msg.exe

File Path: C:\WINDOWS\system32\msg.exe
Description: Message Utility

Hashes

Type	Hash
MD5	`27D2C294A45ACA08E9048A43AC8519F0`
SHA1	`D1549E6F1B159E7C7D050E1148CBEBBEE0D1E377`
SHA256	`81782E9F3F0816D1E242FCCBEB1D3589C6D2825D92D964CCA8D1E1C48E973F68`
SHA384	`E3A151D51EBD5806268113C058DF36A5A729B8AD6B4FF3116BAA7F2E38896E1905F6EFB7F3923FA2F8F28C965FF10848`
SHA512	`F857A80E55679260268892718E5B9F1AB459F51DAA5691B7F31EBAEC1CE4E509D4BBBAF3DBD773B309574D92F21EB9F8BCDDA9E47645A856893AE5BDB9326688`
SSDEEP	`768:P4znx3bPBIz9nyzhfY1DXD19ibFz7fmnVZb4:P4zx37BIz9nyl03IzE4`
IMP	`CD3B5466F111A79E4AC06248B98E0B04`
PESHA1	`C78BF547ECA88D3A1BD2E68DA6A8C1CA48D8896F`
PE256	`80A5A1F5710E9E53A6607456F7553AFE8D5E2348EB5327281FDB0345EC6A1207`

Runtime Data

Usage (stdout):

Send a message to a user.

MSG {username | sessionname | sessionid | @filename | *}
    [/SERVER:servername] [/TIME:seconds] [/V] [/W] [message]

  username            Identifies the specified username.
  sessionname         The name of the session.
  sessionid           The ID of the session.
  @filename           Identifies a file containing a list of usernames,
                      sessionnames, and sessionids to send the message to.
  *                   Send message to all sessions on specified server.
  /SERVER:servername  server to contact (default is current).
  /TIME:seconds       Time delay to wait for receiver to acknowledge msg.
  /V                  Display information about actions being performed.
  /W                  Wait for response from user, useful with /V.
  message             Message to send.  If none specified, prompts for it
                      or reads from stdin.

Usage (stderr):

Invalid parameter(s)
Send a message to a user.

MSG {username | sessionname | sessionid | @filename | *}
    [/SERVER:servername] [/TIME:seconds] [/V] [/W] [message]

  username            Identifies the specified username.
  sessionname         The name of the session.
  sessionid           The ID of the session.
  @filename           Identifies a file containing a list of usernames,
                      sessionnames, and sessionids to send the message to.
  *                   Send message to all sessions on specified server.
  /SERVER:servername  server to contact (default is current).
  /TIME:seconds       Time delay to wait for receiver to acknowledge msg.
  /V                  Display information about actions being performed.
  /W                  Wait for response from user, useful with /V.
  message             Message to send.  If none specified, prompts for it
                      or reads from stdin.

Child Processes:

conhost.exe

Open Handles:

Path	Type
(R-D) C:\Windows\System32\en-US\msg.exe.mui	File
(RW-) C:\Windows\System32	File
\BaseNamedObjects\C:ProgramDataMicrosoftWindowsCaches*{6AF0698E-D558-4F6E-9B3C-3716689AF493}.2.ver0x0000000000000001.db	Section
\BaseNamedObjects\C:ProgramDataMicrosoftWindowsCaches*{DDF571F2-BE98-426D-8288-1A9A39C3FDA2}.2.ver0x0000000000000001.db	Section
\BaseNamedObjects\C:ProgramDataMicrosoftWindowsCaches*cversions.2.ro	Section
\Sessions\2\BaseNamedObjects\NLS_CodePage_1252_3_2_0_0	Section
\Sessions\2\BaseNamedObjects\NLS_CodePage_437_3_2_0_0	Section

Loaded Modules:

Path
C:\WINDOWS\System32\KERNEL32.DLL
C:\WINDOWS\System32\KERNELBASE.dll
C:\WINDOWS\system32\msg.exe
C:\WINDOWS\SYSTEM32\ntdll.dll

Signature

Status: Signature verified.
Serial: 33000002ED2C45E4C145CF48440000000002ED
Thumbprint: 312860D2047EB81F8F58C29FF19ECDB4C634CF6A
Issuer: CN=Microsoft Windows Production PCA 2011, O=Microsoft Corporation, L=Redmond, S=Washington, C=US
Subject: CN=Microsoft Windows, O=Microsoft Corporation, L=Redmond, S=Washington, C=US

File Metadata

Original Filename: msg.exe.mui
Product Name: Microsoft Windows Operating System
Company Name: Microsoft Corporation
File Version: 10.0.22000.1 (WinBuild.160101.0800)
Product Version: 10.0.22000.1
Language: English (United States)
Legal Copyright: Microsoft Corporation. All rights reserved.
Machine Type: 64-bit

File Scan

VirusTotal Detections: 0/72
VirusTotal Link: https://www.virustotal.com/gui/file/81782e9f3f0816d1e242fccbeb1d3589c6d2825d92d964cca8d1e1c48e973f68/detection

Additional Info*

*The information below is copied from MicrosoftDocs, which is maintained by Microsoft. Available under CC BY 4.0 license.

msg

Applies to: Windows Server 2022, Windows Server 2019, Windows Server 2016, Windows Server 2012 R2, Windows Server 2012

Sends a message to a user on a Remote Desktop Session Host server.

[!NOTE] You must have Message special access permission to send a message.

Syntax

msg {<username> | <sessionname> | <sessionID>| @<filename> | *} [/server:<servername>] [/time:<seconds>] [/v] [/w] [<message>]

Parameters

Parameter	Description
`<username>`	Specifies the name of the user that you want to receive the message. If you don’t specify a user or a session, this command displays an error message. When specifying a session, it must be an active one.
`<sessionname>`	Specifies the name of the session that you want to receive the message. If you don’t specify a user or a session, this command displays an error message. When specifying a session, it must be an active one.
`<sessionID>`	Specifies the numeric ID of the session whose user you want to receive a message.
`@<filename>`	Identifies a file containing a list of user names, session names, and session IDs that you want to receive the message.
*	Sends the message to all user names on the system.
/server:`<servername>`	Specifies the Remote Desktop Session Host server whose session or user you want to receive the message. If unspecified, /server uses the server to which you are currently logged on.
/time:`<seconds>`	Specifies the amount of time that the message you sent is displayed on the user’s screen. After the time limit is reached, the message disappears. If no time limit is set, the message remains on the user’s screen until the user sees the message and clicks OK.
/v	Displays information about the actions being performed.
/w	Waits for an acknowledgment from the user that the message has been received. Use this parameter with `/time:<seconds>` to avoid a possible long delay if the user does not immediately respond. Using this parameter with /v is also helpful.
`<message>`	Specifies the text of the message that you want to send. If no message is specified, you will be prompted to enter a message. To send a message that is contained in a file, type the less than (<) symbol followed by the file name.
/?	Displays help at the command prompt.

Examples

To send a message entitled, Let’s meet at 1PM today to all sessions for User1, type:

msg User1 Let's meet at 1PM today

To send the same message to session modeM02, type:

msg modem02 Let's meet at 1PM today

To send the message to all sessions contained in the file userlist, type:

msg @userlist Let's meet at 1PM today

To send the message to all users who are logged on, type:

msg * Let's meet at 1PM today

To send the message to all users, with an acknowledgment time-out (for example, 10 seconds), type:

msg * /time:10 Let's meet at 1PM today

Additional References

Command-Line Syntax Key