Threat Database Trojans Trojan.Agent.ZFF

Trojan.Agent.ZFF

By CagedTech in Trojans

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 1
First Seen: January 2, 2022
Last Seen: December 15, 2025
OS(es) Affected: Windows

The detection of Trojan.Agent.ZFF 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 system.

What Is Trojan.Agent.ZFF?

Trojan.Agent.ZFF is identified as a Trojan-type threat, which is a broad category of malware designed to deceive users into installing it on their systems. Unlike viruses, Trojans do not replicate themselves but can cause significant harm by allowing unauthorized access to your computer, stealing sensitive information, or disrupting system operations. The name "Trojan.Agent.ZFF" suggests it is a type of Trojan agent, which typically acts as a backdoor, allowing remote access and control over the infected system.

How Trojan.Agent.ZFF Operates

Trojan.Agent.ZFF, like other Trojans, operates by disguising itself as legitimate software or embedding itself within legitimate programs. Once installed, it can execute a variety of malicious actions, depending on its design and the intentions of its creators. This can include data theft, installation of additional malware, or manipulation of system settings for malicious purposes. The specific operations of Trojan.Agent.ZFF can vary, but its primary goal is to compromise system security and user privacy.

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.Agent.ZFF or similar malware on your system. These include unexpected system crashes, slow performance, unfamiliar programs or icons, unexpected changes in system settings, or unusual network activity. If you have noticed any of these symptoms, it is crucial to take immediate action to protect your system and data.

How to Remove Trojan.Agent.ZFF

  1. Boot into Safe Mode with Networking: This will help prevent the malware from loading and give you a cleaner environment to work in. Restart your computer, and as it boots up, press the F8 key repeatedly until you see the Advanced Boot Options menu. Select Safe Mode with Networking and press Enter.
  2. Perform a Full Scan with a Reputable Tool: Utilize a trusted anti-malware tool, such as SpyHunter, to scan your system thoroughly. Ensure the tool is updated with the latest definitions before starting the scan. This step is crucial for detecting and removing all components of the Trojan.
  3. Uninstall Suspicious Programs: Go through your installed programs and remove any that you do not recognize or that were installed around the time you suspect the infection occurred. Be cautious and only uninstall programs you are certain are not needed.
  4. Reset Your Browser Settings: Malware often alters browser settings. Resetting your browsers (Google Chrome, Mozilla Firefox, Microsoft Edge) to their default settings can help remove unwanted extensions and settings. You can usually find this option in the browser's settings or preferences menu.
  5. Reboot and Re-scan: After completing the above steps, restart your computer in normal mode and perform another full scan with your anti-malware tool to ensure all threats have been removed.

Conclusion

Removing Trojan.Agent.ZFF from your system requires careful and systematic steps to ensure all components of the malware are eliminated. By following the guidance provided, you can significantly reduce the risk of further damage and protect your personal data. It is also essential to adopt preventive measures, such as keeping your operating system and software up-to-date, using strong antivirus protection, and being cautious when downloading and installing software from the internet. Remember, vigilance and proactive security practices are key to maintaining a secure computing environment.

Analysis Report

General information

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

Known Samples

MD5: 0f41e2e34c12351eeb9b00205cee4b8f
SHA1: e2ee847bed7c544ea263ee795bdca38b9968e18c
SHA256: AB9ECFC65DC9DF3090D5CB6BBA84721443F12C25564704987B51702DB44DEF8D
File Size: 1.32 MB, 1318461 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have exports table
  • File doesn't have resources
  • File is 64-bit executable
  • File is console application (IMAGE_SUBSYSTEM_WINDOWS_CUI)
  • File is either console or GUI application
  • 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

  • 00 section
  • 2+ executable sections
  • HighEntropy
  • No Version Info
  • x64

Block Information

Total Blocks: 5
Potentially Malicious Blocks: 1
Whitelisted Blocks: 4
Unknown Blocks: 0

Visual Map

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

Similar Families

  • Rozena.FSE

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtWaitLowEventPair
  • ntdll.dll!NtWriteFile
  • UNKNOWN

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