Alchemic, bispy, idly, agent AE, ruledor, etc

bonsoir,
g effectué un scan en ligne avecRAVANTVIRUS, et voici le résultat:

Scanning memory...
Scanning boot sectors...
Scanning files...
C:\WINDOWS\twaintec.dll - Trojan:Win32/Spy.BiSpy.C -> Infected
C:\WINDOWS\system32\IdleUI.dll - TrojanSpy/Win32.Idly.C -> Infected
C:\WINDOWS\Downloaded Program Files\WebRecomendada.dll - Tool:PornDialer.DE -> Infected
C:\Documents and Settings\nordine\Local Settings\Temp\alchem.cab->alchem.exe - TrojanDownloader:Win32/Alchemic.A -> Infected
C:\Documents and Settings\nordine\Local Settings\Temp\alchem.exe - TrojanDownloader:Win32/Alchemic.A -> Infected
C:\Documents and Settings\nordine\Local Settings\Temp\THI43AD.tmp\twaintec.cab->twaintec.dll - Trojan:Win32/Spy.BiSpy.C -> Infected
C:\Documents and Settings\nordine\Local Settings\Temp\THI43AD.tmp\twaintec.cab->polall1t.exe - TrojanDownloader:Win32/Agent.AE -> Infected
C:\Documents and Settings\nordine\Local Settings\Temp\THI43AD.tmp\twaintec.dll - Trojan:Win32/Spy.BiSpy.C -> Infected
C:\Documents and Settings\nordine\Local Settings\Temp\THI43AD.tmp\polall1t.exe - TrojanDownloader:Win32/Agent.AE -> Infected
C:\Documents and Settings\nordine\Local Settings\Temp\THI4B52.tmp\twaintec.cab->twaintec.dll - Trojan:Win32/Spy.BiSpy.C -> Infected
C:\Documents and Settings\nordine\Local Settings\Temp\THI4B52.tmp\twaintec.cab->polall1t.exe - TrojanDownloader:Win32/Agent.AE -> Infected
C:\Documents and Settings\nordine\Local Settings\Temp\THI4B52.tmp\twaintec.dll - Trojan:Win32/Spy.BiSpy.C -> Infected
C:\Documents and Settings\nordine\Local Settings\Temp\THI24DC.tmp\twaintec.cab->twaintec.dll - Trojan:Win32/Spy.BiSpy.C -> Infected
C:\Documents and Settings\nordine\Local Settings\Temp\THI24DC.tmp\twaintec.cab->polall1t.exe - TrojanDownloader:Win32/Agent.AE -> Infected
C:\Documents and Settings\nordine\Local Settings\Temp\THI24DC.tmp\twaintec.dll - Trojan:Win32/Spy.BiSpy.C -> Infected
C:\Documents and Settings\nordine\Local Settings\Temporary Internet Files\Content.IE5\EXJ8DWJ6\navigation[1].htm->(EncScript) - Exploit:HTML/MhtRedir.gen* -> Infected
C:\Documents and Settings\nordine\Local Settings\Temporary Internet Files\Content.IE5\SJXFAQN5\navigation[1].htm->(EncScript) - Exploit:HTML/MhtRedir.gen* -> Infected
C:\System Volume Information\_restore{1C99399C-5A75-4FB7-A4FE-D779B9C6E8B2}\RP128\A0024245.exe - TrojanDownloader:Win32/Agent.AB -> Infected
C:\System Volume Information\_restore{1C99399C-5A75-4FB7-A4FE-D779B9C6E8B2}\RP128\A0024249.exe - Backdoor:Win32/Ruledor.E -> Infected
C:\System Volume Information\_restore{1C99399C-5A75-4FB7-A4FE-D779B9C6E8B2}\RP128\A0024250.exe - Trojan:Win32/SecondThought.A -> Infected
C:\System Volume Information\_restore{1C99399C-5A75-4FB7-A4FE-D779B9C6E8B2}\RP130\A0024311.exe - TrojanDownloader:Win32/Agent.AE -> Infected
C:\System Volume Information\_restore{1C99399C-5A75-4FB7-A4FE-D779B9C6E8B2}\RP136\A0024477.exe - TrojanDownloader:Win32/Dyfuca.CQ -> Infected
C:\System Volume Information\_restore{1C99399C-5A75-4FB7-A4FE-D779B9C6E8B2}\RP136\A0024479.EXE - Trojan:Win32/SecondThought.A -> Infected
C:\System Volume Information\_restore{1C99399C-5A75-4FB7-A4FE-D779B9C6E8B2}\RP139\A0025533.exe - Backdoor:Win32/Ruledor.E -> Infected

Scanned
============================
Objects: 25122
Directories: 2238
Archives: 1204
Size(Kb): 1542629
Infected files: 24

Found
============================
Viruses found: 10
Suspicious files: 0
Disinfected files: 0
Mail files: 332

AAAAAAAAAARRRRRGHHH!! mais c'est quoi tout ça? vous pourriez m'aider à virer tous ces trucs du Pc ( sous XP)? et au passage m'expliquer pourquoi norton n'a rien vu? ( i dort ou koi, çui-là?)
mille merci