Published Oct 16, 2013 | Updated Sep 15, 2017


Severe |Detected with Windows Defender Antivirus

Aliases: EXP/JS.Expack.EM (Avira) JS/Kryptik.AHX trojan (ESET) JS/ (McAfee) Mal/ExpJS-N (Sophos) JS_BLACOLE.SIT (Trend Micro)


Windows Defender Antivirus detects and removes this threat. 

This threat runs on your when you visit a hacked or malicious webpage and you are using a vulnerable or out-of-date version of , , or .PCJavaAdobe PDF ReaderFlash Player

It then installs other malware on your , including components of the "" and "" exploit kits. These exploits can download other malware on your .PCPCBlackholeCool

See our for more information about this type of threat.exploits page


The following security software detects and removes this threat:Microsoft

Even if we've already detected and removed this particular threat, running a full scan might find other malware that is hiding on your .PC

Make sure you install all available updates. You can read more about this vulnerability and download software updates from these links:Java

You should remove older versions of , as keeping old and unsupported versions of on your is a serious security risk:JavaJavaPC

If you continue to get alerted about this threat, deleting your temporary files can help:Java

It's also important to keep your other software up to date:

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