Threat Database Trojans Trojan.Gigex.A

Trojan.Gigex.A

By CagedTech in Trojans

Threat Scorecard

Popularity Rank: 13,162
Threat Level: 80 % (High)
Infected Computers: 29
First Seen: October 15, 2022
Last Seen: July 14, 2026
OS(es) Affected: Windows

The detection of Trojan.Gigex.A on your system indicates a potential security threat that requires immediate attention. This report aims to provide you with a comprehensive understanding of the threat, its operation, symptoms, and most importantly, steps to remove it from your computer.

What Is Trojan.Gigex.A?

Trojan.Gigex.A is identified as a Trojan-type threat. Trojans are malicious programs that deceive users into installing them by disguising themselves as legitimate software. Once installed, they can cause significant harm, including data theft, system compromise, and the installation of additional malware. The name "Trojan.Gigex.A" itself does not directly indicate a specific malware family but suggests it is a variant of Trojan malware.

How Trojan.Gigex.A Operates

Trojan.Gigex.A, like other Trojans, operates by exploiting user trust or system vulnerabilities to gain unauthorized access to a computer. It may spread through various means, including but not limited to, opening malicious email attachments, downloading software from untrusted sources, or visiting compromised websites. Once inside a system, it can perform a range of malicious activities, from stealing sensitive information to using the infected computer as a botnet for further malicious activities.

Symptoms of Infection

Identifying a Trojan infection can be challenging due to its stealthy nature. However, there are several symptoms that may indicate the presence of Trojan.Gigex.A or similar malware on your system. These include unexpected system crashes, slow system performance, unfamiliar programs or icons, pop-ups, and unusual network activity. If you notice any of these symptoms, it is crucial to take immediate action to protect your system and data.

  • Unexplained changes in system settings or the appearance of unfamiliar programs.
  • Frequent pop-ups or unwanted advertisements.
  • Slow system performance or frequent crashes.
  • Unusual or unauthorized network activity.

How to Remove Trojan.Gigex.A

  1. Enter Safe Mode with Networking: Restart your computer and enter Safe Mode. This will limit the malware's ability to interfere with the removal process and allow you to download necessary tools.
  2. Perform a Full Scan with a Reputable Tool: Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system. This can help identify and remove all components of the Trojan.
  3. Uninstall Suspicious Programs: Go through your installed programs and uninstall any that you do not recognize or that were installed around the time you suspect the infection occurred.
  4. Reset Your Browsers: If your browsers (such as Chrome, Firefox, or Edge) have been affected, reset them to their default settings. This can help remove any malicious extensions or settings changes made by the Trojan.
  5. Reboot and Re-scan: After completing the above steps, reboot your computer and perform another full scan with your anti-malware tool to ensure that all traces of the malware have been removed.

Conclusion

Removing Trojan.Gigex.A requires a systematic approach to ensure that all components of the malware are eliminated from your system. By following the steps outlined in this report and maintaining good cybersecurity practices, such as regularly updating your operating system and antivirus software, being cautious with email attachments and downloads, and using strong, unique passwords, you can protect your system from future infections. Remember, vigilance and proactive measures are key to safeguarding your digital environment.

Analysis Report

General information

Family Name: Trojan.Gigex.A
Signature status: No Signature

Known Samples

MD5: 1b38c5420ffa50cdf6e088e7fad21696
SHA1: 3393dab5776e0cb3c59d3d56ab8c4c9104725dad
SHA256: 59D231E9005E8011D9B0C54143D0374EA7239F9A76CC4EBB02200A8183A40CF1
File Size: 38.01 KB, 38012 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 relocations information
  • File doesn't have resources
  • 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)
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  • 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

  • 2+ executable sections
  • No Version Info
  • x86

Block Information

Total Blocks: 11
Potentially Malicious Blocks: 1
Whitelisted Blocks: 1
Unknown Blocks: 9

Visual Map

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

Files Modified

File Attributes
c:\windows\syswow64\gigu.eml Generic Write,Read Attributes
c:\windows\syswow64\gigu.exe Generic Read,Write Data,Write Attributes,Write extended,Append data
c:\windows\syswow64\gigu.exe Generic Write,Read Attributes
c:\windows\ugig.exe Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144

Registry Modifications

Key::Value Data API Name
HKLM\software\wow6432node\microsoft\windows\currentversion\run::i-worm.gigu uGiG.eXe RegNtPreCreateKey

Windows API Usage

Category API
Process Manipulation Evasion
  • ReadProcessMemory
User Data Access
  • GetUserName

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