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XP sp3 issues with dllhost.exe


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#1 matl0ck

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Posted 16 November 2013 - 09:37 AM

Attached (if i can) is a screenshot, this issue started yesterday (11/15/2013) and I've been able to do pretty much nothing since it started...

 

In task manager, there are about 10-20 instances of dllhost.exe and each are using from 5-190MB of memory, causing the computer to be sluggishly slow.  I've been through msconfig, the registry, eset and now MBAM (currently scanning) with 0 results of anything that would cause this.  I checked all the autostart locations, but sadly, am unable to pin down this issue.

 

Hijack this reported nothing out of the ordinary, no rogue processes, no rogue startup entries.

 

Puzzled.

 

 

 

Also, i apologize if i don't respond directly right away, I have things to do today and may not be in front of the machine in question.

 

update

 

during the scan with MBAM, about 28 of the dllhost.exe's went away, then directly after the scan, came back...  attached another screenshot from processxp showing the threads it's running if it helps.

 

Malwarebytes Anti-Malware 1.75.0.1300
www.malwarebytes.org

Database version: v2013.04.04.07

Windows XP Service Pack 3 x86 NTFS
Internet Explorer 8.0.6001.18702
Glen :: HOME-AE1588FD0D [administrator]

11/16/2013 9:23:58 AM
mbam-log-2013-11-16 (09-23-58).txt

Scan type: Quick scan
Scan options enabled: Memory | Startup | Registry | File System | Heuristics/Extra | Heuristics/Shuriken | PUP | PUM
Scan options disabled: P2P
Objects scanned: 190913
Time elapsed: 15 minute(s), 45 second(s)

Memory Processes Detected: 0
(No malicious items detected)

Memory Modules Detected: 0
(No malicious items detected)

Registry Keys Detected: 0
(No malicious items detected)

Registry Values Detected: 0
(No malicious items detected)

Registry Data Items Detected: 0
(No malicious items detected)

Folders Detected: 1
C:\Documents and Settings\All Users\Application Data\IBUpdaterService (PUP.InstallBrain) -> Quarantined and deleted successfully.

Files Detected: 1
C:\Documents and Settings\All Users\Application Data\IBUpdaterService\repository.xml (PUP.InstallBrain) -> Quarantined and deleted successfully.

(end)

Attached Files


Edited by hamluis, 16 November 2013 - 11:17 AM.
Moved from XP to Am I Infected - Hamluis.


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#2 matl0ck

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Posted 16 November 2013 - 10:41 AM

alright so looks like Explorer is spawning all these processes, but I can't seem to make it stop, running an Sfc scannow while I'm doing MBAM scan


Edited by matl0ck, 16 November 2013 - 10:42 AM.


#3 Broni

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Posted 16 November 2013 - 12:08 PM

Welcome aboard p22002758.gif

 

p22002970.gif Download Security Check from here or here and save it to your Desktop.

  • Double-click SecurityCheck.exe
  • Follow the onscreen instructions inside of the black box.
  • A Notepad document should open automatically called checkup.txt; please post the contents of that document.

NOTE 1. If one of your security applications (e.g., third-party firewall) requests permission to allow DIG.EXE access the Internet, allow it to do so.
NOTE 2 SecurityCheck may produce some false warning(s), so leave the results reading to me.

p22002970.gif Please download Farbar Service Scanner (FSS) and run it on the computer with the issue.
  • Make sure the following options are checked:
    • Internet Services
    • Windows Firewall
    • System Restore
    • Security Center/Action Center
    • Windows Update
    • Windows Defender
    • Other Services
  • 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.


p22002970.gif Please download MiniToolBox and run it.

Checkmark following boxes:
  • Report IE Proxy Settings
  • Report FF Proxy Settings
  • List content of Hosts
  • List IP configuration
  • List Winsock Entries
  • List last 10 Event Viewer log
  • List Installed Programs
  • List Devices (do NOT change any settings here)
  • List Users, Partitions and Memory size

Click Go and post the result.

p22002970.gif Download Malwarebytes' Anti-Malware (aka MBAM): https://www.bleepingcomputer.com/download/malwarebytes-anti-malware/ to your desktop.

* Double-click mbam-setup.exe and follow the prompts to install the program.
* At the end, be sure a checkmark is placed next to Update Malwarebytes' Anti-Malware and Launch Malwarebytes' Anti-Malware, then click Finish.
* If an update is found, it will download and install the latest version.
* Once the program has loaded, select Perform quick scan, then click Scan.
* When the scan is complete, click OK, then Show Results to view the results.
* Be sure that everything is checked, and click Remove Selected.
* When completed, a log will open in Notepad.
* Post the log back here.

Be sure to restart the computer.

The log can also be found here:
C:\Documents and Settings\Username\Application Data\Malwarebytes\Malwarebytes' Anti-Malware\Logs\log-date.txt
Or at C:\Program Files\Malwarebytes' Anti-Malware\Logs\log-date.txt

p22002970.gifDownload Malwarebytes Anti-Rootkit from HERE to your Desktop.
  • Unzip downloaded file.
  • Open the folder where the contents were unzipped and run mbar.exe
  • Follow the instructions in the wizard to update and allow the program to scan your computer for threats.
  • DO NOT click on the Cleanup button. Simply exit the program.
  • When done, please post the two logs produced they will be in the MBAR folder..... mbar-log-xxxxx.txt and system-log.txt


p22002970.gif 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.

NOTE Do NOT wrap your logs in "quote" or "code" brackets.


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