| Threat Alias | Number of Incidents |
| Packed.Win32.Krap.i [Kaspersky Lab] | 21 |
| Spammer [Ikarus] | 18 |
| Trojan Horse [Symantec] | 15 |
| W32.Virut.CF [Symantec] | 12 |
| Win-Trojan/Spammer.31744 [AhnLab] | 12 |
| W32/Scribble-B [Sophos] | 10 |
| Spammer:Win32/Tedroo.gen!A [Microsoft] | 9 |
| Virus.Win32.Virut.ce [Kaspersky Lab] | 9 |
| Virus:Win32/Virut.BM [Microsoft] | 9 |
| Packed.Win32.Krap [Ikarus] | 8 |
| Trojan.Win32.Waledac [Ikarus] | 8 |
| TrojanDownloader:Win32/Bredolab.B [Microsoft] | 8 |
| Mal/WaledPak-E [Sophos] | 7 |
| Mal/Generic-A [Sophos] | 6 |
| Spammer:Win32/Tedroo.I [Microsoft] | 5 |
| Win-Trojan/Krap.25601 [AhnLab] | 4 |
| Mal/WaledPak-D, Mal/WaledPak-B [Sophos] | 3 |
| Win32/Virut.F [AhnLab] | 3 |
| Email-Worm.Win32.Small.ah [Kaspersky Lab] | 2 |
| Mal/WaledPak-C [Sophos] | 2 |
| Mal/WaledPak-D [Sophos] | 2 |
| Spammer:Win32/Tedroo.A [Microsoft] | 2 |
| Trojan-Downloader.Win32.Bredolab [Ikarus] | 2 |
| Virus:Win32/Virut.gen!E [Microsoft] | 2 |
| W32.IRCBot [Symantec] | 2 |
| W32.Waledac [Symantec] | 2 |
| Backdoor.IRCBot!sd6 [PC Tools] | 1 |
| Backdoor.Trojan [Symantec] | 1 |
| Backdoor.Win32.Zdoogu.af [Kaspersky Lab] | 1 |
| Email-Worm.Joleee [PC Tools] | 1 |
| Email-Worm.Win32.Iksmas.ts [Kaspersky Lab] | 1 |
| Email-Worm.Win32.Joleee.lc [Kaspersky Lab] | 1 |
| Email-Worm.Win32.Small [Ikarus] | 1 |
| Generic.dx [McAfee] | 1 |
| Mal/WaledPak-A [Sophos] | 1 |
| Mal/WaledPak-D, Mal/TibsPk-A [Sophos] | 1 |
| Mal/WaledPak-D, Mal/WaledPak-A [Sophos] | 1 |
| PE_VIRUT.D [Trend Micro] | 1 |
| Troj/Agent-JEQ [Sophos] | 1 |
| TrojanDownloader:Win32/Obitel.gen!A [Microsoft] | 1 |
| TrojanSpy:Win32/Bebloh.A [Microsoft] | 1 |
| TrojanSpy:Win32/Festeal.B [Microsoft] | 1 |
| Virus.Win32.Virut.n [Kaspersky Lab] | 1 |
| Virus:Win32/Virut.AK [Microsoft] | 1 |
| W32.Virut.B [Symantec] | 1 |
| W32/Scribble-A [Sophos] | 1 |
| W32/Vetor-A [Sophos] | 1 |
| Win32.Virut.Gen [PC Tools] | 1 |
| Win32/Iksmas.worm.444417.I [AhnLab] | 1 |
| Win32/Xema.worm.23553 [AhnLab] | 1 |
| Win-Trojan/Krap.11433445 [AhnLab] | 1 |
| Win-Trojan/Krap.71680 [AhnLab] | 1 |
| Win-Trojan/Tedroo.44032 [AhnLab] | 1 |