Bueno, parece que estoy libre de virus. Muchas gracias. Te dejo el report del kaspersky a ver si queda alguna cosa por quitar. De todas formas he pasado el Ewido online tras este scan.

-------------------------------------------------------------------------------
KASPERSKY ONLINE SCANNER REPORT
Friday, December 15, 2006 10:31:14 AM
Operating System: Microsoft Windows XP Home Edition, Service Pack 1 (Build 2600)
Kaspersky Online Scanner version: 5.0.83.0
Kaspersky Anti-Virus database last update: 15/12/2006
Kaspersky Anti-Virus database records: 250876
-------------------------------------------------------------------------------

Scan Settings:
Scan using the following antivirus database: extended
Scan Archives: true
Scan Mail Bases: true

Scan Target - My Computer:
A:\
C:\
D:\
E:\
F:\
G:\
H:\
I:\

Scan Statistics:
Total number of scanned objects: 49798
Number of viruses found: 0
Number of infected objects: 0 / 0
Number of suspicious objects: 0
Duration of the scan process: 00:24:52

Infected Object Name / Virus Name / Last Action
C:\WINDOWS\system32\config\system.LOG Object is locked skipped
C:\WINDOWS\system32\config\software.LOG Object is locked skipped
C:\WINDOWS\system32\config\default.LOG Object is locked skipped
C:\WINDOWS\system32\config\SECURITY.LOG Object is locked skipped
C:\WINDOWS\system32\config\SAM.LOG Object is locked skipped
C:\WINDOWS\system32\config\systemprofile\Configura ción local\Historial\History.IE5\index.dat Object is locked skipped
C:\WINDOWS\system32\config\systemprofile\Configura ción local\Archivos temporales de Internet\Content.IE5\index.dat Object is locked skipped
C:\WINDOWS\system32\config\systemprofile\Cookies\i ndex.dat Object is locked skipped
C:\WINDOWS\system32\config\SysEvent.Evt Object is locked skipped
C:\WINDOWS\system32\config\AppEvent.Evt Object is locked skipped
C:\WINDOWS\system32\config\SecEvent.Evt Object is locked skipped
C:\WINDOWS\system32\config\SECURITY Object is locked skipped
C:\WINDOWS\system32\config\SOFTWARE Object is locked skipped
C:\WINDOWS\system32\config\SYSTEM Object is locked skipped
C:\WINDOWS\system32\config\DEFAULT Object is locked skipped
C:\WINDOWS\system32\config\SAM Object is locked skipped
C:\WINDOWS\system32\wbem\Repository\FS\OBJECTS.DAT A Object is locked skipped
C:\WINDOWS\system32\wbem\Repository\FS\INDEX.BTR Object is locked skipped
C:\WINDOWS\system32\h323log.txt Object is locked skipped
C:\WINDOWS\Debug\PASSWD.LOG Object is locked skipped
C:\WINDOWS\wiaservc.log Object is locked skipped
C:\WINDOWS\Sti_Trace.log Object is locked skipped
C:\WINDOWS\wiadebug.log Object is locked skipped
C:\WINDOWS\WindowsUpdate.log Object is locked skipped
C:\WINDOWS\SchedLgU.Txt Object is locked skipped
C:\WINDOWS\SoftwareDistribution\ReportingEvents.lo g Object is locked skipped
C:\WINDOWS\SoftwareDistribution\EventCache\{1B5E81 8B-12CE-49E1-82A8-2A5E503D2B7B}.bin Object is locked skipped
C:\Documents and Settings\All Users\Datos de programa\avg7\Log\emc.log Object is locked skipped
C:\Documents and Settings\All Users\Datos de programa\Grisoft\Avg7Data\avg7log.log.lck Object is locked skipped
C:\Documents and Settings\All Users\Datos de programa\Grisoft\Avg7Data\avg7log.log Object is locked skipped
C:\Documents and Settings\NetworkService\Configuración local\Datos de programa\Microsoft\Windows\UsrClass.dat.LOG Object is locked skipped
C:\Documents and Settings\NetworkService\Configuración local\Datos de programa\Microsoft\Windows\UsrClass.dat Object is locked skipped
C:\Documents and Settings\NetworkService\ntuser.dat.LOG Object is locked skipped
C:\Documents and Settings\NetworkService\NTUSER.DAT Object is locked skipped
C:\Documents and Settings\LocalService\Configuración local\Historial\History.IE5\index.dat Object is locked skipped
C:\Documents and Settings\LocalService\Configuración local\Archivos temporales de Internet\Content.IE5\index.dat Object is locked skipped
C:\Documents and Settings\LocalService\Configuración local\Datos de programa\Microsoft\Windows\UsrClass.dat.LOG Object is locked skipped
C:\Documents and Settings\LocalService\Configuración local\Datos de programa\Microsoft\Windows\UsrClass.dat Object is locked skipped
C:\Documents and Settings\LocalService\Cookies\index.dat Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCSBBDAB84E-46DC-4DC2-BB5E-202321612800.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCSDD930422-F9BC-412C-8E33-95D9C3F6DF3E.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS565DAA79-081B-49A0-A273-82D93C994C12.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCSFBE563B4-2428-4547-8BBF-4D31BB6C377C.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS69F362A3-E665-46E7-B3DA-1612E461F419.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCSBEF0E12C-40E0-4D65-B451-5173A216DC8C.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS793B3184-5F51-4430-B826-8738905CA683.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS6AB3725E-C162-43BA-8A4F-2A9012276E8E.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCSCF3F6999-22FC-4DA6-BBAF-D8AE247BEE8E.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCSD55E8DC1-F650-4692-BEFC-843EF89C2A29.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS767239D8-6393-40B4-B5CE-461334FC7D41.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS8551D680-7DF3-43C6-86CC-AF1CAE5BC0D5.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS7572A575-7D25-4318-9268-00B5877A4FAA.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS1B7B9751-7125-47B9-A927-F16149E75D34.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS720E642F-EB25-4217-89FB-E68DAFCBE26B.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS85E205D4-2730-459F-9925-F72A65AF84D6.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS80510007-F210-4F5A-900C-9BE1FC649134.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS54CEA744-B176-441D-878E-7538853FEF3F.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS4EAEB851-7300-43F8-85E8-E63F8BE7143C.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCSF36C8377-3ED8-46C0-8610-1BA6329C08A7.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS13FBE99D-2150-4550-BE9B-2750A528F450.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS153E7A6D-F469-468C-A8CA-5F01704C7F1F.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCSF3D8D73F-0C8B-4513-943F-B3ADA33C4C86.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS8252E211-8F56-4BBF-B538-31FCC84EA6E0.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCSDDFB8A45-7988-44B7-A860-68171AF9C71D.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCSB0F0E53E-7582-4500-85A6-ED57F2C004E2.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCSE6185902-5FF2-4246-81CE-36C71D90A687.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS13B186E4-9479-4B5A-B79F-416300B6B9B1.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS2F426700-FF5F-4DFD-AB78-30950B83DE5C.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS20A98F58-65A7-4C53-A361-F3BD61E244B3.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS8EA33B98-A687-4C37-9F0A-F57FF208A7DB.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS2C2C2333-6F6E-4CE2-8A8A-F81487F9DEAD.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCSFD977D08-3850-411A-9E16-F3E3A444DF96.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS02C3F9C7-B672-4B25-A7C1-2A7EE40BDFEF.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS29E7452E-59EE-45D3-B19C-01999774AEE0.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS76EDCAB9-5E82-4D90-BF2A-E253F21A7B65.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCSEBA23441-0D59-4AC2-AA18-F916B1165EBC.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS33F5EF69-EA1E-4EE3-BDC1-8554EC978496.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCSA4F8F186-747F-47BC-8C20-339E18578239.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS686B036E-B0C5-42DB-83FF-F840920AB811.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS169C7814-CDDC-4653-851F-CC9F847165C8.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS2655F327-F7A2-43F1-8DB3-3E77D933213A.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS9D986447-8257-46A9-B50F-A85AD5A00981.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS98FE4ECC-3F93-43D9-AC58-A453FC534850.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCSCA203F93-50EF-4745-A285-EF73C8C0E03C.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS45853F23-E69F-4531-A341-AFA479F4436F.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCSC90EB672-AE4C-45E9-B5C1-8EEBFB08F61E.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS6A109406-EF5A-4984-A0BE-8B5273EB2191.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS45C0AB5E-9097-4310-9F12-B664243DCE5F.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCSDAD176D1-FBF0-4762-AF36-2EB8F1507D4A.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS7EB395CE-7C14-449C-93FD-C4D24C5B564A.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS63130E9F-BC04-485A-821C-9F8E926AF03F.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS5239EA00-3B40-4A8B-A697-BFE7274966AB.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS1A2EE24A-5CE1-4B6F-A010-F50AF5CEFAAB.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCSC92887FE-AF55-4A56-89A5-AE5C0986CFC9.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCSB8AD36B0-748B-4DC3-BEA2-C66C0D3E7181.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCSE5F281F8-91CC-4F47-AED8-09ECE981299E.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS56D18856-7952-4050-8F79-A9E6B3452503.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS1B77E3D5-21D5-48F5-8429-A67185A87B3F.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCSB5BB6745-57FE-495D-A42F-E3E53E575EB1.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS9F87C769-20FC-4F70-9DCA-500041F742C4.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS87AA5FEB-5B37-4D87-B2C0-0CA85BBEC276.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS338848FA-302F-4B86-8070-00BB8F24D834.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS1BBB3901-7DF0-4CA9-B8D1-572834D8BB51.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCS47C3A5DF-4807-4F14-B632-77B60FBD308C.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCSDACC62FC-9DCB-4E37-B203-1CF96C7B583B.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCSCF659E6F-E333-4C5A-A8AC-F2F22F48B4B4.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCSD2F39405-F7D0-4F18-A01A-C36F61DDD81E.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Temp\SSCSD01EA89A-6036-4ACB-B210-220B608E2284.tmp Object is locked skipped
C:\Documents and Settings\LocalService\Datos de programa\Webroot\Spy Sweeper\Data\settings.dat Object is locked skipped
C:\Documents and Settings\LocalService\ntuser.dat.LOG Object is locked skipped
C:\Documents and Settings\LocalService\NTUSER.DAT Object is locked skipped
C:\Documents and Settings\gon\ntuser.dat.LOG Object is locked skipped
C:\Documents and Settings\gon\Configuración local\Historial\History.IE5\index.dat Object is locked skipped
C:\Documents and Settings\gon\Configuración local\Historial\History.IE5\MSHist0120061215200612 16\index.dat Object is locked skipped
C:\Documents and Settings\gon\Configuración local\Archivos temporales de Internet\Content.IE5\index.dat Object is locked skipped
C:\Documents and Settings\gon\Configuración local\Datos de programa\Microsoft\Windows\UsrClass.dat.LOG Object is locked skipped
C:\Documents and Settings\gon\Configuración local\Datos de programa\Microsoft\Windows\UsrClass.dat Object is locked skipped
C:\Documents and Settings\gon\Cookies\index.dat Object is locked skipped
C:\Documents and Settings\gon\NTUSER.DAT Object is locked skipped
C:\Archivos de programa\Webroot\Spy Sweeper\Masters\Masters.const Object is locked skipped
C:\Archivos de programa\Webroot\Spy Sweeper\Masters\masters.bak Object is locked skipped
C:\Archivos de programa\Webroot\Spy Sweeper\Masters\Masters.mst Object is locked skipped
C:\Archivos de programa\Webroot\Spy Sweeper\Masters.base Object is locked skipped

Scan process completed.