Per prima cosa : grazie per il tuo tempo.
Secondo qui di seguito il report di avenger ed inizio con CureIt:
Logfile of The Avenger Version 2.0, (c) by Swandog46
http://swandog46.geekstogo.com

Platform: Windows XP

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Script file opened successfully.
Script file read successfully.

Backups directory opened successfully at C:\Avenger

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Beginning to process script file:

Rootkit scan active.
No rootkits found!

File "C:\WINDOWS\tsnp2std .exe" deleted successfully.
File "C:\WINDOWS\vsnp2std .exe" deleted successfully.
File "C:\WINDOWS\tsnp2std.exe3563150863" deleted successfully.
File "C:\WINDOWS\vsnp2std.exe3574937848" deleted successfully.
File "C:\WINDOWS\tsnp2std.exe1913189000" deleted successfully.
File "C:\WINDOWS\vsnp2std.exe533707403" deleted successfully.
File "C:\WINDOWS\tsnp2std.exe563010489" deleted successfully.
File "C:\WINDOWS\vsnp2std.exe4184905570" deleted successfully.
File "C:\WINDOWS\tsnp2std.exe3909546863" deleted successfully.
File "C:\WINDOWS\vsnp2std.exe2446222178" deleted successfully.
File "C:\WINDOWS\tsnp2std.exe3875825379" deleted successfully.
File "C:\WINDOWS\vsnp2std.exe2155716978" deleted successfully.
File "C:\WINDOWS\tsnp2std.exe1938127826" deleted successfully.
File "C:\WINDOWS\vsnp2std.exe2228181320" deleted successfully.
File "C:\WINDOWS\tsnp2std.exe1042392148" deleted successfully.
File "C:\WINDOWS\vsnp2std.exe930078775" deleted successfully.
File "C:\WINDOWS\tsnp2std.exe4270876507" deleted successfully.
File "C:\WINDOWS\vsnp2std.exe3855752423" deleted successfully.
File "C:\DOCUME~1\Utente\IMPOST~1\Temp\r1363842635. exe" deleted successfully.
File "C:\DOCUME~1\Utente\IMPOST~1\Temp\38508.exe" deleted successfully.
File "C:\DOCUME~1\Utente\IMPOST~1\Temp\r3216735838. exe" deleted successfully.
File "C:\DOCUME~1\Utente\IMPOST~1\Temp\69713.exe" deleted successfully.
File "C:\DOCUME~1\Utente\IMPOST~1\Temp\r53683613.ex e" deleted successfully.
File "C:\DOCUME~1\Utente\IMPOST~1\Temp\r2855397075. exe" deleted successfully.
File "C:\DOCUME~1\Utente\IMPOST~1\Temp\r2127096498. exe" deleted successfully.
File "C:\DOCUME~1\Utente\IMPOST~1\Temp\r1646697746. exe" deleted successfully.
File "C:\DOCUME~1\Utente\IMPOST~1\Temp\r564564252.e xe" deleted successfully.

Completed script processing.

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Finished! Terminate.