Windows proecsses starting with u

Path	Process	Description	Type	Required?	Threat?
	urdvxc.exe	Known trojan file.
	uhh.exe	Known backdoor file.
	uvypkvaz.exe	Known malware file.
	uninst.bat	Known trojan file.
	uaservice.exe	Known trojan file.
	umtcdtw.sys	Known trojan and backdoor file.
	uesiuqcr.exe	Known trojan and related malware file.
	updater.exe	iRiver MP3 player, Moodlogic, Winfixer, ZoneAlarm, and various other programs use this filename for the file responsible for checking for updates or performing other tasks associated with the related program. There are also many malware associated infections that also use this common name.
	unins000.exe	Inno Uninstallation service used with many different programs and should only be seen in the task manager while uninstalling a software program. Although can be a legitimate file there are many other malware infections that use this same file name.
	userinit.exe	Microsoft Windows logon manager process that should be located in the C:\Windows\System32 directory.
	usnsvc.exe	Microsoft MSN Messenger USN journal reader file.
	ufseagnt.exe	Trend Micro server security agent file.
	unsecapp.exe	Microsoft Windows Windows Management Instrumentation (WMI) asynchronous callback file.
	udefrag.exe	DiskTrix Ultimate defragmenter file.
	ulcdrsvr.exe	Ulead DVD workshop file.
	uclauncherservice.ex...	Lenovo Thinkpad laptop ThinkVantage service file.
	ubbmonitor.exe	ArcSoft digital imaging file.
	uaservice7.exe	SecuROM virtual disc user access file.
	updaterui.exe	McAfee Enterprise 7.0.
	uphclean.exe	Microsoft Windows cleanup service file.
	usbdlm.exe	USB drive Letter Manager process. Used to assign USB drives to a specific drive letter.
	upeksvr.exe	Finterprint reader service file.
	updreg.exe	Creative register reminder file.
	uclauncher.exe	Lenovo ThinkVantage systray file.
	uacclient.exe	Security Stronghold Microsoft Windows Vista UAC replacement file.
	uacreplace.exe	Security Stronghold Microsoft Windows Vista UAC replacement file.
	uibho.dll	Symantec Norton Confidential DLL file.
	ustorsrv.exe	Imation Disk Manager USB service file.
	udaterui.exe	McAfee common user interface framework file.
	unlodctr.exe	Microsoft Windows file that should be located in the C:\Windows\System32 directory.
	unwise.exe	Microsoft Windows Wise un-installer used with various different programs file.
	upnpcont.exe	Microsoft Windows file that should be located in the C:\Windows\System32 directory.
	ups.exe	Microsoft Windows file that should be located in the C:\Windows\System32 directory.
	user.exe	Microsoft Windows file that should be located in the C:\Windows\System32 directory.
	usrmlnka.exe	Microsoft Windows file that should be located in the C:\Windows\System32 directory.
	usrprbda.exe	Microsoft Windows file that should be located in the C:\Windows\System32 directory.
	usrshuta.exe	Microsoft Windows file that should be located in the C:\Windows\System32 directory.
	utilman.exe	Microsoft Windows file that should be located in the C:\Windows\System32 directory.
	uwdf.exe	Microsoft Windows file that should be located in the C:\Windows\System32 directory.
	utorrent.exe	uTorrent BitTorrent client file.
	upnpframework.exe	Sony VAIO media video server service file.
	ucls.exe	Sony VAIO media content collection service file.
	unlockerassistant.ex...	Cedrick Collomb file unlocker assistant file.
	upwords.cab	Microsoft Instant Messenger Zoneupwords game CAB file.
	unifish3.exe	Rollercoaster Tycoon game file.
	unins000.exe	Inno Uninstallation service used with many different programs and should only be seen in the task manager while uninstalling a software program. Although can be a legitimate file there are many other malware infections that use this same file name.
	unlockerhook.dll	Unlocker file unlock DLL file.
	update.exe	Microsoft Windows update process that should be loading from the C:\Windows directory. This file is also a common file name used with other programs to update their products.
	unrealtournament.exe	Unreal Tournament game file.
	updater.exe	iRiver MP3 player, Moodlogic, Winfixer, ZoneAlarm, and various other programs use this filename for the file responsible for checking for updates or performing other tasks associated with the related program. There are also many malware associated infections that also use this common name.
	umxcfg.exe	Computer Associates eTrust firewall file.
	umxfwhlp.exe	Computer Associates eTrust firewall file.
	umxpol.exe	Computer Associates eTrust firewall file.
	umxagent.exe	Computer Associates eTrust firewall file.
	hp.exe	Unknown - Click here to open Google search for this process.
	uhanfo.exe	Known keylogger and trojan file.
	uilibres.dll	WebEX application sharing DLL file.
	urlmon.dll	Microsoft OLE DLL file.
	upwords.cab57176.cab	MSN Messenger Zone upwords CAB file.
	ultramon.exe	Realtime Soft Ultramon utility that enables a user to use multiple displays file.
	ultramontaskbar.exe	Realtime Soft Ultramon systray process that enables a user to use multiple displays file.
	ufnavi.exe	Trend Micro Internet Security file.
	updatecenterservice....	Nvidia system update service file.
	unicows.dll	Microsoft Windows unicode support DLL file.
	usbprint.sys	Microsoft USB printer driver system driver file.
	usbccgp.sys	Microsoft USB generic printer driver system driver file.
	usbohci.sys	Microsoft Windows OCHI USB driver file.
	updspapi.dll	Microsoft servicing setup API DLL file.
	url.dll	Microsoft Internet Explorer shortcut shell DLL file.
	user32.dll	Microsoft Windows User API DLL file.
	unregmp2.exe	Microsoft Windows Media Player registry updater file.
	uxtheme.dll	Microsoft Windows UxTheme DLL file.
	blocker.dll	Unknown - Click here to open Google search for this process.
	usbser.sys	Microsoft Windows USB modem driver system driver file.
	usbaapl.sys	Apple USB driver system driver file.
	uscanm.exe	Netgear Wireless USB file.
	ufupdui.exe	Trend Micro Internet security file.
	usbsermpt.sys	Microsoft Windows USB modem driver system driver file.
	uninstall_activex.ex...	Uninstallation of Flash ActiveX utility file.
	usbhub20.sys	Microsoft default USB 2.0 hub driver.
	ui0detect.exe	Microsoft Windows interactive detection service file.
	upssrv.exe	Power Panel Plus utility to save applications in the event of a power outage file.
	upsio.exe	Power Panel Plus utility to save applications in the event of a power outage file.
	ultrashim.cab	Adobe Flash CAB file.
	usbstor.sys	Microsoft mass storage driver that should be located in the C:\Windows\system32\drivers directory.
	uiusys.sys	Conexant setup driver that should be located in the C:\Windows\system32\drivers directory.
	usbccid.sys	Microsoft USB CCID driver system driver file.
	usbehci.sys	Microsoft USB EHCI driver system driver file.
	usbhub.sys	Microsoft USB hub driver system driver file.
	usbuhci.sys	Microsoft USB miniport driver system driver file.
	updatechecker.exe	FileHippo file update checker file.
	uninst~1.dll	Uninstall utility DLL file.
	uinstaller.exe	Universal uninstaller file.
	updatemonitor.exe	IBM Lenovo rescue and recovery update monitor file.
	uirepair.dll	SuperAntiSpyware DLL file.
	updateservice.exe	SPAMfighter update service file.
	unrar3.dll	RAR un-compress DLL file.
	unacev2.dll	ACE un-compress DLL file.
	usbaaplrc.dll	Apple USB mobile devices DLL file.
	usbser_lowerfltj.sys	Nokia USB phone connectivity driver system driver file.
	usbser_lowerflt.sys	Nokia USB phone connectivity driver system driver file.
	usbscan.sys	USB scanner driver system driver file.
	uxtuneup.dll	TuneUp utilities DLL file.
	uiucu.exe	Universal device install application used with various installation programs such as software isntalled with Conexant Systems.
	unlockercom.dll	Unlocker to unlock files currently in use DLL file.
	uagp35.sys	Microsoft Windows AGP v3.5 driver that should be located in the C:\windows\system32\drivers directory.
	uliagpkx.sys	Microsoft Windows AGP v3.0 driver for K8/9 processors that should be located in the C:\windows\system32\drivers directory.
	umbus.sys	Microsoft Windows user-mode bus enumerator driver that should be located in the C:\windows\system32\drivers directory.
	ultramonutility.sys	UltraMon utility system driver file.
	update.sys	Microsoft Windows update driver system driver file.
	usbaudio.sys	Microsoft Windows USB audio driver system driver file.
	uns.exe	Intel Active Management Technology file.
	uninst16.exe	InstallShield uninstaller file.
	uninstfl.exe	Macromedia Flash uninstaller file.