Recurring trojan alerts

system · May 19, 2013, 12:55pm

Hello.

I had encountered a similar problem to this one: http://forum.avast.com/index.php?topic=123799.0
Namely, repeated avast alerts about trojan horse and malware.

I did a full scan and a boot-time scan after. It didn’t seem to help.
Then I used combofix as specified in the topic above. Now I am recieving no more alerts.

Yet I would like to know if the virus is truly gone for good and if I need to take any further action.

Attached are the combofix log and OTL and FSS logs after running combofix.

Thanks in advance.

essexboy · May 19, 2013, 4:36pm

Hi there it will take a few more runs I feel

Close any open browsers.
Close/disable all anti virus and anti malware programs so they do not interfere with the running of ComboFix.
Open notepad and copy/paste the text in the quotebox below into it:

File:: c:\windows\system32\services.exe.F4C374AFD0E06B02 c:\windows\system32\services.exe.6C0CB61B4EC2A0A2 c:\windows\system32\services.exe.36AEB5897A84C3A4 c:\windows\system32\services.exe.525967C0E2DE0164 c:\windows\system32\services.exe.CA1A1F1A3A118F91 c:\windows\system32\services.exe.EC8BDAB4AD320B8B c:\windows\system32\services.exe.763817010ADF4091 c:\windows\system32\services.exe.9B09781075BC5F3A c:\windows\system32\services.exe.B15271BF3E9BE207 c:\windows\system32\services.exe.0C116811AC33A080 c:\windows\system32\services.exe.A8843CFE6E53044E c:\windows\system32\drivers\duqktvfj.sys c:\windows\system32\drivers\bhnojxsa.sys c:\windows\system32\drivers\cauyvalm.sys c:\windows\system32\drivers\edtibgni.sys c:\windows\system32\drivers\frueviwi.sys c:\windows\system32\drivers\gdyjeirr.sys c:\windows\system32\drivers\hcvnlfzb.sys c:\windows\system32\drivers\jjntctfi.sys c:\windows\system32\drivers\juabbwvv.sys c:\windows\system32\drivers\kjficatd.sys c:\windows\system32\drivers\krxizmco.sys c:\windows\system32\drivers\kuuffxen.sys c:\windows\system32\drivers\lcjnwfsy.sys c:\windows\system32\drivers\lordejfx.sys c:\windows\system32\drivers\lyacfspn.sys c:\windows\system32\drivers\mdwtfgvf.sys c:\windows\system32\drivers\oyrkrwoy.sys c:\windows\system32\drivers\qoqesrax.sys c:\windows\system32\drivers\qqksgjha.sys c:\windows\system32\drivers\rblbrmyw.sys c:\windows\system32\drivers\sysvctpy.sys c:\windows\system32\drivers\vgiwiefp.sys c:\windows\system32\drivers\weeuzaag.sys c:\windows\system32\drivers\wibxbcfb.sys
Driver::
bhnojxsa
cauyvalm
duqktvfj
edtibgni
frueviwi
gdyjeirr
hcvnlfzb
jjntctfi
juabbwvv
kjficatd
krxizmco
kuuffxen
lcjnwfsy
lordejfx
lyacfspn
mdwtfgvf
oyrkrwoy
qoqesrax
qqksgjha
rblbrmyw
sysvctpy
vgiwiefp
weeuzaag
wibxbcfb

Save this as CFScript.txt, in the same location as ComboFix.exe

http://img.photobucket.com/albums/v666/sUBs/CFScriptB-4.gif

Refering to the picture above, drag CFScript into ComboFix.exe

When finished, it will produce a log for you at C:\ComboFix.txt which I will require in your next reply.

system · May 19, 2013, 7:46pm

OK, done.

essexboy · May 19, 2013, 8:05pm

Could you now run a fresh OTL scan please with the following script, there will only be one log this time … How is the computer at the moment ?

[*]Run OTL.

https://dl.dropbox.com/u/73555776/OTL_Main_Tutorial.gif

[*]Select All Users
[*]Under the Custom Scan box paste this in

netsvcs
BASESERVICES
%SYSTEMDRIVE%*.exe
/md5start
services.*
explorer.exe
winlogon.exe
Userinit.exe
svchost.exe
/md5stop
dir C:\ /S /A:L /C
CREATERESTOREPOINT

[*]Click the Run Scan button. Do not change any settings unless otherwise told to do so. The scan wont take long.
[*]When the scan completes, it will open two notepad windows. OTL.Txt and Extras.Txt. These are saved in the same location as OTL.
[*]Post both logs

system · May 21, 2013, 6:16am

Sorry for the delay; I had a rather busy day.

My computer is running fine since the first ComboFix launch. It’s running at the same speed as before infection (I think) and I haven’t received any new alerts since.
Here is the OTL log.

Thanks for the guidance ^^

essexboy · May 21, 2013, 2:56pm

Hi you have the latest variant of the sirfef/zero access . That would explain why those extra service files would not go

Warning: this fix is specific to the user in this thread. No one else should follow these instructions as it may cause more harm than good. If you are after assistance, please start a thread of your own.

[*]Click on the Start
http://dl.dropbox.com/u/16537616/Canned%20Speeches/Start%20Orb.jpg
button and in the search box, type Notepad and click on it
[*]Copy (Ctrl+C) all of the text in the following box and paste (Ctrl+V) it into Notepad


fsutil reparsepoint delete "C:\Program Files\Windows Defender\en-US" 
fsutil reparsepoint delete "C:\Program Files\Windows Defender\MpAsDesc.dll"
fsutil reparsepoint delete "C:\Program Files\Windows Defender\MpClient.dll"
fsutil reparsepoint delete "C:\Program Files\Windows Defender\MpCmdRun.exe"
fsutil reparsepoint delete "C:\Program Files\Windows Defender\MpCommu.dll"
fsutil reparsepoint delete "C:\Program Files\Windows Defender\MpEvMsg.dll"
fsutil reparsepoint delete "C:\Program Files\Windows Defender\MpOAV.dll"
fsutil reparsepoint delete "C:\Program Files\Windows Defender\MpRTP.dll"
fsutil reparsepoint delete "C:\Program Files\Windows Defender\MpSvc.dll"
fsutil reparsepoint delete "C:\Program Files\Windows Defender\MSASCui.exe"
fsutil reparsepoint delete "C:\Program Files\Windows Defender\MsMpCom.dll"
fsutil reparsepoint delete "C:\Program Files\Windows Defender\MsMpLics.dll"
fsutil reparsepoint delete "C:\Program Files\Windows Defender\MsMpRes.dll"
CD \
DIR /S /A:L > %USERPROFILE%\Desktop\JunctionPoints.txt
START JunctionPoints.txt
EXIT

[*]Go to File > Save As… and save it to your Desktop named fix.bat. Make sure you change the Save as type to All Files (.)
[*]Locate fix.bat on your Desktop and right click then select Run as administrator
[*]A log Junction.txt will be located on the desktop attach that

THEN

Warning This fix is only relevant for this system and no other, using on another computer may cause problems

Be advised that when the fix commences it will shut down all running processes and you may lose the desktop and icons, they will return on reboot

Run OTL

[*]Under the Custom Scans/Fixes box at the bottom, paste in the following

https://dl.dropbox.com/u/73555776/OTL_Fix.GIF


:OTL
[2013/05/19 13:57:37 | 000,328,704 | ---- | C] (Microsoft Corporation) -- C:\Windows\SysNative\services.exe.F4C374AFD0E06B02
[2013/05/19 13:57:18 | 000,328,704 | ---- | C] (Microsoft Corporation) -- C:\Windows\SysNative\services.exe.6C0CB61B4EC2A0A2
[2013/05/19 13:56:40 | 000,328,704 | ---- | C] (Microsoft Corporation) -- C:\Windows\SysNative\services.exe.36AEB5897A84C3A4
[2013/05/19 13:56:22 | 000,328,704 | ---- | C] (Microsoft Corporation) -- C:\Windows\SysNative\services.exe.525967C0E2DE0164
[2013/05/19 13:51:14 | 000,328,704 | ---- | C] (Microsoft Corporation) -- C:\Windows\SysNative\services.exe.CA1A1F1A3A118F91
[2013/05/19 13:50:33 | 000,328,704 | ---- | C] (Microsoft Corporation) -- C:\Windows\SysNative\services.exe.EC8BDAB4AD320B8B
[2013/05/19 13:47:20 | 000,328,704 | ---- | C] (Microsoft Corporation) -- C:\Windows\SysNative\services.exe.763817010ADF4091
[2013/05/19 13:43:08 | 000,328,704 | ---- | C] (Microsoft Corporation) -- C:\Windows\SysNative\services.exe.9B09781075BC5F3A
[2013/05/19 13:42:26 | 000,328,704 | ---- | C] (Microsoft Corporation) -- C:\Windows\SysNative\services.exe.B15271BF3E9BE207
[2013/05/19 13:37:56 | 000,328,704 | ---- | C] (Microsoft Corporation) -- C:\Windows\SysNative\services.exe.0C116811AC33A080
[2013/05/19 13:37:08 | 000,328,704 | ---- | C] (Microsoft Corporation) -- C:\Windows\SysNative\services.exe.A8843CFE6E53044E
[2013/05/19 13:15:22 | 000,004,608 | ---- | M] () -- C:\Windows\assembly\GAC_32\Desktop.ini
[2013/05/19 13:15:22 | 000,006,144 | ---- | M] () -- C:\Windows\assembly\GAC_64\Desktop.ini

:Files
C:\Windows\Installer\{90693b04-078f-ab4e-fc9d-c214798f0f26}

:Commands
[resethosts]
[emptytemp]
[CREATERESTOREPOINT]
[Reboot]

[*]Then click the Run Fix button at the top
[*]Let the program run unhindered, reboot the PC when it is done
[*]Open OTL again and click the Quick Scan button. Post the log it produces in your next reply.

system · May 21, 2013, 4:14pm

I accidentally didn’t copy the whole code for the .bat file, and I saw it only after launching. So I had to make a new one and launch that one. It showed some errors about not being able to delete the reparse points, but I assume that’s because the first one did it already. After that all seemed to go nicely.

Logs are attached.

essexboy · May 21, 2013, 4:26pm

OK that looks to have killed it, how is the computer behaving ?

system · May 21, 2013, 8:07pm

Ya, the paths are all there. I’m glad avast alerted me about the virus timely.
The computer is running nice and smooth, no alerts etc.

Thanks again for help ^^

essexboy · May 21, 2013, 9:26pm

Subject to no further problems

I will remove my tools now and give some recommendations, but, I would like you to run for 24 hours or so and come back if you have any problems

Now the best part of the day ----- Your log now appears clean

A good workman always cleans up after himself so…The following will implement some cleanup procedures as well as reset System Restore points:

Remove ComboFix
[*]Hold down the Windows key + R on your keyboard. This will display the Run dialogue box
[*]In the Run box, type in ComboFix /Uninstall
(Notice the space between the “x” and “/”)
then click OK

http://i1224.photobucket.com/albums/ee362/Essexboy3/Misc%20screen%20shots/CF_Uninstall-1.jpg

[]Follow the prompts on the screen
[]A message should appear confirming that ComboFix was uninstalled

Run OTL and hit the cleanup button. It will remove all the programmes we have used plus itself.

Clear Restore Points

Go Start > All Programmes > Accessories > System tools
Right click Disc Cleanup and select run as administrator
When it pops up at the first prompt select OK after it has done some calculations the tabs will appear
Select More Options tab
Press Sytem Restore and Shadow Copies Cleanup button

https://dl.dropbox.com/u/73555776/disc%20clean.JPG

: Keep Java Updated :

WARNING: Java is the #1 exploited program at this time. The Department of Homeland Security recommends that computer users disable Java
See this article and this article.
I would recommend that you completely uninstall Java unless you need it to run an important software.
In that instance I would recommend that you disable Java in your browsers until you need it for that software and then enable it. (See How to diasble Java in your web browser and How to unplug Java from the browser)

Now that you are clean, to help protect your computer in the future I recommend that you get the following free programmes:

http://img233.imageshack.us/img233/7729/mbamicontw5.gif
Malwarebytes.

Update and run weekly to keep your system clean

Download and install FileHippo update checker and run it monthly it will show you which programmes on your system need updating and give a download link

If you use on-line banking then as an added layer of protection install Trusteer Rapport

It is critical to have both a firewall and anti virus to protect your system and to keep them updated. To keep your operating system up to date visit
[*]Microsoft Windows Update

To learn more about how to protect yourself while on the internet read our little guide How did I get infected in the first place ?Keep safe

Recurring trojan alerts

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