I've done all scans with all programs you've suggested and now I'm sending you HijackThis log. For now Avast didn't find trojan "rdriv" but I'd rather take some advice from expert. Thank you.
Logfile of HijackThis v1.99.1
Scan saved at 14:36:26, on 17.8.2005
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)
Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\csrss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\System32\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.exe
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\Program Files\Common Files\EPSON\EBAPI\SAgent2.exe
C:\Program Files\ewido\security suite\ewidoctrl.exe
C:\WINDOWS\netinfo.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\wdfmgr.exe
C:\WINDOWS\System32\hxtkdk.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\WINDOWS\System32\wbem\wmiprvse.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Documents and Settings\DArtaMJAN\Desktop\HijackThis.exe
R3 - Default URLSearchHook is missing
F2 - REG:system.ini: Shell=Explorer.exe C:\WINDOWS\Nail.exe
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O4 - HKLM\..\Run: [ATIPTA] atiptaxx.exe
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [Win32 NT Adv Services] taskmngr.exe
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [Network Security] secsvc.exe
O4 - HKLM\..\Run: [Microsoft Bin] msbin.exe
O4 - HKLM\..\Run: [Winddows Servicer] servicer.exe
O4 - HKLM\..\Run: [THGuard] "C:\Program Files\TrojanHunter 4.2\THGuard.exe"
O4 - HKLM\..\Run: [upmceq] C:\WINDOWS\System32\hxtkdk.exe r
O4 - HKLM\..\RunServices: [Win32 NT Adv Services] taskmngr.exe
O4 - HKLM\..\RunServices: [Microsoftz turn Control] read.pif
O4 - HKLM\..\RunServices: [Microsoftx U] winupdatexp.exe
O4 - HKLM\..\RunServices: [Microsoftf DDEs Control] soff.pif
O4 - HKLM\..\RunServices: [Network Security] secsvc.exe
O4 - HKLM\..\RunServices: [Micromedia Flashin Update] explore.exe
O4 - HKLM\..\RunServices: [Microsoft Bin] msbin.exe
O4 - HKLM\..\RunServices: [Winddows Servicer] servicer.exe
O4 - HKCU\..\Run: [Microsoft Bin] msbin.exe
O4 - HKCU\..\RunServices: [Windows NetStart Service] winsN2S.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_02\bin\npjpi150_02.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_02\bin\npjpi150_02.dll
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\MSMSGS.EXE
O9 - Extra 'Tools' menuitem: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\MSMSGS.EXE
O12 - Plugin for .spop: C:\Program Files\Internet Explorer\Plugins\NPDocBox.dll
O16 - DPF: {8E0D4DE5-3180-4024-A327-4DFAD1796A8D} (MessengerStatsClient Class) - http://messenger.zon...nt.cab31267.cab
O16 - DPF: {9A9307A0-7DA4-4DAF-B042-5009F29E09E1} (ActiveScan Installer Class) - http://www.pandasoft...free/asinst.cab
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - Unknown owner - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\System32\Ati2evxx.exe
O23 - Service: ATI Smart - Unknown owner - C:\WINDOWS\system32\ati2sgag.exe
O23 - Service: avast! Antivirus - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe" /service (file missing)
O23 - Service: avast! Web Scanner - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe" /service (file missing)
O23 - Service: EPSON Printer Status Agent2 (EPSONStatusAgent2) - SEIKO EPSON CORPORATION - C:\Program Files\Common Files\EPSON\EBAPI\SAgent2.exe
O23 - Service: ewido security suite control - ewido networks - C:\Program Files\ewido\security suite\ewidoctrl.exe
O23 - Service: lsa driver service (lsaDriver) - Unknown owner - C:\WINDOWS\lsa.exe (file missing)
O23 - Service: MSUpdate (Microsoft Update Service for 2005) - Unknown owner - C:\WINDOWS\msupdate24.exe (file missing)
O23 - Service: netinfo - Unknown owner - C:\WINDOWS\netinfo.exe
O23 - Service: Personal Document Firewall (PDFW) - Unknown owner - C:\WINDOWS\pdf.exe
O23 - Service: System Startup Service (SvcProc) - Unknown owner - C:\WINDOWS\svcproc.exe
O23 - Service: System Messenger Service (WINSMSC) - Unknown owner - C:\WINDOWS\smsc.exe (file missing)