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I suspect malware has infected my laptop


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5 replies to this topic

#1 zbook

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Posted 06 January 2014 - 05:15 PM

In the last few days my Win 7 Dell laptop has been randomly broadcasting ads and interviews even when I have no apps running. From the reading I've been doing I fear that I may have some malware, and have downloaded and run various flavors of anti-spyware/malware. While some problems have been detected and cleaned - including some malware - the problem persists. I followed a posting on this forum in which Gringo assisted someone in a very complex cleanup - I could use some expertise to help me cleanup my system and get  it back online.

 

Thank you

 

zbook



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#2 Broni

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Posted 06 January 2014 - 07:59 PM

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Please download Rkill (courtesy of BleepingComputer.com) to your Desktop.
There are 2 different versions. If one of them won't run then download and try to run the other one.
You only need to get one of these to run, not all of them. You may get warnings from your antivirus about this tool, ignore them or shutdown your antivirus.

rKill.exe: http://www.bleepingcomputer.com/download/rkill/dl/10/
iExplore.exe (renamed rKill.exe): http://www.bleepingcomputer.com/download/rkill/dl/11/

  • Double-click on the Rkill desktop icon to run the tool.
  • If using Vista or Windows 7 right-click on it and choose Run As Administrator.
  • A black DOS box will briefly flash and then disappear. This is normal and indicates the tool ran successfully.
  • If not, delete the file, then download and use the one provided in Link 2.
  • Do not reboot until instructed.
  • If the tool does not run from any of the links provided, please let me know.


If normal mode still doesn't work, run the tool from safe mode.

When the scan is done Notepad will open with rKill log.
Post it in your next reply.

NOTE. rKill.txt log will also be present on your desktop.
 


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#3 zbook

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Posted 07 January 2014 - 12:42 AM

Hi Broni - thanks very much for your assistance

 

Neither version of rkill ran to completion - a popup window with the following always appeared during the run

 

 

 

Here are two outputs from safe mode:

 

iexplore.exe in Safe Mode

Rkill 2.6.4 by Lawrence Abrams (Grinler)
http://www.bleepingcomputer.com/
Copyright 2008-2014 BleepingComputer.com
More Information about Rkill can be found at this link:
 http://www.bleepingcomputer.com/forums/topic308364.html

Program started at: 01/06/2014 09:15:15 PM in x64 mode. (Safe Mode)
Windows Version: Windows 7 Home Premium

Checking for Windows services to stop:

 * No malware services found to stop.

Checking for processes to terminate:

 * No malware processes found to kill.

Checking Registry for malware related settings:

 * No issues found in the Registry.

Resetting .EXE, .COM, & .BAT associations in the Windows Registry.

Performing miscellaneous checks:

 * Windows Defender Disabled

   [HKLM\SOFTWARE\Microsoft\Windows Defender]
   "DisableAntiSpyware" = dword:00000001

 * Windows Firewall Disabled

   [HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile]
   "EnableFirewall" = dword:00000000

Checking Windows Service Integrity:

 * Base Filtering Engine (BFE) is not Running.
   Startup Type set to: Automatic

 * DHCP Client (Dhcp) is not Running.
   Startup Type set to: Automatic

 * DNS Client (Dnscache) is not Running.
   Startup Type set to: Automatic

 * COM+ Event System (EventSystem) is not Running.
   Startup Type set to: Automatic

 * Windows Firewall (MpsSvc) is not Running.
   Startup Type set to: Automatic

 * Network Connections (Netman) is not Running.
   Startup Type set to: Manual

 * Network Store Interface Service (nsi) is not Running.
   Startup Type set to: Automatic

 * Windows Defender (WinDefend) is not Running.
   Startup Type set to: Manual

 * Security Center (wscsvc) is not Running.
   Startup Type set to: Automatic (Delayed Start)

 * Windows Update (wuauserv) is not Running.
   Startup Type set to: Automatic (Delayed Start)

 * Ancillary Function Driver for Winsock (AFD) is not Running.
   Startup Type set to: System

 * Windows Firewall Authorization Driver (mpsdrv) is not Running.
   Startup Type set to: Manual

 * NetBT (NetBT) is not Running.
   Startup Type set to: System

 * NSI proxy service driver. (nsiproxy) is not Running.
   Startup Type set to: System

 * TCP/IP Protocol Driver (Tcpip) is not Running.
   Startup Type set to: System

 * NetIO Legacy TDI Support Driver (tdx) is not Running.
   Startup Type set to: System

Searching for Missing Digital Signatures:

 * C:\Windows\System32\rpcss.dll : 510,464 : 07/13/2009 05:41 PM : 905be8d106d893d0b2782e0caa196a58 [NoSig]

 

rkill.exe in Safe mode

 

Rkill 2.6.4 by Lawrence Abrams (Grinler)
http://www.bleepingcomputer.com/
Copyright 2008-2014 BleepingComputer.com
More Information about Rkill can be found at this link:
 http://www.bleepingcomputer.com/forums/topic308364.html

Program started at: 01/06/2014 09:22:41 PM in x64 mode. (Safe Mode)
Windows Version: Windows 7 Home Premium

Checking for Windows services to stop:

 * No malware services found to stop.

Checking for processes to terminate:

 * No malware processes found to kill.

Checking Registry for malware related settings:

 * No issues found in the Registry.

Resetting .EXE, .COM, & .BAT associations in the Windows Registry.

Performing miscellaneous checks:

 * Windows Defender Disabled

   [HKLM\SOFTWARE\Microsoft\Windows Defender]
   "DisableAntiSpyware" = dword:00000001

 * Windows Firewall Disabled

   [HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile]
   "EnableFirewall" = dword:00000000

Checking Windows Service Integrity:

 * Base Filtering Engine (BFE) is not Running.
   Startup Type set to: Automatic

 * DHCP Client (Dhcp) is not Running.
   Startup Type set to: Automatic

 * DNS Client (Dnscache) is not Running.
   Startup Type set to: Automatic

 * COM+ Event System (EventSystem) is not Running.
   Startup Type set to: Automatic

 * Windows Firewall (MpsSvc) is not Running.
   Startup Type set to: Automatic

 * Network Connections (Netman) is not Running.
   Startup Type set to: Manual

 * Network Store Interface Service (nsi) is not Running.
   Startup Type set to: Automatic

 * Windows Defender (WinDefend) is not Running.
   Startup Type set to: Manual

 * Security Center (wscsvc) is not Running.
   Startup Type set to: Automatic (Delayed Start)

 * Windows Update (wuauserv) is not Running.
   Startup Type set to: Automatic (Delayed Start)

 * Ancillary Function Driver for Winsock (AFD) is not Running.
   Startup Type set to: System

 * Windows Firewall Authorization Driver (mpsdrv) is not Running.
   Startup Type set to: Manual

 * NetBT (NetBT) is not Running.
   Startup Type set to: System

 * NSI proxy service driver. (nsiproxy) is not Running.
   Startup Type set to: System

 * TCP/IP Protocol Driver (Tcpip) is not Running.
   Startup Type set to: System

 * NetIO Legacy TDI Support Driver (tdx) is not Running.
   Startup Type set to: System

Searching for Missing Digital Signatures:

 * C:\Windows\System32\rpcss.dll : 510,464 : 07/13/2009 05:41 PM : 905be8d106d893d0b2782e0caa196a58 [NoSig]



#4 Broni

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Posted 07 January 2014 - 12:45 AM

You got hit by the newest infection which patches one of system files - rpcss.dll

It'll require elevated help.

 

Please follow the instructions in THIS GUIDE starting at Step 6. If you cannot complete a step, skip it and continue.

Once the proper logs are created, then make a NEW TOPIC and post it HERE. Please include a description of your computer issues, what you have done to resolve them, and a link to this topic.

If you can produce at least some of the logs, then please create the new topic and explain what happens when you try to create the log(s) that you couldn't get. If you cannot produce any of the logs, then still post the topic and explain that you followed the Prep. Guide, were unable to create the logs, and describe what happens when you try to create the logs.

It would be helpful if you post a note here once you have completed the steps in the guide and have started your topic in malware removal. Good luck and be patient.

If HelpBot replies to your topic, PLEASE follow Step One so it will report your topic to the team members.


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#5 zbook

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Posted 07 January 2014 - 01:21 AM

I've completed the steps in the guide and started a new topic as you indicated.

Thank you very much for helping me get started on this !



#6 Broni

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Posted 07 January 2014 - 06:44 PM

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