Zlob Description

Zlob is a kind of malicious software known as a Trojan horse. This is a kind of attacker that exploits vulnerabilities in a computer to wreak havoc. The first time the Zlob Trojan was identified was in the last months of 2005. Since the middle of 2006, this Trojan has gained considerable attention from computer security experts.


Who Created the Zlob Trojan?

The Zlob Trojan is thought to have been created by hackers in the Russian Federation. It is still not known exactly who created the Zlob Trojan, but it has been used in many of the criminal activities of the Russian Business Network. This is a shadowy criminal organization dedicated to providing hosting for criminal activities, child pornography, and distributing harmful malware.


How Does the Zlob Trojan Get into a Computer?

Like many Trojans, the Zlob Trojan is often disguised as an ActiveX video codec. There are phony adult video websites dedicated to spreading the Zlob Trojan. They will require that the computer user download a specific, fake codec to view any videos. Other ways the Zlob Trojan has been known to infect computers is through a Java attack in fake online malware scans and by downloading the file "atnvrsinstall.exe". This file is designed to look like a legitimate Microsoft anti-virus.


What Happens When the Zlob Trojan Attacks a Computer?

Once the computer user has inadvertently installed the fake codec, the first symptom is usually a multitude of pop-up and advertisement prompting the computer user to download a rogue anti-spyware program. Clicking any of the advertisements will download a rogue anti-spyware application which contains the Zlob Trojan in itself. Well-known rogue anti-spyware programs associated with Zlob are XP Antivirus 2012, XP Antispyware 2012, XP Security 2012, Personal Shield Pro Version 2.20, Vista Anti-virus 2012, Vista Security 2012, and Win 7 Security 2012. Some variants of the Zlob Trojan can also alter the Windows Registry and hack routers associated with the infected computer to redirect Internet traffic to malicious domains.


Variants and Clones of the Zlob Trojan

There are multiple versions of the Zlob Trojan. RSPlug, a dangerous Trojan that affects Apple computers, is very similar to Zlob, and though to come from the same creators. Other well known versions of Zlob are Vundo, VirtuMonde, DNSChanger, which specifically changes DNS settings to redirect Internet traffic.


What Can You Do if Your Computer Is Infected With the Zlob Trojan?

A properly updated legitimate anti-virus application will usually detect and remove the Zlob Trojan. Make sure to download your security software and all its updates directly from the manufacturer. The Zlob Trojan poses a severe security problem and should be removed immediately.

Aliases: Trojan.DL.Zlob.ATT, MalwareScope.Downloader.Zlob.1, TrojanDownloader.Win32.Zlob.98CE, Trojan/Puper.dll, Troj/Zlobie-Gen [Sophos], Trojan.eCodec [Prevx1], Adware/GoldCodec [Panda], Win32/TrojanDownloader.Zlob.AKO, Zlob (threat-c) [Microsoft], Puper.dll.gen [McAfee], Trojan-Downloader.Win32.Zlob.bba [Kaspersky], Zlobie!tr [Fortinet], Downloader.Zlob.bba [eWido], Win32.Win32.Zlob.bba [eSafe] and Trojan.Fakealert.217 [DrWeb].

Do You Suspect Your PC May Be Infected with Zlob & Other Threats? Scan Your PC with SpyHunter

SpyHunter is a powerful malware remediation and protection tool designed to help provide PC users with in-depth system security analysis, detection and removal of a wide range of threats like Zlob as well as a one-on-one tech support service. Download SpyHunter's FREE Malware Remover
Note: SpyHunter's scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter's malware removal tool to remove the malware threats. Read more on SpyHunter. Free Remover allows you to run a one-off scan and receive, subject to a 48-hour waiting period, one remediation and removal. Free Remover subject to promotional details and Special Promotion Terms. To understand our policies, please also review our EULA, Privacy Policy and Threat Assessment Criteria. If you no longer wish to have SpyHunter installed on your computer, follow these steps to uninstall SpyHunter.

Security Doesn't Let You Download SpyHunter or Access the Internet?

Solutions: Your computer may have malware hiding in memory that prevents any program, including SpyHunter, from executing on your computer. Follow to download SpyHunter and gain access to the Internet:
  • Use an alternative browser. Malware may disable your browser. If you're using IE, for example, and having problems downloading SpyHunter, you should open Firefox, Chrome or Safari browser instead.
  • Use a removable media. Download SpyHunter on another clean computer, burn it to a USB flash drive, DVD/CD, or any preferred removable media, then install it on your infected computer and run SpyHunter's malware scanner.
  • Start Windows in Safe Mode. If you can not access your Window's desktop, reboot your computer in "Safe Mode with Networking" and install SpyHunter in Safe Mode.
  • IE Users: Disable proxy server for Internet Explorer to browse the web with Internet Explorer or update your anti-spyware program. Malware modifies your Windows settings to use a proxy server to prevent you from browsing the web with IE.
If you still can't install SpyHunter? View other possible causes of installation issues.

Technical Information

File System Details

Zlob creates the following file(s):
# File Name Size MD5
1 iesplugin.dll 25,600 e46bbd7733738efa1a3516ef1d4b19d3
More files

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Enigmasoftware.com is not associated, affiliated, sponsored or owned by the malware creators or distributors mentioned on this article. This article should NOT be mistaken or confused in being associated in any way with the promotion or endorsement of malware. Our intent is to provide information that will educate computer users on how to detect, and ultimately remove, malware from their PC with the help of SpyHunter and/or manual removal instructions provided on this article.

This article is provided "as is" and to be used for educational information purposes only. By following any instructions on this article, you agree to be bound by the disclaimer. We make no guarantees that this article will help you completely remove the malware threats on your PC. Spyware changes regularly; therefore, it is difficult to fully clean an infected machine through manual means.

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