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01.19.2008 at 03:16PM PST, ID: 23096126
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Removal of possible Kernel Mode Rootkit Assistance

Tags: Very evil virus
Noticed problem earlier this week while trying to install new software on the server. Upon installation everything is fine, but the moment a service associated with the new software is started the executable file deletes itself. Wasn't sure what to make of this at first random error or something wrong with the software but on further inspection this began to occur with multiple applications seemingly for no apparent reason.  Currently running Kav for win2k3 server on the box, but it finds nothing. Tried rootkit detectors such as icesword, and Blacklight from f-secure... Still nothing, was about to give up and give it off to just me being over curious but ran an external scan of open ports on the pc. Port 7214 appears open and when queried is running a version of servu FTP server with implicit SSL enabled. Since no rootkit was detected I proceeded to believe a dll must be injected somewhere... Checked with tcpview to find what proc was listening on that port but no results. Used proc explorer to inspect various dlls loaded by system procs such as services.exe, winlogon.exe, etc still no luck. Anyone have some ideas? Possible solutions I can try?

Edit: Here's a HJT log... Don't think it'll help much tho :X

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 0:26:26, on 20-1-2008
Platform: Windows 2003 SP2 (WinNT 5.02.3790)
MSIE: Internet Explorer v7.00 SP2 (7.00.5730.0011)
Boot mode: Normal

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:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 6.0 for Windows Servers\avp.exe
c:\ftpservs\Ftpserv.exe
C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 6.0 for Windows Servers\avp.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\rdpclip.exe
C:\WINDOWS\system32\ctfmon.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 6.0 for Windows Servers\avp.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Documents and Settings\Administrator\Local Settings\Temporary Internet Files\Content.IE5\AEE3V7RB\HiJackThis[1].exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = res://shdoclc.dll/softAdmin.htm
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = res://shdoclc.dll/softAdmin.htm
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\Internet Explorer\Main,First Home Page = res://shdoclc.dll/softAdmin.htm
O4 - HKLM\..\Run: [AVP] "C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 6.0 for Windows Servers\avp.exe"
O4 - HKCU\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\ctfmon.exe
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-19\..\RunOnce: [tscuninstall] %systemroot%\system32\tscupgrd.exe (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'NETWORK SERVICE')
O4 - HKUS\S-1-5-20\..\RunOnce: [tscuninstall] %systemroot%\system32\tscupgrd.exe (User 'NETWORK SERVICE')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\S-1-5-18\..\RunOnce: [tscuninstall] %systemroot%\system32\tscupgrd.exe (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] C:\WINDOWS\system32\CTFMON.EXE (User 'Default user')
O4 - HKUS\.DEFAULT\..\RunOnce: [tscuninstall] %systemroot%\system32\tscupgrd.exe (User 'Default user')
O15 - ESC Trusted Zone: http://runonce.msn.com
O16 - DPF: {26700CD9-6157-4B72-B46F-EC93C952F19C} (SWToolSet.Engine) - http://10.0.50.2/SWToolset.exe
O23 - Service: Kaspersky Anti-Virus 6.0 (AVP) - Kaspersky Lab - C:\Program Files\Kaspersky Lab\Kaspersky Anti-Virus 6.0 for Windows Servers\avp.exe
O23 - Service: AutoFtp Service (TFtpserv) - PrimaSoft PC, Inc. - c:\ftpservs\Ftpserv.exe
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Question Stats
Zone: Security
Question Asked By: rand0m3r
Solution Provided By: rpggamergirl
Participating Experts: 4
Solution Grade: A
Views: 12
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01.19.2008 at 04:53PM PST, ID: 20699664

Rank: Guru

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01.20.2008 at 01:20AM PST, ID: 20700586

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01.20.2008 at 01:22AM PST, ID: 20700590

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01.20.2008 at 01:29AM PST, ID: 20700600

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01.20.2008 at 01:35AM PST, ID: 20700609

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01.20.2008 at 01:37AM PST, ID: 20700611

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01.20.2008 at 05:13AM PST, ID: 20700977

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01.20.2008 at 05:43AM PST, ID: 20701054

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01.20.2008 at 09:05PM PST, ID: 20704007

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02.18.2008 at 07:32AM PST, ID: 20920668

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02.18.2008 at 10:49AM PST, ID: 20922374

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03.13.2008 at 03:51AM PDT, ID: 21114788

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01.19.2008 at 04:53PM PST, ID: 20699664

Rank: Guru

It could be a Stealth MBR rootkit.
http://www.symantec.com/enterprise/security_response/weblog/2008/01/from_bootroot_to_trojanmebroot.html
http://www.symantec.com/business/security_response/writeup.jsp?docid=2008-010718-3448-99


Gmer 1.0.14 might detect it.
type:     Name:                                       Value:
Disk      \Device\Harddisk0\DR0               sector 00: MBR rootkit detected!!!


If so,
To remove rootkit from infected machine you can simply use "Recovery Console" with the "fixmbr" command.

Good luck.
 
01.20.2008 at 01:20AM PST, ID: 20700586
Didn't detect any MBR rootkits, but found some interesting infos. Not really sure what is good or bad someone who knows this would have to take a look (see attached) I noticed these->
Library         C:\WINDOWS\system32\RPCRT4.dll (*** hidden *** ) @ C:\WINDOWS\system32\winlogon.exe [192]                                                                                                                                                         0x77C50000                                  
Library         C:\WINDOWS\system32\RPCRT4.dll (*** hidden *** ) @ C:\WINDOWS\system32\csrss.exe [380]    

Which doesn't seem normal at all :X There were also references to a file named klif.sys that looked ODD to say the least such as zwPort and such, removed them rebooted, still no effect on hidden servu running on the server. Tried uploading specific file to virus total and it seems someone else already had but there are zero av results. Seems a lil bit off that it had already been scanned. The file itself is not the same filesize of any known versions of klif.sys which makes me wonder a bit...
Looking at its contents with a hex editor i noticed->
KLHookCreateProcess:: PsGetCurrentProcess() failed
 csrss.exe   ΓΏ

Which to me seems mighty odd. Looks like some kind of dll injection code/process hooking.
 
GMer LogFile
 
 
01.20.2008 at 01:22AM PST, ID: 20700590
Here is a copy of klif.sys for anyone that can take a look at it. I will add another post with the references to klif.sys still in the gmer log in a little bit (i removed them before saving a logfile, but alas this menace has infected multiple servers so that will not be an issue )
 
01.20.2008 at 01:29AM PST, ID: 20700600
Klif.sys.txt = Klif.sys
klif.bmp = SDS Values for Klif.sys
 
Picture of SDS values from Klif.sys
Picture of SDS values from Klif.sys
 
 
 
 
01.20.2008 at 01:35AM PST, ID: 20700609
Tried deleting SDS, removing klif.sys with pocketkillbox but nothing seems to allow the file to be deleted.
 
01.20.2008 at 01:37AM PST, ID: 20700611
Seems klif.sys is associated with Kav, and not actually causing an issue. *is dumbfounded what 2 do next
 
01.20.2008 at 05:13AM PST, ID: 20700977

Rank: Guru

If we're looking for a physical rootkit file, they don't seem to be showing in those logs.
If you do have MBR rootkit(which gmer didn't detect) it's also not surprising to not see any traces of it, as MBR rootkit doesn't need any file, the code could exists in some sectors of the disk. Doesn't need any registry entry because it's loaded by MBR code. And it can hide itself by controling few sectors of the disk.

If you think the system has an MBR rootkit, then the only way to remove it is by Recovery Console with the Fixmbr command.

Accepted Solution
 
01.20.2008 at 05:43AM PST, ID: 20701054
I am surprised someone did not suggest rootkit revealer:

http://technet.microsoft.com/en-us/sysinternals/bb897445.aspx

If you have a rootkit on the system this will find it.

-D-
Assisted Solution
 
01.20.2008 at 09:05PM PST, ID: 20704007
rootkitrevealer is a no go doesn't find anything.  rpggamergirl the boxes are hosted in another country/I do not have physical access to boot into the recovery console and fix. Is it possible to install the recovery console but still access it within windows?
 
02.18.2008 at 07:32AM PST, ID: 20920668
You could give prevx a try.

www.prevx.com The free scanner could show you if it's worth buying the full version.

Aparat from that, it seems like you have to ask someone at the remote site to handle the problem, without special serialized hardware (KVM via lan) there is no remote support possible.

Tolomir
Assisted Solution
 
02.18.2008 at 10:49AM PST, ID: 20922374
{Quote}rootkitrevealer is a no go doesn't find anything.  rpggamergirl the boxes are hosted in another country/I do not have physical access to boot into the recovery console and fix. Is it possible to install the recovery console but still access it within windows?{/quote}

Then you don't have a rootkit installed.
 
03.13.2008 at 03:51AM PDT, ID: 21114788
No comment has been added to this question in more than 21 days, so it is now classified as abandoned.

I will leave the following recommendation for this question in the Cleanup topic area:
   Split: rpggamergirl {http:#20700977} & dimante {http:#20701054} & Tolomir {http:#20920668}

Any objections should be posted here in the next 4 days. After that time, the question will be closed.

Tolomir
EE Cleanup Volunteer
 
 
03.17.2008 at 03:43PM PDT, ID: 21146956
Forced accept.

Computer101
EE Admin
 
 
 
20080236-EE-VQP-29 / EE_QW_2_20070628