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help please!!! ; cve-2008-4250 popups all the time (no worms/threats on my computer though)


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#1 jds923

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Posted 31 July 2011 - 04:39 PM

hi. i have windows xp professional service pack 3 on my laptop. i have AT&T wireless internet. i continually get popups from norton antivirus (the newest one) concerning "an intrusion attempt by such & such ip address was blocked". i have researched the code of the os attack & it was cve-2008-4250. after further researching that code, i found that it was the w32 conficker worm. however, after using bit defender (full system scan), norton antivirus (full system scan), norton erase tool, & the w32 worm removal tool, none of those came up with anything. there were no threats on my computer, including no worms. now, the popups come up every so minutes now. i'm ready to pull my hair out. what else can i do if there is no worm? if i reinstall windows, will i receive these popups from my internet all over again? i prefer not reinstalling windows unless it has to be done. any help would be absolutely wonderful. thank you!

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#2 boopme

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Posted 31 July 2011 - 04:59 PM

Hello, what is the pop up saying exactly.nay just be NAV doing it's job or even a False Positive.
What is your Operating System?

This may be a buried rootkit,

Please download Rootkit Unhooker from one of the following links and save it to your desktop.
Link 1 (.exe file)
Link 2 (zipped file)
Link 3 (.rar file)In order to use this tool if you downloaded from either of the second two links, you will need to extract the RKUnhookerLE.exe file using a program capable of extracing ZIP and RAR compressed files. If you don't have an extraction program, you can downlaod, install and use the free 7-zip utility.

  • Double-click on RKUnhookerLE.exe to start the program.
    Vista/Windows 7 users right-click and select Run As Administrator.
  • Click the Report tab, then click Scan.
  • Check Drivers, Stealth, and uncheck the rest.
  • Click OK.
  • Wait until it's finished and then go to File > Save Report.
  • Save the report to your Desktop.
  • Copy and paste the contents of the report into your next reply.
-- Note: You may get this warning...just ignore it, click OK and continue: "Rootkit Unhooker has detected a parasite inside itself! It is recommended to remove parasite, okay?".

Edited by boopme, 31 July 2011 - 05:04 PM.

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#3 jds923

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Posted 31 July 2011 - 07:04 PM

thank you very much for getting back to me. i am using windows xp professional service pack 3. the popup says "os attack: ms windows server service rpc handling cve-2008-4250". it happens when i use google chrome or when the computer is just sitting there without the internet open. it happens about 5-6 times a day. i followed your instructions & this is the the result:


RkU Version: 3.8.389.593, Type LE (SR2)
==============================================
OS Name: Windows XP
Version 5.1.2600 (Service Pack 3)
Number of processors #1
==============================================
>Drivers
==============================================
0xBF012000 C:\WINDOWS\System32\nv4_disp.dll 3346432 bytes (NVIDIA Corporation, NVIDIA Compatible Windows 2000 Display driver, Version 44.85 )
0x804D7000 C:\WINDOWS\system32\ntoskrnl.exe 2192768 bytes (Microsoft Corporation, NT Kernel & System)
0x804D7000 PnpManager 2192768 bytes
0x804D7000 RAW 2192768 bytes
0x804D7000 WMIxWDM 2192768 bytes
0xBF800000 Win32k 1859584 bytes
0xBF800000 C:\WINDOWS\System32\win32k.sys 1859584 bytes (Microsoft Corporation, Multi-User Win32 Driver)
0xF1450000 C:\Documents and Settings\All Users\Application Data\Norton\{0C55C096-0F1D-4F28-AAA2-85EF591126E7}\NAV_18.5.0.125\Definitions\VirusDefs\20110731.003\NAVEX15.SYS 1536000 bytes (Symantec Corporation, AV Engine)
0xF8049000 C:\WINDOWS\system32\DRIVERS\nv4_mini.sys 1265664 bytes (NVIDIA Corporation, NVIDIA Compatible Windows 2000 Miniport Driver, Version 44.85 )
0xF7D85000 C:\WINDOWS\system32\DRIVERS\AGRSM.sys 1171456 bytes (Agere Systems, SoftModem Device Driver)
0xF5819000 C:\Documents and Settings\All Users\Application Data\Norton\{0C55C096-0F1D-4F28-AAA2-85EF591126E7}\NAV_18.5.0.125\Definitions\BASHDefs\20110723.001\BHDrvx86.sys 831488 bytes (Symantec Corporation, BASH Driver)
0xF8300000 SYMEFA.SYS 765952 bytes
0xF7EC7000 C:\WINDOWS\system32\drivers\ALCXWDM.SYS 720896 bytes (Realtek Semiconductor Corp., Realtek AC'97 Audio Driver (WDM))
0xF825C000 Ntfs.sys 577536 bytes (Microsoft Corporation, NT File System Driver)
0xF1B08000 C:\WINDOWS\system32\drivers\NAV\1206000.01D\SRTSP.SYS 548864 bytes (Symantec Corporation, Symantec AutoProtect)
0xF5960000 C:\WINDOWS\system32\DRIVERS\Wdf01000.sys 503808 bytes (Microsoft Corporation, WDF Dynamic)
0xF5AA1000 C:\WINDOWS\system32\DRIVERS\mrxsmb.sys 458752 bytes (Microsoft Corporation, Windows NT SMB Minirdr)
0xF5902000 C:\Program Files\Common Files\Symantec Shared\EENGINE\eeCtrl.sys 385024 bytes (Symantec Corporation, Symantec Eraser Control Driver)
0xF7BEE000 C:\WINDOWS\system32\DRIVERS\update.sys 385024 bytes (Microsoft Corporation, Update Driver)
0xF5BAA000 C:\Documents and Settings\All Users\Application Data\Norton\{0C55C096-0F1D-4F28-AAA2-85EF591126E7}\NAV_18.5.0.125\Definitions\IPSDefs\20110729.030\IDSxpx86.sys 368640 bytes (Symantec Corporation, IDS Core Driver)
0xF5C2A000 C:\WINDOWS\system32\drivers\NAV\1206000.01D\SYMTDI.SYS 364544 bytes (Symantec Corporation, Network Dispatch Driver)
0xF5C83000 C:\WINDOWS\system32\DRIVERS\tcpip.sys 364544 bytes (Microsoft Corporation, TCP/IP Protocol Driver)
0xF286A000 C:\WINDOWS\system32\DRIVERS\srv.sys 360448 bytes (Microsoft Corporation, Server driver)
0xF83CD000 SYMDS.SYS 356352 bytes
0xF7FC2000 C:\WINDOWS\system32\DRIVERS\ar5211.sys 323584 bytes (Atheros Communications, Inc., Driver for Atheros AR5001 Wireless Network Adapter)
0xF1C09000 C:\WINDOWS\System32\Drivers\HTTP.sys 266240 bytes (Microsoft Corporation, HTTP Protocol Stack)
0xF7C4C000 C:\WINDOWS\system32\DRIVERS\rdpdr.sys 196608 bytes (Microsoft Corporation, Microsoft RDP Device redirector)
0xF84B0000 ACPI.sys 188416 bytes (Microsoft Corporation, ACPI Driver for NT)
0xF2A02000 C:\WINDOWS\system32\DRIVERS\mrxdav.sys 184320 bytes (Microsoft Corporation, Windows NT WebDav Minirdr)
0xF822F000 NDIS.sys 184320 bytes (Microsoft Corporation, NDIS 5.1 wrapper driver)
0xF5B11000 C:\WINDOWS\system32\DRIVERS\rdbss.sys 176128 bytes (Microsoft Corporation, Redirected Drive Buffering SubSystem Driver)
0xF5B82000 C:\WINDOWS\system32\DRIVERS\netbt.sys 163840 bytes (Microsoft Corporation, MBT Transport driver)
0xF843C000 dmio.sys 155648 bytes (Microsoft Corp., Veritas Software, NT Disk Manager I/O Driver)
0xF5A7B000 C:\WINDOWS\system32\DRIVERS\ipnat.sys 155648 bytes (Microsoft Corporation, IP Network Address Translator)
0xF5C04000 C:\WINDOWS\system32\Drivers\SYMEVENT.SYS 155648 bytes (Symantec Corporation, Symantec Event Library)
0xF5B3C000 C:\WINDOWS\system32\drivers\NAV\1206000.01D\Ironx86.SYS 147456 bytes (Symantec Corporation, Iron Driver)
0xF7EA3000 C:\WINDOWS\system32\drivers\portcls.sys 147456 bytes (Microsoft Corporation, Port Class (Class Driver for Port/Miniport Devices))
0xF8011000 C:\WINDOWS\system32\DRIVERS\USBPORT.SYS 147456 bytes (Microsoft Corporation, USB 1.1 & 2.0 Port Driver)
0xF7F77000 C:\WINDOWS\system32\DRIVERS\ks.sys 143360 bytes (Microsoft Corporation, Kernel CSA Library)
0xF5B60000 C:\WINDOWS\System32\drivers\afd.sys 139264 bytes (Microsoft Corporation, Ancillary Function Driver for WinSock)
0x806EF000 ACPI_HAL 131840 bytes
0x806EF000 C:\WINDOWS\system32\hal.dll 131840 bytes (Microsoft Corporation, Hardware Abstraction Layer DLL)
0xF84DE000 C:\WINDOWS\System32\drivers\FLTMGR.SYS 131072 bytes (Microsoft Corporation, Microsoft Filesystem Filter Manager)
0xF8462000 ftdisk.sys 126976 bytes (Microsoft Corporation, FT Disk Driver)
0xF58E4000 C:\Program Files\Common Files\Symantec Shared\EENGINE\EraserUtilRebootDrv.sys 122880 bytes (Symantec Corporation, Symantec Eraser Utility Driver)
0xF8481000 pcmcia.sys 122880 bytes (Microsoft Corporation, PCMCIA Bus Driver)
0xF8215000 Mup.sys 106496 bytes (Microsoft Corporation, Multiple UNC Provider driver)
0xF8424000 atapi.sys 98304 bytes (Microsoft Corporation, IDE/ATAPI Port Driver)
0xF57D9000 C:\WINDOWS\System32\Drivers\dump_atapi.sys 98304 bytes
0xF82E9000 KSecDD.sys 94208 bytes (Microsoft Corporation, Kernel Security Support Provider Interface)
0xF7D2D000 C:\WINDOWS\system32\DRIVERS\ndiswan.sys 94208 bytes (Microsoft Corporation, MS PPP Framing Driver (Strong Encryption))
0xF84FE000 SMR200.SYS 94208 bytes (Symantec Corporation, SMR)
0xF2CDD000 C:\WINDOWS\system32\drivers\wdmaud.sys 86016 bytes (Microsoft Corporation, MMSYSTEM Wave/Midi API mapper)
0xF143C000 C:\Documents and Settings\All Users\Application Data\Norton\{0C55C096-0F1D-4F28-AAA2-85EF591126E7}\NAV_18.5.0.125\Definitions\VirusDefs\20110731.003\NAVENG.SYS 81920 bytes (Symantec Corporation, AV Engine)
0xF7F9A000 C:\WINDOWS\system32\DRIVERS\parport.sys 81920 bytes (Microsoft Corporation, Parallel Port Driver)
0xF7FAE000 C:\WINDOWS\system32\DRIVERS\sdbus.sys 81920 bytes (Microsoft Corporation, SecureDigital Bus Driver)
0xF8035000 C:\WINDOWS\system32\DRIVERS\VIDEOPRT.SYS 81920 bytes (Microsoft Corporation, Video Port Driver)
0xF5CDC000 C:\WINDOWS\system32\DRIVERS\ipsec.sys 77824 bytes (Microsoft Corporation, IPSec Driver)
0xBF000000 C:\WINDOWS\System32\drivers\dxg.sys 73728 bytes (Microsoft Corporation, DirectX Graphics Driver)
0xF83BB000 sr.sys 73728 bytes (Microsoft Corporation, System Restore Filesystem Filter Driver)
0xF849F000 pci.sys 69632 bytes (Microsoft Corporation, NT Plug and Play PCI Enumerator)
0xF7D1C000 C:\WINDOWS\system32\DRIVERS\psched.sys 69632 bytes (Microsoft Corporation, MS QoS Packet Scheduler)
0xF86E6000 C:\WINDOWS\System32\Drivers\Cdfs.SYS 65536 bytes (Microsoft Corporation, CD-ROM File System Driver)
0xF8776000 C:\WINDOWS\system32\DRIVERS\cdrom.sys 65536 bytes (Microsoft Corporation, SCSI CD-ROM Driver)
0xF8746000 C:\WINDOWS\system32\DRIVERS\nic1394.sys 65536 bytes (Microsoft Corporation, IEEE1394 Ndis Miniport and Call Manager)
0xF8546000 ohci1394.sys 65536 bytes (Microsoft Corporation, 1394 OpenHCI Port Driver)
0xF86A6000 C:\WINDOWS\system32\DRIVERS\arp1394.sys 61440 bytes (Microsoft Corporation, IP/1394 Arp Client)
0xF8796000 C:\WINDOWS\system32\drivers\drmk.sys 61440 bytes (Microsoft Corporation, Microsoft Kernel DRM Descrambler Filter)
0xF8786000 C:\WINDOWS\system32\DRIVERS\redbook.sys 61440 bytes (Microsoft Corporation, Redbook Audio Filter Driver)
0xF5A4B000 C:\WINDOWS\system32\drivers\sysaudio.sys 61440 bytes (Microsoft Corporation, System Audio WDM Filter)
0xF8636000 C:\WINDOWS\system32\DRIVERS\usbhub.sys 61440 bytes (Microsoft Corporation, Default Hub Driver for USB)
0xF8556000 C:\WINDOWS\system32\DRIVERS\1394BUS.SYS 57344 bytes (Microsoft Corporation, 1394 Bus Device Driver)
0xF8596000 C:\WINDOWS\system32\DRIVERS\CLASSPNP.SYS 53248 bytes (Microsoft Corporation, SCSI Class System Dll)
0xF8756000 C:\WINDOWS\system32\DRIVERS\i8042prt.sys 53248 bytes (Microsoft Corporation, i8042 Port Driver)
0xF87A6000 C:\WINDOWS\system32\DRIVERS\rasl2tp.sys 53248 bytes (Microsoft Corporation, RAS L2TP mini-port/call-manager driver)
0xF8576000 VolSnap.sys 53248 bytes (Microsoft Corporation, Volume Shadow Copy Driver)
0xF86B6000 C:\WINDOWS\system32\DRIVERS\WDFLDR.SYS 53248 bytes (Microsoft Corporation, WDFLDR)
0xF85E6000 C:\WINDOWS\system32\DRIVERS\raspptp.sys 49152 bytes (Microsoft Corporation, Peer-to-Peer Tunneling Protocol)
0xF85B6000 agp440.sys 45056 bytes (Microsoft Corporation, 440 NT AGP Filter)
0xF8686000 C:\WINDOWS\System32\Drivers\Fips.SYS 45056 bytes (Microsoft Corporation, FIPS Crypto Driver)
0xF8766000 C:\WINDOWS\system32\DRIVERS\imapi.sys 45056 bytes (Microsoft Corporation, IMAPI Kernel Driver)
0xF8566000 MountMgr.sys 45056 bytes (Microsoft Corporation, Mount Manager)
0xF85D6000 C:\WINDOWS\system32\DRIVERS\raspppoe.sys 45056 bytes (Microsoft Corporation, RAS PPPoE mini-port/call-manager driver)
0xF8676000 C:\WINDOWS\system32\drivers\NAV\1206000.01D\SRTSPX.SYS 45056 bytes (Symantec Corporation, Symantec AutoProtect)
0xF8536000 isapnp.sys 40960 bytes (Microsoft Corporation, PNP ISA Bus Driver)
0xF8626000 C:\WINDOWS\System32\Drivers\NDProxy.SYS 40960 bytes (Microsoft Corporation, NDIS Proxy)
0xF8606000 C:\WINDOWS\system32\DRIVERS\termdd.sys 40960 bytes (Microsoft Corporation, Terminal Server Driver)
0xF15D7000 C:\WINDOWS\System32\Drivers\BlackBox.SYS 36864 bytes (RKU Driver)
0xF8586000 disk.sys 36864 bytes (Microsoft Corporation, PnP Disk Driver)
0xF8656000 C:\WINDOWS\system32\DRIVERS\HIDCLASS.SYS 36864 bytes (Microsoft Corporation, Hid Class Library)
0xF8736000 C:\WINDOWS\system32\DRIVERS\intelppm.sys 36864 bytes (Microsoft Corporation, Processor Device Driver)
0xF85F6000 C:\WINDOWS\system32\DRIVERS\msgpc.sys 36864 bytes (Microsoft Corporation, MS General Packet Classifier)
0xF8666000 C:\WINDOWS\system32\DRIVERS\netbios.sys 36864 bytes (Microsoft Corporation, NetBIOS interface driver)
0xF85A6000 PxHelp20.sys 36864 bytes (Sonic Solutions, Px Engine Device Driver for Windows 2000/XP)
0xF8696000 C:\WINDOWS\system32\DRIVERS\wanarp.sys 36864 bytes (Microsoft Corporation, MS Remote Access and Routing ARP Driver)
0xF88F6000 C:\WINDOWS\System32\Drivers\Modem.SYS 32768 bytes (Microsoft Corporation, Modem Device Driver)
0xF87EE000 C:\WINDOWS\System32\Drivers\Npfs.SYS 32768 bytes (Microsoft Corporation, NPFS Driver)
0xF88CE000 C:\WINDOWS\system32\DRIVERS\usbehci.sys 32768 bytes (Microsoft Corporation, EHCI eUSB Miniport Driver)
0xF892E000 C:\WINDOWS\system32\DRIVERS\HIDPARSE.SYS 28672 bytes (Microsoft Corporation, Hid Parsing Library)
0xF87FE000 C:\WINDOWS\system32\DRIVERS\NuidFltr.sys 28672 bytes (Microsoft Corporation, Filter Driver for Microsoft Hardware HID Non-User Input Data)
0xF87B6000 C:\WINDOWS\System32\Drivers\PCIIDEX.SYS 28672 bytes (Microsoft Corporation, PCI IDE Bus Driver Extension)
0xF88EE000 C:\WINDOWS\system32\DRIVERS\GEARAspiWDM.sys 24576 bytes (GEAR Software Inc., CD DVD Filter)
0xF88DE000 C:\WINDOWS\system32\DRIVERS\kbdclass.sys 24576 bytes (Microsoft Corporation, Keyboard Class Driver)
0xF88E6000 C:\WINDOWS\system32\DRIVERS\mouclass.sys 24576 bytes (Microsoft Corporation, Mouse Class Driver)
0xF88D6000 C:\WINDOWS\system32\DRIVERS\RTL8139.SYS 24576 bytes (Realtek Semiconductor Corporation, Realtek RTL8139 NDIS 5.0 Driver)
0xF88C6000 C:\WINDOWS\system32\DRIVERS\usbuhci.sys 24576 bytes (Microsoft Corporation, UHCI USB Miniport Driver)
0xF87DE000 C:\WINDOWS\System32\drivers\vga.sys 24576 bytes (Microsoft Corporation, VGA/Super VGA Video Driver)
0xF87E6000 C:\WINDOWS\System32\Drivers\Msfs.SYS 20480 bytes (Microsoft Corporation, Mailslot driver)
0xF87BE000 PartMgr.sys 20480 bytes (Microsoft Corporation, Partition Manager)
0xF890E000 C:\WINDOWS\system32\DRIVERS\ptilink.sys 20480 bytes (Parallel Technologies, Inc., Parallel Technologies DirectParallel IO Library)
0xF8916000 C:\WINDOWS\system32\DRIVERS\raspti.sys 20480 bytes (Microsoft Corporation, PTI DirectParallel® mini-port/call-manager driver)
0xF88FE000 C:\WINDOWS\system32\DRIVERS\TDI.SYS 20480 bytes (Microsoft Corporation, TDI Wrapper)
0xF8816000 C:\WINDOWS\System32\watchdog.sys 20480 bytes (Microsoft Corporation, Watchdog Driver)
0xF894E000 C:\WINDOWS\system32\DRIVERS\BATTC.SYS 16384 bytes (Microsoft Corporation, Battery Class Driver)
0xF81C4000 C:\WINDOWS\system32\DRIVERS\CmBatt.sys 16384 bytes (Microsoft Corporation, Control Method Battery Driver)
0xF818A000 C:\WINDOWS\system32\DRIVERS\mssmbios.sys 16384 bytes (Microsoft Corporation, System Management BIOS Driver)
0xF2F72000 C:\WINDOWS\system32\DRIVERS\ndisuio.sys 16384 bytes (Microsoft Corporation, NDIS User mode I/O Driver)
0xF8952000 ACPIEC.sys 12288 bytes (Microsoft Corporation, ACPI Embedded Controller Driver)
0xF8946000 C:\WINDOWS\system32\BOOTVID.dll 12288 bytes (Microsoft Corporation, VGA Boot Driver)
0xF894A000 compbatt.sys 12288 bytes (Microsoft Corporation, Composite Battery Driver)
0xF7BCA000 C:\WINDOWS\System32\drivers\Dxapi.sys 12288 bytes (Microsoft Corporation, DirectX API Driver)
0xF8A02000 C:\WINDOWS\system32\DRIVERS\hidusb.sys 12288 bytes (Microsoft Corporation, USB Miniport Driver for Input Devices)
0xF8A32000 C:\WINDOWS\system32\DRIVERS\mouhid.sys 12288 bytes (Microsoft Corporation, HID Mouse Filter Driver)
0xF89DE000 C:\WINDOWS\system32\DRIVERS\ndistapi.sys 12288 bytes (Microsoft Corporation, NDIS 3.0 connection wrapper driver)
0xF8A0E000 C:\WINDOWS\system32\DRIVERS\rasacd.sys 12288 bytes (Microsoft Corporation, RAS Automatic Connection Driver)
0xF8A86000 C:\WINDOWS\System32\Drivers\Beep.SYS 8192 bytes (Microsoft Corporation, BEEP Driver)
0xF8A3C000 dmload.sys 8192 bytes (Microsoft Corp., Veritas Software., NT Disk Manager Startup Driver)
0xF8A90000 C:\WINDOWS\System32\Drivers\dump_WMILIB.SYS 8192 bytes
0xF8A84000 C:\WINDOWS\System32\Drivers\Fs_Rec.SYS 8192 bytes (Microsoft Corporation, File System Recognizer Driver)
0xF8A3A000 intelide.sys 8192 bytes (Microsoft Corporation, Intel PCI IDE Driver)
0xF8A36000 C:\WINDOWS\system32\KDCOM.DLL 8192 bytes (Microsoft Corporation, Kernel Debugger HW Extension DLL)
0xF8A88000 C:\WINDOWS\System32\Drivers\mnmdd.SYS 8192 bytes (Microsoft Corporation, Frame buffer simulator)
0xF8AA0000 C:\WINDOWS\System32\Drivers\ParVdm.SYS 8192 bytes (Microsoft Corporation, VDM Parallel Driver)
0xF8A8A000 C:\WINDOWS\System32\DRIVERS\RDPCDD.sys 8192 bytes (Microsoft Corporation, RDP Miniport)
0xF8A70000 C:\WINDOWS\system32\DRIVERS\serscan.sys 8192 bytes (Microsoft Corporation, Serial Imaging Device Driver)
0xF8A72000 C:\WINDOWS\system32\DRIVERS\swenum.sys 8192 bytes (Microsoft Corporation, Plug and Play Software Device Enumerator)
0xF8A7C000 C:\WINDOWS\system32\DRIVERS\USBD.SYS 8192 bytes (Microsoft Corporation, Universal Serial Bus Driver)
0xF8A38000 C:\WINDOWS\system32\DRIVERS\WMILIB.SYS 8192 bytes (Microsoft Corporation, WMILIB WMI support library Dll)
0xF8BFD000 C:\WINDOWS\system32\DRIVERS\audstub.sys 4096 bytes (Microsoft Corporation, AudStub Driver)
0xF8B04000 C:\WINDOWS\System32\drivers\dxgthk.sys 4096 bytes (Microsoft Corporation, DirectX Graphics Driver Thunk)
0xF8C5D000 C:\WINDOWS\System32\Drivers\Null.SYS 4096 bytes (Microsoft Corporation, NULL Driver)
0xF8AFF000 C:\WINDOWS\system32\DRIVERS\OPRGHDLR.SYS 4096 bytes (Microsoft Corporation, ACPI Operation Registration Driver)
==============================================
>Stealth
==============================================

#4 quietman7

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Posted 01 August 2011 - 08:43 AM

. i continually get popups from norton antivirus (the newest one) concerning "an intrusion attempt by such & such ip address was blocked"

By that I take it you mean Norton Internet Security which includes firewall protection.


If your firewall provides an alert which indicates it has blocked access to a port or detected an intrusion attempt that does not necessarily mean your system has been compromised. These alert messages are a response to unrequested traffic from remote computers (an external host) to access a port on your computer.
Alerts are often classified by the network port they arrive on, and they allow the firewall to notify you in various ways about possible penetration and intrusion attempts on your computer. Even if the port is open, the alert message indicates that your firewall has blocked the attempt to access it.What are TCP and UDP ports
TCP/UDP Ports Explained
It is not unusual for a firewall and some anti-virus programs to provide numerous alerts regarding probing and intrustion attempts to access your computer. Botnets and Zombie computers scour the net, randomly scanning a block of IP addresses, searching for vulnerable ports - commonly probed ports and make repeated attempts to access them. Hackers use "port scanning", a popular reconnaissance technique, to search for vulnerable computers with open ports using IP addresses or a group of random IP address ranges so they can break in and install malicious programs. Your firewall is doing its job by blocking this kind of traffic and alerting you about these intrusion attempts. However, not all unrequested traffic is malevolent. Even your ISP will send out regular checks to see if your computer is still there, so you may need to investigate an attempted intrusion. If your computer is sending out large amounts of data, that can indicate that your system may have a Trojan. For more information about Port Scanning, please refer to Port Scanning Basic Techniques.

If the alerts become too annoying, you should be able to go into your firewall/anti-virus settings and lower or turn them off (Hide notification messages)
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#5 jds923

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Posted 01 August 2011 - 06:09 PM

thank you so much! i truly appreciate it!!

#6 quietman7

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Posted 01 August 2011 - 07:32 PM

You're welcome on behalf of the Bleeping Computer community.
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