Threat Database Trojans Trojan.Kryptik.NPE

Trojan.Kryptik.NPE

Threat Scorecard

Popularity Rank: 26,016
Threat Level: 80 % (High)
Infected Computers: 3
First Seen: June 5, 2026
Last Seen: October 11, 2026
OS(es) Affected: Windows

Trojan.Kryptik.NPE is a dangerous Trojan horse infection that targets Windows computers. With a danger rating of 8 out of 10, this threat is designed to quietly infiltrate a system, run hidden in the background, and give remote attackers significant control over the infected machine. Like most members of the Kryptik family, it relies on stealth and disguise to avoid detection while carrying out its harmful routines.

What Trojan.Kryptik.NPE Does

Once active on a system, Trojan.Kryptik.NPE runs silently without any visible interface, making it difficult for an average user to notice anything unusual. Behind the scenes, it can perform a range of malicious functions, including allowing hackers to gain extensive control over the compromised computer. Analysis of its behavior shows that it interacts directly with system memory and processes, using techniques such as reading and writing to other running processes and querying process information. It also makes use of encryption-related functions, which can be leveraged to hide its communications or scramble data on the system. Typical behavior for this category of malware also includes the ability to covertly delete files, install additional malicious programs, steal sensitive information such as passwords, modify system settings, and monitor a user's activity, though the exact payload can vary between infections.

How It Usually Gets Onto Computers

Trojan.Kryptik.NPE typically spreads through the same channels common to this entire category of threats. It often arrives bundled with software downloaded from unreliable or malicious websites, or hidden inside email attachments sent from untrusted or unknown senders. These attachments can be disguised as seemingly harmless files, including executables and even files made to look like images or videos. The Trojan may also take advantage of unpatched system vulnerabilities and security flaws to install itself without any direct action from the user, slipping past basic defenses and establishing itself before the victim is aware anything has happened.

Risks for the User

The presence of Trojan.Kryptik.NPE on a system poses serious risks. Because it can grant attackers remote control, victims may face stolen personal or financial information, unauthorized changes to system configuration, installation of further malware, and ongoing surveillance of their online activity. The combination of stealthy installation and deep system access makes this threat particularly concerning for both personal users and businesses handling sensitive data.

Signs of Infection

Because Trojan.Kryptik.NPE is built to operate covertly, visible symptoms may be minimal or easy to overlook. Users should watch for warning signs typical of Trojan infections, such as unexpected slowdowns, unfamiliar processes running in the background, unusual network activity, changes to system or browser settings that were not made by the user, new unrecognized files appearing in common folders, or security software behaving erratically or being disabled without explanation.

How to Stay Protected

Protecting against threats like Trojan.Kryptik.NPE starts with cautious online habits. Avoid downloading software from untrusted or unofficial websites, and never open email attachments from unknown or unexpected senders, regardless of the file type. Keep the operating system and all installed software fully updated to close known security vulnerabilities. Maintain regular backups of important files, use strong and unique passwords, and run a reputable, up-to-date security solution capable of detecting and removing Trojan infections before they can cause harm.

Analysis Report

General information

Family Name: Trojan.Kryptik.NPE
Signature status: No Signature

Known Samples

MD5: ca5b627fbbeda2142cfb6c5a7cbdee2c
SHA1: 04b88542ab650b413e15bec94f942a4addfab0a7
SHA256: B5E33FFBB64557850626162588875C0B11BA7B8BAA14E7F381C30692A31B981A
File Size: 3.76 MB, 3762688 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have exports table
  • File doesn't have security information
  • File has TLS information
  • File is 64-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)
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  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

File Traits

  • GetConsoleWindow
  • imgui
  • No Version Info
  • VirtualQueryEx
  • WriteProcessMemory
  • x64

Block Information

Total Blocks: 5,518
Potentially Malicious Blocks: 370
Whitelisted Blocks: 4,562
Unknown Blocks: 586

Visual Map

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... Data truncated
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

Files Modified

File Attributes
c:\users\user\downloads\04b88542ab650b413e15bec94f942a4addfab0a7_0003762688.old Read Attributes,Synchronize,Write Attributes,Delete

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAddAtomEx
  • ntdll.dll!NtApphelpCacheControl
  • ntdll.dll!NtClose
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtCreateThreadEx
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenSection
  • ntdll.dll!NtProtectVirtualMemory
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  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationThread
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQueryPerformanceCounter
  • ntdll.dll!NtQuerySecurityAttributesToken
  • ntdll.dll!NtQuerySecurityObject
  • ntdll.dll!NtQuerySystemInformation
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtReadFile
  • ntdll.dll!NtReadRequestData
  • ntdll.dll!NtReadVirtualMemory
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtWaitForWorkViaWorkerFactory
  • ntdll.dll!NtWriteFile
  • UNKNOWN
Encryption Used
  • BCryptOpenAlgorithmProvider
  • CryptAcquireContext