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ping6s.dll trying to connect & modify registry


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7 replies to this topic

#1 dalek1999

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Posted 08 November 2010 - 05:02 PM

My firewall (Comodo free) is alerting me about ping6s.dll process.

I get alerts that it is trying to connect to internet to 85.17.188.195 and also that it is trying to modify certain protected registry entries.

Searched for ping6s.dll on web but found nothing really.

ping6s.dll is in windows\system32 folder with a fairly recent date (oct 2010)

Running XP Pro SP3.
Avast Free AV (scans clean)
Malwarebytes (scans clean)

I am wondering what this process is and what invokes it.

Thx

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#2 dalek1999

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Posted 09 November 2010 - 03:40 PM

Adding some further info:-

Using Sysinternals process explorer I found the ping6s.dll under a svhost.exe entry.

The entry shows:-

C:\WINDOWS\system32\rundll32.exe "C:\WINDOWS\system32\ping6S.dll",Phpiovlj

The ping6s.dll file is in Windows\system32 and has the attributes rahs

Example of outgoing connection it attempts:-

2010-11-09 09:23:03 C:\WINDOWS\system32\ping6S.dll Blocked Out TCP 193.167.8.1 7684 85.17.188.195 20480
2010-11-09 09:23:04 C:\WINDOWS\system32\ping6S.dll Blocked Out TCP 193.167.8.1 7940 85.17.188.195 20480

Eaxmple of Registry mod it attempts (which it repeats evry minute):-

2010-11-09 00:00:58 C:\WINDOWS\system32\ping6S.dll Modify Key HKLM\SYSTEM\ControlSet???\Services\wscsvc

Suggestions welcome.

Thx

#3 boopme

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Posted 10 November 2010 - 12:54 AM

Hi, I think this is a Trojan.Agent/Gen.BHO malware.

Next run ATF and SAS: If you cannot access Safe Mode,run in normal ,but let me know.

Note: On Vista, "Windows Temp" is disabled. To empty "Windows Temp" ATF-Cleaner must be "Run as an Administrator".

From your regular user account..
Download Attribune's ATF Cleaner and then SUPERAntiSpyware , Free Home Version. Save both to desktop ..
DO NOT run yet.
Open SUPER from icon and install and Update it
Under Scanner Options make sure the following are checked (leave all others unchecked):
Close browsers before scanning.
Scan for tracking cookies.
Terminate memory threats before quarantining
.
Click the "Close" button to leave the control center screen and exit the program. DO NOT run yet.

Now reboot into Safe Mode: How to enter safe mode(XP)
Using the F8 Method
Restart your computer.
When the machine first starts again it will generally list some equipment that is installed in your machine, amount of memory, hard drives installed etc. At this point you should gently tap the F8 key repeatedly until you are presented with a Windows XP Advanced Options menu.
Select the option for Safe Mode using the arrow keys.
Then press enter on your keyboard to boot into Safe Mode
.

Double-click ATF-Cleaner.exe to run the program.
Under Main "Select Files to Delete" choose: Select All.
Click the Empty Selected button.

If you use Firefox or Opera browser click that browser at the top and choose: Select All
Click the Empty Selected button.
If you would like to keep your saved passwords, please click No at the prompt.
Click Exit on the Main menu to close the program
.

NOW Scan with SUPER
Open from the desktop icon or the program Files list
On the left, make sure you check C:\Fixed Drive.
Perform a Complete scan. After scan,Verify they are all checked.
Click OK on the summary screen to quarantine all found items.
If asked if you want to reboot, click "Yes" and reboot normally.

To retrieve the removal information after reboot, launch SUPERAntispyware again.
Click Preferences, then click the Statistics/Logs tab.
Under Scanner Logs, double-click SUPERAntiSpyware Scan Log.
If there are several logs, click the current dated log and press View log.
A text file will open in your default text editor.
Please copy and paste the Scan Log results in your next reply.
Click Close to exit the program.


Rerun MBAM (MalwareBytes) like this:

Open MBAM in normal/regular mode and click Update tab, select Check for Updates,when done
click Scanner tab,select Quick scan and scan (normal mode).
After scan click Remove Selected, Post new scan log and Reboot into normal mode.

Please ask any needed questions,post logs and Let us know how the PC is running now.
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#4 dalek1999

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Posted 10 November 2010 - 01:23 PM

Hi Boopme . Have followed your suggestions thanks. Only thing I did not do was fix the registry entries about security alert advising. I have Avast AV and Comodo FW running at all times.

The logs from SAS amd MBAM are copied below.

On booting machine 17:52 Process Explorer still shows ping6s.dll running from rundll32.exe under svhost.exe

Still attempts 2 connections out (Comodo log info below)
2010-11-10 17:55:19 C:\WINDOWS\system32\ping6S.dll Blocked Out TCP 193.167.8.1 2564 85.17.188.195 20480
2010-11-10 17:55:21 C:\WINDOWS\system32\ping6S.dll Blocked Out TCP 193.167.8.1 2820 85.17.188.195 20480

Also attempting to modify registry still (Comodo log belwo):-
2010-11-10 17:55:20 C:\WINDOWS\system32\ping6S.dll Modify Key HKUS\.DEFAULT\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\ParseAutoexec
2010-11-10 17:55:20 C:\WINDOWS\system32\ping6S.dll Modify Key HKUS\.DEFAULT\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\ParseAutoexec
2010-11-10 17:56:22 C:\WINDOWS\system32\ping6S.dll Modify Key HKLM\SYSTEM\ControlSet???\Services\wscsvc
2010-11-10 17:57:22 C:\WINDOWS\system32\ping6S.dll Modify Key HKLM\SYSTEM\ControlSet???\Services\wscsvc
2010-11-10 17:58:19 C:\WINDOWS\system32\ping6S.dll Modify Key HKLM\SYSTEM\ControlSet???\Services\wscsvc
The wscsvc mod attempt repeats every minute...

Machine seems to be running OK (it was before) - but I obviously want to identify and fix this if it is a security threat.

Thx
John

SAS Log:-

SUPERAntiSpyware Scan Log
http://www.superantispyware.com

Generated 11/10/2010 at 04:16 PM

Application Version : 4.45.1000

Core Rules Database Version : 5838
Trace Rules Database Version: 3650

Scan type : Complete Scan
Total Scan Time : 06:37:45

Memory items scanned : 200
Memory threats detected : 0
Registry items scanned : 6778
Registry threats detected : 3
File items scanned : 165953
File threats detected : 10

Disabled.SecurityCenterOption
HKLM\SOFTWARE\MICROSOFT\SECURITY CENTER#ANTIVIRUSDISABLENOTIFY
HKLM\SOFTWARE\MICROSOFT\SECURITY CENTER#FIREWALLDISABLENOTIFY
HKLM\SOFTWARE\MICROSOFT\SECURITY CENTER#UPDATESDISABLENOTIFY

Adware.Tracking Cookie
.bestspeedfind.com [ C:\Documents and Settings\jr\Application Data\Mozilla\Firefox\Profiles\kqqyf3u5.default\cookies.sqlite ]
clicks.bestspeedfind.com [ C:\Documents and Settings\jr\Application Data\Mozilla\Firefox\Profiles\kqqyf3u5.default\cookies.sqlite ]
clicks.search312.com [ C:\Documents and Settings\jr\Application Data\Mozilla\Firefox\Profiles\kqqyf3u5.default\cookies.sqlite ]
.immediatesearchtool.com [ C:\Documents and Settings\jr\Application Data\Mozilla\Firefox\Profiles\kqqyf3u5.default\cookies.sqlite ]
clicks.immediatesearchtool.com [ C:\Documents and Settings\jr\Application Data\Mozilla\Firefox\Profiles\kqqyf3u5.default\cookies.sqlite ]
.immediatesearchtool.com [ C:\Documents and Settings\jr\Application Data\Mozilla\Firefox\Profiles\kqqyf3u5.default\cookies.sqlite ]
.bestspeedfind.com [ C:\Documents and Settings\jr\Application Data\Mozilla\Firefox\Profiles\kqqyf3u5.default\cookies.sqlite ]
clicks.freesearchquick.com [ C:\Documents and Settings\jr\Application Data\Mozilla\Firefox\Profiles\kqqyf3u5.default\cookies.sqlite ]

Unclassified.Unknown Origin
C:\PROGRAM FILES\TRADEGUIDER\KEYGEN.NFO
C:\TEMP\TRADEGUIDER2.5.3-CRACK\KEYGEN.NFO

MABM Log:-

Malwarebytes' Anti-Malware 1.46
www.malwarebytes.org

Database version: 5089

Windows 5.1.2600 Service Pack 3
Internet Explorer 6.0.2900.5512

10/11/2010 17:44:19
mbam-log-2010-11-10 (17-44-19).txt

Scan type: Quick scan
Objects scanned: 140827
Time elapsed: 7 minute(s), 3 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 0
Registry Data Items Infected: 3
Folders Infected: 0
Files Infected: 0

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
(No malicious items detected)

Registry Values Infected:
(No malicious items detected)

Registry Data Items Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center\AntiVirusDisableNotify (Disabled.SecurityCenter) -> Bad: (1) Good: (0) -> No action taken.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center\FirewallDisableNotify (Disabled.SecurityCenter) -> Bad: (1) Good: (0) -> No action taken.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center\UpdatesDisableNotify (Disabled.SecurityCenter) -> Bad: (1) Good: (0) -> No action taken.

Folders Infected:
(No malicious items detected)

Files Infected:
(No malicious items detected)

#5 boopme

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Posted 10 November 2010 - 03:47 PM

Appears a rootkit scan is in order here.

Please download GMER from one of the following locations and save it to your desktop:
  • Main Mirror
    This version will download a randomly named file (Recommended)
  • Zipped Mirror
    This version will download a zip file you will need to extract first. If you use this mirror, please extract the zip file to your desktop.
  • Disconnect from the Internet and close all running programs.
  • Temporarily disable any real-time active protection so your security programs will not conflict with gmer's driver.
  • Double-click on the randomly named GMER file (i.e. n7gmo46c.exe) and allow the gmer.sys driver to load if asked.
  • Note: If you downloaded the zipped version, extract the file to its own folder such as C:\gmer and then double-click on gmer.exe.

    Posted Image
  • GMER will open to the Rootkit/Malware tab and perform an automatic quick scan when first run. (do not use the computer while the scan is in progress)
  • If you receive a WARNING!!! about rootkit activity and are asked to fully scan your system...click NO.
  • Now click the Scan button. If you see a rootkit warning window, click OK.
  • When the scan is finished, click the Save... button to save the scan results to your Desktop. Save the file as gmer.log.
  • Click the Copy button and paste the results into your next reply.
  • Exit GMER and be sure to re-enable your anti-virus, Firewall and any other security programs you had disabled.
-- If you encounter any problems, try running GMER in safe mode.
-- If GMER crashes or keeps resulting in a BSODs, uncheck Devices on the right side before scanning
.
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#6 dalek1999

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Posted 10 November 2010 - 07:01 PM

OK I tried GMER but had problems.

1. In normal mode could not load device driver (access denied). All AV and FW programs disabled closed.
2. Tried Gmer is safe mode. No rootkit msgs on initial scan but BSOD before end.
3. Tried Gmer is safe mode with Devices box unchecked. No rootkit msgs on inital scan but BSOD again before end.

I am just looking in registry now and at services to try and find how this ping6s.dll gets started.

Any other suggestions with Gmer?

thx

#7 boopme

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Posted 10 November 2010 - 11:50 PM

I think it safest if we need a deeper look. Please go here....
Preparation Guide ,do steps 6 - 9.

Create a DDS log and post it in the new topic explained in step 9,which is here Virus, Trojan, Spyware, and Malware Removal Logs and not in this topic,thanks.
Skip GMER but mention it will not run.

Let me know if that went well.
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#8 Orange Blossom

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Posted 11 November 2010 - 10:14 PM

Hello,

Now that you have posted a log here: http://www.bleepingcomputer.com/forums/topic359870.html you should NOT make further changes to your computer (install/uninstall programs, use special fix tools, delete files, edit the registry, etc) unless advised by a MRT Team member, nor should you ask for help elsewhere. Doing so can result in system changes which may not show in the log you already posted. Further, any modifications you make on your own may cause confusion for the helper assisting you and could complicate the malware removal process which would extend the time it takes to clean your computer.

From this point on the MRT Team should be the only members that you take advice from, until they have verified your log as clean.

Please be patient. It may take a while to get a response because the MRT Team members are EXTREMELY busy working logs posted before yours. They are volunteers who will help you out as soon as possible. Once you have made your post and are waiting, please DO NOT make another reply until it has been responded to by a member of the MRT Team. Generally the staff checks the forum for postings that have 0 replies as this makes it easier for them to identify those who have not been helped. If you post another response there will be 1 reply. A team member, looking for a new log to work may assume another MRT Team member is already assisting you and not open the thread to respond.

Please be patient. It may take several days to get a response but your log will be reviewed and answered as soon as possible. I advise checking your topic once a day for responses as the e-mail notification system is unreliable.

To avoid confusion, I am closing this topic. Good luck with your log.

Orange Blossom :cherry:
Help us help you. If HelpBot replies, you MUST follow step 1 in its reply so we know you need help.

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