Categories: Malware

Win32/Kryptik.FWNZ removal instruction

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

  • Executable code extraction
  • Injection (inter-process)
  • Injection (Process Hollowing)
  • Attempts to connect to a dead IP:Port (3 unique times)
  • Creates RWX memory
  • Possible date expiration check, exits too soon after checking local time
  • 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.
  • Uses Windows utilities for basic functionality
  • Enumerates services, possibly for anti-virtualization
  • Executed a process and injected code into it, probably while unpacking
  • Deletes its original binary from disk
  • Installs itself for autorun at Windows startup
  • Attempts to interact with an Alternate Data Stream (ADS)
  • Anomalous binary characteristics

Related domains:

microsoft-com.mail.protection.outlook.com

How to determine Win32/Kryptik.FWNZ?


File Info:

crc32: B3FAB0AEmd5: 91ca39ab30e92764be4d1a9058a33fe1name: upload_filesha1: 55f7df30c6fabc1402e93722373b6434f4f597dasha256: 6338b7cbf215caa58ffe9f8fad281080baeb36c2bdce30465430246bd6ed232fsha512: e0f939e90592bca77598aa495fcc2670433f21bf50d2cdeb13b3adc8b8668faa32f53205a7109b75967cd2b7c339bc6932f41206d5c1ddd1dfed7ec327f4ceb4ssdeep: 196608:qE3E3E3E3E3E3E3E3E3E3E3E3E3E3E3E3E3E3E3E3E3E3E3E3E3E3E3E3E3E3E3:qE3E3E3E3E3E3E3E3E3E3E3E3E3E3E3type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.FWNZ also known as:

Bkav W32.AIDetectVM.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.GenericKDZ.40409
FireEye Generic.mg.91ca39ab30e92764
CAT-QuickHeal Ransom.Exxroute.A4
McAfee Ransomware-GFC!91CA39AB30E9
Cylance Unsafe
AegisLab Trojan.Win32.Tofsee.m!c
Sangfor Malware
K7AntiVirus Trojan ( 0051918c1 )
BitDefender Trojan.GenericKDZ.40409
K7GW Trojan ( 0051918c1 )
CrowdStrike win/malicious_confidence_100% (W)
Cyren W32/Ransom.GS.gen!Eldorado
Symantec Packed.Generic.493
APEX Malicious
Paloalto generic.ml
ClamAV Win.Trojan.Poison-7349717-0
Kaspersky HEUR:Backdoor.Win32.Tofsee.pef
Alibaba Backdoor:Win32/Tofsee.bd5f2675
NANO-Antivirus Trojan.Win32.Poison.esqkmb
ViRobot Trojan.Win32.Z.Poison.11380224
Rising Ransom.Locky!8.1CD4 (TFE:5:i267r9wgkgR)
Ad-Aware Trojan.GenericKDZ.40409
Comodo TrojWare.Win32.Ransom.Locky.AF@7976es
DrWeb Trojan.Siggen10.39460
VIPRE Trojan.Win32.Generic!BT
Invincea ML/PE-A + Mal/Elenoocka-E
McAfee-GW-Edition BehavesLike.Win32.Generic.vc
Sophos Mal/Elenoocka-E
Ikarus Trojan.Win32.Tofsee
Jiangmin Backdoor.Poison.ara
Webroot W32.Trojan.Gen
Avira HEUR/AGEN.1120893
MAX malware (ai score=80)
Microsoft Backdoor:Win32/Tofsee.T
Arcabit Trojan.Generic.D9DD9
ZoneAlarm HEUR:Backdoor.Win32.Tofsee.pef
GData Win32.Trojan.Kryptik.IT
AhnLab-V3 Win-Trojan/Lukitus3.Exp
Acronis suspicious
BitDefenderTheta Gen:NN.ZexaF.34590.@tW@ai3NuEli
ALYac Trojan.GenericKDZ.40409
VBA32 Backdoor.Poison
Panda Trj/CI.A
ESET-NOD32 a variant of Win32/Kryptik.FWNZ
Tencent Malware.Win32.Gencirc.10bac95f
Yandex Trojan.GenAsa!XerlMIHYAYg
SentinelOne DFI – Malicious PE
eGambit Unsafe.AI_Score_99%
Fortinet W32/Kryptik.FYKK!tr
AVG Win32:Malware-gen
Cybereason malicious.b30e92
Avast Win32:Malware-gen
Qihoo-360 Win32/Backdoor.417

How to remove Win32/Kryptik.FWNZ?

  • 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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