Categories: Malware

How to remove “Win32/Kryptik.GTNR”?

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

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Behavioural detection: Executable code extraction – unpacking
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Creates RWX memory
  • Dynamic (imported) function loading detected
  • Performs HTTP requests potentially not found in PCAP.
  • Enumerates running processes
  • CAPE extracted potentially suspicious content
  • The binary contains an unknown PE section name indicative of packing
  • Authenticode signature is invalid
  • Steals private information from local Internet browsers
  • Attempts to modify proxy settings
  • Harvests cookies for information gathering
  • Collects information to fingerprint the system

How to determine Win32/Kryptik.GTNR?


File Info:

name: 8BB79513EC2AF98F9DF4.mlwpath: /opt/CAPEv2/storage/binaries/9b9ffc2aef75c16bfd371f0c6c2392539cb52b85847036737fc2841c66d42e5ecrc32: 9F891CC3md5: 8bb79513ec2af98f9df49534d5b1a7c1sha1: db2c9592ce1cb07917fa420fda3e65c3a8e17f05sha256: 9b9ffc2aef75c16bfd371f0c6c2392539cb52b85847036737fc2841c66d42e5esha512: e9f26a4672587b78fb0ef29728b93c2b7c32d715d76bb2c3bcbbbdafc73042086f1a7daa28045bcbf484d48774b479442c4d15e06462f5274a845bdc71a321a1ssdeep: 12288:8EQhi9phwQuk2fa5qWG91n4/+a1n2T7GWSZHyL6BU917NHRCWOiByYIiNoHAJ:ei9HukNG9VhcE1hHRCW0HAtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T13DD4121432C554B2C9A3267B8577CBB54EAA7C4A1F225DDF5BEA267A0F346D0923030Fsha3_384: 90fb92bccbc827187ec732d7830461416a0cb6d1f554a68be4591cd43c10926009cf57fe700d2e775e10e2f0caa699d2ep_bytes: e84c1f0000e989feffff8bff558bec81timestamp: 2018-06-04 11:47:54

Version Info:

Translation: 0x0840 0x04c4

Win32/Kryptik.GTNR also known as:

Bkav W32.AIDetect.malware1
Lionic Trojan.Win32.Chapak.4!c
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.Brsecmon.1
FireEye Generic.mg.8bb79513ec2af98f
CAT-QuickHeal Ransom.Stop.P5
ALYac Trojan.Brsecmon.1
Cylance Unsafe
Sangfor Trojan.Win32.Generic.ky
K7AntiVirus Trojan ( 0054f1e61 )
Alibaba Trojan:Win32/Kryptik.be30ac70
K7GW Trojan ( 0054f1e61 )
Cybereason malicious.3ec2af
Symantec Packed.Generic.525
ESET-NOD32 a variant of Win32/Kryptik.GTNR
APEX Malicious
Paloalto generic.ml
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.Brsecmon.1
NANO-Antivirus Trojan.Win32.Chapak.fvibxc
SUPERAntiSpyware Trojan.Agent/Gen-Kryptik
Avast Win32:CrypterX-gen [Trj]
Rising Backdoor.Predator!8.6DF3 (CLOUD)
Ad-Aware Trojan.Brsecmon.1
Emsisoft Trojan.Brsecmon.1 (B)
DrWeb Trojan.PWS.Siggen2.12561
Zillya Trojan.Kryptik.Win32.1706225
TrendMicro Trojan.Win32.SODINOK.SM.hp
McAfee-GW-Edition BehavesLike.Win32.Lockbit.jh
Sophos Mal/Generic-S + Mal/GandCrab-G
Ikarus Trojan.Win32.Crypt
GData Trojan.Brsecmon.1
Jiangmin Trojan.Chapak.fzo
Avira TR/AD.VidarStealer.aetx
Antiy-AVL Trojan/Generic.ASMalwS.2C2ED69
ViRobot Trojan.Win32.Z.Kryptik.634880.CHT
ZoneAlarm HEUR:Trojan.Win32.Generic
Microsoft Backdoor:Win32/Predator.J!rfn
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.BlueCrab.R273592
McAfee GenericRXHS-WN!8BB79513EC2A
VBA32 BScope.Trojan.Pushdo
Malwarebytes Trojan.MalPack.GS.Generic
TrendMicro-HouseCall Trojan.Win32.SODINOK.SM.hp
Tencent Win32.Trojan.Chapak.Edxv
Yandex Trojan.Chapak!oHLg/ee17m8
SentinelOne Static AI – Malicious PE
MaxSecure Ransomeware.CRAB.gen
Fortinet W32/GenKryptik.GTNE!tr
BitDefenderTheta Gen:NN.ZexaF.34212.MyW@aWExyuo
AVG Win32:CrypterX-gen [Trj]
Panda Trj/GdSda.A
CrowdStrike win/malicious_confidence_100% (W)

How to remove Win32/Kryptik.GTNR?

  • 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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