LAN Connection flooded with packets to DC

Posted on 2008-11-17
Last Modified: 2013-11-22
Found some sort of trojan on 3 different computers that sends/receives packets constantly.  Did a netstat and it appears to look for the domain controllers and flood only those IPs with packets.  The traffic is not enough to bring down the entire network, but it is enough so the local user cannot access any websites or email in windows.  Did a ping test and it works fine to local servers and the internet.  I haven't been able to find any information as to which trojan this is.  The remedy that I have used up to know is to reinstall WinXP, but this takes time.  The odd thing is, which could be coincidence, is that on all 3 computers I recently installed the latest version of the AT&T Communication Manager (6.9.115)  The activity described above occurs a few days after installing the AT&T software.

I have run a full virus scan using Kaspersky and it didn't find anything.  Also ran Adaware which found nothing.  Hijack this didn't have anything that looked out of the ordinary.  I did find a trojan on a flash drive used by the user in a system.exe file.

Thanks in advance.
Question by:balmon

    Author Comment

    I've reset the Windows firewall and TCP/IP using Netsh command.  When I hook up to the LAN, immediately the LAN activity lights up and connects to my DC on these ports
    IP Address : Port
    TCP DC:microsoft-ds
    TCP DC:epmap

    In TCPView the process appears as System:4 and when I try to kill it, it does not die.

    Author Comment

    Hijack This log

    Logfile of Trend Micro HijackThis v2.0.2
    Scan saved at 2:09:00 PM, on 11/17/2008
    Platform: Windows XP SP2 (WinNT 5.01.2600)
    MSIE: Internet Explorer v7.00 (7.00.6000.16735)
    Boot mode: Normal

    Running processes:
    C:\Program Files\Intel\Wireless\Bin\S24EvMon.exe
    C:\Program Files\Common Files\LogiShrd\LVMVFM\LVPrcSrv.exe
    C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
    C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 6.0 for Windows Workstations\avp.exe
    C:\Program Files\Bonjour\mDNSResponder.exe
    C:\Program Files\Intel\Wireless\Bin\EvtEng.exe
    C:\Program Files\Kaspersky Lab\NetworkAgent\klnagent.exe
    C:\Program Files\Common Files\LogiShrd\LVCOMSER\LVComSer.exe
    C:\Program Files\Intel\Wireless\Bin\RegSrvc.exe
    C:\Program Files\SigmaTel\C-Major Audio\DellXPM_5515v131\WDM\StacSV.exe
    C:\Program Files\Intel\Wireless\Bin\WLKeeper.exe
    C:\Program Files\Intel\Wireless\bin\ZCfgSvc.exe
    C:\Program Files\Intel\Wireless\Bin\ifrmewrk.exe
    C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
    C:\Program Files\SigmaTel\C-Major Audio\WDM\stsystra.exe
    C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 6.0 for Windows Workstations\avp.exe
    C:\Program Files\Java\jre1.6.0_07\bin\jusched.exe
    C:\Program Files\iTunes\iTunesHelper.exe
    C:\Program Files\Common Files\LogiShrd\LComMgr\Communications_Helper.exe
    C:\Program Files\Logitech\QuickCam\Quickcam.exe
    C:\Program Files\Tracker Software\PDF-XChange 3\pdfSaver\pdfSaver3.exe
    C:\Program Files\iPod\bin\iPodService.exe
    C:\Program Files\Common Files\Logishrd\LQCVFX\COCIManager.exe
    C:\Program Files\Lavasoft\Ad-Aware\aawservice.exe
    C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

    R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = about:blank
    R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL =
    R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL =
    R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page =
    R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page =
    O2 - BHO: AcroIEHelperStub - {18DF081C-E8AD-4283-A596-FA578C2EBDC3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelperShim.dll
    O2 - BHO: Skype add-on (mastermind) - {22BF413B-C6D2-4d91-82A9-A0F997BA588C} - C:\Program Files\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
    O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_07\bin\ssv.dll
    O4 - HKLM\..\Run: [IntelZeroConfig] "C:\Program Files\Intel\Wireless\bin\ZCfgSvc.exe"
    O4 - HKLM\..\Run: [IntelWireless] "C:\Program Files\Intel\Wireless\Bin\ifrmewrk.exe" /tf Intel PROSet/Wireless
    O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
    O4 - HKLM\..\Run: [nwiz] nwiz.exe /installquiet
    O4 - HKLM\..\Run: [NVHotkey] rundll32.exe nvHotkey.dll,Start
    O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
    O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
    O4 - HKLM\..\Run: [SigmatelSysTrayApp] %ProgramFiles%\SigmaTel\C-Major Audio\WDM\stsystra.exe
    O4 - HKLM\..\Run: [AVP] "C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 6.0 for Windows Workstations\avp.exe"
    O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 9.0\Reader\Reader_sl.exe"
    O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.6.0_07\bin\jusched.exe"
    O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
    O4 - HKLM\..\Run: [iTunesHelper] "C:\Program Files\iTunes\iTunesHelper.exe"
    O4 - HKLM\..\Run: [LogitechCommunicationsManager] "C:\Program Files\Common Files\LogiShrd\LComMgr\Communications_Helper.exe"
    O4 - HKLM\..\Run: [LogitechQuickCamRibbon] "C:\Program Files\Logitech\QuickCam\Quickcam.exe" /hide
    O4 - HKLM\..\Run: [AT&T Communication Manager] "C:\Program Files\AT&T\Communication Manager\ATTCM.exe" -a
    O4 - HKCU\..\Run: [pdfSaver3] "C:\Program Files\Tracker Software\PDF-XChange 3\pdfSaver\pdfSaver3.exe"
    O4 - HKCU\..\Run: [GoToMeeting] C:\Program Files\Citrix\GoToMeeting\198\g2mstart.exe "/Trigger RunAtLogon"
    O4 - HKCU\..\Run: [Skype] "C:\Program Files\Skype\Phone\Skype.exe" /nosplash /minimized
    O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
    O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office12\EXCEL.EXE/3000
    O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_07\bin\ssv.dll
    O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_07\bin\ssv.dll
    O9 - Extra button: Web Anti-Virus statistics - {1F460357-8A94-4D71-9CA3-AA4ACF32ED8E} - C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 6.0 for Windows Workstations\SCIEPlgn.dll
    O9 - Extra button: Skype - {77BF5300-1474-4EC7-9980-D32B190E9B07} - C:\Program Files\Skype\Toolbars\Internet Explorer\SkypeIEPlugin.dll
    O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\Office12\REFIEBAR.DLL
    O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
    O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
    O10 - Unknown file in Winsock LSP: bmnet.dll
    O10 - Unknown file in Winsock LSP: bmnet.dll
    O10 - Unknown file in Winsock LSP: bmnet.dll
    O16 - DPF: {01A88BB1-1174-41EC-ACCB-963509EAE56B} (SysProWmi Class) -
    O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) -
    O17 - HKLM\System\CCS\Services\Tcpip\Parameters: Domain =
    O17 - HKLM\Software\..\Telephony: DomainName =
    O17 - HKLM\System\CCS\Services\Tcpip\..\{A0A4B4CE-1547-4180-B8C4-271C2A823140}: Domain =
    O17 - HKLM\System\CS1\Services\Tcpip\Parameters: Domain =
    O17 - HKLM\System\CS1\Services\Tcpip\Parameters: SearchList =
    O17 - HKLM\System\CS2\Services\Tcpip\Parameters: Domain =
    O17 - HKLM\System\CS2\Services\Tcpip\Parameters: SearchList =
    O17 - HKLM\System\CCS\Services\Tcpip\Parameters: SearchList =
    O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\COMMON~1\Skype\SKYPE4~1.DLL
    O23 - Service: Lavasoft Ad-Aware Service (aawservice) - Lavasoft - C:\Program Files\Lavasoft\Ad-Aware\aawservice.exe
    O23 - Service: Apple Mobile Device - Apple Inc. - C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
    O23 - Service: AT&T RcAppSvc (ATTRcAppSvc) - PCTEL - C:\Program Files\AT&T\Communication Manager\RcAppSvc.exe
    O23 - Service: Kaspersky Anti-Virus 6.0 (AVP) - Kaspersky Lab - C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 6.0 for Windows Workstations\avp.exe
    O23 - Service: Bonjour Service - Apple Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
    O23 - Service: Intel(R) PROSet/Wireless Event Log (EvtEng) - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\EvtEng.exe
    O23 - Service: iPod Service - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe
    O23 - Service: Kaspersky Network Agent (klnagent) - Kaspersky Lab - C:\Program Files\Kaspersky Lab\NetworkAgent\klnagent.exe
    O23 - Service: LVCOMSer - Logitech Inc. - C:\Program Files\Common Files\LogiShrd\LVCOMSER\LVComSer.exe
    O23 - Service: Process Monitor (LVPrcSrv) - Logitech Inc. - C:\Program Files\Common Files\LogiShrd\LVMVFM\LVPrcSrv.exe
    O23 - Service: LVSrvLauncher - Logitech Inc. - C:\Program Files\Common Files\LogiShrd\SrvLnch\SrvLnch.exe
    O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
    O23 - Service: Intel(R) PROSet/Wireless Registry Service (RegSrvc) - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\RegSrvc.exe
    O23 - Service: Intel(R) PROSet/Wireless Service (S24EventMonitor) - Intel Corporation  - C:\Program Files\Intel\Wireless\Bin\S24EvMon.exe
    O23 - Service: SigmaTel Audio Service (STacSV) - SigmaTel, Inc. - C:\Program Files\SigmaTel\C-Major Audio\DellXPM_5515v131\WDM\StacSV.exe
    O23 - Service: Intel(R) PROSet/Wireless SSO Service (WLANKEEPER) - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\WLKeeper.exe

    End of file - 9093 bytes

    Accepted Solution

    I removed the AT&T Communication Manager and 2 instances of Driver Installer in Ad/Remove programs.  Rebooted and it appears the problem as gone away.
    LVL 9

    Expert Comment

    Balman, you may also use the "netstat -an" command to manually check for rogue I/O activity.
    LVL 9

    Expert Comment

    Opps forgot to mention - you should check the results from your HijackThis posting at

    LVL 9

    Expert Comment

    (self) points assigned?

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