Threat Database Trojans Trojan.MSIL.Krypt.KVA

Trojan.MSIL.Krypt.KVA

By CagedTech in Trojans

Threat Scorecard

Popularity Rank: 15,531
Threat Level: 80 % (High)
Infected Computers: 31
First Seen: November 8, 2021
Last Seen: January 13, 2026
OS(es) Affected: Windows

Analysis Report

General information

Family Name: Trojan.MSIL.Krypt.KVA
Signature status: No Signature

Known Samples

MD5: f4362abcf648117895b7ea6784515451
SHA1: 9320e57dd084a6058c983ec46259b8eba6f4fa62
SHA256: DED5F12E5A4531574CFDFEB2CD0120C1773CC7FF031E62BEBC26E67444519140
File Size: 225.79 KB, 225792 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 .NET application
  • File is 32-bit executable
  • File is either console or GUI application
  • File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
  • 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 Icons

Windows PE Version Information

Name Value
Assembly Version 1.0.0.0
Comments Winform app for quick testing implementations in the TWAIN lib.
Company Name Yin-Chun Wang
File Description Sample.Winform
File Version 1.0.0.0
Internal Name Sample.Winform.exe
Legal Copyright Copyright © Yin-Chun Wang 2014
Original Filename Sample.Winform.exe
Product Name Sample.Winform
Product Version 1.0.0.0

File Traits

  • .NET
  • HighEntropy
  • x86

Block Information

Total Blocks: 490
Potentially Malicious Blocks: 2
Whitelisted Blocks: 448
Unknown Blocks: 40

Visual Map

? ? 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 ? 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 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 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 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 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

  • MSIL.Agent.DDFB
  • MSIL.Bladabindi.AS
  • MSIL.Krypt.GDFB
  • MSIL.Krypt.ZADDB
  • MSIL.Seraph.C
Show More
  • MSILZilla.BL

Files Modified

File Attributes
\device\namedpipe\gmdasllogger Generic Write,Read Attributes
c:\windows\appcompat\programs\amcache.hve Read Data,Read Control,Write Data
c:\windows\appcompat\programs\amcache.hve Write Attributes
c:\windows\assembly Synchronize,Write Attributes

Registry Modifications

Key::Value Data API Name
HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 RegNtPreCreateKey
HKLM\system\software\microsoft\tip\aggregateresults::data 隞̃缁耀꧌Şƥ RegNtPreCreateKey

Windows API Usage

Category API
User Data Access
  • GetUserObjectInformation
Anti Debug
  • CheckRemoteDebuggerPresent
  • IsDebuggerPresent
Encryption Used
  • BCryptOpenAlgorithmProvider
  • CryptAcquireContext
Process Manipulation Evasion
  • NtUnmapViewOfSection
  • ReadProcessMemory
Process Shell Execute
  • CreateProcess

Shell Command Execution

C:\Windows\Microsoft.NET\Framework\v2.0.50727\\dw20.exe dw20.exe -x -s 908

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