Trojan-Dropper:W32/Agent.FLN

Classification

Malware

Trojan-Dropper

W32

Trojan-Dropper:W32/Agent.FLN, TrojanDropper:Win32/Alureon.gen!B (Microsoft)

Summary

This type of trojan contains one or more malicious programs, which it secretly installs and executes.

Removal

Automatic action

Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.

Find out more

Knowledge Base

Find the latest advice in our Community Knowledge Base.

User Guide

See the user guide for your product on the Help Center.

Contact Support

Chat with or call an expert for help.

Submit a sample

Submit a file or URL for further analysis.

Technical Details

This trojan-dropper masquerades as a Homeview installer. In reality, its main purpose is to install Trojan:W32/DNSChanger.ARNF onto the system.

Execution

Upon execution, it will display the following fake screens, to mimic the legitimate installation sequence for Homeview:

Installation

While the fake installation screens are distracting user, the malware creates and executes this file:

  • %temp%\jah339312.exe

This file is detected as Trojan:W32/DNSChanger.ARNF.If the fake Homeview installation sequence is completed, a new folder named %Program Files%\homeview is created and this file is added to it:

  • %Program Files%\homeview\Uninstall.exe

This uninstaller is capable of removing the Homeview-related registry entries and deleting itself and its folder. It is however incapable of removing Trojan:W32/DNSChanger.ARNF, or the changes that malware makes to the system.

Registry Modifications

Creates these keys:

  • HKEY_CLASSES_ROOT\homeview\CLSID (default) = "{6BF52A52-394A-11D3-B153-00C04F79FAA6}"
  • HKEY_CURRENT_USER\Software\homeview (default) = "%Program Files%\homeview"
  • HKEY_CURRENT_USER\Software\{NSINAME} Start Menu Folder = "homeview"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\homeview\CLSID (default) = "{6BF52A52-394A-11D3-B153-00C04F79FAA6}"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\homeview UninstallString = "%Program Files%\homeview\Uninstall.exe" InstallLocation = "%Program Files%\homeview" DisplayName = "homeview" DisplayIcon = "%Program Files%\homeview\Uninstall.exe,0"

Date Created: -

Date Last Modified: -