Threat Database Trojans Trojan.Agent.IOI

Trojan.Agent.IOI

By CagedTech in Trojans

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 1
First Seen: September 26, 2025
Last Seen: October 2, 2025
OS(es) Affected: Windows

The detection of Trojan.Agent.IOI on your system indicates a potential security threat. This type of malware is designed to compromise the integrity of your computer, allowing unauthorized access and control. It is essential to understand the nature of this threat and take immediate action to remove it and prevent further damage.

What Is Trojan.Agent.IOI?

Trojan.Agent.IOI is a type of Trojan horse malware, which is a broad category of malicious software that disguises itself as legitimate programs. The name "Trojan.Agent.IOI" suggests that it is a type of agent-based malware, but without more specific information, it is difficult to determine its exact characteristics or behavior. Generally, Trojans are designed to allow unauthorized access to a computer system, often for the purpose of stealing sensitive information, installing additional malware, or providing a backdoor for remote control.

How Trojan.Agent.IOI Operates

Like other Trojans, Trojan.Agent.IOI likely operates by exploiting vulnerabilities in software or tricking users into installing it. Once installed, it may communicate with its creators or other malicious servers to receive instructions or transmit stolen data. The exact mechanisms used by Trojan.Agent.IOI are unknown, but it is clear that it poses a significant threat to the security and integrity of your system. Trojans can be particularly dangerous because they often remain hidden, making them difficult to detect without specialized security software.

Symptoms of Infection

Systems infected with Trojan.Agent.IOI may exhibit a range of symptoms, including but not limited to, slow performance, frequent crashes, and unusual network activity. You might also notice unfamiliar programs or files on your computer, changes to your browser settings, or unexpected pop-ups and advertisements. However, some Trojans are designed to operate silently, making them harder to detect based on symptoms alone. Therefore, regular scans with reputable security software are crucial for early detection and removal.

How to Remove Trojan.Agent.IOI

  1. Boot your computer in Safe Mode with Networking to limit the malware's ability to interfere with the removal process.
  2. Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter, to detect and remove all traces of the malware.
  3. Uninstall any suspicious programs that were installed around the time of the suspected infection. Be cautious and only remove programs you are certain are malicious or unnecessary.
  4. Reset your web browsers (Chrome, Firefox, Edge, etc.) 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 software to ensure that all components of the malware have been removed.

Conclusion

The removal of Trojan.Agent.IOI requires immediate attention to prevent further damage to your system and potential theft of sensitive information. By following the steps outlined above and maintaining vigilant security practices, such as regularly updating your operating system and security software, you can significantly reduce the risk of future infections. Remember, prevention and early detection are key in the fight against malware. Always be cautious when downloading software or clicking on links from unknown sources, and consider investing in comprehensive security solutions to protect your digital assets.

Analysis Report

General information

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

Known Samples

MD5: 8c1a9b7e46c3e340bdcf1b81835c1fa9
SHA1: be26d5eeb704ad787371c5104f0d963c662d8bda
SHA256: FA3B4CFD22DAFAAC5A82CD3FA2C8E127848932377B7395B6291EA0D141627411
File Size: 548.40 KB, 548400 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 Icons

File Traits

  • fptable
  • GetConsoleWindow
  • HighEntropy
  • No Version Info
  • WriteProcessMemory
  • x86

Block Information

Total Blocks: 873
Potentially Malicious Blocks: 7
Whitelisted Blocks: 851
Unknown Blocks: 15

Visual Map

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 0 0 0 0 0 ? ? 0 0 x ? ? ? x x ? ? ? ? 0 0 0 ? 0 ? ? 0 0 0 ? ? ? 0 0 0 x 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 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 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 0 0 0 0 0 0 0 0 0 0 1 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 3 1 1 1 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 2 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 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 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 1 0 0 1 0 0 0 0 0 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 0 0 0 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 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 0 0 0 0 0 0 2 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 2 0 0 0 0 2 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 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 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 0 0 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 2 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 0 0 0 0 0 0 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 0 0 0 2 2 0 2 2 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 1 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 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 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 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 0 2 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 0 0 0 0 0 0 0 0 0 0 0 0 0 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 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 2 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 0 1 0 0 0 0
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

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Files Modified

File Attributes
c:\users\user\appdata\roaming\systemsync\svchost.exe Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144

Windows API Usage

Category API
Process Manipulation Evasion
  • NtUnmapViewOfSection
  • VirtualAllocEx
Process Shell Execute
  • CreateProcess
Encryption Used
  • BCryptOpenAlgorithmProvider
  • CryptAcquireContext

Shell Command Execution

C:\Users\Rbkcsxik\AppData\Roaming\SystemSync\svchost.exe (NULL)
C:\Users\Rbkcsxik\AppData\Roaming\SystemSync\svchost.exe

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