Malicious programs detected on users’ computers

Top twenty malicious programs detected on users computers throughout the month of March.

Position	Change in position	Name	Number of infected computers
1	0	Net-Worm.Win32.Kido.ir	332833
2	0	Virus.Win32.Sality.aa	211229
3	0	Net-Worm.Win32.Kido.ih	186685
4	0	Net-Worm.Win32.Kido.iq	181825
5	0	Worm.Win32.FlyStudio.cu	121027
6	0	Trojan-Downloader.Win32.VB.eql	68580
7	New	Trojan.Win32.AutoRun.abj	66331
8	1	Virus.Win32.Virut.ce	61003
9	1	Packed.Win32.Krap.l	55823
10	-2	Worm.Win32.AutoIt.tc	55065
11	4	Worm.Win32.Mabezat.b	49521
12	-5	Exploit.JS.Aurora.a	43776
13	New	Packed.Win32.Krap.as	40912
14	New	Trojan.Win32.AutoRun.aay	40754
15	3	Trojan-Dropper.Win32.Flystud.yo	40190
16	-4	Virus.Win32.Induc.a	38683
17	-4	not-a-virus:AdWare.Win32.RK.aw	38547
18	New	Trojan.Win32.AutoRun.abd	37037
19	-5	not-a-virus:AdWare.Win32.Boran.z	36996
20	0	not-a-virus:AdWare.Win32.FunWeb.q	34177