Ransom Trojan

Trojan-Ransom.Win32.Encoder.nku (file analysis)

Malware Removal

The Trojan-Ransom.Win32.Encoder.nku 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 Trojan-Ransom.Win32.Encoder.nku virus can do?

  • Possible date expiration check, exits too soon after checking local time
  • Reads data out of its own binary image
  • Unconventionial language used in binary resources: Czech
  • Spoofs its process name and/or associated pathname to appear as a legitimate process
  • Network activity detected but not expressed in API logs
  • Attempts to identify installed AV products by installation directory
  • Attempts to identify installed AV products by registry key

How to determine Trojan-Ransom.Win32.Encoder.nku?


File Info:

crc32: 4DE786A5
md5: 73c88ec481356005371023da210c7edb
name: 73C88EC481356005371023DA210C7EDB.mlw
sha1: e14f2cc78a9622b0468e9e0741395b900a15d78e
sha256: 84660901f97ecaad358082d13b297f7f418b70abbd66799682001282b81fe59e
sha512: baa433b4cc5606c712b8b3127c731d538d660bf18455c57952e3189cdfb63a5a6224fc719f2dfd4a10d0ca92d8e85c2fc1359150e94f755e7c4f3aa860555718
ssdeep: 24576:AR3gsHwFepZha4HkQdmLKaJuggggMK05TNgf+JBW0dQ:jsPkAmLtJuggggMrTWf+JBW0
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (c) 2021 AVAST Software
InternalName: SfxInst
FileVersion: 21.7.6459.0
CompanyName: AVAST Software
ProductName: Avast Antivirus
ProductVersion: 21.7.6459.0
FileDescription: Avast Antivirus
OriginalFilename: SfxInst.exe
ProductId: avast-av
Translation: 0x0409 0x04b0

Trojan-Ransom.Win32.Encoder.nku also known as:

LionicTrojan.Win32.Encoder.j!c
ALYacTrojan.GenericKD.46750063
BitDefenderTrojan.GenericKD.46750063
CynetMalicious (score: 100)
KasperskyTrojan-Ransom.Win32.Encoder.nku
MicroWorld-eScanTrojan.GenericKD.46750063
Ad-AwareTrojan.GenericKD.46750063
BitDefenderThetaGen:NN.ZexaF.34058.fz0@aG6pWfjO
FireEyeTrojan.GenericKD.46750063
EmsisoftTrojan.GenericKD.46750063 (B)
JiangminTrojan.Generic.gzzjg
MicrosoftTrojan:Win32/Zpevdo.B
ZoneAlarmTrojan-Ransom.Win32.Encoder.nku
GDataTrojan.GenericKD.46750063
AhnLab-V3Trojan/Win.Generic.C4584308
MAXmalware (ai score=81)
PandaTrj/CI.A
FortinetW32/Encoder.NKU!tr
Qihoo-360Win32/Ransom.Encoder.HgIASZ0A

How to remove Trojan-Ransom.Win32.Encoder.nku?

Trojan-Ransom.Win32.Encoder.nku removal tool
  • 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.

About the author

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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