Eu rodei o Hijackthis e aqui está o que surgiu no rastreamento:
Log da Trend Micro HijackThis 2.0.2
Rastreamento salvo as 16:45:39, em 2008-5-19
Plataforma: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
Modo de inicialização: Normal
Processos em execução:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
Explorer
C:\WINDOWS\ATK0100\HControl.exe
C:\Arquivos Files\Synaptics\SynTP\SynTPEnh.exe
C:\WINDOWS\RTHDCPL.EXE
C:\Program Files\Kaspersky Lab\Kaspersky anti 7.0\avp.exe
C:\WINDOWS\system32\Rundll32.exe
C:\Program Files\Adobe\Reader 8.0\Reader\Reader_sl.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Arquivos Files\Kaspersky Lab\Kaspersky anti 7.0\avp.exe
C:\Arquivos Files\StormII\stormliv.exe
C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\mscorsvw.exe
C:\WINDOWS\system32\svchost.exe C:\WINDOWS\ATK0100\ATKOSD.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe
O2 - BHO: Thunder AtOnce-{01443AEC-0FD1-40fd-9C87-E93D1494C233} - C:\Program Files\Thunder Network\Thunder\ComDlls\TDAtOnce_Now.dll
O2 - BHO: Adobe PDF Reader Link Helper-{06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Arquivos de programas\Arquivos Files\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: ThunderBHO-{889D2FEB-5411-4565-8998-1DD2C5261283} - C:\Program Files\Thunder Network\Thunder\ComDlls\xunleiBHO_Now.dll
O4 - HKLM\...\Executar: [IMJPMIG8.1] "C:\WINDOWS\IME\imjp8_1\IMJPMIG.EXE"/ estragar /RemAdvDef /Migration32
O4 - HKLM\...\Executar: [PHIME2002ASync] C:\WINDOWS\system32\IME\TINTLGNT\TINTSETP.EXE /SYNC
O4 - HKLM\...\Executar: [PHIME2002A] C:\WINDOWS\system32\IME\TINTLGNT\TINTSETP.EXE /IMEName
O4 - HKLM\...\Executar: [HControl] C:\WINDOWS\ATK0100\HControl.exe
entre outros, com erro tipográfico também. Muito obrigado de antemão.