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Remove Zusy Facebook Trojan from An Infected Computer

Facebook_F_iconA Trojan which uses false Facebook messages to expose user data and account credentials has appeared, dubbed Zusy by ESG malware researchers. The Trojan has recently seen a rise in popularity, and it is widespread via spam pessages on Facebook. As soon as it penetrates the computer, Zusy may take advantage of the infected machine in a malicious way to spread further on other Facebook accounts. Users who have seen spam messages with file names like, for example, “IMG_DSC1242” sent to them via Facebook chat along with a chat message, like “ahaha” should not open the photo before checking it for malware. In case you believe your computer has been infected with the Zusy threat, we advise you to take advantage of the instructions in this article and permanently delete Zusy Facebook Trojan from your computer.

Threat Summary

NameZusy Facebook Trojan
TypeTrojan / Infostealer
Short DescriptionSteals Facebook credentials and replicates via spam messages from the infected PC.
SymptomsThe virus uses a spam message along with a malicious .ZIP file attached in which there is the same file under a .JAR extension.
Distribution MethodVia malicious attachments sent in Facebook.
Detection Tool See If Your System Has Been Affected by Zusy Facebook Trojan

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User ExperienceJoin our forum to discuss Zusy Trojan.

Zusy Facebook Trojan – How Did I Get It

Facebook malware has seen as a rapidly growing threat by malware researchers. The virus has also been reported to cause massive infections on user systems via infected computers. Such infected computers may get an executable file slipped onto their computer via a malicious .ZIP file pretending to be an archive of an image or several images. In it, malware researchers report discovering a .jar partial file, and as soon as this file is opened, it activates a malicious script. This malicious script then connects to the cyber-criminals’ malicious server and downloads Zusy Facebook Trojan onto it.

Zusy Facebook Trojan – How Does It Work

Zusy Facebook Trojan is designed to be based on the logic behind Botnet malware – to replicated from an infected system to a victim system automatically. So in case you start to see messages which are sent from your Facebook profile along with file attachments or a web link, you should immediately scan your computer for malware.

Not only this, but Zusy Facebook Trojan may steal information as well. Here is the type of information this Trojan may get to if it has been configured to do it:

  • User Credentials.
  • Financial Information.
  • Personal Information.
  • System Information.

As soon as this is done, Zusy may also download other malware on your computer, making it vulnerable from various type of threats, like ransomware – the worst of them.

ESG malware researchers have estimated a 42% rise in infections by this malware from their statistics and databases. This means that users should be aware in case they see .ZIP files with .JAR files embedded in them:

Remove Zusy Facebook Trojan from Your Computer

In case you have become a victim of this Trojan on your computer, we strongly advise you to IMMEDIATELY change your credentials from a safe computer or a smartphone or any other device you can get your hands on. We also strongly advise you to isolate Zusy malware by entering the Safe Mode of your computer to stop it from actively running on it. From there you may manually hunt down Zusy’s malicious files and kill it permanently.

However, you should also be advised that Zusy may download other malware on your computer and modify your Windows Registry editor’s entries. This is why, besides following the instructions below, we also recommend you to download and scan your computer with an advanced anti-malware program to be fully sure that all of Zusy’s files have been detected and removed from your computer.

Manually delete Zusy Facebook Trojan from your computer

Note! Substantial notification about the Zusy Facebook Trojan threat: Manual removal of Zusy Facebook Trojan requires interference with system files and registries. Thus, it can cause damage to your PC. Even if your computer skills are not at a professional level, don’t worry. You can do the removal yourself just in 5 minutes, using a malware removal tool.

1. Boot Your PC In Safe Mode to isolate and remove Zusy Facebook Trojan files and objects.
2. Find malicious files created by Zusy Facebook Trojan on your PC.
3. Fix registry entries created by Zusy Facebook Trojan on your PC.

Automatically remove Zusy Facebook Trojan by downloading an advanced anti-malware program

1. Remove Zusy Facebook Trojan with SpyHunter Anti-Malware Tool
2. Back up your data to secure it against infections and file encryption by Zusy Facebook Trojan in the future
Optional: Using Alternative Anti-Malware Tools

Vencislav Krustev

A network administrator and malware researcher at SensorsTechForum with passion for discovery of new shifts and innovations in cyber security. Strong believer in basic education of every user towards online safety.

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