[help] what happen with my computer?

dear all virusinfo

yesterday, i dont know what happen exactly, but suddenly, i feel my computer slowdown drasticaly. i try to scan it with some antivirus, but there is no suspicious process in the memory.
Can somebody tell me what happen with my computer?
is there any botnet or something in it?

thanks before, for any help. :)

Why you did not update your system and antivirus version?
Do it now ;)
Download special avz in my signature, disable internet and antivirus,
execute this script in avz:
[code]begin
SearchRootkit(true, true);
SetAVZGuardStatus(True);
QuarantineFile('C:\Documents and Settings\BlueThunder\Local Settings\Temp\RarSFX0\cpurocket.dll','');
QuarantineFile('C:\Documents and Settings\BlueThunder\Local Settings\Temp\RarSFX0\MemTurbo.exe','');
QuarantineFile('C:\WINDOWS\system32\drivers\lgjium.sys','');
QuarantineFile('C:\WINDOWS\system32\DRIVERS\nvmini.sys','');
BC_ImportAll;
BC_Activate;
RebootWindows(true);
end.[/code]
System will reboot.
Please upload the quarantine according to appendix 3 of rules([url]http://virusinfo.info/showthread.php?t=9184[/url])
Let us know, when you done.

i already upload your requested file. please tell me what happen with my computer.
thanks.

in your case C:\WINDOWS\system32\DRIVERS\nvmini.sys - its is Rootkit.Win32.Agent.ga
[kaspersky]

Again, you have an infection that latest version is capable to fight, and not yours.
Please execute this script in avz:
[code]
begin
SearchRootkit(true, true);
SetAVZGuardStatus(True);
DeleteFile('C:\WINDOWS\system32\drivers\lgjium.sys');
DeleteFile('C:\WINDOWS\system32\DRIVERS\nvmini.sys');
DeleteService('aic32p');
BC_ImportDeletedList;
ExecuteSysClean;
BC_Activate;
ExecuteRepair(6);
ExecuteRepair(8);
ExecuteRepair(9);
RebootWindows(true);
end.
[/code]
Update your antivirus- it knows your infection, update its bases and do a full scan.
Only after that make a new logs according to rules.