Name: Microsoft Update 32

File name: winnit.exe

Fix winnit.exe errors: If anyone is infected with this virus then i recommend him to please download a ccleaner and any good antivirus program like norton or small anti viruses likes Avira.First complete scan your system with avira/avast then run ccleaner then Registry cleaner, which is inbuilt function in ccleaner.

Also try this registry cleaner :
Uniblue Registry Booster


Command: winnit.exe

Description: Added by the W32/Rbot-AOM worm. This infection, when started, connects to an IRC server where it sits on a channel awaiting commands.

File Location: %System%

Startup Type: This startup entry is started automatically from a Run, RunOnce, RunServices, or RunServicesOnce entry in the registry.

HijackThis Category: O4 Entry

Note: %System% is a variable that refers to the Windows System folder. By default this is C:\Windows\System for Windows 95/98/ME, C:\Winnt\System32 for Windows NT/2000, or C:\Windows\System32 for Windows XP and Vista.