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Memory getting eaten up


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#1 mjenni27

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Posted 08 June 2015 - 03:43 PM

So my boss has been fighting trojans for the last few weeks.  I have progressively gone from Avast to running Kepersky in a bootable CD trying to fix.  Today he has hit a new problem.  Memory is being eaten up by CMD.exe and MSDTC.exe.  We literally watched them using more and more memory.  Went up to 70% use in under 5 minutes.  Both files got larger than 1 gig each rapidly and kept growing.  Any idea what is causing it?



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#2 carlosayon

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Posted 08 June 2015 - 05:44 PM

Hi, I'm sorry to hear that you are having this issue. Let me try to add some help to this post.
 
"Use this only if you are not following any other instructions"
 
I will provide you a couple of steps that will clean up your computer in the most part. 
 
1. Since most likely your computer runs a lot of programs once it turns on, to make the process easier we will disable all the program that run at boot.
From your keyboard press Win + R key - It will pop up a "Run" window. Inside that "Run" box please type in msconfig
Once it opens, go to the Startup tab, and disable all of the entries (In windows XP, Vista and 7, you can do it all at once, in windows 8, it has to be one by one.)
 
2. Restart your computer.
 
3. Now we are going to run several applications one by one, withouth restarting your computer. 
 

- Junkware Removal Tool - Removes adware, junk toolbars, and unwanted software.
http://www.bleepingcomputer.com/download/junkware-removal-tool/
 
- AdwareCleaner - Removes adware, toolbars, hijackers. 
http://www.bleepingcomputer.com/download/adwcleaner/
 
- MalwareBytes - Removes malware
http://www.bleepingcomputer.com/download/malwarebytes-anti-malware/
 
- Rkill - Removes Malware
http://www.bleepingcomputer.com/download/rkill/
 
- Spybot Search & Destroy - Removes spywares and malicious softwares. 
https://www.safer-networking.org/
 
- Iobit Uninstaller - Uninstal software manually, in case you know of an application that should not be installed in your computer. 
*** You can use the following website to know if an application is dangerous - http://www.shouldiremoveit.com/
http://www.iobit.com/es/advanceduninstaller.php
 
- Registry Recycler - Will clean all empties and misdirected registries left from all the cleaning. 
http://www.registryrecycler.com/

*Moderator Edit:moderator edit: Removed instructions to run a tool which is not allowed in Am I Infected. ~ Queen-Evie*

Edited by Queen-Evie, 08 June 2015 - 06:18 PM.
moved from Windows 7 to Am I Infected.


#3 Queen-Evie

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Posted 08 June 2015 - 06:19 PM

Bleeping Computer DOES NOT recommend the use of registry cleaners/optimizers for several reasons:
  • Registry cleaners are extremely powerful applications that can damage the registry by using aggressive cleaning routines and cause your computer to become unbootable.

    The Windows registry is a central repository (database) for storing configuration data, user settings and machine-dependent settings, and options for the operating system. It contains information and settings for all hardware, software, users, and preferences. Whenever a user makes changes to settings, file associations, system policies, or installed software, the changes are reflected and stored in this repository. The registry is a crucial component because it is where Windows "remembers" all this information, how it works together, how Windows boots the system and what files it uses when it does. The registry is also a vulnerable subsystem, in that relatively small changes done incorrectly can render the system inoperable. For a more detailed explanation, read Understanding The Registry.
  • Not all registry cleaners are created equal. There are a number of them available but they do not all work entirely the same way. Each vendor uses different criteria as to what constitutes a "bad entry". One cleaner may find entries on your system that will not cause problems when removed, another may not find the same entries, and still another may want to remove entries required for a program to work.
  • Not all registry cleaners create a backup of the registry before making changes. If the changes prevent the system from booting up, then there is no backup available to restore it in order to regain functionality. A backup of the registry is essential BEFORE making any changes to the registry.
  • Improperly removing registry entries can hamper malware disinfection and make the removal process more difficult if your computer becomes infected. For example, removing malware related registry entries before the infection is properly identified can contribute to system instability and even make the malware undetectable to removal tools.
  • The usefulness of cleaning the registry is highly overrated and can be dangerous. In most cases, using a cleaner to remove obsolete, invalid, and erroneous entries does not affect system performance but it can result in "unpredictable results".
Unless you have a particular problem that requires a registry edit to correct it, I would suggest you leave the registry alone. Using registry cleaning tools unnecessarily or incorrectly could lead to disastrous effects on your operating system such as preventing it from ever starting again. For routine use, the benefits to your computer are negligible while the potential risks are great.

#4 mjenni27

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Posted 08 June 2015 - 10:13 PM

Queen Evie,

 

Not trying a reg cleaner.  We are currently trying to find what is causing these two executables to be eating up the memory.



#5 Queen-Evie

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Posted 08 June 2015 - 11:19 PM

I was responding to this in order to let Carlos and anyone else who reads the post what the BC stance about registry cleaners is.

 

3. Now we are going to run several applications one by one, withouth restarting your computer. 

 - Registry Recycler - Will clean all empties and misdirected registries left from all the cleaning. 
http://www.registryrecycler.com/

 



#6 mjenni27

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Posted 09 June 2015 - 08:09 AM

So, he uninstalled java last night and the bleed stopped.  He cannot run IE any more recent than 8 because if he goes to 9 or above, then he is unable to download anything.

 

Any ideas?



#7 hamluis

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Posted 09 June 2015 - 09:06 AM

Frankly...with a history of recent malware problems...that's my first guess.  Many do-it-yourself efforts...don't do the job required.

 

But...please download MiniToolBox  , save it to your desktop and run it.
 
Checkmark the following checkboxes:
  List last 10 Event Viewer log
  List Installed Programs
  List Users, Partitions and Memory size.
 
Click Go and paste the content into your next post.
 
Also...please Publish a Snapshot using Speccy - http://www.bleepingcomputer.com/forums/topic323892.html/page__p__1797792#entry1797792 , taking care to post the link of the snapshot in your next post.
 
Louis

 






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