"BackDoor-DOB!mem" wtf is it and what can I do to remove it?

[[BTF]Sigma]

I've googled and all I get is a thread about it in french and the McAfee info with no removal tips.

It has itself embedded in svchost.exe and it sometimes is detected by my scans and sometimes not. What I'd like is to be able to remove it because it feels like the uncle that just hangs around and acts all insignificant then BAM!!! he's got my baby and is entering it through the back door.

Halps, I needs it.

[[BTF]Sigma]

Jager....I'm looking for your help

[The Happy Friar]

already ran AV & anti-spyware stuff in safe mode?

[[BTF]Sigma]

Running...will edit post upon completion


** No luck...did not show up on a safemode scan.

Just typing this and all the emoticons are stuttering and my key-inputs get delayed from showing up on the screen occasionally.

[[BTF]Sigma]

I'll try a HIJACK THIS scan and see if I can catch it.

[Whirlingdervish]

I spent a bit looking around for info on this, when I first got in to work this mornin, but I didn't find much that you haven't seen already.

I'll keep my eyes peeled tho and run a few more searches..

 

[X'tyfe]

hmm dont like the sound of that :O

right click your clock, and goto your task manager
and goto the processes tab, and check to see if anything is eating up all your cpu and/or ram

EDIT: in svchost.exe? damn. beats me then

[reaper]

you may want to see if there is a service installed that is blatenly not wanted.

start>>run>>cmd>>msconfig>>Services
check hide Microsoft services, sort by running, and see if anything is obvious.  sometimes it can be more difficult to remove than that, for instance explorer.exe being modified

can you post the results of HiJackthis

[RRBM [NL]]

Also scan for rogue scanners with roguefix. You can find it at http://www.internetinspiration.co.uk/roguefix.htm .

[[BTF]Sigma]

Under Services:

##Id_string1.6844F930_1628_4223_B5CC_5BB94B879762##

^^Never seen this before^^  from an unknown manufacturer and everything else has an actual title, like: "McAfee Services"

I ran the smitfraud fix already RRBM [NL] in safe mode and I don't think it's a fakealert variant.

As for my Hijack this log...

Logfile of HijackThis v1.99.1
Scan saved at 5:26:15 PM, on 4/29/2008
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16640)

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\TGTSoft\StyleXP\StyleXPService.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
C:\Program Files\Bonjour\mDNSResponder.exe
C:\WINDOWS\System32\svchost.exe
C:\PROGRA~1\McAfee\MSC\mcmscsvc.exe
c:\PROGRA~1\COMMON~1\mcafee\mna\mcnasvc.exe
c:\PROGRA~1\COMMON~1\mcafee\mcproxy\mcproxy.exe
C:\Program Files\McAfee\VirusScan\McShield.exe
C:\Program Files\McAfee\MPF\MPFSrv.exe
C:\Program Files\McAfee\MSK\MskSrver.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\PnkBstrA.exe
C:\Program Files\SiteAdvisor\6253\SAService.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\CTHELPER.EXE
C:\Program Files\McAfee.com\Agent\mcagent.exe
C:\Program Files\SiteAdvisor\6253\SiteAdv.exe
C:\Program Files\Razer\DeathAdder\razerhid.exe
C:\Program Files\Java\jre1.6.0_05\bin\jusched.exe
C:\Program Files\Adobe\Acrobat 8.0\Acrobat\Acrotray.exe
C:\Program Files\Microsoft Xbox 360 Accessories\XboxStat.exe
C:\Program Files\iTunes\iTunesHelper.exe
C:\WINDOWS\system32\RUNDLL32.EXE
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\TGTSoft\StyleXP\StyleXP.exe
C:\Program Files\DAEMON Tools Lite\daemon.exe
C:\Program Files\Razer\DeathAdder\razertra.exe
C:\Program Files\Razer\DeathAdder\razerofa.exe
C:\Program Files\iPod\bin\iPodService.exe
C:\Program Files\Common Files\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
C:\Program Files\Opera\Opera.exe
C:\PROGRA~1\McAfee\VIRUSS~1\mcsysmon.exe
C:\WINDOWS\PCHealth\HelpCtr\Binaries\MSConfig.exe
C:\Program Files\HijackThis\HijackThis.exe

R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: ContributeBHO Class - {074C1DC5-9320-4A9A-947D-C042949C6216} - C:\Program Files\Adobe\/Adobe Contribute CS3/contributeieplugin.dll
O2 - BHO: (no name) - {089FD14D-132B-48FC-8861-0048AE113215} - C:\Program Files\SiteAdvisor\6253\SiteAdv.dll
O2 - BHO: McAntiPhishingBHO - {377C180E-6F0E-4D4C-980F-F45BD3D40CF4} - c:\PROGRA~1\mcafee\msk\mcapbho.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_05\bin\ssv.dll
O2 - BHO: scriptproxy - {7DB2D5A0-7241-4E79-B68D-6309F01C5231} - C:\Program Files\McAfee\VirusScan\scriptsn.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Windows Live Sign-in Helper - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Adobe PDF Conversion Toolbar Helper - {AE7CD045-E861-484f-8273-0445EE161910} - C:\Program Files\Adobe\Acrobat 8.0\Acrobat\AcroIEFavClient.dll
O2 - BHO: TGTSoft Explorer Toolbar Changer - {C333CF63-767F-4831-94AC-E683D962C63C} - C:\Program Files\TGTSoft\StyleXP\TGT_BHO.dll
O3 - Toolbar: McAfee SiteAdvisor - {0BF43445-2F28-4351-9252-17FE6E806AA0} - C:\Program Files\SiteAdvisor\6253\SiteAdv.dll
O3 - Toolbar: Adobe PDF - {47833539-D0C5-4125-9FA8-0819E2EAAC93} - C:\Program Files\Adobe\Acrobat 8.0\Acrobat\AcroIEFavClient.dll
O3 - Toolbar: Contribute Toolbar - {517BDDE4-E3A7-4570-B21E-2B52B6139FC7} - C:\Program Files\Adobe\/Adobe Contribute CS3/contributeieplugin.dll
O4 - HKLM\..\Run: [CTHelper] CTHELPER.EXE
O4 - HKLM\..\Run: [CTxfiHlp] CTXFIHLP.EXE
O4 - HKLM\..\Run: [mcagent_exe] C:\Program Files\McAfee.com\Agent\mcagent.exe /runkey
O4 - HKLM\..\Run: [SiteAdvisor] C:\Program Files\SiteAdvisor\6253\SiteAdv.exe
O4 - HKLM\..\Run: [McENUI] C:\PROGRA~1\McAfee\MHN\McENUI.exe /hide
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [DeathAdder] C:\Program Files\Razer\DeathAdder\razerhid.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.6.0_05\bin\jusched.exe"
O4 - HKLM\..\Run: [Acrobat Assistant 8.0] "C:\Program Files\Adobe\Acrobat 8.0\Acrobat\Acrotray.exe"
O4 - HKLM\..\Run: [Adobe_ID0EYTHM] C:\PROGRA~1\COMMON~1\Adobe\ADOBEV~1\Server\bin\VERSIO~2.EXE
O4 - HKLM\..\Run: [XboxStat] "c:\Program Files\Microsoft Xbox 360 Accessories\XboxStat.exe" silentrun
O4 - HKLM\..\Run: [WinampAgent] "C:\Program Files\Winamp\winampa.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: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [STYLEXP] C:\Program Files\TGTSoft\StyleXP\StyleXP.exe -Hide
O4 - HKCU\..\Run: [DAEMON Tools Lite] "C:\Program Files\DAEMON Tools Lite\daemon.exe" -autorun
O8 - Extra context menu item: Append to existing PDF - res://C:\Program Files\Adobe\Acrobat 8.0\Acrobat\AcroIEFavClient.dll/AcroIEAppend.html
O8 - Extra context menu item: Convert link target to Adobe PDF - res://C:\Program Files\Adobe\Acrobat 8.0\Acrobat\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: Convert link target to existing PDF - res://C:\Program Files\Adobe\Acrobat 8.0\Acrobat\AcroIEFavClient.dll/AcroIEAppend.html
O8 - Extra context menu item: Convert selected links to Adobe PDF - res://C:\Program Files\Adobe\Acrobat 8.0\Acrobat\AcroIEFavClient.dll/AcroIECaptureSelLinks.html
O8 - Extra context menu item: Convert selected links to existing PDF - res://C:\Program Files\Adobe\Acrobat 8.0\Acrobat\AcroIEFavClient.dll/AcroIEAppendSelLinks.html
O8 - Extra context menu item: Convert selection to Adobe PDF - res://C:\Program Files\Adobe\Acrobat 8.0\Acrobat\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: Convert selection to existing PDF - res://C:\Program Files\Adobe\Acrobat 8.0\Acrobat\AcroIEFavClient.dll/AcroIEAppend.html
O8 - Extra context menu item: Convert to Adobe PDF - res://C:\Program Files\Adobe\Acrobat 8.0\Acrobat\AcroIEFavClient.dll/AcroIECapture.html
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_05\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.6.0_05\bin\ssv.dll
O9 - Extra button: Blog This - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra 'Tools' menuitem: &Blog This in Windows Live Writer - {219C3416-8CB2-491a-A3C7-D9FCDDC9D600} - C:\Program Files\Windows Live\Writer\WriterBrowserExtension.dll
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O10 - Unknown file in Winsock LSP: c:\program files\bonjour\mdnsnsp.dll
O11 - Options group: [INTERNATIONAL] International*
O15 - Trusted Zone: http://*.mcafee.com
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://www.update.microsoft.com/microsoftupdate/v6/V5Controls/en/x86/client/muweb_site.cab?1202877151033
O18 - Protocol: livecall - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\WI1F86~1\MESSEN~1\MSGRAP~1.DLL
O18 - Protocol: msnim - {828030A1-22C1-4009-854F-8E305202313F} - C:\PROGRA~1\WI1F86~1\MESSEN~1\MSGRAP~1.DLL
O18 - Protocol: siteadvisor - {3A5DC592-7723-4EAA-9EE6-AF4222BCF879} - C:\Program Files\SiteAdvisor\6253\SiteAdv.dll
O18 - Protocol: wlmailhtml - {03C514A3-1EFB-4856-9F99-10D7BE1653C0} - C:\Program Files\Windows Live\Mail\mailcomm.dll
O21 - SSODL: WPDShServiceObj - {AAA288BA-9A4C-45B0-95D7-94D524869DB5} - C:\WINDOWS\system32\WPDShServiceObj.dll
O23 - Service: Adobe Version Cue CS3 - Unknown owner - C:\Program Files\Common Files\Adobe\Adobe Version Cue CS3\Server\bin\VersionCueCS3.exe" -win32service (file missing)
O23 - Service: Apple Mobile Device - Apple, Inc. - C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
O23 - Service: ##Id_String1.6844F930_1628_4223_B5CC_5BB94B879762## (Bonjour Service) - Apple Computer, Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: FLEXnet Licensing Service - Macrovision Europe Ltd. - C:\Program Files\Common Files\Macrovision Shared\FLEXnet Publisher\FNPLicensingService.exe
O23 - Service: iPod Service - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: McAfee Services (mcmscsvc) - McAfee, Inc. - C:\PROGRA~1\McAfee\MSC\mcmscsvc.exe
O23 - Service: McAfee Network Agent (McNASvc) - McAfee, Inc. - c:\PROGRA~1\COMMON~1\mcafee\mna\mcnasvc.exe
O23 - Service: McAfee Scanner (McODS) - McAfee, Inc. - C:\PROGRA~1\McAfee\VIRUSS~1\mcods.exe
O23 - Service: McAfee Proxy Service (McProxy) - McAfee, Inc. - c:\PROGRA~1\COMMON~1\mcafee\mcproxy\mcproxy.exe
O23 - Service: McAfee Real-time Scanner (McShield) - McAfee, Inc. - C:\Program Files\McAfee\VirusScan\McShield.exe
O23 - Service: McAfee SystemGuards (McSysmon) - McAfee, Inc. - C:\PROGRA~1\McAfee\VIRUSS~1\mcsysmon.exe
O23 - Service: McAfee Personal Firewall Service (MpfService) - McAfee, Inc. - C:\Program Files\McAfee\MPF\MPFSrv.exe
O23 - Service: McAfee Anti-Spam Service (MSK80Service) - McAfee, Inc. - C:\Program Files\McAfee\MSK\MskSrver.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: PnkBstrA - Unknown owner - C:\WINDOWS\system32\PnkBstrA.exe
O23 - Service: SiteAdvisor Service - Unknown owner - C:\Program Files\SiteAdvisor\6253\SAService.exe
O23 - Service: StyleXPService - Unknown owner - C:\Program Files\TGTSoft\StyleXP\StyleXPService.exe

[[BTF]Sigma]

hehe looks like that weird string is from Apples Bonjour service....sneaky frenchies!!! :shakesfist:

[reaper]

it can be hard.  it would be nice if a search revealed the fix , or anti-virus software.  you would think one other would, the odds are in your favor.  sometimes just hex editing the virus will get it by scanners .

here's a few things you could try:
during the problem, right click on svchost in task manager, and run process explorer http://technet.microsoft.com/en-us/sysinternals/bb896653.aspx and click on services, and then see what is eating the cpu during your problem.

you could also turn off some services and deduce which is the problem service based on symptoms of your problem disappearing. safe mode may help you by seeing what is off during safe mode (presumably there is no problem in safe mode).

when you find the problem, you could replace the dll in question, run a checksum against it, and verify it's different first.  if the scan is right this is probably what you should do, and the former (run anti-viruses, and search the web for a specific fix) is the most effective solution.

[[BTF]Sigma]

I managed to recall a little of the basic french I had learnt in school and did my best to translate what the fix was found on that French language site. They recommended turning off system restore.

I have a 250g drive that had 12% used to house the restoration files. So I disabled that and the problem is less noticable but is still there. I'll restart in safe mode and try your advice after dinner. Thanks.

[QwazyWabbit]

svchost.exe is the program that spawns services in Windows. (the equivalent of daemons in *nix world) Svchost.exe is the service starting service. He looks at the installed services list in the registry and starts them all up.

McAfee is sadly lacking any documentation about your Trojan. It was discovered only 1 month ago and they have a detection profile for it but it looks like they don't have a removal process or any technical information about it. I am not sure what the "mem" designation means in McAfeesh but it might mean memory resident. That would mean it's being loaded and their memory scanner found it but not the executable file. It could be deposited from a malicious web page.

Use the Process Explorer that Reaper listed. That is an excellent tool for looking at processes in the system. In the tree view of processes, your Trojan will be lurking as a child of one of the many svchost.exe processes. If it is packed with one of the many packers used to hide these kinds of programs it will be purple and stand out like a sore thumb. It will also have an unknown publisher and won't "Verify" with a digital signature. Use P. Exp. to find the executable. It will usually be in an odd-ball place, masquerading as a Windows/system32 file but not in the proper directory. In really bad infections it can be in the Windows/system32 folder and they can be hard to kill.

Kill the process in P. Exp. and immediately delete the file. Beware, some trojans have guards that are also running, usually as DLL's that will restore the file and the trojan process as fast as you can kill it. Safe mode can sometimes get past this. You always want to identify the executable file that is your Trojan.

Another good tool is Autoruns from the Sysinternals.com (now Microsoft) This one lists the registry settings that initiate the processes at boot. You can sometimes kill the startup of your Trojan directly at the registry, then kill the file.

CCleaner is another good tool.

Activate Windows Defender and run a scan. Believe it or not, it's actually quite a good tool for getting rid of this kind of junk. It will also run compatibly with other A-V products.

Get rid of McAfee, it's bloatware as bad as Symantec.
These products are so bloated they have become exploitable.

Get NOD32 from Eset. It's still an efficient A-V product without bloat.
You can even use their free trial to get rid of this thing once you get rid of McAfee.

If you have the executable identified upload it to www.virustotal.com for scanning and see if it goes by another name.

[Whirlingdervish]

I don't see anything that's obvious after lookin over that and checkin any of the entries that looked funky to me.
you might want to try this forum I found, and post this over there too:
http://www.bleepingcomputer.com/forums/