Exploit

Classification

Malware

Exploit

W32

Java.Exploit.CVE, Exploit.Java.cve, Java.trojan.exploit, Exploit.js, exploit.html, Exploit kit, Exploit, Exploit.CVE, EXP/

Summary

A file or program contains an exploit that can take advantage of a known vulnerability to gain unauthorized access or control of a program, device or service.

Removal

Automatic action

Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.

Manually cleaning temporary or cache folders

In some cases, an infected file or an archive file containing infected files is detected inside a temporary or cache folder. For instructions on dealing with such an infection, see:

Suspect a file is incorrectly detected (a False Positive)?

A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:

  • Check for the latest database updates

    First check if your F-Secure security program is using the latest detection database updates, then try scanning the file again.

  • Submit a sample

    After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.

    NOTE If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.

  • Exclude a file from further scanning

    If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.

    Note You need administrative rights to change the settings.

Find out more

Knowledge Base

Find the latest advice in our Community Knowledge Base.

User Guide

See the user guide for your product on the Help Center.

Contact Support

Chat with or call an expert for help.

Submit a sample

Submit a file or URL for further analysis.

Technical Details

An exploit can be any object - for example, a program, a piece of code, or even just a string of characters - that can take advantage of a flaw or loophole in a program or operating system (a vulnerability).

An exploit is usually maliciously used to gain unauthorized access, or to force a vulnerable program or operating system to perform unexpected actions.

The name of the detection that identified the exploit will often indicate the vulnerability it targets, such as:

  • Exploit.Java.CVE-2012-0507

Where CVE-2012-0507 is the name used by the CVE - Common Vulnerabilities and Exposures (CVE) organization to identify the vulnerability.

Distribution

Exploits are often included in harmful programs such as trojans or worms, to facilitate their other destructive actions. These programs are usually spread in email attachments, or as disguised files that are distributed over networks.

Exploits are also used by exploit kits, which are most commonly encountered on compromised webpages. While an unsuspecting user views the webpage, the kit silently probes their computer or device for any flaws that can be exploited.

Impact

Exploits allow an attacker to perform a wide range of possible actions on an affected device, from viewing data on a restricted-user database to gaining almost complete control of a compromised system. For examples of exploits on various platfoms, see the following descriptions:

Exploit prevention

The vulnerabilities leveraged by the exploits are usually application or platform specific; in other words, a specific program (or even a specific version of a particular program) must be installed on the machine in order for the exploit to be effective.

To prevent exploitation of such vulnerabilities, please refer to the application vendor for the latest updates and additional advice.