Categories: Malware

Should I remove “Win32/Kryptik.GRKC”?

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

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Dynamic (imported) function loading detected
  • Unconventionial language used in binary resources: Zulu
  • The binary contains an unknown PE section name indicative of packing
  • The binary likely contains encrypted or compressed data.
  • The executable is compressed using UPX
  • Authenticode signature is invalid
  • Network activity detected but not expressed in API logs

Related domains:

wpad.local-net

How to determine Win32/Kryptik.GRKC?


File Info:

name: 1074313C71AA6A495ADA.mlwpath: /opt/CAPEv2/storage/binaries/95d52fd04e7a1544061eca8c78c34eca6cefa630f8d8f90757123a44f9675b57crc32: ED64FA80md5: 1074313c71aa6a495ada5ae39029eb8asha1: 5c7935e315433590f6338e183735bc4fc8f2cde6sha256: 95d52fd04e7a1544061eca8c78c34eca6cefa630f8d8f90757123a44f9675b57sha512: 8c842f87dec503fd1ea6d86ef8a7e8fdf90f52ab14edc6010a9ce7ebcd7026798a0ef7d81cd0c63dfc1f6ed5e80bef99b3bcb50c58fc913ac2ecdab14f91848essdeep: 6144:PWf7EgRnk8Wj/v9Z3mRNqNdv/8apMkFvmr:PWf7PnOj/vr3mRNg9BpMaYtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T195546C46F2CA2D50C37415FD700FAFBAD051D922AC25E281D7BF1B43D5B8F1027A66AAsha3_384: a49996192516e326bb345b3efe1a277ffceaa8921d58232900afe6db258359af895fd1e79e2b6f98183dcccc9a32b8c4ep_bytes: 60be003076058dbe00e0c9fa5783cdfftimestamp: 2018-01-01 18:02:53

Version Info:

0: [No Data]

Win32/Kryptik.GRKC also known as:

Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.GenericKD.31830863
FireEye Generic.mg.1074313c71aa6a49
ALYac Trojan.GenericKD.31830863
Cylance Unsafe
Zillya Trojan.Chapak.Win32.73501
K7AntiVirus Trojan ( 0054ac421 )
Alibaba Trojan:Win32/Chapak.f8fbbdba
K7GW Trojan ( 0054ac421 )
Cybereason malicious.c71aa6
Symantec Trojan Horse
ESET-NOD32 a variant of Win32/Kryptik.GRKC
APEX Malicious
Paloalto generic.ml
Kaspersky Trojan.Win32.Chapak.clvl
BitDefender Trojan.GenericKD.31830863
NANO-Antivirus Trojan.Win32.Chapak.forfrq
Avast Win32:Malware-gen
Tencent Win32.Trojan.Chapak.Dvps
Ad-Aware Trojan.GenericKD.31830863
Sophos Mal/Generic-S
Comodo Malware@#3n6v980e4h37g
DrWeb Trojan.DownLoader27.42575
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom.Win32.GANDCRAB.TIOIBOCC
McAfee-GW-Edition BehavesLike.Win32.Generic.dc
Emsisoft Trojan.GenericKD.31830863 (B)
Ikarus Trojan.Win32.Crypt
GData Trojan.GenericKD.31830863
Jiangmin Trojan.Generic.dddyj
Webroot W32.Trojan.Gen
Avira HEUR/AGEN.1107509
Antiy-AVL Trojan/Generic.ASMalwS.2B06AA0
Arcabit Trojan.Generic.D1E5B34F
ViRobot Trojan.Win32.GandCrab.Gen.B
Microsoft Trojan:Win32/Skeeyah.B!rfn
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Fuerboos.R260973
Acronis suspicious
McAfee Artemis!1074313C71AA
MAX malware (ai score=100)
VBA32 BScope.Trojan.Azden
TrendMicro-HouseCall Ransom.Win32.GANDCRAB.TIOIBOCC
Rising Malware.Obscure/Heur!1.9E03 (CLASSIC)
Yandex Trojan.GenAsa!tDPjrZLAu/U
SentinelOne Static AI – Malicious PE
eGambit Unsafe.AI_Score_86%
Fortinet W32/CoinMiner.HGHW!tr
BitDefenderTheta Gen:NN.ZexaF.34294.rmGfauJpEXjK
AVG Win32:Malware-gen
Panda Trj/Genetic.gen
CrowdStrike win/malicious_confidence_100% (D)
MaxSecure Trojan.Malware.300983.susgen

How to remove Win32/Kryptik.GRKC?

  • 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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