| Threat Alias | Number of Incidents |
| Gen.Packed [Ikarus] | 1,882 |
| Mal/EncPk-KP [Sophos] | 1,874 |
| TrojanClicker:Win32/Hatigh.C [Microsoft] | 1,462 |
| Win-Trojan/Agent.21504.NB [AhnLab] | 960 |
| Generic.dx!fmw [McAfee] | 900 |
| Generic.dx!fml [McAfee] | 729 |
| Mal/EncPk-IF [Sophos] | 645 |
| Trojan.Win32.Ertfor [Ikarus] | 493 |
| Trojan:Win32/Ertfor.B [Microsoft] | 406 |
| TrojanDownloader:Win32/FakeRean [Microsoft] | 281 |
| TROJ_FAKEALE.SMB [Trend Micro] | 262 |
| Trojan-Downloader.Win32.FakeRean [Ikarus] | 237 |
| Mal/TibsPk-A, Mal/TibsPk-D [Sophos] | 219 |
| Mal/Generic-A [Sophos] | 216 |
| Mal/EncPk-IV [Sophos] | 198 |
| Trojan:Win32/Ertfor.A [Microsoft] | 184 |
| Win-Trojan/Xema.variant [AhnLab] | 179 |
| FakeAlert-XPSecCenter [McAfee] | 139 |
| Trojan-Downloader.Win32.FraudLoad [Ikarus] | 126 |
| Generic FakeAlert.d!gen [McAfee] | 123 |
| QHosts-126 [McAfee] | 118 |
| Generic Downloader.x!bhm [McAfee] | 100 |
| Trojan-Downloader.Win32.FraudLoad.wsia [Kaspersky Lab] | 100 |
| Trojan:Win32/Alureon.BH [Microsoft] | 96 |
| Trojan-Downloader.Win32.Renos [Ikarus] | 93 |
| Mal/Ertfor-A [Sophos] | 82 |
| FakeAlert-DA [McAfee] | 65 |
| Trojan.Win32.FraudPack.rcj [Kaspersky Lab] | 65 |
| Generic.dx!fes [McAfee] | 64 |
| Generic.dx!fgb [McAfee] | 64 |
| Troj/AgtJPP-Gen, Mal/TibsPk-A [Sophos] | 64 |
| Trojan-Downloader.Win32.FraudLoad.fkv [Kaspersky Lab] | 63 |
| Generic Dropper.ke [McAfee] | 58 |
| Packed.Win32.Krap.ad [Kaspersky Lab] | 56 |
| Trojan-Downloader.Win32.Wzhyk.dg [Kaspersky Lab] | 56 |
| Trojan-Dropper.Agent [Ikarus] | 51 |
| Trojan.Win32.Alureon [Ikarus] | 50 |
| Win-Trojan/Zpack.24576.J [AhnLab] | 49 |
| Generic FakeAlert!bd [McAfee] | 46 |
| Trojan.Generic [Ikarus] | 36 |
| Generic.dx!sz [McAfee] | 35 |
| Troj/AgtJPP-Gen, Mal/EncPk-IF [Sophos] | 34 |
| Trojan:Win32/Alureon.BK [Microsoft] | 34 |
| HeurEngine.MaliciousPacker [PC Tools] | 33 |
| Generic.dx!bht [McAfee] | 32 |
| Trojan.FakeAv.em [PC Tools] | 32 |
| Trojan-Downloader.Win32.Agent.ckkp [Kaspersky Lab] | 32 |
| Win-Trojan/Downlader.15001 [AhnLab] | 32 |
| Trojan-Downloader.Win32.Wzhyk.ec [Kaspersky Lab] | 28 |
| TrojanDownloader:Win32/Renos [Microsoft] | 27 |
| Win-Trojan/Agent.15001.F [AhnLab] | 27 |
| Trojan:Win32/FakeRean [Microsoft] | 26 |
| Trojan-Clicker.Win32.Vesloruki [Ikarus] | 25 |
| Win-Trojan/CryptRedol.20480 [AhnLab] | 25 |
| Win-Trojan/Downloader.15000.BL [AhnLab] | 25 |
| Trojan-Clicker.Win32.Klik [Ikarus] | 23 |
| Mal/EncPk-IV, Mal/EncPk-IF [Sophos] | 22 |
| PWS:Win32/Zbot.gen!R [Microsoft] | 18 |
| TrojanClicker:Win32/Klik [Microsoft] | 18 |
| Trojan-Downloader.Win32.FraudLoad.fft [Kaspersky Lab] | 18 |
| FakeAlert-CM [McAfee] | 17 |
| Mal/EncPk-KP, Mal/EncPk-IF [Sophos] | 17 |
| Trojan.Win32.Tdss.alpt [Kaspersky Lab] | 17 |
| Trojan.Win32.Agent.cxts [Kaspersky Lab] | 16 |
| Win-Trojan/Ertfor.15000.H [AhnLab] | 16 |
| Win-Trojan/Spambot.11264 [AhnLab] | 16 |
| Adclicker-HB [McAfee] | 15 |
| Trojan.Win32.Wantvi [Ikarus] | 15 |
| Virus.Win32.Ertfor [Ikarus] | 15 |
| Win32/IRCBot.worm.variant [AhnLab] | 15 |
| Packed.Win32.Tdss.x [Kaspersky Lab] | 14 |
| Trojan-Dropper [Ikarus] | 13 |
| Trojan-Dropper.Win32.FrauDrop.hh [Kaspersky Lab] | 11 |
| FakeAlert-FH [McAfee] | 10 |
| Generic.dx!cju [McAfee] | 10 |
| Mal/Behav-314, Mal/Fakecor-B, Mal/EncPk-IF [Sophos] | 10 |
| Trojan-Downloader.Win32.Agent.clni [Kaspersky Lab] | 10 |
| Win-Trojan/Ertfor.15000.I [AhnLab] | 10 |
| Win-Trojan/Fakeav.Gen [AhnLab] | 10 |
| Generic Downloader.x!bhf [McAfee] | 9 |
| Generic FakeAlert.d.gen [McAfee] | 9 |
| Generic.dx!ffd [McAfee] | 9 |
| Generic.dx!ffh [McAfee] | 9 |
| Hoax.Win32.Renos [Ikarus] | 9 |
| Hoax.Win32.Renos.vchc [Kaspersky Lab] | 9 |
| Trojan.Win32.Agent.cwlb [Kaspersky Lab] | 9 |
| Trojan-Downloader.Win32.Agent.cpoj [Kaspersky Lab] | 9 |
| Win-Trojan/Antiav.189791 [AhnLab] | 9 |
| Win-Trojan/Xema.15000 [AhnLab] | 9 |
| FakeAlert-IX [McAfee] | 8 |
| Packed.Win32.Krap.x [Kaspersky Lab] | 8 |
| PWS.Win32 [Ikarus] | 8 |
| PWS:Win32/Zbot.J [Microsoft] | 8 |
| Trojan.Win32.Agent.cyek [Kaspersky Lab] | 8 |
| Trojan-Dropper.Win32.Agent.avsd [Kaspersky Lab] | 8 |
| Trojan-Spy.Win32.Zbot [Ikarus] | 8 |
| W32/Ertfor.gen [McAfee] | 8 |
| Packed.Win32.Krap.t [Kaspersky Lab] | 7 |
| Trojan.Win32.FakeAV [Ikarus] | 7 |
| Trojan-Downloader.Win32.FraudLoad.wcva [Kaspersky Lab] | 7 |