Threat Database Trojans Trojan.Agent.GDSHA

Trojan.Agent.GDSHA

By CagedTech in Trojans

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 1
First Seen: August 22, 2025
Last Seen: September 29, 2025
OS(es) Affected: Windows

The detection of Trojan.Agent.GDSHA on your system indicates a potential security threat that requires immediate attention. This report provides an overview of the threat, its operating methods, symptoms of infection, and steps to remove it from your system.

What Is Trojan.Agent.GDSHA?

Trojan.Agent.GDSHA is a type of malware that falls under the category of Trojans, which are malicious programs designed to gain unauthorized access to a computer system. The name "Trojan" refers to the method of infection, where the malware disguises itself as a legitimate program or file to evade detection. Trojan.Agent.GDSHA, like other Trojans, can be used to steal sensitive information, disrupt system operations, or provide a backdoor for further malicious activities.

How Trojan.Agent.GDSHA Operates

Trojans like Trojan.Agent.GDSHA typically operate by exploiting vulnerabilities in software or tricking users into installing them. Once installed, they can communicate with their command and control servers to receive instructions, which might include downloading additional malware, stealing data, or using the infected computer for malicious activities such as spamming or participating in distributed denial-of-service (DDoS) attacks. The specific operations of Trojan.Agent.GDSHA can vary, but its primary goal is to compromise the security and integrity of the infected system.

Symptoms of Infection

Identifying a Trojan infection can be challenging due to its stealthy nature. However, some common symptoms may indicate the presence of Trojan.Agent.GDSHA or similar malware. These include unexpected changes in system performance, such as slow operation, frequent crashes, or unusual network activity. Additionally, the appearance of unwanted programs, toolbars, or pop-ups can also be indicative of a Trojan infection. It's essential to monitor your system's behavior and take action if you notice any unusual activity.

How to Remove Trojan.Agent.GDSHA

  1. Boot your computer in Safe Mode with Networking to prevent the malware from loading and to allow for a clean environment to perform removal steps.
  2. Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system. This can help identify and remove the Trojan and any associated malware.
  3. Uninstall any suspicious programs or applications that you do not recognize or that were installed around the time of the infection.
  4. Reset your web browsers, such as Chrome, Firefox, or Edge, to their default settings to remove any malicious extensions or settings changes made by the Trojan.
  5. Reboot your computer and perform another full scan with your anti-malware tool to ensure that all components of the Trojan have been removed.

Conclusion

Removing Trojan.Agent.GDSHA requires careful and systematic steps to ensure that all components of the malware are eliminated from your system. It's crucial to stay vigilant and monitor your system's performance after removal to prevent future infections. Keeping your operating system, software, and security tools up to date, as well as practicing safe computing habits such as avoiding suspicious downloads and links, can significantly reduce the risk of malware infections. If you're unsure about any part of the removal process, consider seeking help from a professional to ensure your system is thoroughly cleaned and protected.

Analysis Report

General information

Family Name: Trojan.Agent.GDSHA
Signature status: No Signature

Known Samples

MD5: 2e2669a33eace6d3a59a8e45c3324fdf
SHA1: 18291592b731ac519bd371d25beafb092dc72570
SHA256: 6E6CE6A918228FC609ECD2682CEA75E470CFBD3AA2A0A5BAFAD40A7DACBDA51F
File Size: 55.30 KB, 55296 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have debug information
  • 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)
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  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

File Traits

  • No Version Info
  • x86

Block Information

Total Blocks: 209
Potentially Malicious Blocks: 16
Whitelisted Blocks: 191
Unknown Blocks: 2

Visual Map

0 x x x x x x x ? ? 0 0 x x x x x x 0 x x x 0 0 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 1 1 0 0 0 1 0 0 0 2 3 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 2 2 1 0 0 1 0 0 1 1 1 0 0 0 0 0 1 0 0 0 0 1 1 0 0 1 0 0 0 0 0 0 0 0 1 1 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 0 0 1 0 1 0 0 0 0 0 2 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
Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144
Generic Write,Read Attributes,Delete,LEFT 262144
Generic Write,Read Data,Read Attributes,Delete,LEFT 262144
c:\users\user\appdata\local\temp\dfil1.exe Generic Write,Read Attributes
c:\users\user\appdata\local\temp\dfil2.exe Generic Write,Read Attributes
c:\users\user\appdata\local\temp\dfil3.exe Generic Write,Read Attributes
c:\users\user\appdata\local\temp\dfil4.exe Generic Write,Read Attributes
c:\users\user\desktop\documents backup.lnk Generic Read,Write Data,Write Attributes,Write extended,Append data
c:\users\user\desktop\update.exe Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144
c:\users\user\desktop\update.exe Synchronize,Write Attributes
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c:\users\user\downloads\update.exe Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144
c:\users\user\downloads\update.exe Synchronize,Write Attributes
c:\users\user\update.exe Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144
c:\users\user\update.exe Synchronize,Write Attributes
c:\windows\appcompat\programs\amcache.hve Read Data,Read Control,Write Data
c:\windows\appcompat\programs\amcache.hve.log1 Read Data,Write Data
c:\windows\appcompat\programs\amcache.hve.log2 Read Data,Write Data

Registry Modifications

Key::Value Data API Name
HKLM\software\classes\txtfile\shell\open\command:: "c:\users\user\downloads\18291592b731ac519bd371d25beafb092dc72570_0000055296" "%1" RegNtPreCreateKey

Windows API Usage

Category API
Network Wininet
  • InternetOpen
  • InternetOpenUrl
  • InternetReadFile
Process Shell Execute
  • CreateProcess
Network Lmaccess
  • NetShareEnum

Shell Command Execution

C:\Users\Tasmedts\AppData\Local\Temp\DfIl1.exe (NULL)
C:\Users\Tasmedts\AppData\Local\Temp\DfIl2.exe (NULL)
C:\Users\Tasmedts\AppData\Local\Temp\DfIl3.exe (NULL)
C:\Users\Tasmedts\AppData\Local\Temp\DfIl4.exe (NULL)

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