Exploit:Win32/CVE-2011-3402 is a detection for malicious code that attempts to exploit a vulnerability in the Win32 TrueType font parsing engine in the Microsoft Windows component "Win32k.sys". An attacker who successfully exploits this vulnerability could run arbitrary code in kernel mode. The attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

Exploit:Java/CVE-2011-3544 is a family of malicious Java applets that attempt to exploit a vulnerability in the Java Runtime Environment (JRE) in order to download and install files of an attacker's choice onto your computer.

If you visit a website containing the malicious code while using a vulnerable version of Java, Exploit:Java/CVE-2011-3544 is loaded. It then attempts to download and execute files from a remote host/URL; the files that are downloaded and executed could include additional malware.

Oracle Java SE JDK and JRE 7 and 6 Update 27 and earlier are all vulnerable to this exploit.

Exploit:Java/CVE-2012-0507 is a malicious Java applet that attempts to exploit a vulnerability (CVE-2012-0507) in the Java Runtime Environment (JRE) in order to download and install files of an attacker’s choice onto your computer.

If you visit a website containing the malicious code while using a vulnerable version of Java, the exploit is loaded. It then attempts to download and execute files from a remote host/URL; the files that are downloaded and executed could include additional malware.

The following versions of Java are vulnerable to this exploit:

• JDK and JRE 7 Update 2 and earlier Java SE
• JDK and JRE 6 Update 30 and earlier Java SE
• JDK and JRE 5.0 Update 33 and earlier Java SE
• SDK and JRE 1.4.2_35 and earlier Java SE
• JavaFX 2.0.2 and earlier JavaFX

Exploit:Java/CVE-2012-5076 is a family of malicious Java applets that attempt to exploit a vulnerability (CVE-2012-5076) in the Java Runtime Environment (JRE) in order to download and install files of an attacker’s choice onto your computer.

If you visit a website containing the malicious code while using a vulnerable version of Java, Exploit:Java/CVE-2012-5076 is loaded. It then attempts to download and execute files from a remote host/URL; the files that are downloaded and executed could include additional malware.

The following versions of Java are vulnerable to this exploit:

JDK and JRE 7 Update 7 and earlier 

Steps you can take

The nature of this threat means that you may need to take some steps to prevent being vulnerable from this, and similar exploits. We suggest you:

1. Clear the Java cache
2. Update Java
3. Remove older versions of Java

For detailed information about these steps, please see the Additional removal instructions below.

Windows Defender detects and removes this threat.

This threat uses a Java vulnerability to download and run files on your PC, including other malware.

It runs when you visit a hacked or malicious website and you have a vulnerable version of Java.

The following versions of Java are vulnerable:

• Java Runtime Environment of Oracle Java SE 7 Update 17 and earlier
• OpenJDK version 6 and version 7

To check if you're running a vulnerable version of Java:

1. In Control Panel, double-click Programs.
2. If Java is installed you will see it in the list of installed programs. Click it to open the Java Control Panel.
3. On the General tab, click About to see which version of Java you have installed.

You may get an alert about this threat even if you're not using a vulnerable version of Java. This is because we detect when a website tries to use the vulnerability, even if it isn't successful.

Java/CVE-2010-0094 is a family of malicious Java applets stored within a Java Archive (.JAR) that attempts to exploit a vulnerability in the Java Runtime Environment (JRE) up to and including version 6 update 18. The vulnerability allows an unsigned Java applet to gain elevated privileges and potentially have unrestricted access to a host system outside its "sandbox" environment. It is discussed in CVE-2010-0094.

Windows Defender detects and removes this threat.

This threat uses a Microsoft vulnerability to download and run files on your PC, including other malware. It is also called the "Sandworm" vulnerability or the "Windows OLE Remote Code Execution Vulnerability".

You can read more and apply updates to prevent exploiting this vulnerability in Microsoft Security Bulletin MS14-060.

It runs if you try to open an Office document and have one of the following vulnerable versions Windows:

• Windows 8.1
• Windows 8
• Windows 7 SP1
• Windows Vista SP2
• Windows RT 8.1
• Windows RT
• Windows Server 2012
• Windows Server 2012 R2
• Windows Server 2008 SP2
• Windows Server 2008 R2 SP1

You may get an alert about this threat even if you're not using a vulnerable version of the application. This is because we detect when a website or file tries to use the vulnerability, even if it isn't successful.

Windows Defender detects and removes this threat.

This threat uses a vulnerability to download and run files on your PC, including other malware. It is also called the "MSCOMCTL.OCX RCE Vulnerability".

It runs if you visit a web site, use a Microsoft Office document or .rtf file (Word document), and have a vulnerable version of the following applications on your PC:

• BizTalk Server 2002 SP1
• Commerce Server 2002 SP4, 2007 SP2, and 2009 Gold, and R2
• Microsoft Office 2003 SP3
• Microsoft Office 2003 Web Components SP3
• Microsoft Office 2007 SP2 and SP3
• Microsoft Office 2010 Gold and SP1
• SQL Server 2000 SP4, 2005 SP4, and 2008 SP2, SP3, and R2
• Visual Basic 6.0 Runtime
• Visual FoxPro 8.0 SP1 and 9.0 SP2

It is most often distributed through emails.

You may get an alert about this threat even if you're not using a vulnerable version of the application. This is because we detect when a website or file tries to use the vulnerability, even if it isn't successful.

Microsoft security software detects and removes this threat.

This threat uses a Java vulnerability to download and run files on your PC, including other malware.

It runs when you visit a hacked or malicious website and you have a vulnerable version of Java.

The following versions of Java are vulnerable:

• JDK and JRE 7 Update 4 and earlier Java SE

• JDK and JRE 6 Update 32 and earlier Java SE

• JDK and JRE 5.0 Update 35 and earlier Java SE

• SDK and JRE 1.4.2_37 and earlier Java SE

To check if you're running a vulnerable version of Java:

1. In Control Panel, double-click Programs.
2. If Java is installed you will see it in the list of installed programs. Click it to open the Java Control Panel.
3. On the General tab, click About to see which version of Java you have installed.

You might get an alert about this threat even if you're not using a vulnerable version of Java. This is because we detect when a website tries to use the vulnerability, even if it isn't successful.

Exploit:Java/CVE-2013-0422 is a malicious Java applet that attempts to exploit a vulnerability (CVE-2013-0422) in the Java Runtime Environment (JRE), in order to download and install files of an attacker’s choice onto your computer.

If you visit a website containing the malicious code while using a vulnerable version of Java, the exploit is loaded. Note, however, that a number of legitimate websites could be compromised or unwillingly host a malicious applet through advertising frames which could redirect to or host a malicious Java applet.

Update vulnerable Java applications

This threat exploits a known vulnerability in Java. After removing this threat, make sure that you install the updates available from the vendor. You can read more about this vulnerability in Java, as well as where to download the software update from the following links:

• CVE-2013-0422
• Java Download

It may be necessary to remove older versions of Java that are still present. Keeping old and unsupported versions of Java on your system presents a serious security risk. To read more about why you should remove older versions of Java, see the following information.

• Remove older versions of Java

Exploit:Java/CVE-2012-4681 is a family of malicious Java applets that attempt to exploit a vulnerability (CVE-2012-4681) in the Java Runtime Environment (JRE), in order to download and install files of an attacker’s choice onto your computer.

If you visit a website containing the malicious code while using a vulnerable version of Java, Exploit:Java/CVE-2012-4681 is loaded. It then attempts to download and execute files from a remote host/URL; the files that are downloaded and executed could include additional malware.

Oracle Java JDK and JRE 7 Update 5 and earlier, JRE 6 Update 34 and earlier are all vulnerable to this exploit.

Exploit:Win32/CVE-2011-1252.A is the detection for malware that exploits a vulnerability in Internet Explorer. It may arrive in the computer via a specially-crafted email message. It downloads files from a certain server.

Exploit:Java/CVE-2011-3544.N is a malicious Java applet stored within a Java Archive (.JAR) file. It attempts to exploit a vulnerability in the Java Runtime Environment (JRE) component in Oracle JAVA SE JDK and JRE 7, 6 Update 27 and earlier. The vulnerability allows an unsigned Java applet to gain elevated privileges and potentially have unrestricted access to run arbitrary Java code outside of the "sandbox" environment.

Exploit:Java/CVE-2011-3544.O is a malicious Java applet stored within a Java Archive (.JAR) file. It attempts to exploit a vulnerability in the Java Runtime Environment (JRE) component in Oracle JAVA SE JDK and JRE 7, 6 Update 27 and earlier. The vulnerability allows an unsigned Java applet to gain elevated privileges and potentially have unrestricted access to run arbitrary Java code outside of the "sandbox" environment.

More information about the vulnerability is available in the following articles:

• CVE-2011-3544
• Oracle Java SE Critical Patch Update Advisory - October 2011

Exploit:Win32/CVE-2011-0980 is the generic detection for specially crafted Microsoft Excel files that exploit a vulnerability discussed in CVE-2011-0980 and resolved with the release of Microsoft Security Bulletin MS11-021.

Exploit:Win32/CVE-2011-0976 is a detection of a malformed Microsoft PowerPoint data file that contains a file structure that attempts to exploit a vulnerability mentioned in CVE-2011-0976. Successful exploitation of the vulnerability could lead to the execution of arbitrary code. The vulnerability is mitigated by Microsoft Security Bulletin MS11-022, released April 2011.

Windows Defender detects and removes this threat.

It tries to exploit a vulnerability in Android devices to gain access and control of the device.

This is often done by someone wanting to install special apps on their device.