Categories: Malware

Win32/Kryptik.ETJR malicious file

The Win32/Kryptik.ETJR 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 Win32/Kryptik.ETJR virus can do?

  • Executable code extraction
  • Compression (or decompression)
  • Creates RWX memory
  • A process attempted to delay the analysis task.
  • Reads data out of its own binary image
  • A process created a hidden window
  • Drops a binary and executes it
  • The binary likely contains encrypted or compressed data.
  • The executable is compressed using UPX
  • Uses Windows utilities for basic functionality
  • Attempts to remove evidence of file being downloaded from the Internet
  • Attempts to delete volume shadow copies
  • Deletes its original binary from disk
  • Attempts to repeatedly call a single API many times in order to delay analysis time
  • Behavior consistent with a dropper attempting to download the next stage.
  • Installs itself for autorun at Windows startup
  • Writes a potential ransom message to disk
  • Creates a hidden or system file
  • Attempts to modify proxy settings
  • Creates a copy of itself
  • Anomalous binary characteristics
  • Uses suspicious command line tools or Windows utilities

How to determine Win32/Kryptik.ETJR?


File Info:

crc32: 03283C85md5: 00bcf1a7171692306efa1c9b2f48b6abname: 00BCF1A7171692306EFA1C9B2F48B6AB.mlwsha1: d7034f937e6054e5e1888c7ef5ca985e2539dcfdsha256: f362ac601f08e76cb9f2a1b7967a9440d589bbf0da0fbc36dcf8fe0c1136b6e9sha512: 64ffd20fb7f7fa8398f0c55c8091520a49e5b9a410a7e553f7732ce82d6d07bc44cef9fdd63bb966f5eca48914ac85d73ab0e557ddb2b8b5a5abe2b0cd331384ssdeep: 3072:HKAR6OYhdYC9b6B3aag8b/HdxApldwmDwBWs/GKvYgUJqaaiCOmab8+9dytIXnP:jRMhVu+wApYrvvYVoabgDUyq3PQDxTtype: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

LegalCopyright: Copyright (C) Microsoft Corp. 1981-1997InternalName: wmiscmgr.dllFileVersion: 5.00.1636.1CompanyName: Microsoft CorporationProductName: Microsoft(R) Windows NT(R) Operating SystemProductVersion: 5.00.1636.1FileDescription: WMI Filter ManagerOriginalFilename: wmiscmgr.dllTranslation: 0x0409 0x04b0

Win32/Kryptik.ETJR also known as:

Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 005566d71 )
Elastic malicious (high confidence)
DrWeb Trojan.MulDrop9.35869
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.Tescrypt.WR6
ALYac Trojan.Ransomware.GenericKDS.41723573
Cylance Unsafe
Zillya Trojan.BitmanGen.Win32.8
Sangfor Trojan.Win32.ULPM.Gen
CrowdStrike win/malicious_confidence_80% (D)
Alibaba Trojan:Win32/Starter.ali2000005
K7GW Trojan ( 005566d71 )
Cybereason malicious.717169
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.ETJR
APEX Malicious
Avast Win32:Trojan-gen
ClamAV Win.Ransomware.Teslacrypt-7083376-0
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.Ransomware.GenericKDS.41723573
NANO-Antivirus Trojan.Win32.TeslaCrypt.hhqhgm
MicroWorld-eScan Trojan.Ransomware.GenericKDS.41723573
Tencent Win32.Trojan.Generic.Eeu
Ad-Aware Trojan.Ransomware.GenericKDS.41723573
Comodo Malware@#1izvjj9vt1akp
BitDefenderTheta Gen:NN.ZexaF.34670.mmKfaGuKlibi
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_HPCRYPTESLA.SMA2
McAfee-GW-Edition BehavesLike.Win32.Generic.dc
FireEye Generic.mg.00bcf1a717169230
Emsisoft Trojan.Ransomware.GenericKDS.41723573 (B)
SentinelOne Static AI – Suspicious PE
Jiangmin Trojan.Yakes.jiz
Avira TR/Crypt.ULPM.Gen
eGambit Unsafe.AI_Score_86%
Kingsoft Win32.Troj.Generic_a.a.(kcloud)
Microsoft Ransom:Win32/Tescrypt.T
Arcabit Trojan.Ransomware.GenericS.D27CA6B5
GData Win32.Trojan-Ransom.TeslaCrypt.AD
AhnLab-V3 Malware/Win32.RL_Generic.R287527
McAfee Artemis!00BCF1A71716
MAX malware (ai score=80)
VBA32 BScope.Trojan.Encoder
Malwarebytes Malware.Heuristic.1003
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom_HPCRYPTESLA.SMA2
Rising Ransom.Bitman!8.6A2 (CLOUD)
Yandex Trojan.Bitman!ex/TqyGLGTI
Ikarus Trojan-Ransom.Locky
Fortinet W32/Kryptik.ESRN!tr
AVG Win32:Trojan-gen
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Generic.HwsBANgC

How to remove Win32/Kryptik.ETJR?

  • 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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