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yosimanu.dll


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6 replies to this topic

#1 tfkohman

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Posted 09 January 2010 - 12:10 PM

hi, i hope someone can help! im dreading the thought of having to reload my system.

yesterday, my firefox suddenly had a ton of popups...*3* mins after my son touched it (i swear he is a virus magnet) it was moving at a snails pace...i turned off system restore, and did the following

i ran:

avira
spyhunter
spy sweeper
spybot s&d
adaware
malwarebytes
esuing registry cleaner
cccleaner
advanced system care
troubleshooter

something somewhere got rid of whatever was causing the pop ups, and the system is running normal again...except when i first boot up, i get an error message that says:

"error loading c:\windows\system32\yosimanu.dll the specified module could not be found"

i cant seem to get rid of this error, and i have no clue what is causing it...any ideas??

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#2 garmanma

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Posted 09 January 2010 - 12:17 PM

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. yosimanu.dll
Right-click on the entry and choose delete.
Reboot your computer and see if the startup error returns.

If you still have problems, I suggest you post in our Am I Infected forum
http://www.bleepingcomputer.com/forums/f/103/am-i-infected-what-do-i-do/
Mark
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Having grandkids is God's way of giving you a 2nd chance because you were too busy working your butt off the 1st time around
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#3 longtooth

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Posted 09 January 2010 - 12:17 PM

Run a different reg cleaner and manually delete c:\windows\system32\yosimanu.dll file

You will find this link an interesting read http://www.prevx.com/filenames/64743636603...SIMANU.DLL.html

longtooth

#4 tfkohman

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Posted 09 January 2010 - 01:03 PM

thank you! thank you!! that worked!! it is gone!!

#5 tfkohman

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Posted 09 January 2010 - 03:39 PM

hey, have to ask...can you guys fix my caddie :thumbsup:

#6 OldGrumpyBastard

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Posted 09 January 2010 - 04:06 PM

Try using Tiger's...He may be available for a while....Caddie that is...LOL :thumbsup:
Does this look like an OldGrumpyBastard or what?

#7 garmanma

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Posted 09 January 2010 - 08:00 PM

Run a different reg cleaner and manually delete c:\windows\system32\yosimanu.dll file



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.
Mark
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why won't my laptop work?

Having grandkids is God's way of giving you a 2nd chance because you were too busy working your butt off the 1st time around
Do not send me PMs with problems that should be posted in the forums. Keep it in the forums, so everyone benefits
Become a BleepingComputer fan: Facebook and Twitter




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