Threat Database Trojans Trojan.Downloader.GDT

Trojan.Downloader.GDT

By CagedTech in Trojans

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 2
First Seen: August 30, 2025
Last Seen: January 21, 2026
OS(es) Affected: Windows

The detection of Trojan.Downloader.GDT on your system indicates a potential security threat that requires immediate attention. This type of malware is designed to download and install additional malicious software on your computer, which can lead to a range of problems, including data theft, system crashes, and compromised security. In this report, we will provide an overview of Trojan.Downloader.GDT, its operating methods, symptoms of infection, and steps to remove it from your system.

What Is Trojan.Downloader.GDT?

Trojan.Downloader.GDT is a type of Trojan horse malware that is designed to download and install additional malicious software on your computer. The name "Trojan" refers to the fact that this type of malware disguises itself as a legitimate program or file, allowing it to evade detection and gain access to your system. The "Downloader" part of the name indicates that this malware is capable of downloading and installing additional malicious software, which can lead to a range of problems.

How Trojan.Downloader.GDT Operates

Trojan.Downloader.GDT typically operates by exploiting vulnerabilities in your system or tricking you into installing it. Once installed, it can download and install additional malicious software, including viruses, spyware, and adware. This malware can also modify system settings, steal sensitive information, and disrupt system performance. It is often spread through email attachments, infected software downloads, or exploited vulnerabilities in web browsers.

Symptoms of Infection

Symptoms of a Trojan.Downloader.GDT infection can vary, but common signs include slow system performance, unexpected pop-ups and ads, and unfamiliar programs or icons on your desktop. You may also experience system crashes, freezes, or errors, as well as unexpected changes to your system settings. If you suspect that your system is infected with Trojan.Downloader.GDT, it is essential to take immediate action to remove it.

How to Remove Trojan.Downloader.GDT

  1. Boot your system in Safe Mode with Networking to prevent the malware from loading and to allow for a more effective removal process.
  2. Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system and detect and remove any malicious software.
  3. Uninstall any suspicious programs or applications that you do not recognize or that were installed without your knowledge or consent.
  4. Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any malicious extensions or add-ons.
  5. Reboot your system and perform a follow-up scan to ensure that all malicious software has been removed.

Conclusion

Removing Trojan.Downloader.GDT from your system requires careful attention to detail and a thorough understanding of the malware's operating methods. By following the steps outlined in this report, you can help to ensure that your system is free from this malicious software and that your sensitive information is protected. Remember to always be cautious when downloading software or opening email attachments, and to keep your anti-malware software up to date to prevent future infections.

Analysis Report

General information

Family Name: Trojan.Downloader.GDT
Signature status: No Signature

Known Samples

MD5: 5fb2c7e94cda1487faf31924b8337898
SHA1: 95a01a15f5c0c7f2a79e431cd6c3fdca0a51dc39
SHA256: F3007C5D6470CC859C0676E3C5E73D6745CA8058B25F5E99FDE8E40EA6981356
File Size: 75.78 KB, 75776 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have exports table
  • File doesn't have security information
  • File is 32-bit executable
  • File is either console or GUI application
  • File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
  • File is Native application (NOT .NET application)
  • File is not packed
  • IMAGE_FILE_DLL is not set inside PE header (Executable)
  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

File Traits

  • No Version Info
  • x86

Block Information

Total Blocks: 140
Potentially Malicious Blocks: 15
Whitelisted Blocks: 125
Unknown Blocks: 0

Visual Map

0 0 0 0 0 0 0 0 x 0 x 0 0 x 0 0 0 x x 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 x x x x 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 x 0 0 x x x x 0 x 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

Files Modified

File Attributes
c:\users\user\appdata\roaming\updater_log.txt Generic Write,Read Attributes

Windows API Usage

Category API
Network Urlomon
  • URLDownloadToFile

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