Published Jul 30, 2012 | Updated Sep 15, 2017

Exploit:Java/Blacole.AHN

Severe |Detected with Windows Defender Antivirus

Aliases: No associated aliases

Summary

Exploit:Java/Blacole.AHN is a malicious Java applet that attempts to exploit vulnerabilities (CVE-2012-1723 and 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 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 detect and remove this threat and other malicious software that may be installed on your computer, run a full-system scan with an appropriate, up-to-date, security solution. The following Microsoft products detect and remove this threat:

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:

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.

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