I used Malwarebytes and try to remove the virus.
It said that C:\Users\sqs\AppData\Local\Temp\b.exe (Trojan.Downloader) could not be deleted....
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Malwarebytes' Anti-Malware 1.41
Database version: 2992
Windows 6.0.6001 Service Pack 1
19/10/2009 9:33:41 PM
mbam-log-2009-10-19 (21-33-41).txt
Scan type: Quick Scan
Objects scanned: 88204
Time elapsed: 6 minute(s), 38 second(s)
Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 4
Registry Values Infected: 1
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 4
Memory Processes Infected:
(No malicious items detected)
Memory Modules Infected:
(No malicious items detected)
Registry Keys Infected:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Stats\{1d4db7d2-6ec9-47a3-bd87-1e41684e07bb} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\NordBull (Malware.Trace) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\XML (Trojan.FakeAlert) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\poprock (Trojan.Downloader) -> Quarantined and deleted successfully.
Registry Values Infected:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\poprock (Trojan.Downloader) -> Quarantined and deleted successfully.
Registry Data Items Infected:
(No malicious items detected)
Folders Infected:
(No malicious items detected)
Files Infected:
C:\Windows\msa.exe (Trojan.Agent) -> Quarantined and deleted successfully.
C:\Windows\Tasks\{7B02EF0B-A410-4938-8480-9BA26420A627}.job (Trojan.Downloader) -> Quarantined and deleted successfully.
C:\Windows\Tasks\{BB65B0FB-5712-401b-B616-E69AC55E2757}.job (Trojan.Downloader) -> Quarantined and deleted successfully.
C:\Users\sqs\AppData\Local\Temp\b.exe (Trojan.Downloader) -> Delete on reboot.
It said that C:\Users\sqs\AppData\Local\Temp\b.exe (Trojan.Downloader) could not be deleted....
_____________________________________________________
Malwarebytes' Anti-Malware 1.41
Database version: 2992
Windows 6.0.6001 Service Pack 1
19/10/2009 9:33:41 PM
mbam-log-2009-10-19 (21-33-41).txt
Scan type: Quick Scan
Objects scanned: 88204
Time elapsed: 6 minute(s), 38 second(s)
Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 4
Registry Values Infected: 1
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 4
Memory Processes Infected:
(No malicious items detected)
Memory Modules Infected:
(No malicious items detected)
Registry Keys Infected:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Stats\{1d4db7d2-6ec9-47a3-bd87-1e41684e07bb} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\NordBull (Malware.Trace) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\XML (Trojan.FakeAlert) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\poprock (Trojan.Downloader) -> Quarantined and deleted successfully.
Registry Values Infected:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\poprock (Trojan.Downloader) -> Quarantined and deleted successfully.
Registry Data Items Infected:
(No malicious items detected)
Folders Infected:
(No malicious items detected)
Files Infected:
C:\Windows\msa.exe (Trojan.Agent) -> Quarantined and deleted successfully.
C:\Windows\Tasks\{7B02EF0B-A410-4938-8480-9BA26420A627}.job (Trojan.Downloader) -> Quarantined and deleted successfully.
C:\Windows\Tasks\{BB65B0FB-5712-401b-B616-E69AC55E2757}.job (Trojan.Downloader) -> Quarantined and deleted successfully.
C:\Users\sqs\AppData\Local\Temp\b.exe (Trojan.Downloader) -> Delete on reboot.