Threat Database Trojans Trojan.ShellcodeRunner.XK

Trojan.ShellcodeRunner.XK

By CagedTech in Trojans

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 1
First Seen: October 4, 2025
Last Seen: December 1, 2025
OS(es) Affected: Windows

The detection of Trojan.ShellcodeRunner.XK on your system indicates a potential security threat that requires immediate attention. This Trojan-type threat can compromise the integrity of your computer and put your personal data at risk. It is essential to understand the nature of this threat and take prompt action to remove it and prevent future infections.

What Is Trojan.ShellcodeRunner.XK?

Trojan.ShellcodeRunner.XK is a type of malware that can infect your computer without your knowledge or consent. The term "Trojan" refers to a broad category of malware that disguises itself as legitimate software, allowing it to bypass security measures and gain unauthorized access to your system. Once inside, it can cause a range of problems, from stealing sensitive information to disrupting system performance.

How Trojan.ShellcodeRunner.XK Operates

Malware like Trojan.ShellcodeRunner.XK typically operates by exploiting vulnerabilities in software or tricking users into installing it. Once installed, it can communicate with its creators, allowing them to control your computer remotely. This can lead to the installation of additional malware, theft of personal data, or even the use of your computer as part of a larger network of infected machines for malicious activities.

Symptoms of Infection

Identifying a Trojan infection can be challenging, as it often does not display obvious symptoms. However, you might notice that your computer is running slower than usual, or you might see unexpected pop-ups, unfamiliar programs, or changes in your browser settings. Sometimes, the presence of malware can lead to system crashes, freezes, or the failure of certain applications to launch properly.

  • Unexplained changes in system settings or browser configurations
  • Appearance of unfamiliar programs or icons
  • Increased number of pop-ups or unexpected advertisements
  • Slower system performance or frequent crashes

How to Remove Trojan.ShellcodeRunner.XK

  1. Boot your computer in Safe Mode with Networking to limit the malware's ability to interfere with the removal process.
  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 malware and any related components.
  3. Uninstall any suspicious programs 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 malicious extensions or changes made by the malware.
  5. After completing the above steps, reboot your computer and perform another scan with your anti-malware tool to ensure that all traces of the malware have been removed.

Conclusion

Removing Trojan.ShellcodeRunner.XK from your computer requires careful and thorough action. By understanding how this malware operates and following the steps outlined above, you can effectively remove the threat and protect your system from future infections. It's also crucial to maintain good cybersecurity practices, such as regularly updating your software, using strong antivirus protection, and being cautious when opening emails or downloading files from the internet. Taking these precautions can significantly reduce the risk of your computer becoming infected with malware like Trojan.ShellcodeRunner.XK in the future.

Analysis Report

General information

Family Name: Trojan.ShellcodeRunner.XK
Signature status: No Signature

Known Samples

MD5: 7d6a704764d2caf7736c8fcdf948b0fc
SHA1: 2a86881174a3a9411167ba691a19fc2a7b21cb37
SHA256: FFBAD7BEAB3E0888D6957637F2EC80156402AD540E9C92EBB243FE27BEA1F598
File Size: 135.78 KB, 135781 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 has TLS information
  • File is 64-bit executable
  • File is console application (IMAGE_SUBSYSTEM_WINDOWS_CUI)
  • File is either console or GUI application
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  • 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: 119
Potentially Malicious Blocks: 5
Whitelisted Blocks: 114
Unknown Blocks: 0

Visual Map

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

Similar Families

  • Agent.BNDD
  • Agent.KJSA
  • Agent.KPEC
  • Rozena.XT
  • ShellcodeRunner.XJ
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  • ShellcodeRunner.XK

Windows API Usage

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

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