进程里面突然多了11个drwtsn32.exe进程，是不是中木马了？怎么杀毒软件查不出来啊？以下是进程扫描日志：
Process list saved on 0:52:09, on 2006-2-21
Platform: Windows XP SP2, v.2622 (WinNT 5.01.2600)
[pid] [full path to filename] [file version] [company name]
496 C:\WINDOWS\System32\smss.exe 5.1.2600.2180 Microsoft Corporation
576 C:\WINDOWS\system32\winlogon.exe 5.1.2600.2180 Microsoft Corporation
620 C:\WINDOWS\system32\services.exe 5.1.2600.2180 Microsoft Corporation
632 C:\WINDOWS\system32\lsass.exe 5.1.2600.2180 Microsoft Corporation
784 C:\WINDOWS\system32\svchost.exe 5.1.2600.2180 Microsoft Corporation
908 C:\WINDOWS\System32\svchost.exe 5.1.2600.2180 Microsoft Corporation
1272 C:\KAV2005\KWatch.EXE 2005.9.27.51 Kingsoft Corporation
1328 C:\WINDOWS\system32\spoolsv.exe 5.1.2600.2696 Microsoft Corporation
1704 C:\WINDOWS\Explorer.EXE 6.0.2900.2180 Microsoft Corporation
1816 C:\WINDOWS\system32\RUNDLL32.exe 5.1.2600.2180 Microsoft Corporation
1824 C:\KAV2005\KAVStart.exe 2005.12.15.192 Kingsoft Corporation
1836 C:\Program Files\Common Files\Real\Update_OB\realsched.exe 0.1.0.1622 RealNetworks, Inc.
1940 C:\WINDOWS\system32\ctfmon.exe 5.1.2600.2180 Microsoft Corporation
2012 C:\KAV2005\KPFW32.EXE 2006.1.17.609 Kingsoft Corporation
2040 C:\KAV2005\KMailMon.EXE 2005.10.8.85 Kingsoft Corporation
1720 C:\KAV2005\KPfwSvc.EXE 2005.9.5.28 Kingsoft Corporation
1788 C:\KV2004\KVwsc.exe 1.0.0.8 Jiangmin Co
328 C:\WINDOWS\system32\svchost.exe 5.1.2600.2180 Microsoft Corporation
240 C:\Program Files\Common Files\SAND\qqfacerclient.exe 1.563.15.5 COMENET TECHNOLOGY
1600 C:\WINDOWS\system32\wuauclt.exe 5.8.0.2469 Microsoft Corporation
2592 C:\KV2004\KvXP.kxp 8.0.0.309 Jiangmin software
2640 C:\WINDOWS\system32\DllHost.exe 5.1.2600.2180 Microsoft Corporation
488 C:\WINDOWS\msagent\AgentSvr.exe 2.0.0.3422 Microsoft Corporation
2156 C:\WINDOWS\system32\drwtsn32.exe 5.1.2600.0 Microsoft Corporation
3272 C:\WINDOWS\system32\drwtsn32.exe 5.1.2600.0 Microsoft Corporation
3644 C:\WINDOWS\system32\drwtsn32.exe 5.1.2600.0 Microsoft Corporation
3812 C:\WINDOWS\system32\drwtsn32.exe 5.1.2600.0 Microsoft Corporation
2808 C:\WINDOWS\system32\drwtsn32.exe 5.1.2600.0 Microsoft Corporation
2308 C:\WINDOWS\system32\drwtsn32.exe 5.1.2600.0 Microsoft Corporation
3676 C:\WINDOWS\system32\drwtsn32.exe 5.1.2600.0 Microsoft Corporation
3328 C:\WINDOWS\system32\drwtsn32.exe 5.1.2600.0 Microsoft Corporation
776 C:\WINDOWS\system32\drwtsn32.exe 5.1.2600.0 Microsoft Corporation
2676 C:\WINDOWS\system32\drwtsn32.exe 5.1.2600.0 Microsoft Corporation
3636 C:\WINDOWS\system32\taskmgr.exe 5.1.2600.2180 Microsoft Corporation
536 C:\KAV2005\KASMain.EXE 2005.12.5.52 Kingsoft Corporation
892 D:\802.1x客户端\Dot1xClient.exe
3544 D:\ie修复\HijackThis.exe 1.99.0.1 Soeperman Enterprises Ltd.
3572 C:\WINDOWS\system32\NOTEPAD.EXE 5.1.2600.2180 Microsoft Corporation
