Home Malware Programs Viruses VirTool:JS/Obfuscator.EK

VirTool:JS/Obfuscator.EK

Posted: April 21, 2014

Threat Metric

Ranking: 6,849
Threat Level: 1/10
Infected PCs: 141
First Seen: April 21, 2014
Last Seen: December 26, 2021
OS(es) Affected: Windows


VirTool:JS/Obfuscator.EK is a detection for threats that have been deliberately obscured to make its identification difficult. Although VirTool:JS/Obfuscator.EK may be applied to a wide swathe of different PC threats, malware experts often link them to the Blackhole Exploit Kit and other attackers that are hosted on compromised Web pages. Protection from VirTool:JS/Obfuscator.EK may take as many forms as its interior code, but always should include anti-malware tools for finding and removing VirTool:JS/Obfuscator.EK, hopefully, before VirTool:JS/Obfuscator.EK can cause any harm.

The Unhappy Possibilities Hidden Beneath a Little JavaScript

VirTool:JS/Obfuscator is a general term employed for threatening software that tries to hide its intentions beneath layers of JavaScript-based code obfuscation. Code obfuscation is a sufficiently common practice for threats that the behavior of individual members of this family, such as VirTool:JS/Obfuscator.EK may be difficult to predict. However, malware researchers usually find these practices to accompany high-level PC threats, or simple Trojans that are charged with installing these threats. Examples of possible variants of VirTool:JS/Obfuscator.EK include:

  • E-mail spam may include fraudulent file attachments that are protected from being identified as threatening. These versions of VirTool:JS/Obfuscator.EK Trojans usually have no specific purposes, beyond installing additional threatening software, which may be embedded in their bodies or downloaded from a remote server.
  • However, a download attack from VirTool:JS/Obfuscator.EK may occur automatically. Exploit kit-based variants of VirTool:JS/Obfuscator.EK Trojans are hosted on threatening or hacked websites, and may launch automatically. PCs with relevant software vulnerabilities may be automatically infected with threats.
  • In other cases, VirTool:JS/Obfuscator.EK may be a defense for threats that already are on your system, as opposed to an installer for threats. High-level threats known to include these defenses include banking Trojans, rootkits, backdoor Trojans and other types of threats with multiple components.

Symptoms during a VirTool:JS/Obfuscator.EK attack may or may not be evident, and malware experts recommend against trying to detect VirTool:JS/Obfuscator.EK manually. The majority of threat programs protected by JavaScript obfuscation or similar techniques only are visible if visibility is a built-in part of their strategy, such as with fake Police Trojans.

Clarifying the Obfuscation of a VirTool:JS/Obfuscator.EK Trojan

In some ways, detecting VirTool:JS/Obfuscator.EK may be a good thing – since it indicates that your anti-malware software has correctly identified a threatening program, despite that program's efforts to hide itself. However, VirTool:JS/Obfuscator.EK's defenses may prevent your anti-malware tools from identifying a PC threat as specifically as would be appropriate, and can leave the nature of attacks against your PC in doubt. As a general precaution against any threat with uncertain capabilities, malware experts recommend assuming that a VirTool:JS/Obfuscator.EK-compromised PC has the potential to have sensitive information collected from it, such as online account passwords. Third parties having remote access to the infected computer also is a common consequence.

Although changing passwords and re-securing any violated accounts obviously are important concerns, you also should attempt to delete VirTool:JS/Obfuscator.EK through the same anti-malware products that detected VirTool:JS/Obfuscator.EK, before all other tasks. Preventing other PCs from coming into contact with a VirTool:JS/Obfuscator.EK infection through USB devices or local networks also is critical.

VirTool:JS/Obfuscator.EK may be associated with PC threats that have more than one component. Making full use of the most in-depth system-scanning functions available to you will let your security software detect other threats related to VirTool:JS/Obfuscator.EK, which is at least as important as deleting VirTool:JS/Obfuscator.EK, itself.

Use SpyHunter to Detect and Remove PC Threats

If you are concerned that malware or PC threats similar to VirTool:JS/Obfuscator.EK may have infected your computer, we recommend you start an in-depth system scan with SpyHunter. SpyHunter is an advanced malware protection and remediation application that offers subscribers a comprehensive method for protecting PCs from malware, in addition to providing one-on-one technical support service.

Download SpyHunter's Malware Scanner

Note: SpyHunter's free version is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter's malware tool to remove the malware threats. Learn more on SpyHunter. If you would like to uninstall SpyHunter for any reason, please follow these uninstall instructions. To learn more about our policies and practices, visit our EULA, Privacy Policy and Threat Assessment Criteria .

Why can't I open any program including SpyHunter? You may have a malware file running in memory that kills any programs that you try to launch on your PC. Tip: Download SpyHunter from a clean computer, copy it to a USB thumb drive, DVD or CD, then install it on the infected PC and run SpyHunter's malware scanner.