Threat Database Trojans Trojan.Kryptik.NFYB

Trojan.Kryptik.NFYB

By CagedTech in Trojans

Threat Scorecard

Popularity Rank: 20,777
Threat Level: 80 % (High)
Infected Computers: 2
First Seen: July 10, 2026
Last Seen: August 1, 2026
OS(es) Affected: Windows

Analysis Report

General information

Family Name: Trojan.Kryptik.NFYB
Signature status: Hash Mismatch

Known Samples

MD5: 57007950791e9e4a09fb09cc0cf6ac15
SHA1: b1f47e7bea3efea9cdb1217ba1ebd2b9e796cb36
SHA256: 1590F5BC877168396A099A8726B2922C2F5FC4116C047719FCA6A315CA33BA2A
File Size: 609.66 KB, 609656 bytes
MD5: d398c2cd0a4be0d079fb5fed41cacb88
SHA1: 187029323f10820a8ab82015ad38f60c0d7a3d6c
SHA256: AC712A69261CB774982A217A3A45E68FE7E9FAE39B3D5C2EE47E9283E57F0308
File Size: 689.45 KB, 689448 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have debug information
  • File doesn't have exports table
  • 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 Icons

Windows PE Version Information

Name Value
Company Name
  • Microsoft Corporation
  • PERPLEXITY AI, INC.
File Description
  • .NET Host
  • Comet Updater (x64)
File Version
  • 147.0.7727.1860
  • 10,0,826,23019 @Commit: 94ea82652cdd4e0f8046b5bd5becbd11461482ca
Legal Copyright © Microsoft Corporation. All rights reserved.
Product Name
  • .NET
  • Comet Updater (x64)
Product Version
  • 147.0.7727.1860
  • 10.0.8 @Commit: 94ea82652cdd4e0f8046b5bd5becbd11461482ca

Digital Signatures

Signer Root Status
PERPLEXITY AI, INC. GlobalSign Code Signing Root R45 Hash Mismatch
.NET Microsoft Code Signing PCA 2024 Hash Mismatch

File Traits

  • fptable
  • HighEntropy
  • WriteProcessMemory
  • x64

Block Information

Total Blocks: 514
Potentially Malicious Blocks: 185
Whitelisted Blocks: 311
Unknown Blocks: 18

Visual Map

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

Similar Families

  • Kryptik.NFYB
  • Trojan.Kryptik.Gen.GOS

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAddAtomEx
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtClose
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtQueryInformationFile
  • ntdll.dll!NtQueryInformationProcess
Show More
  • ntdll.dll!NtQuerySystemInformation
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtWaitLowEventPair
  • ntdll.dll!NtWriteFile
  • UNKNOWN
User Data Access
  • GetComputerName
  • GetUserName