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no internet after removing trojandropper:win32/sirefef.b


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20 replies to this topic

#1 itai

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Posted 24 December 2011 - 09:38 AM

hello!

i have a windows 7 proffestional 32 and i am infected with trojandropper:win32/sirefef.b
i removed it with superantispyware and it worked but after that i cauld not connect to the internet
it's stuck on identifying plz help me i am lost.

Edited by hamluis, 27 December 2011 - 02:30 PM.
Moved from Win 7 to Am I Infected.


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#2 Broni

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Posted 24 December 2011 - 12:22 PM

Welcome aboard Posted Image

Please download Farbar Service Scanner and run it on the computer with the issue.
  • Make sure the following options are checked:
    • Internet Services
    • Windows Firewall
    • System Restore
  • Press "Scan".
  • It will create a log (FSS.txt) in the same directory the tool is run.
  • Please copy and paste the log to your reply.

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#3 itai

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Posted 24 December 2011 - 03:47 PM

hello broni !

i did what u ask me to do .

Attached Files

  • Attached File  FSS.txt   2.23KB   8 downloads

Edited by itai, 24 December 2011 - 03:56 PM.


#4 Broni

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Posted 24 December 2011 - 04:01 PM

Please always paste your logs....

Farbar Service Scanner
Ran by Itai (administrator) on 24-12-2011 at 22:52:00
Microsoft Windows 7 Professional Service Pack 1 (X86)
****************************************************************

Internet Services:
============
Dnscache Service is not running. Checking service configuration:
The start type of Dnscache service is OK.
The ImagePath of Dnscache service is OK.
The ServiceDll of Dnscache service is OK.

Dhcp Service is not running. Checking service configuration:
The start type of Dhcp service is OK.
The ImagePath of Dhcp service is OK.
The ServiceDll of Dhcp service is OK.

tdx Service is not running. Checking service configuration:
Checking Start type: Attention! Unable to open tdx registry key. The service key does not exist.
Checking ImagePath: Attention! Unable to open tdx registry key. The service key does not exist.


Connection Status:
==============
Localhost is accessible.
LAN connected.
Google IP is accessible.
Yahoo IP is accessible.


Windows Firewall:
=============

Firewall Disabled Policy:
==================


System Restore:
============
SDRSVC Service is not running. Checking service configuration:
The start type of SDRSVC service is OK.
The ImagePath of SDRSVC service is OK.
The ServiceDll of SDRSVC service is OK.

VSS Service is not running. Checking service configuration:
The start type of VSS service is OK.
The ImagePath of VSS service is OK.


System Restore Disabled Policy:
========================


File Check:
========
C:\Windows\system32\nsisvc.dll => MD5 is legit
C:\Windows\system32\Drivers\nsiproxy.sys => MD5 is legit
C:\Windows\system32\dhcpcore.dll => MD5 is legit
C:\Windows\system32\Drivers\afd.sys => MD5 is legit
Attention! C:\Windows\system32\Drivers\tdx.sys is missing.
C:\Windows\system32\Drivers\tcpip.sys => MD5 is legit
C:\Windows\system32\dnsrslvr.dll => MD5 is legit
C:\Windows\system32\mpssvc.dll => MD5 is legit
C:\Windows\system32\bfe.dll => MD5 is legit
C:\Windows\system32\Drivers\mpsdrv.sys => MD5 is legit
C:\Windows\system32\SDRSVC.dll => MD5 is legit
C:\Windows\system32\vssvc.exe => MD5 is legit
C:\Windows\system32\svchost.exe => MD5 is legit
C:\Windows\system32\rpcss.dll => MD5 is legit


**** End of log ****

=================================================================================

We have one system file and one registry key missing.

Let's see if can find some replacements.

Please download SystemLook from one of the links below and save it to your Desktop.
Download Mirror #1
Download Mirror #2

64-bit users go HERE
  • Double-click SystemLook.exe to run it.
  • Vista\Win 7 users:: Right click on SystemLook.exe, click Run As Administrator
  • Copy the content of the following box and paste it into the main textfield:
    :filefind
    tdx.sys
    
  • Click the Look button to start the scan.
  • When finished, a notepad window will open with the results of the scan. Please post this log in your next reply.
Note: The log can also be found on your Desktop entitled SystemLook.txt

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#5 itai

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Posted 25 December 2011 - 01:44 PM

SystemLook 30.07.11 by jpshortstuff
Log created at 20:39 on 25/12/2011 by Itai
Administrator - Elevation successful

========== filefind ==========

Searching for "tdx.sys"
C:\Windows\winsxs\x86_microsoft-windows-tdi-over-tcpip_31bf3856ad364e35_6.1.7600.16385_none_ea141e6f3d693e28\tdx.sys --a---- 74240 bytes [23:12 13/07/2009] [23:12 13/07/2009] CB39E896A2A83702D1737BFD402B3542

-= EOF =-

#6 Broni

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Posted 25 December 2011 - 02:03 PM

Download following file: http://www.filedropper.com/fix_7
Double click on it to run the fix.

Then....

Following steps involve registry editing. Please create new restore point before proceeding!!!
How to:
XP - http://support.microsoft.com/kb/948247
Vista and Seven - http://www.howtogeek.com/howto/windows-vista/create-a-restore-point-for-windows-vistas-system-restore/


Download Seven.zip file from here: http://www.smartestcomputing.us.com/files/download/9-registry-network-keys/
Unzip the file.
You'll find six files inside.
Right click on tdx.reg file, click "Merge".
Allow registry merge.
Restart computer, check on internet connection and post new FSS log

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#7 itai

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Posted 25 December 2011 - 04:21 PM

hi broni !
i did what you ask me and i still can't connect to internet


Farbar Service Scanner
Ran by Itai (administrator) on 25-12-2011 at 23:18:30
Microsoft Windows 7 Professional Service Pack 1 (X86)
****************************************************************

Internet Services:
============
Dnscache Service is not running. Checking service configuration:
The start type of Dnscache service is OK.
The ImagePath of Dnscache service is OK.
The ServiceDll of Dnscache service is OK.

Dhcp Service is not running. Checking service configuration:
The start type of Dhcp service is OK.
The ImagePath of Dhcp service is OK.
The ServiceDll of Dhcp service is OK.

tdx Service is not running. Checking service configuration:
The start type of tdx service is OK.
The ImagePath of tdx service is OK.


Connection Status:
==============
Localhost is accessible.
LAN connected.
Google IP is accessible.
Yahoo IP is accessible.


Windows Firewall:
=============

Firewall Disabled Policy:
==================


System Restore:
============
SDRSVC Service is not running. Checking service configuration:
The start type of SDRSVC service is OK.
The ImagePath of SDRSVC service is OK.
The ServiceDll of SDRSVC service is OK.

VSS Service is not running. Checking service configuration:
The start type of VSS service is OK.
The ImagePath of VSS service is OK.


System Restore Disabled Policy:
========================


File Check:
========
C:\Windows\system32\nsisvc.dll => MD5 is legit
C:\Windows\system32\Drivers\nsiproxy.sys => MD5 is legit
C:\Windows\system32\dhcpcore.dll => MD5 is legit
C:\Windows\system32\Drivers\afd.sys => MD5 is legit
Attention! C:\Windows\system32\Drivers\tdx.sys is missing.
C:\Windows\system32\Drivers\tcpip.sys => MD5 is legit
C:\Windows\system32\dnsrslvr.dll => MD5 is legit
C:\Windows\system32\mpssvc.dll => MD5 is legit
C:\Windows\system32\bfe.dll => MD5 is legit
C:\Windows\system32\Drivers\mpsdrv.sys => MD5 is legit
C:\Windows\system32\SDRSVC.dll => MD5 is legit
C:\Windows\system32\vssvc.exe => MD5 is legit
C:\Windows\system32\svchost.exe => MD5 is legit
C:\Windows\system32\rpcss.dll => MD5 is legit


**** End of log ****

#8 Broni

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Posted 25 December 2011 - 06:48 PM

We haven't attempted any fix yet.
You just run a scan which shows me what's going on there.

For now we have one system file missing.
Let's see if we can any replacement.

Please run Farbar Service Scanner.
Type the following in the edit box after "Search:".

tdx.sys

Click Search Files button and post the log (FSS.txt) it makes to your reply.

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#9 itai

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Posted 26 December 2011 - 12:46 PM

Farbar Service Scanner
Ran by Itai (administrator) on 26-12-2011 at 19:44:57
Windows 7 Professional Service Pack 1 (X86)

************************************************
================== Search: "tdx.sys" ===================

C:\Windows\winsxs\x86_microsoft-windows-tdi-over-tcpip_31bf3856ad364e35_6.1.7600.16385_none_ea141e6f3d693e28\tdx.sys
[2009-07-14 01:12] - [2009-07-14 01:12] - 0074240 ____A (Microsoft Corporation) CB39E896A2A83702D1737BFD402B3542

====== End Of Search ======

#10 Broni

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Posted 26 December 2011 - 01:10 PM

Download following file: http://www.filedropper.com/fix_8
Double click on it to run the fix.

Restart computer, check on internet connection and post new FSS log.

My Website

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#11 itai

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Posted 26 December 2011 - 01:35 PM

Farbar Service Scanner
Ran by Itai (administrator) on 26-12-2011 at 20:33:53
Microsoft Windows 7 Professional Service Pack 1 (X86)
****************************************************************

Internet Services:
============
Dnscache Service is not running. Checking service configuration:
The start type of Dnscache service is OK.
The ImagePath of Dnscache service is OK.
The ServiceDll of Dnscache service is OK.

Dhcp Service is not running. Checking service configuration:
The start type of Dhcp service is OK.
The ImagePath of Dhcp service is OK.
The ServiceDll of Dhcp service is OK.

tdx Service is not running. Checking service configuration:
The start type of tdx service is OK.
The ImagePath of tdx service is OK.


Connection Status:
==============
Localhost is accessible.
There is no connection to network.
Google IP is accessible.
Yahoo IP is accessible.


Windows Firewall:
=============

Firewall Disabled Policy:
==================


System Restore:
============
SDRSVC Service is not running. Checking service configuration:
The start type of SDRSVC service is OK.
The ImagePath of SDRSVC service is OK.
The ServiceDll of SDRSVC service is OK.

VSS Service is not running. Checking service configuration:
The start type of VSS service is OK.
The ImagePath of VSS service is OK.


System Restore Disabled Policy:
========================


File Check:
========
C:\Windows\system32\nsisvc.dll => MD5 is legit
C:\Windows\system32\Drivers\nsiproxy.sys => MD5 is legit
C:\Windows\system32\dhcpcore.dll => MD5 is legit
C:\Windows\system32\Drivers\afd.sys => MD5 is legit
Attention! C:\Windows\system32\Drivers\tdx.sys is missing.
C:\Windows\system32\Drivers\tcpip.sys => MD5 is legit
C:\Windows\system32\dnsrslvr.dll => MD5 is legit
C:\Windows\system32\mpssvc.dll => MD5 is legit
C:\Windows\system32\bfe.dll => MD5 is legit
C:\Windows\system32\Drivers\mpsdrv.sys => MD5 is legit
C:\Windows\system32\SDRSVC.dll => MD5 is legit
C:\Windows\system32\vssvc.exe => MD5 is legit
C:\Windows\system32\svchost.exe => MD5 is legit
C:\Windows\system32\rpcss.dll => MD5 is legit


**** End of log ****

#12 Broni

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Posted 26 December 2011 - 02:10 PM

Are you sure you ran my fix?

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#13 itai

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Posted 26 December 2011 - 02:23 PM

yes i ran it and it open a window with black background for a second and that's it

#14 Broni

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Posted 26 December 2011 - 02:26 PM

That's how it should be.
Did you restart computer afterwards?

If so possibly some infection is still there.

Download TDSSKiller and save it to your desktop.
  • Doubleclick on TDSSKiller.exe to run the application, then on Start Scan.
  • If an infected file is detected, the default action will be Cure, click on Continue.
  • If a suspicious file is detected, the default action will be Skip, click on Continue.
  • It may ask you to reboot the computer to complete the process. Click on Reboot Now.
  • If no reboot is require, click on Report. A log file should appear. Please copy and paste the contents of that file here.
  • If a reboot is required, the report can also be found in your root directory (usually C:\ folder) in the form of TDSSKiller_xxxx_log.txt. Please copy and paste the contents of that file here.

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#15 itai

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Posted 26 December 2011 - 02:30 PM

it didn't find any threats




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