All right i found solution for my own problem ...well in my case it was some DNS problem and when i checked my computer with Anti- malware named ......there were 3 trojans found and they were Trojan.Dns changer ...well for now it had fixed problem i cannot gurantee its permanent fix but i would recommend that those who has same problem with google search use Malwarebytes software and it wil solve the problem in most causes....anyways below is the information where these trojans had affected in my computer ..
Malwarebytes' Anti-Malware 1.31
Database version: 1466
Windows 6.0.6001 Service Pack 1
12/6/2008 9:16:32 AM
mbam-log-2008-12-06 (09-16-32).txt
Scan type: Quick Scan
Objects scanned: 52963
Time elapsed: 3 minute(s), 16 second(s)
Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 2
Registry Values Infected: 1
Registry Data Items Infected: 3
Folders Infected: 1
Files Infected: 2
Memory Processes Infected:
(No malicious items detected)
Memory Modules Infected:
(No malicious items detected)
Registry Keys Infected:
HKEY_CLASSES_ROOT\CLSID\{147a976f-eee1-4377-8ea7-4716e4cdd239} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Windows Tribute Service (Trojan.Agent) -> Delete on reboot.
Registry Values Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c53.tmp (Trojan.Agent) -> Quarantined and deleted successfully.
Registry Data Items Infected:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\{cd384f7e-f098-400c-aa96-6fb2fff73209}\NameServer (Trojan.DNSChanger) -> Data: 85.255.112.132;85.255.112.12 -> Delete on reboot.
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Interfaces\{cd384f7e-f098-400c-aa96-6fb2fff73209}\NameServer (Trojan.DNSChanger) -> Data: 85.255.112.132;85.255.112.12 -> Delete on reboot.
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\Tcpip\Parameters\Interfaces\{cd384f7e-f098-400c-aa96-6fb2fff73209}\NameServer (Trojan.DNSChanger) -> Data: 85.255.112.132;85.255.112.12 -> Quarantined and deleted successfully.
Folders Infected:
C:\resycled (Trojan.DNSChanger) -> Quarantined and deleted successfully.
Files Infected:
C:\resycled\boot.com (Trojan.DNSChanger) -> Quarantined and deleted successfully.
C:\Windows\Temp\C53.tmp (Trojan.Agent) -> Quarantined and deleted successfully.
WARNING : this trojans are not detected by any antivirus releases until sept -2008...so use anti-malware and remove it if possible or manually serach for these locations and delete it .