Categories: Malware

Heur.MSIL.Krypt.41 (B) (file analysis)

The Heur.MSIL.Krypt.41 (B) is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

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What Heur.MSIL.Krypt.41 (B) virus can do?

  • Dynamic (imported) function loading detected
  • Authenticode signature is invalid
  • Anomalous .NET characteristics

How to determine Heur.MSIL.Krypt.41 (B)?


File Info:

name: 3DB99AF6C9FF39979042.mlwpath: /opt/CAPEv2/storage/binaries/e4c5e54155a6ff8d96512f8c14c641ba9991a120a0b399ef01edfbacf82298e7crc32: FDE106A5md5: 3db99af6c9ff399790424ed4d0abf190sha1: f0539a92967215281b8be4568bd8f7657165bdcbsha256: e4c5e54155a6ff8d96512f8c14c641ba9991a120a0b399ef01edfbacf82298e7sha512: 9e77fe6553225a2debb3926a56fd28abe4d94520cb715e24a2a10a07e65a0507b4b6a3ba2b105daa30c240af1af27cbc7cd05e0be808ff489458cabeebe1819bssdeep: 1536:5uuwEMyWlln2TNFFTOE51tknzhh1+2/TeW9xFwA1IOoNLWS8:5SsWll2TNFFTOQ1KdhE2r59xi3OcYtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1859359243AEB501AF1B3AF765BE47596DA6FB7733B07646D1091038A0B23900EED153Esha3_384: 5aa5367f2ac5746c59a1cafebb8e9f9b6b3298d66ca1cffcd4c63a11a2582d8bba5dfb95d0c4e88adbc06db4c16af44eep_bytes: ff250020400000000000000000000000timestamp: 2018-02-04 11:52:04

Version Info:

Translation: 0x0000 0x04b0FileDescription: FileVersion: 0.0.0.0InternalName: Server.exeLegalCopyright: OriginalFilename: Server.exeProductVersion: 0.0.0.0Assembly Version: 0.0.0.0

Heur.MSIL.Krypt.41 (B) also known as:

Elastic malicious (high confidence)
MicroWorld-eScan Gen:Heur.MSIL.Krypt.41
ALYac Gen:Heur.MSIL.Krypt.41
Cylance Unsafe
K7AntiVirus Trojan ( 004d99ff1 )
K7GW Trojan ( 004d99ff1 )
CrowdStrike win/malicious_confidence_100% (D)
Cyren W32/A-770b6427!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of MSIL/Kryptik.EPI
APEX Malicious
Kaspersky HEUR:Trojan.MSIL.Generic
BitDefender Gen:Heur.MSIL.Krypt.41
Avast Win32:Malware-gen
Ad-Aware Gen:Heur.MSIL.Krypt.41
Sophos ML/PE-A + Mal/Kryptik-BA
DrWeb Trojan.DownLoader25.49262
FireEye Generic.mg.3db99af6c9ff3997
Emsisoft Gen:Heur.MSIL.Krypt.41 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.MSIL.Crypt.o
Avira TR/Dropper.Gen
MAX malware (ai score=87)
Antiy-AVL Trojan/Generic.ASMalwS.24546C6
Microsoft Trojan:Win32/Sabsik.FL.B!ml
GData Gen:Heur.MSIL.Krypt.41
Cynet Malicious (score: 100)
VBA32 TScope.Trojan.MSIL
Malwarebytes Trojan.Agent
Yandex Trojan.Agent!m4Pnoy0u2PA
MaxSecure Trojan.Malware.300983.susgen
Fortinet MSIL/Kryptik.FAF!tr
BitDefenderTheta Gen:NN.ZemsilF.34294.fm1@aSgSLtp
AVG Win32:Malware-gen
Cybereason malicious.6c9ff3
Panda Trj/GdSda.A

How to remove Heur.MSIL.Krypt.41 (B)?

  • Download and install GridinSoft Anti-Malware.
  • Open GridinSoft Anti-Malware and perform a “Standard scan“.
  • Move to quarantine” all items.
  • Open “Tools” tab – Press “Reset Browser Settings“.
  • Select proper browser and options – Click “Reset”.
  • Restart your computer.
Paul Valéry

I'm a cyber security analyst and data science expert with 5+ years of experience with security software contractors.

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