Exterminate It! Antimalware


Known threats:700,086 Last Update:March 16, 12:51


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Aliases of Win32.TrojanDownloader.Agent (AKA):

[Kaspersky]TrojanDownloader.Win32.Agent.ab, TrojanDownloader.Win32.Agent.ad
[Eset]Win32/TrojanDownloader.Agent.H trojan, Win32/TrojanDownloader.Agent.BF trojan
[Panda]Adware/SpywareNuker, Adware/BlazeFind, Adware/WUpd, Dialer.LS

How to Remove Win32.TrojanDownloader.Agent from Your Computer^

To completely purge Win32.TrojanDownloader.Agent from your computer, you need to delete the files and folders associated with Win32.TrojanDownloader.Agent. These files and folders are respectively listed in the Files and Folders sections on this page.

For instructions on deleting the Win32.TrojanDownloader.Agent files and folders, see the following section How to Delete Win32.TrojanDownloader.Agent Files (.exe, .dll, etc.).

How to Delete Win32.TrojanDownloader.Agent Files (.exe, .dll, etc.)^

The files and folders associated with Win32.TrojanDownloader.Agent are listed in the Files and Folders sections on this page.

To delete the Win32.TrojanDownloader.Agent files and folders:

  1. Using your file explorer, browse to each file and folder listed in the Folders and Files sections.
  2. Note: The paths use certain special folders (conventions) such as [%PROGRAM_FILES%]. Please note that these conventions are depending on Windows Version / Language. These conventions are explained here.
  3. Select the file or folder and press SHIFT+Delete on the keyboard.
  4. Click Yes in the confirm deletion dialog box.
  5. IMPORTANT: If a file is locked (in use by some application), its deletion will fail (the Windows will display a corresponding message).You can delete such locked files with the RemoveOnReboot utility. To delete a locked file, right-click on the file, select Send To->Remove on Next Reboot on the menu and restart your computer. You can install the RemoveOnReboot utility from here.


A trojan is a program that is disguised as legitimate software but is designed to carry out some harmful actions on the infected computer.

Unlike viruses and worms, trojans don’t replicate but they can be just as destructive.

These days trojans are very common. Trojans are divided into a number different categories based on their function or type of damage.

Be Aware of the Following Trojan Threats:

InstallDisk, Bat.Hommie, Virri, Bancos.GTH, Bancos.GJF.


Software that is designed to launch advertisements, frequently pop-up ads, on a user’s computer and/or to redirect search results to promotional Web sites. Adware programs are often built into freeware or shareware programs, where the adware creates an indirect ‘charge’ for using the free program. Sometimes a trojan can silently download an adware program from a Web site and install it onto a user’s machine.

Hacker tools, or Browser Hijackers, can also download an adware program by exploiting a web browser’s vulnerability. Browser Hijackers may tamper with the browser settings, redirect incorrect or incomplete URLs to unwanted Web sites, or change the default home page. They can also re-direct a user’s searches to “pay-to-view” (often pornographic) Web sites.

Typically, many adware programs do not leave any marks of their presence in the system: they are not listed on Start | Programs; they add no icons to the system tray; and they don’t show up on the task list. In addition, adware programs seldom provide an uninstallation procedure, and attempts at manually removing them frequently result in failure of the original carrier program.

Be Aware of the Following Adware Threats:

CommAd, MyBHOSpy, GameBar, hz, CasinoRewards.


A type of trojan. The primary purpose of downloaders is to install malicious code on a user’s computer. However, they can enable other malicious uses. For example, they can be used to continually download new versions of malicious code, adware, or “pornware.” They are also used frequently used to exploit the vulnerabilities of Internet Explorer.

Downloaders are typically written in script languages such as VBS or JavaScript.

Be Aware of the Following Downloader Threats:

Zlob.ve, Caterpillar, JS.Died, Savesettings!Trojan, Jack.the.Ripper.

How Did My PC Get Infected with Win32.TrojanDownloader.Agent?^

The following are the most likely reasons why your computer got infected with Win32.TrojanDownloader.Agent:

  • Your operating system and Web browser's security settings are too lax.
  • You are not following safe Internet surfing and PC practices.

Downloading and Installing Freeware or Shareware

Small-charge or free software applications may come bundled with spyware, adware, or programs like Win32.TrojanDownloader.Agent. Sometimes adware is attached to free software to enable the developers to cover the overhead involved in created the software. Spyware frequently piggybacks on free software into your computer to damage it and steal valuable private information.

Using Peer-to-Peer Software

The use of peer-to-peer (P2P) programs or other applications using a shared network exposes your system to the risk of unwittingly downloading infected files, including malicious programs like Win32.TrojanDownloader.Agent.

Visiting Questionable Web Sites

When you visit sites with dubious or objectionable content, trojans-including Win32.TrojanDownloader.Agent, spyware and adware, may well be automatically downloaded and installed onto your computer.

Detecting Win32.TrojanDownloader.Agent^

The following symptoms signal that your computer is very likely to be infected with Win32.TrojanDownloader.Agent:

PC is working very slowly

Win32.TrojanDownloader.Agent can seriously slow down your computer. If your PC takes a lot longer than normal to restart or your Internet connection is extremely slow, your computer may well be infected with Win32.TrojanDownloader.Agent.

New desktop shortcuts have appeared or the home page has changed

Win32.TrojanDownloader.Agent can tamper with your Internet settings or redirect your default home page to unwanted web sites. Win32.TrojanDownloader.Agent may even add new shortcuts to your PC desktop.

Annoying popups keep appearing on your PC

Win32.TrojanDownloader.Agent may swamp your computer with pestering popup ads, even when you're not connected to the Internet, while secretly tracking your browsing habits and gathering your personal information.

E-mails that you didn't write are being sent from your mailbox

Win32.TrojanDownloader.Agent may gain complete control of your mailbox to generate and send e-mail with virus attachments, e-mail hoaxes, spam and other types of unsolicited e-mail to other people.