| Threat Alias | Number of Incidents |
| Adware-SaveNow [McAfee] | 1,258 |
| Adware.Savenow [Symantec] | 1,240 |
| Adware:Win32/WhenU.A [Microsoft] | 1,052 |
| not-a-virus:WebToolbar.Win32.WhenU.a [Kaspersky Lab] | 573 |
| not-a-virus:AdWare.Win32.SaveNow.bo [Ikarus] | 545 |
| not-a-virus:AdTool.Win32.WhenU.i [Ikarus] | 365 |
| not-a-virus:WebToolbar.Win32.WhenU.y [Kaspersky Lab] | 221 |
| not-a-virus:AdTool.Win32.WhenU.i [Kaspersky Lab] | 185 |
| not-a-virus:AdTool.Win32.WhenU.a [Kaspersky Lab] | 178 |
| AdWare.Win32.WhenU [Ikarus] | 147 |
| not-a-virus:WebToolbar.Win32.WhenU.z [Kaspersky Lab] | 144 |
| Generic.dx [McAfee] | 61 |
| not-a-virus:AdWare.Win32.SaveNow.z [Kaspersky Lab] | 56 |
| not-a-virus:AdWare.Win32.SaveNow.z [Ikarus] | 49 |
| not-a-virus:WebToolbar.Win32.WhenU.i [Kaspersky Lab] | 24 |
| Adware-xplus [McAfee] | 18 |
| not-a-virus:.WebToolbar [Ikarus] | 13 |
| Adware.WhenU!sd5 [PC Tools] | 12 |
| Virus.Win32.AdWare [Ikarus] | 12 |
| not-a-virus:AdWare.Win32.SaveNow.ar [Kaspersky Lab] | 10 |
| not-a-virus:AdWare.Win32.SaveNow.ay [Kaspersky Lab] | 7 |
| not-a-virus:AdWare.Win32.SaveNow.m [Kaspersky Lab] | 7 |
| not-a-virus:AdTool.Win32.WhenU.g [Kaspersky Lab] | 5 |
| not-a-virus:AdWare.Win32.SaveNow.ag [Kaspersky Lab] | 5 |
| not-a-virus:AdWare.Win32.SaveNow.c [Kaspersky Lab] | 5 |
| not-a-virus:AdWare.Win32.SaveNow.bc [Kaspersky Lab] | 4 |
| not-a-virus:AdWare.Win32.SaveNow.bi [Kaspersky Lab] | 4 |
| not-a-virus:AdWare.Win32.SaveNow.e [Kaspersky Lab] | 4 |
| Generic PUP.g [McAfee] | 3 |
| SoftwareBundler:Win32/KaZaA [Microsoft] | 3 |
| Adware-WhenUSearch [McAfee] | 2 |
| not-a-virus:AdWare.WhenU [Ikarus] | 2 |
| not-a-virus:AdWare.Win32.SaveNow [Ikarus] | 2 |
| not-a-virus:AdWare.Win32.SaveNow.af [Kaspersky Lab] | 2 |
| not-a-virus:AdWare.Win32.SaveNow.av [Kaspersky Lab] | 2 |
| not-a-virus:AdWare.Win32.SaveNow.aw [Kaspersky Lab] | 2 |
| not-a-virus:AdWare.Win32.SaveNow.az [Kaspersky Lab] | 2 |
| not-a-virus:AdWare.Win32.SaveNow.bl [Kaspersky Lab] | 2 |
| not-a-virus:AdWare.Win32.SaveNow.by [Kaspersky Lab] | 2 |
| not-a-virus:AdWare.Win32.SaveNow.w [Kaspersky Lab] | 2 |
| PE_VIRUT.XV [Trend Micro] | 2 |
| W32/Virut.f [McAfee] | 2 |
| Win-Trojan/Xema.variant [AhnLab] | 2 |
| Adware:Win32/WhenU.D [Microsoft] | 1 |
| Adware:Win32/WhenU.gen [Microsoft] | 1 |
| Adware-RadLight [McAfee] | 1 |
| Generic PUP.a [McAfee] | 1 |
| not-a-virus:AdTool.Win32.WhenU.f [Kaspersky Lab] | 1 |
| not-a-virus:AdTool.Win32.WhenU.j [Kaspersky Lab] | 1 |
| not-a-virus:AdTool.Win32.WhenU.r [Kaspersky Lab] | 1 |
| not-a-virus:AdTool.Win32.WhenU.t [Kaspersky Lab] | 1 |
| not-a-virus:AdWare.Win32.SaveNow [Kaspersky Lab] | 1 |
| not-a-virus:AdWare.Win32.SaveNow.aa [Kaspersky Lab] | 1 |
| not-a-virus:AdWare.Win32.SaveNow.al [Kaspersky Lab] | 1 |
| not-a-virus:AdWare.Win32.SaveNow.au [Kaspersky Lab] | 1 |
| not-a-virus:AdWare.Win32.SaveNow.bh [Kaspersky Lab] | 1 |
| not-a-virus:AdWare.Win32.SaveNow.bt [Kaspersky Lab] | 1 |
| not-a-virus:AdWare.Win32.SaveNow.bv [Kaspersky Lab] | 1 |
| not-a-virus:AdWare.Win32.SaveNow.ca [Kaspersky Lab] | 1 |
| not-a-virus:AdWare.Win32.SaveNow.cb [Kaspersky Lab] | 1 |
| not-a-virus:AdWare.Win32.SaveNow.h [Kaspersky Lab] | 1 |
| not-a-virus:AdWare.Win32.SaveNow.o [Kaspersky Lab] | 1 |
| not-a-virus:AdWare.Win32.SaveNow.q [Kaspersky Lab] | 1 |