | }
144 | }
145 | }
146 | catch { } # Can't get IPAddressList
147 |
148 | if ([String]::IsNullOrEmpty($IPv4Address)) {
149 | throw "Could not get IPv4-Address for $ComputerName. (Try to enter an IPv4-Address instead of the Hostname)"
150 | }
151 | }
152 |
153 | # Scriptblock --> will run in runspaces (threads)...
154 | [System.Management.Automation.ScriptBlock]$ScriptBlock = {
155 | Param(
156 | $IPv4Address,
157 | $Port
158 | )
159 |
160 | try {
161 | $Socket = New-Object System.Net.Sockets.TcpClient($IPv4Address, $Port)
162 |
163 | if ($Socket.Connected) {
164 | $Status = "Open"
165 | $Socket.Close()
166 | }
167 | else {
168 | $Status = "Closed"
169 | }
170 | }
171 | catch {
172 | $Status = "Closed"
173 | }
174 |
175 | if ($Status -eq "Open") {
176 | [pscustomobject] @{
177 | Port = $Port
178 | Protocol = "tcp"
179 | Status = $Status
180 | }
181 | }
182 | }
183 |
184 | Write-Verbose -Message "Setting up RunspacePool..."
185 |
186 | # Create RunspacePool and Jobs
187 | $RunspacePool = [System.Management.Automation.Runspaces.RunspaceFactory]::CreateRunspacePool(1, $Threads, $Host)
188 | $RunspacePool.Open()
189 | [System.Collections.ArrayList]$Jobs = @()
190 |
191 | Write-Verbose -Message "Setting up Jobs..."
192 |
193 | #Set up job for each port...
194 | foreach ($Port in $StartPort..$EndPort) {
195 | $ScriptParams = @{
196 | IPv4Address = $IPv4Address
197 | Port = $Port
198 | }
199 |
200 | # Catch when trying to divide through zero
201 | try {
202 | $Progress_Percent = (($Port - $StartPort) / $PortsToScan) * 100
203 | }
204 | catch {
205 | $Progress_Percent = 100
206 | }
207 |
208 | Write-Progress -Activity "Setting up jobs..." -Id 1 -Status "Current Port: $Port" -PercentComplete ($Progress_Percent)
209 |
210 | # Create mew job
211 | $Job = [System.Management.Automation.PowerShell]::Create().AddScript($ScriptBlock).AddParameters($ScriptParams)
212 | $Job.RunspacePool = $RunspacePool
213 |
214 | $JobObj = [pscustomobject] @{
215 | RunNum = $Port - $StartPort
216 | Pipe = $Job
217 | Result = $Job.BeginInvoke()
218 | }
219 |
220 | # Add job to collection
221 | [void]$Jobs.Add($JobObj)
222 | }
223 |
224 | Write-Verbose -Message "Waiting for jobs to complete & starting to process results..."
225 |
226 | # Total jobs to calculate percent complete, because jobs are removed after they are processed
227 | $Jobs_Total = $Jobs.Count
228 |
229 | # Process results, while waiting for other jobs
230 | Do {
231 | # Get all jobs, which are completed
232 | $Jobs_ToProcess = $Jobs | Where-Object -FilterScript { $_.Result.IsCompleted }
233 |
234 | # If no jobs finished yet, wait 500 ms and try again
235 | if ($null -eq $Jobs_ToProcess) {
236 | Write-Verbose -Message "No jobs completed, wait 500ms..."
237 |
238 | Start-Sleep -Milliseconds 500
239 | continue
240 | }
241 |
242 | # Get jobs, which are not complete yet
243 | $Jobs_Remaining = ($Jobs | Where-Object -FilterScript { $_.Result.IsCompleted -eq $false }).Count
244 |
245 | # Catch when trying to divide through zero
246 | try {
247 | $Progress_Percent = 100 - (($Jobs_Remaining / $Jobs_Total) * 100)
248 | }
249 | catch {
250 | $Progress_Percent = 100
251 | }
252 |
253 | Write-Progress -Activity "Waiting for jobs to complete... ($($Threads - $($RunspacePool.GetAvailableRunspaces())) of $Threads threads running)" -Id 1 -PercentComplete $Progress_Percent -Status "$Jobs_Remaining remaining..."
254 |
255 | Write-Verbose -Message "Processing $(if($null -eq $Jobs_ToProcess.Count){"1"}else{$Jobs_ToProcess.Count}) job(s)..."
256 |
257 | # Processing completed jobs
258 | foreach ($Job in $Jobs_ToProcess) {
259 | # Get the result...
260 | $Job_Result = $Job.Pipe.EndInvoke($Job.Result)
261 | $Job.Pipe.Dispose()
262 |
263 | # Remove job from collection
264 | $Jobs.Remove($Job)
265 |
266 | # Check if result is null --> if not, return it
267 | if ($Job_Result.Status) {
268 | if ($AssignServiceWithPort) {
269 | $Service = [String]::Empty
270 |
271 | if ($PortsHashTable.Get_Item($Job_Result.Port)) {
272 | $Service = $PortsHashTable.Get_Item($Job_Result.Port).Split('|')
273 | }
274 | else {
275 | $Service = @("Unknown", "Unknown")
276 | }
277 |
278 | [pscustomobject] @{
279 | Port = $Job_Result.Port
280 | Protocol = $Job_Result.Protocol
281 | ServiceName = $Service[0]
282 | ServiceDescription = $Service[1]
283 | Status = $Job_Result.Status
284 | }
285 | }
286 | else {
287 | $Job_Result
288 | }
289 | }
290 | }
291 |
292 | } While ($Jobs.Count -gt 0)
293 |
294 | Write-Verbose -Message "Closing RunspacePool and free resources..."
295 |
296 | # Close the RunspacePool and free resources
297 | $RunspacePool.Close()
298 | $RunspacePool.Dispose()
299 |
300 | Write-Verbose -Message "Script finished at $(Get-Date)"
301 | }
302 |
303 | End {
304 |
305 | }
306 |
--------------------------------------------------------------------------------