Threat Database Trojans Trojan.MSIL.Kryptik.WD

Trojan.MSIL.Kryptik.WD

By CagedTech in Trojans

Threat Scorecard

Popularity Rank: 5,574
Threat Level: 80 % (High)
Infected Computers: 54,790
First Seen: July 1, 2021
Last Seen: May 28, 2026
OS(es) Affected: Windows

Analysis Report

General information

Family Name: Trojan.MSIL.Kryptik.WD
Signature status: Modified signature

Known Samples

MD5: 1bf9df08118439a246015d145fcab015
SHA1: 9c935965d865d82405e8d133f4bb696a90538ed1
SHA256: 4E184D1EAC3A71CCD0044D0B52420F44D479B48D8EA23A4B582AC69AF911509A
File Size: 755.52 KB, 755520 bytes
MD5: 8af0dcd5f4eec6f07e876a8e81187f95
SHA1: 27064791d4b581095fad9ca14b1056b5f1df1169
SHA256: 47052683676820DCC681EA6BED466EEBDF9EA094D7BE6A95DC9CDCF916B80363
File Size: 755.45 KB, 755448 bytes
MD5: 0b6603afd6a2bdd51d86ec4aa8b1afa4
SHA1: bb5d3c01298d5075a42926e19e7aea4400bc4d88
SHA256: E831493CBDD1430E310929DD9098B89729C73E01D73FBA10C5D3A9A9F8A1EC21
File Size: 755.46 KB, 755456 bytes
MD5: f398d4c72d856b5235761af50ec65768
SHA1: 59318e629332fcc11c610934ac92cc589c41c733
SHA256: FB53DB09923607CB6DEEEF5279DBBD2F47C3DE57B16DEF05B3203AF747DE2533
File Size: 750.33 KB, 750328 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have debug information
  • File doesn't have exports table
  • 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
  • 13.905.8.57580
  • 13.905.6.54284
  • 13.905.3.41964
Comments Web Companion protects you against malicious websites and dangerous links found online
Company Name Lavasoft
File Description Web Companion
File Version
  • 13.905.8.57580
  • 13.905.6.54284
  • 13.905.3.41964
Internal Name WebCompanion.exe
Legal Copyright © Lavasoft Limited. All Rights Reserved.
Legal Trademarks (R) Lavasoft
Original Filename WebCompanion.exe
Product Name Web Companion
Product Version
  • 13.905.8.57580
  • 13.905.6.54284
  • 13.905.3.41964

File Traits

  • .NET
  • HighEntropy
  • msil.krypt
  • x86

Block Information

Total Blocks: 969
Potentially Malicious Blocks: 499
Whitelisted Blocks: 470
Unknown Blocks: 0

Visual Map

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

Similar Families

  • MSIL.Bundler.CBA

Files Modified

File Attributes
c:\programdata\lavasoft\web companion\options\statistics.txt Generic Write,Read Attributes
c:\users\user\appdata\local\temp\wc\app.config Generic Write,Read Attributes
c:\users\user\appdata\local\temp\wcinstaller.log Generic Write,Read Attributes

Registry Modifications

Key::Value Data API Name
HKLM\software\wow6432node\lavasoft\web companion::machineid 268ddfeb-393b-01ab-2937-4e66db5d0964 RegNtPreCreateKey

Windows API Usage

Category API
User Data Access
  • GetUserDefaultLocaleName
  • GetUserObjectInformation
Encryption Used
  • BCryptOpenAlgorithmProvider
Anti Debug
  • IsDebuggerPresent
  • NtQuerySystemInformation
  • OutputDebugString
Other Suspicious
  • AdjustTokenPrivileges

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