Short bio

PUP.Optional.JetMedia is Malwarebytes’ detection name for a potentially unwanted program (PUP) that behaves like adware and taregets Windows systems.


Users of affected machine may notice a service called NativeDesktopMediaService and a listing in the Installed Features and Programs with the same name.

service properties

properties of JetMedia service


installed JetMedia

listing for JetMedia in installed Programs and Features

Type and source of infection

PUP.Optional.JetMedia contacts remote servers to deliver geo-targeted advertisements. It uses both a service and a scheduled task to gain persistence.
PUP.Optional.JetMedia is usually installed by bundlers.

Scheduled task JetMedia

Scheduled Task JetMedia


Malwarebytes protects users from PUP.Optional.JetMedia by using real-time protection.

block PUP.Optional.JetMedia

Malwarebytes blocks PUP.Optional.JetMedia


Malwarebytes can detect and remove PUP.Optional.JetMedia without further user interaction.

  1. Please download Malwarebytes to your desktop.
  2. Double-click mb3-setup-consumer-{version}.exe and follow the prompts to install the program.
  3. Then click Finish.
  4. Once the program has fully updated, select Scan Now on the Dashboard. Or select the Threat Scan from the Scan menu.
  5. If another update of the definitions is available, it will be implemented before the rest of the scanning procedure.
  6. When the scan is complete, make sure that all Threats are selected, and click Remove Selected.
  7. Restart your computer when prompted to do so.

Malwarebytes removal log

A Malwarebytes log of removal will look similar to this:


-Log Details-
Scan Date: 7/23/18
Scan Time: 10:00 AM
Log File: 6e35d5cf-8e4e-11e8-86cd-00ffdcc6fdfc.json
Administrator: Yes

-Software Information-
Components Version: 1.0.374
Update Package Version: 1.0.6019
License: Premium

-System Information-
OS: Windows 7 Service Pack 1
CPU: x64
File System: NTFS
User: {computername}\{username}

-Scan Summary-
Scan Type: Threat Scan
Scan Initiated By: Manual
Result: Completed
Objects Scanned: 251248
Threats Detected: 14
Threats Quarantined: 14
Time Elapsed: 3 min, 33 sec

-Scan Options-
Memory: Enabled
Startup: Enabled
Filesystem: Enabled
Archives: Enabled
Rootkits: Enabled
Heuristics: Enabled
PUP: Detect
PUM: Detect

-Scan Details-
Process: 1
PUP.Optional.JetMedia, C:\Program Files\Jetmedia\NativeDesktopMediaService\desktop_media_service.exe, Quarantined, [5319], [506353],1.0.6019

Module: 1
PUP.Optional.JetMedia, C:\Program Files\Jetmedia\NativeDesktopMediaService\desktop_media_service.exe, Quarantined, [5319], [506353],1.0.6019

Registry Key: 4
PUP.Optional.JetMedia, HKLM\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\SCHEDULE\TASKCACHE\TREE\Checker64, Quarantined, [5319], [506353],1.0.6019
PUP.Optional.JetMedia, HKLM\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\SCHEDULE\TASKCACHE\TASKS\{01958EA3-6525-415C-9973-DD001445C31B}, Quarantined, [5319], [506353],1.0.6019
PUP.Optional.JetMedia, HKLM\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\SCHEDULE\TASKCACHE\PLAIN\{01958EA3-6525-415C-9973-DD001445C31B}, Quarantined, [5319], [506353],1.0.6019
PUP.Optional.JetMedia, HKLM\SYSTEM\CURRENTCONTROLSET\SERVICES\NativeDesktopMediaService, Quarantined, [5319], [506353],1.0.6019

Registry Value: 3
PUP.Optional.JetMedia, HKLM\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\SCHEDULE\TASKCACHE\TASKS\{01958EA3-6525-415C-9973-DD001445C31B}|PATH, Quarantined, [5319], [506358],1.0.6019

Registry Data: 0
(No malicious items detected)

Data Stream: 0
(No malicious items detected)

Folder: 2
PUP.Optional.JetMedia, C:\Program Files\Jetmedia\NativeDesktopMediaService, Quarantined, [5319], [506353],1.0.6019
PUP.Optional.JetMedia, C:\PROGRAM FILES\JETMEDIA, Quarantined, [5319], [506353],1.0.6019

File: 3
PUP.Optional.JetMedia, C:\WINDOWS\SYSTEM32\TASKS\Checker64, Quarantined, [5319], [506353],1.0.6019
PUP.Optional.JetMedia, C:\PROGRAM FILES\JETMEDIA\NATIVEDESKTOPMEDIASERVICE\checker.exe, Quarantined, [5319], [506353],1.0.6019
PUP.Optional.JetMedia, C:\Program Files\Jetmedia\NativeDesktopMediaService\desktop_media_service.exe, Quarantined, [5319], [506353],1.0.6019

Physical Sector: 0
(No malicious items detected)

WMI: 0
(No malicious items detected)


Add an exclusion

Should users wish to keep this program and exclude it from being detected in future scans, they can add the program to the exclusions list. Here’s how to do it.

The Exclusions tab includes a list of items to be excluded from scans. The items may include files, folders, websites, or applications that connect to the Internet, as well as previously detected exploits.

To access the exclusions in Malwarebytes:

  • Click on the Settings tab in the left pane.
  • Click on the Exclusions tab.
  • Click the Add Exclusion button.
  • Select the exclusion type Exclude a File or Folder and use the Browse button to select the main folder for the software that you wish to keep.
  • Repeat this for any secondary folder(s) that belong to the software.
  • If you want to allow the program to connect to the Internet, for example to fetch updates, add an exclusion of the type Exclude an application that Connects to the Internet and use the Browse button to select the file you wish to grant access.


You may see these entries in FRST logs:

() C:\Program Files\Jetmedia\NativeDesktopMediaService\desktop_media_service.exe
R2 NativeDesktopMediaService; C:\Program Files\Jetmedia\NativeDesktopMediaService\desktop_media_service.exe
() C:\Users\{username}\AppData\Roaming\Jetmedia

NativeDesktopMediaService (HKLM\...\{7AE7827C-57AB-4A9E-A598-8D8142D28EB3}) (Version: 2.1.5 - Jetmedia)
Task: {2EC83B2D-069B-4112-B4F0-F8A750C143C4} - System32\Tasks\Checker64 => C:\Program Files\Jetmedia\NativeDesktopMediaService\checker.exe [2018-01-31] ()

Select your language