Threat Database Trojans Trojan.BadJoke.OF

Trojan.BadJoke.OF

By CagedTech in Trojans

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 2
First Seen: May 22, 2025
Last Seen: January 11, 2026
OS(es) Affected: Windows

The detection of Trojan.BadJoke.OF on your system indicates a potential security threat that requires immediate attention. This type of malware is designed to compromise the security and integrity of your computer, and it's essential to understand its nature and take steps to remove it.

What Is Trojan.BadJoke.OF?

Trojan.BadJoke.OF is a type of Trojan horse malware, which is a broad category of threats that disguise themselves as legitimate programs or files. The name "Trojan" refers to the malware's ability to infiltrate a system by masquerading as something harmless, much like the Trojan Horse of legend. Trojan horses can be used to install backdoors, keyloggers, or other types of malware on a compromised system, allowing attackers to gain unauthorized access or control.

How Trojan.BadJoke.OF Operates

Once installed on a system, Trojan.BadJoke.OF can operate in various ways, depending on its intended purpose. It may attempt to connect to a command and control server to receive instructions or transmit stolen data. Some Trojans can also spread to other systems through infected files, exploited vulnerabilities, or social engineering tactics. The exact behavior of Trojan.BadJoke.OF will depend on the goals of its creators, but its presence on your system poses a significant risk to your security and privacy.

Symptoms of Infection

Identifying a Trojan infection can be challenging, as these threats often operate stealthily. However, some common symptoms may indicate the presence of malware like Trojan.BadJoke.OF. These can include unusual system behavior, such as unexpected pop-ups, slow performance, or unfamiliar programs running in the background. You might also notice changes to your browser settings or the appearance of suspicious files and folders. If you suspect that your system is infected, it's crucial to take action promptly to minimize potential damage.

How to Remove Trojan.BadJoke.OF

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

Conclusion

The removal of Trojan.BadJoke.OF requires careful and immediate action to protect your system and data. By following the steps outlined above and maintaining vigilance in your online activities, you can significantly reduce the risk of future infections. Keeping your operating system, software, and security tools up to date, along with practicing safe browsing habits, are key components of a robust defense strategy against malware threats like Trojan.BadJoke.OF. Remember, the security of your digital environment is an ongoing process that requires regular attention and proactive measures to stay safe in the ever-evolving landscape of cyber threats.

Analysis Report

General information

Family Name: Trojan.BadJoke.OF
Signature status: No Signature

Known Samples

MD5: b71aaeb2d80e25476aac9640e951bb14
SHA1: a5b2692da3dedd4073de75adb5acb8af8843e528
SHA256: DCCE273DA9789114D9038C4D8AB61C4E0542F1CA3C56D176CC3795E79C4CADBD
File Size: 20.99 KB, 20992 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 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

  • No Version Info
  • x64

Block Information

Total Blocks: 50
Potentially Malicious Blocks: 15
Whitelisted Blocks: 35
Unknown Blocks: 0

Visual Map

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

Windows API Usage

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

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