jwgkvsq.vmx - Conficker virus manual removal
Intro
Well this is one of the new emerging popular virus. It has spread rapidly, and most of your computers are infected. Conficker spreads via the USB pendrive along with the autorun.inf
or via network by exploiting bugs in the Network Stack on Windows systems.
Skip to Manual Removal steps.
Spreading via USB Drives
Conficker spreads on USB Drives by creating an autorun.inf,
A folder structure
RECYCLER\S-5-3-42-2819952290-8240758988-879315005-3665\
with
jwgkvsq.vmx
The file is a DLL file, which is executed by the obfuscated autorun.inf.
The DLL file is loaded with RunDLL
[AUTorUN
icon=%syStEmrOot%\sySTEM32\sHELL32.Dll,4
shelLExECUte=RuNdLl32.EXE.\RECYCLER\S-5-3-42-2819952290-8240758988-879315005-3665\jwgkvsq.vmx,ahaezedrn
useAuTopLAY=1
The presence of conficker can be detected by looking at the ICON of the USB Pen drive. If it is a folder icon, then its almost sure that the drive is infected with "conficker".
Manual Detection and Removal
Conficker disables the Background Intelligent Transfer Service (BITS) and Windows Automatic Updates. So If you find these services disabled, be alert. (To checkout what services are running and their statuses Run > services.msc.
Follow these steps to detect and remove Conficker virus:
Run regedit.exe registry editor
Goto HKEY_LOCAL_MACHINE\Software\Microsoft\WindowsNT\CurrentVersion\SvcHost\netsvcs
Double click the key to see if there is a random value at its end.
Note the "zbtthjd" at the end, this is the virus. A list of valid entries in the field (from Microsoft) is given below to help you find the random string. (Usually at the end).AppMgmt
AudioSrv
Browser
CryptSvc
DMServer
EventSystem
HidServ
Ias
Iprip
Irmon
LanmanServer
LanmanWorkstation
Messenger
Netman
Nla
Ntmssvc
NWCWorkstation
Nwsapagent
Rasauto
Rasman
Remoteaccess
Sacsvr
Schedule
Seclogon
SENS
Sharedaccess
Themes
TrkWks
TrkSvr
W32Time
WZCSVC
Wmi
WmdmPmSp
winmgmt
wuauserv
BITS
ShellHWDetection
uploadmgr
WmdmPmSN
xmlprov
AeLookupSvc
helpsvc- Note the random string. (in this case "zbtthjd")
- Now goto HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\zbtthjd\Parameters, note the ServiceDLL Parameter, It would be something like c:\windows\system32\<randomstring>.dll
- Take a Command prompt and run
svchost -k netsvcs
. This should stop the netsvcs and the virus. - Try deleting the DLL file or else rename the DLL file to something else
- Restart the System.
- Renable Services Automatic Updates and BITS.
Note if you find these methods not applicable in your case, the virus must have morphed to some other form.
Hope it works :)
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23 comments:
It really works man, Thanks !!
same problem with earth angel. ls help!
Thanks, it helped me to remove the virus easily.
vwnwhms---it is the random string! but cant find any dll file.Any suggestion? I thing earth angel is facing the same problem.why there is no reply!
For those who cant find the dll file the virus would have plymorphed to some other form when you connected to the internet.
mee too i was not able to find the random.dll, because the regedit cant show the parameters of the last service on the list.
I try to find a wierd dll which create in this days.
But i remove this name from that list, the virus is not bother me.
Thanks a lot.
Thanks for the great info. It worked on two systems that were infected, and now are malware free. I am a senior IT consultant and remove viruses for a living. I had spent many hours trying to find this one, and none of the best anti-virus software could find it. -Scott
The jwgkvsq.vmx is a worm-type virus, which spreads via USB/portable drives and through the network. It also makes autorun.inf file on your USB device as well as a hidden system folder called RECYCLER which contains the jwgkvsq.vmx file. I’m not sure if this is an old virus, but it seems it’s been spreading a lot lately. And most anti-virus doesn’t detect this, but for those who does, it can’t remove it.
"wnasnx" i found this it's the last one list. but no parameters dll. and i can't delete it. help me please. thanks!
i found this random string "wnasnx" last list. but i can't find the dll and no parameters key. and i can't delete. please help me. thanks
The exact size of file: 168096 byte. Search the system for this file size, and you will find the missing dll file in system32 folder! (It has another name of course.)
found the random string but not the dll file. in system 32 and whole c:\windows partition is no file with the exact size of 168096 byte.
Is it a good idea to delete or rename my "random string" folder:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ygxdsx
???
I couldn't find the DLL names in the registry but I've noticed that the modification date of the jwgkvsq.vmx is the same as the kernel32.dll file in the C:\WINDOWS\system32 ... so that's how I found the file. In my case that was eecsfqhw.dll which I renamed in safe mode. Its size and date were: 162,941 / 2009-03-21 17:06
I hope that helps others
cannot run services.msc
cannot run regedit.exe
now what else can i do?
To Neven Boyanov: I'm sorry for a stupud question, but how did the coincidence of the modification date of kernel32 and jwgkvsq help you? In fact, I've got the same problem, and the modification date of kernel32 is the same as one of jwgkvsq (19:52 16th April 2007). Couldn't you be so kind to share with me the way you find the dll file after that discovery?
hey thanks for the help, I'm just like the others who couldn't find the parameter, so I searched for a file with the exact size of my jwgkvsq.vmx file, it was a dll, and no surprise it was hidden, not accessible... so I modified the permission so I can delete it, I used processXP to end any open handle of that file (svchost was using it), and finally I deleted it and then restarted and voila !!
so I guess the whole registry move was useless to me, but it was a start.. thanks for the info.
Abdelrhman.
Thank You It Worked
hi 2 all..
In mine its under drivers with random name and has got no parameter in regstry.. Jus got a link to a file c:\windows\system32\03.tmp
microsoft malicious software removal tool did it for me
Miklos:
I found the random string in regedit and deleted it, then I ran cmd: svchost -k netsvcs. The random dll I could not find. Is that ok?
Guys download the malicious s/w remover from Microsoft.. worked like a charm.. My antivirus was able to detect it and delete it but once I rebooted the system, the damn virus was back again in the scan. Took me 2 hours to try this. a 500G portable drive so lots of data to scan :D anyways as people have said above as well.. Download the malicious S/w remover from MS and run it.
the worm is more malicious,because he blocks the access to Microsoft..
and to other antivirus site
you cannot download mce..
the best way is to delete the name of the service on the end of the list.
if you don't find the dll in system32 ,it's not important.
it is not activated anymore when you restart.
Thanks for the tutorial. It worked on my PC. This is the random string on my PC which does not appear on your list: mwshl
I hope you could add it on your list. Thanks!
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