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JAVA_BYTEVER Removal
This malware is a component of a malicious Java archive file (JAR) that
resides in a malicious Web site. It then goesn on to call upon more malware to
be downloaded and installed, which results in modifications to the browser and
registry settings of the infected system.
Details:
This malware exploits a known vulnerability in Microsoft Virtual
Machine build 5.0.3809 and below. This new
security vulnerability does not correctly
check for the presence of certain malicious
code when a Java applet is being loaded.
Thus an attacker can exploit this in Web
pages that, when viewed or opened, could
launch an executable file.
Solution:Resetting Internet Explorer Homepage and Search Page
This procedure restores the Internet
Explorer home page and search page to the
default settings.
- Close all Internet Explorer windows.
- Open Control Panel. Click
Start>Settings>Control Panel
- Double-click the Internet Options
icon.
- In the Internet Properties window,
click the Programs tab.
- Click the “Reset Web Settings…”
button.
- Select “Also reset my home page.”
Click Yes.
- Click OK.
Changing the Signature of Microsoft
Outlook Express
This procedure restores the signature of
Microsoft Outlook Express.
- Open Microsoft Outlook Express.
- Click on Tools>Options. Click on the
Signature Tab.
- If the file chosen in the File text
box below is equal to “s.htm” or some
other undesired file, delete the entry
in the textbox.
- Click OK.
Clear the java cache
To clear your Java 1.4 cache, ( also see image 1
below)
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1. |
Click on the "Start" button in the
lower left corner of your screen and slide your cursor up until it
reaches the "Settings" option. Select the "Control Panel" option. |
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2. |
When the "Control Panel" window opens,
double-click on the "Java Plug-in" icon. |
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3. |
Once in the "Java Plug-in Control
Panel" window, click on the "Cache" tab.
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4. |
Click on the "Clear" button in the
right-hand side of the window. Click "Yes" in the popup confirmation
window.
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5. |
Close the Control Panel window. |
To clear your Java 1.5 cache, (also see image 2 below)
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1. |
Click on the "Start" button in the
lower left corner of your screen and slide your cursor up until it
reaches the "Settings" option. Select the "Control Panel" option.
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2. |
When the "Control Panel" window opens,
double-click on the "Java" icon. |
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3. |
When the "Java Control Panel" window
opens, it will display the "General" tab. Click on the "Delete Files..."
button at the bottom of this window.
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4. |
Click "OK" in the popup confirmation
window. Then, click "OK" at the bottom of the Control Panel window to
close it.
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Additional Windows ME/XP Cleaning
Instructions
Users running Windows ME and XP must
disable System Restore to allow full
scanning of infected systems.
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