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This file keeps coming back


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#1 dhlcrlc

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Posted 31 August 2010 - 09:32 PM

This file keeps coming back after i delete it. It's located in C:\WINDOWS\system32\drivers. It is a .sys file and keeps showing up in my adware/spyware scans. The name of this file is dhlcrlc.sys.

I have tried googling this file, but no results have turned up. My computer ( XP home edition sp3 ) has recently been infected by malware. I've tried removing it, but things like redirected pages in google keep coming up. I don't know if it's the dhlcrlc.sys that is causing this.

I'm new to this so sorry if I haven't gave enough information, I just want this problem gone >.>

Edited by dhlcrlc, 31 August 2010 - 09:35 PM.


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#2 boopme

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Posted 31 August 2010 - 11:25 PM

Hello it may be rootkit and hiding in a sytem file. Let's please run 2 scns.
Clear out some junk files first.
TFC by OT
Please download TFC by Old Timer and save it to your desktop.
alternate download link
Save any unsaved work. TFC will close ALL open programs including your browser!
Double-click on TFC.exe to run it. If you are using Vista, right-click on the file and choose Run As Administrator.
Click the Start button to begin the cleaning process and let it run uninterrupted to completion.
Important! If TFC prompts you to reboot, please do so immediately. If not prompted, manually reboot the machine anyway to ensure a complete clean.

Next run MBAM (MalwareBytes):

Please download Malwarebytes Anti-Malware (v1.46) and save it to your desktop.
Before you save it rename it to say zztoy.exe


alternate download link 1
alternate download link 2
MBAM may "make changes to your registry" as part of its disinfection routine. If using other security programs that detect registry changes (ie Spybot's Teatimer), they may interfere or alert you. Temporarily disable such programs or permit them to allow the changes.
  • Make sure you are connected to the Internet.
  • Double-click on mbam-setup.exe to install the application.
  • When the installation begins, follow the prompts and do not make any changes to default settings.
  • When installation has finished, make sure you leave both of these checked:
    • Update Malwarebytes' Anti-Malware
    • Launch Malwarebytes' Anti-Malware
  • Then click Finish.
MBAM will automatically start and you will be asked to update the program before performing a scan.
  • If an update is found, the program will automatically update itself. Press the OK button to close that box and continue.
  • If you encounter any problems while downloading the definition updates, manually download them from here and just double-click on mbam-rules.exe to install.
On the Scanner tab:
  • Make sure the "Perform Quick Scan" option is selected.
  • Then click on the Scan button.
  • If asked to select the drives to scan, leave all the drives selected and click on the Start Scan button.
  • The scan will begin and "Scan in progress" will show at the top. It may take some time to complete so please be patient.
  • When the scan is finished, a message box will say "The scan completed successfully. Click 'Show Results' to display all objects found".
  • Click OK to close the message box and continue with the removal process.
Back at the main Scanner screen:
  • Click on the Show Results button to see a list of any malware that was found.
  • Make sure that everything is checked, and click Remove Selected.
  • When removal is completed, a log report will open in Notepad.
  • The log is automatically saved and can be viewed by clicking the Logs tab in MBAM.
  • Copy and paste the contents of that report in your next reply. Be sure to post the complete log to include the top portion which shows MBAM's database version and your operating system.
  • Exit MBAM when done.
Note: If MBAM encounters a file that is difficult to remove, you will be asked to reboot your computer so MBAM can proceed with the disinfection process. If asked to restart the computer, please do so immediately. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware.
Now a rootkit scan:
We Need to check for Rootkits with RootRepeal
  • Download RootRepeal from the following location and save it to your desktop.
  • Extract RootRepeal.exe from the archive (If you did not use the "Direct Download" mirror).
  • Open Posted Image on your desktop.
  • Click the Posted Image tab.
  • Click the Posted Image button.
  • Check all seven boxes: Posted Image
  • Push Ok
  • Check the box for your main system drive (Usually C:), and press Ok.
  • Allow RootRepeal to run a scan of your system. This may take some time.
  • Once the scan completes, push the Posted Image button. Save the log to your desktop, using a distinctive name, such as RootRepeal.txt. Include this report in your next reply, please.

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

#3 dhlcrlc

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Posted 01 September 2010 - 11:18 AM

Malwarebytes log:

Malwarebytes' Anti-Malware 1.46
www.malwarebytes.org

Database version: 4523

Windows 5.1.2600 Service Pack 3
Internet Explorer 6.0.2900.5512

9/1/2010 11:59:04 AM
mbam-log-2010-09-01 (11-59-04).txt

Scan type: Quick scan
Objects scanned: 134401
Time elapsed: 4 minute(s), 40 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 3
Registry Values Infected: 8
Registry Data Items Infected: 0
Folders Infected: 3
Files Infected: 5

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{28abc5c0-4fcb-11cf-aax5-81cx1c635612} (Generic.Bot.H) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\adshothlpr.adshothlpr (Adware.Adrotator) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\adshothlpr.adshothlpr.1.0 (Adware.Adrotator) -> Quarantined and deleted successfully.

Registry Values Infected:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fccawwaudio (Trojan.Agent) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\jgyo0w (Trojan.Downloader) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\hgdaxxsys (Trojan.Vundo) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cbbbbyaudio (Trojan.Vundo) -> Quarantined and deleted successfully.
HKEY_USERS\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ddbxuusys (Trojan.Vundo) -> Quarantined and deleted successfully.
HKEY_USERS\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fccayxaudio (Trojan.Vundo) -> Quarantined and deleted successfully.
HKEY_USERS\S-1-5-18\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ddbxuusys (Trojan.Vundo) -> Quarantined and deleted successfully.
HKEY_USERS\S-1-5-18\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fccayxaudio (Trojan.Vundo) -> Quarantined and deleted successfully.

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
C:\Documents and Settings\NetworkService\Application Data\Street-Ads (Adware.Adrotator) -> Quarantined and deleted successfully.
C:\Documents and Settings\NetworkService\Application Data\Street-Ads\sta (Adware.Adrotator) -> Quarantined and deleted successfully.
C:\RESTORE\S-1-5-21-1482476501-1644491937-682003330-1013 (Backdoor.IRCBot) -> Delete on reboot.

Files Infected:
C:\RESTORE\S-1-5-21-1482476501-1644491937-682003330-1013\wmplayer16.exe (Generic.Bot.H) -> Delete on reboot.
C:\WINDOWS\system32\o.dat (Trojan.Vundo.Gen) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\drivers\dhlcrlc.sys (Rootkit.Bubnix) -> Delete on reboot.
C:\RESTORE\S-1-5-21-1482476501-1644491937-682003330-1013\Desktop.ini (Backdoor.IRCBot) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\comsats.sys (Trojan.Agent) -> Quarantined and deleted successfully.

--------------------------------------------------------------------------------


RootRepeal log:

ROOTREPEAL AD, 2007-2009
==================================================
Scan Start Time: 2010/09/01 12:04
Program Version: Version 1.3.5.0
Windows Version: Windows XP SP3
==================================================

Drivers
-------------------
Name: dhlcrlc.sys
Image Path: dhlcrlc.sys
Address: 0xF73BC000 Size: 794624 File Visible: No Signed: -
Status: -

Name: dump_atapi.sys
Image Path: C:\WINDOWS\System32\Drivers\dump_atapi.sys
Address: 0xAA02B000 Size: 98304 File Visible: No Signed: -
Status: -

Name: dump_WMILIB.SYS
Image Path: C:\WINDOWS\System32\Drivers\dump_WMILIB.SYS
Address: 0xF7B0A000 Size: 8192 File Visible: No Signed: -
Status: -

Name: mhfba.sys
Image Path: mhfba.sys
Address: 0xF75BE000 Size: 54016 File Visible: No Signed: -
Status: -

Name: rootrepeal.sys
Image Path: C:\WINDOWS\system32\drivers\rootrepeal.sys
Address: 0xA9958000 Size: 49152 File Visible: No Signed: -
Status: -

Hidden/Locked Files
-------------------
Path: C:\Documents and Settings\90\Local Settings\Apps\2.0\5HCRQROT.0YY\AG9P04TX.MG1\manifests\clickonce_bootstrap.exe.cdf-ms
Status: Locked to the Windows API!

Path: C:\Documents and Settings\90\Local Settings\Apps\2.0\5HCRQROT.0YY\AG9P04TX.MG1\manifests\clickonce_bootstrap.exe.manifest
Status: Locked to the Windows API!

SSDT
-------------------
#: 257 Function Name: NtTerminateProcess
Status: Hooked by "C:\Program Files\SUPERAntiSpyware\SASKUTIL.SYS" at address 0xaa0e8620

Hidden Services
-------------------
Service Name: dhlcrlc
Image Path: C:\WINDOWS\system32\drivers\dhlcrlc.sys

==EOF==

----------------------------------------------------------------

Also, on start-up there is a message about being unable to find dratra.dll. And thanks for taking your time to help me out

Edited by dhlcrlc, 01 September 2010 - 02:04 PM.


#4 boopme

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Posted 01 September 2010 - 03:31 PM

Hello and you're welcome!! We may have got it under a different name.. You needed to reboot to complete the malware removal.
OK we had some IRC bots and root kits.. So it is important ,if you do any banking or other financial transactions on the PC or if it should contain any other sensitive information, please get to a known clean computer and change all passwords where applicable, and it would be wise to contact those same financial institutions to apprise them of your situation.


Now we should still do a safe mode scan.
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.




Its not unusual to receive such an error after using specialized fix tools.

A "Cannot find...", "Could not run...", "Error loading... or "specific module could not be found" message is usually related to malware that was set to run at startup but has been deleted. Windows is trying to load this file but cannot locate it since the file was mostly likely removed during an anti-virus or anti-malware scan. However, an associated orphaned registry entry remains and is telling Windows to load the file when you boot up. Since the file no longer exists, Windows will display an error message. You need to remove this registry entry so Windows stops searching for the file when it loads.

To resolve this, download Autoruns, search for the related entry and then delete it.

Create a new folder on your hard drive called AutoRuns (C:\AutoRuns) and extract (unzip) the file there. (click here if you're not sure how to do this.)
Open the folder and double-click on autoruns.exe to launch it.
Please be patient as it scans and populates the entries.
When done scanning, it will say Ready at the bottom.
Scroll through the list and look for a startup entry related to the file(s) in the error message. EX: ---> dratra.dll
Right-click on the entry and choose delete.
Reboot your computer and see if the startup error returns.


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

#5 dhlcrlc

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Posted 01 September 2010 - 11:16 PM

Ok I finished the superantispyware scan. Here is the log


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

Generated 09/01/2010 at 11:59 PM

Application Version : 4.42.1000

Core Rules Database Version : 5340
Trace Rules Database Version: 3152

Scan type : Complete Scan
Total Scan Time : 00:58:34

Memory items scanned : 230
Memory threats detected : 0
Registry items scanned : 6500
Registry threats detected : 0
File items scanned : 19643
File threats detected : 0

Anyway, the pop-up message at the start doesn't appear anymore and it seems like my pc is clean. It is definitely running a lot faster and I no longer get re-directed (so far). I think the problem might be gone. The scan results are coming up clean.

There is one problem that happened and is still happening since mid-July. It might have nothing to do with this rootkit problem and this might not be the right place to ask for help on the topic, but my downloads speeds have decreased from 300 KBps to 60 KBps. I don't know what caused it, and I've tried many solutions, but to no avail. Can BleepingComputer help me on this topic?

Well other then that, thanks a lot for your help boopme. Easy instructions and quick clean-up. Thanks again. :thumbsup:

#6 boopme

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Posted 02 September 2010 - 09:54 AM

Hi that Vundo is a bit stubborn to fully remove.. We should do an Online scan..If that is clean then ask your other issue in the XP forum. They know more about that than I.

ESET
  • Hold down Control and click on the following link to open ESET OnlineScan in a new window.
    ESET OnlineScan
  • Click the ESET Online Scanner button.
  • For alternate browsers only: (Microsoft Internet Explorer users can skip these steps)
    • Click on Export to text file... to download the ESET Smart Installer. Save it to your desktop.
    • Double click on the Eset Smart Installer icon on your desktop.
  • Check the "YES, I accept the Terms of Use"
  • Click the Start button.
  • Accept any security warnings from your browser.
  • Check Scan archives
  • Push the Start button.
  • ESET will then download updates for itself, install itself, and begin scanning your computer. Please be patient as this can take some time.
  • When the scan completes, push "List of found threats"
  • Push "Export to text file", and save the file to your desktop using a unique name, such as ESETScan. Include the contents of this report in your next reply.
  • Push the "<<Back" button.
  • Push Finish
In your next reply, please include the following:
  • Eset Scan Log


NOTE: In some instances if no malware is found there will be no log produced.

Edited by boopme, 03 September 2010 - 09:28 AM.

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

#7 dhlcrlc

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Posted 02 September 2010 - 10:46 PM

Just finished scanning and no log was produced.
Anything else :D?

Thanks again for helping me, and sorry if I didn't explain very well or made it more difficult.

U da man :thumbsup:

#8 boopme

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Posted 03 September 2010 - 09:29 AM

Thanks!! If all's good then.... Now you should Create a New Restore Point to prevent possible reinfection from an old one. Some of the malware you picked up could have been backed up, renamed and saved in System Restore. Since this is a protected directory your tools cannot access to delete these files, they sometimes can reinfect your system if you accidentally use an old restore point. Setting a new restore point AFTER cleaning your system will help prevent this and enable your computer to "roll-back" to a clean working state.

The easiest and safest way to do this is:
  • Go to Start > Programs > Accessories > System Tools and click "System Restore".
  • Choose the radio button marked "Create a Restore Point" on the first screen then click "Next". Give the R.P. a name, then click "Create". The new point will be stamped with the current date and time. Keep a log of this so you can find it easily should you need to use System Restore.
  • Then use Disk Cleanup to remove all but the most recently created Restore Point.
  • Go to Start > Run and type: Cleanmgr
  • Click "Ok". Disk Cleanup will scan your files for several minutes, then open.
  • Click the "More Options" tab, then click the "Clean up" button under System Restore.
  • Click Ok. You will be prompted with "Are you sure you want to delete all but the most recent restore point?"
  • Click Yes, then click Ok.
  • Click Yes again when prompted with "Are you sure you want to perform these actions?"
  • Disk Cleanup will remove the files and close automatically.
Vista and Windows 7 users can refer to these links: Create a New Restore Point in Vista or Windows 7 and Disk Cleanup in Vista.
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

#9 dhlcrlc

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Posted 04 September 2010 - 11:12 AM

Okay, all done.

About my other question though, where exactly would I post a problem like that? You tell me in the XP forum, but there are also internet and networking forums.

Thanks again.

#10 boopme

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Posted 04 September 2010 - 11:23 AM

Yes, you are right,use the internet and networking forums.
Mention you run XP and the type of connection you use.
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




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