R0, R1, R2, R3 Internet Explorer Start/Search pages URLs
F0, F1, F2,F3 Auto loading programs
N1, N2, N3, N4 Netscape/Mozilla Start/Search pages URLs
O1 Hosts file redirection
O2 Browser Helper Objects
O3 Internet Explorer toolbars
O4 Auto loading programs from Registry
O5 IE Options icon not visible in Control Panel
O6 IE Options access restricted by Administrator
O7 Regedit access restricted by Administrator
O8 Extra items in the IE right-click menu
O9 Extra buttons on main IE button toolbar, or extra items in IE 'Tools' menu
O10 Winsock hijacker
O11 Extra group in IE 'Advanced Options' window
O12 IE plugins
O13 IE Default Prefix hijack
O14 'Reset Web Settings' hijack
O15 Unwanted site in Trusted Zone
O16 ActiveX Objects (aka Downloaded Program Files)
O17 Lop.com/Domain Hijackers
O18 Extra protocols and protocol hijackers
O19 User style sheet hijack
O20 AppInit_DLLs Registry value Autorun
O21 ShellServiceObjectDelayLoad
O22 SharedTaskScheduler
O23 Windows XP/NT/2000 Services
O24 Windows Active Desktop Components
