Buenasss

Realiza los siguientes pasos en el orden que te los pongo:

1. Pasa por windows update y actualiza tu sistema
   
   
2. Apaga Restaurar Sistema
   
   
3. Activa ver archivos ocultos de sistema
   
   
4. Descarga las siguientes herramientas, actualiza las que correspondan, pero no las ejecutes aún
   
   
   • AVG Antispyware
   • DiskCleaner
   • RegSeeker
   
   
5. Ejecuta la PC en modo seguro
   
   
6. Con todos los programas cerrados dale "Fix Checked" a estas entradas:
   
   O1 - Hosts: 66.98.148.65 auto.search.msn.com
   O1 - Hosts: 66.98.148.65 auto.search.msn.es
   
   O2 - BHO: (no name) - {DEBEB52F-CFA6-4647-971F-3EDB75B63AFA} - (no file)
   O2 - BHO: (no name) - {fe72fb52-7851-4b7b-beff-2b2d6bed611c} - (no file)
   O3 - Toolbar: (no name) - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - (no file)
   
   O3 - Toolbar: (no name) - {0BF43445-2F28-4351-9252-17FE6E806AA0} - (no file)
   
   O16 - DPF: {01BE5BD7-B2DD-48B3-A759-59265A91E787} - http://akamai.downloadv3.com/binaries/EGDAccess/EGDACCESS_1064_XP.cab
   O16 - DPF: {04F414E9-E352-4BC3-963D-7BFE5A5F31A9} - http://scripts.dlv4.com/binaries/egaccess4/egaccess4_1064_XP.cab
   O16 - DPF: {07C9CFC7-DE33-4A0C-9FFB-CDFBA843B157} - http://akamai.downloadv3.com/binaries/EGDAccess/EGDACCESS_1063_XP.cab
   O16 - DPF: {0878F049-D33E-45E0-A157-C36A6683CF25} - http://scripts.dlv4.com/binaries/egaccess4/egaccess4_1063_XP.cab
   O16 - DPF: {1CD49DC9-FD88-41FA-B892-47E037267D45} - http://akamai.downloadv3.com/binaries/EGDAccess/EGDACCESS_1059_XP.cab
   O16 - DPF: {1CD4E2DC-2DA0-4154-8723-38CB04FB6A58} - http://scripts.dlv4.com/binaries/egaccess4/egaccess4_1062_XP.cab
   O16 - DPF: {201B9B37-848F-40BD-90EA-7B8F0AA89D6A} - http://us2-scripts.dlv4.com/binaries/egaccess4/egaccess4_1071_em_XP.cab
   O16 - DPF: {205FF73B-CA67-11D5-99DD-444553540000} - http://www.spywarestormer.com/files2/Install.cab
   O16 - DPF: {26D73573-F1B3-48C9-A989-E6CE071957A1} - http://akamai.downloadv3.com/binaries/EGDAccess/EGDACCESS_1057_XP.cab
   O16 - DPF: {3446598E-00E4-4B5E-99A6-87ECCA8324A2} - http://akamai.downloadv3.com/binaries/EGDAccess/EGDACCESS_1056_XP.cab
   O16 - DPF: {486E48B5-ABF2-42BB-A327-2679DF3FB822} - http://akamai.downloadv3.com/binaries/IA/ia_XP.cab
   
   O16 - DPF: {54579C3D-A58D-4623-B5B5-465552BDA45B} - http://scripts.downloadv3.com/binaries/EGDAccess/EGDACCESS_1072_ASPIV4_XP.cab
   O16 - DPF: {624321F1-0581-49D8-99BD-2E952C2DF31B} - http://akamai.downloadv3.com/binaries/EGDAccess/EGDACCESS_1063_ASPIV4_XP.cab
   O16 - DPF: {82FC4503-8459-4239-9B85-0617BEAA950A} - http://scripts.dlv4.com/binaries/egaccess4/egaccess4_1061_XP.cab
   O16 - DPF: {87C1805D-C5AE-4455-AB39-E245BB516136} - http://scripts.dlv4.com/binaries/egaccess4/egaccess4_1059_XP.cab
   O16 - DPF: {8D8BAF56-B581-4B90-A549-C4AC6B03F1BB} - http://scripts.downloadv3.com/binaries/EGDAccess/EGDACCESS_1074_XP.cab
   O16 - DPF: {95460ABD-946A-46FF-9F56-268718323EEE} - http://scripts.downloadv3.com/binaries/EGDAccess/EGDACCESS_1068_XP.cab
   O16 - DPF: {9A9307A0-7DA4-4DAF-B042-5009F29E09E1} (ActiveScan Installer Class) -
   O16 - DPF: {A1D886C6-4039-4451-97A9-515F5BE5D4C2} (mkdplusCtrl Class) - https://boveda.banamex.com.mx/mkdplus.cab
   O16 - DPF: {AF7410C1-FBA3-415E-800A-4110CED40536} - http://scripts.dlv4.com/binaries/egaccess4/egaccess4_1060_XP.cab
   
   O16 - DPF: {BFC9677B-8006-4336-9D49-2C797AEFCB9E} - http://akamai.downloadv3.com/binaries/EGDAccess/EGDACCESS_1058_XP.cab
   O16 - DPF: {CB5D474E-A510-40A4-B5A4-838933BCBA64} - http://scripts.dlv4.com/binaries/egaccess4/egaccess4_1065_XP.cab
   O16 - DPF: {E3943A24-2F83-4505-9AE5-F705E81B50CB} - http://akamai.downloadv3.com/binaries/EGDAccess/EGDACCESS_1055_XP.cab
   O16 - DPF: {EF4DCD99-D26B-44A4-BA77-CFDCC97E7291} - http://akamai.downloadv3.com/binaries/EGDAccess/EGDACCESS_1062_XP.cab
   O16 - DPF: {EFB23983-5803-4914-ADA3-C0EA2CFBDC37} - http://scripts.downloadv3.com/binaries/EGDAccess/EGDACCESS_1072_XP.cab
   O16 - DPF: {FA1D6D8F-C6ED-4752-8512-A33283240130} - http://scripts.dlv4.com/binaries/egaccess4/egaccess4_1066_XP.cab
   O16 - DPF: {FA605711-8E72-46B2-AE49-BED11B2E729D} - http://akamai.downloadv3.com/binaries/EGDAccess/EGDACCESS_1063_ASPIV4_XP.cab
   O20 - AppInit_DLLs:
   O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\
   O20 - Winlogon Notify: __c00C4917 - C:\WINDOWS\System32\__c00C4917.dat (file missing)
   
   
7. Escanea la Pc con AVG AntiSpyware
   
   
8. Pasa primero el DiskCleaner para limpiar cookies y temporales y luego el RegSeeker para limpiar el registro
   
   
9. Reinicia el equipo y escanea con Ewido Online
   
   
10. Instala SpywareBlaster
    
    
11. Peganos un nuevo reporte de HiJackThis en modo normal para ver como quedó y contanos como sigues con el problema

*Si quieres puedes imprimir las instrucciones para que te resulte mas facil seguirlas*

Saludos