Windows Process

[A]
alg.exe - application layer gateway service



[C]
csrss.exe - microsoft client/server runtime server subsystem or w32.netsky.ab@mm、w32.webus、win32.ladex.a


[L]
lsass.exe - local安全等級作者ityservice

[U]
updater.exe - AGOBOT-OT worm or else


[W]
wdfmgr.exe - windows driver foundation manager
winlogon.exe - microsoft windows logon process [%systemroot%/system32] or w32.netsky.d@mm

[Z]
ZCfgSvc.exe - Wireless Zero Configuration




Reference :
菜鳥必看:Windows xp進程全解（續篇） - 珊珊的電腦密技 - Yahoo!奇摩部落格