Published May 13, 2013 | Updated Sep 15, 2017


Severe |Detected with Windows Defender Antivirus

Aliases: JS/BlacoleRef.W.320 (Avira) JS/ (McAfee) text/BlacoleRef.BC (Norman) Troj/JSRedir-LE (Sophos) Trojan.JS.BlacoleRef.BB (BitDefender) Trojan.Malscript!JS (Symantec) W32/JSRedir.LE!tr (other)


Windows Defender detects and removes this threat.

Exploit:JS/Coolex.D is script contained within an exploit pack known as the "Cool exploit kit". It can install arbitrary malware on your computer through exploiting software vulnerabilities in Java version 7, update 17 and earlier.

As the Cool exploit kit and the Blacole exploit kit share malicious web page patterns and exploits, in some instances you might see Exploit:JS/Blacole detected on your computer alongside Exploit:JS/Coolex.D

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.

Vulnerabilities are fixed by updating your software. Updates are usually available from the software publisher’s website. You can find instructions on how to download the latest versions of some common software, including Java, on our updating software page.

Follow us