OnStage is a software usually installed without your knowledge with the download of freeware. In fact some sites use the method of repackaging. This is an operation that is to redo the module software installation by adding download options. These options allow to add other software as for example toolbars browser, or potentially unwanted software. The addition of these new programs can decrease the performance of the system but also slow or redirect internet surfing. As a general rule, should focus on the author’s official site to download your software.
Identified : 06/03/2015.


– It belongs to a family of PUP (Potentially Unwanted Program).
– A polluteware is a software that pollutes storage and/or the Base of registers.
– Vendor : PUP.Optional


– It is installed as a BHO (Browser Helper Object) of internet browser (O2),
– It installs as a process launched at startup of the system (RP),
– It installs as a service to be launched each time the system (O23),(SS/SR),
– It installs as a program (O42),
– It creates to many registry keys ‘Software’,
– It creates additional folders (O43),
– It moved to the Windows prefetcher folder (O45),


O2 – BHO: On Stage – {9771c444-42b0-4e23-a7fb-ff707123ab30} . (…) — C:\Program Files\On Stage\Extensions\9771c444-42b0-4e23-a7fb-ff707123ab30.dll
O23 – Service: Service Mgr OnStage (Service Mgr OnStage) . (…) – C:\ProgramData\2988696b-294c-4054-b34f-e97ca58a10e8\plugincontainer.exe
O23 – Service: Update Mgr OnStage (Update Mgr OnStage) . (…) – C:\Program Files\Common Files\2988696b-294c-4054-b34f-e97ca58a10e8\updater.exe
O42 – Logiciel: On Stage – (.On Stage.) [HKLM] — On Stage
O43 – CFD: 04/06/2015 – 00:43:09 – [] —-D C:\Program Files\On Stage
SR – | Auto 03/06/2015 651024 | (Service Mgr OnStage) . (…) – C:\ProgramData\2988696b-294c-4054-b34f-e97ca58a10e8\plugincontainer.exe
SR – | Auto 03/06/2015 578832 | (Update Mgr OnStage) . (…) – C:\Program Files\Common Files\2988696b-294c-4054-b34f-e97ca58a10e8\updater.exe
C:\Program Files\On Stage
HKLM\Software\Microsoft\Windows\CurrentVersion\Uninstall\On Stage
HKLM\SYSTEM\CurrentControlSet\Services\Update Mgr OnStage
HKLM\SYSTEM\CurrentControlSet\Services\Service Mgr OnStage


PUP.Optional.OnStage.A [ Malwarebytes Antimalware ]


– Remove software in Windows Configuration Panel,
Remove with ZHPcleaner
Diagnose with ZHPDiag