Categories: Malware

Win32/Kryptik.FBRF removal tips

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

  • Executable code extraction
  • Attempts to connect to a dead IP:Port (4 unique times)
  • Enumerates user accounts on the system
  • Creates RWX memory
  • A process attempted to delay the analysis task.
  • At least one IP Address, Domain, or File Name was found in a crypto call
  • Reads data out of its own binary image
  • Drops a binary and executes it
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic
  • Creates an excessive number of UDP connection attempts to external IP addresses
  • Performs some HTTP requests
  • Unconventionial language used in binary resources: Chinese (Simplified)
  • The binary likely contains encrypted or compressed data.
  • Uses Windows utilities for basic functionality
  • Exhibits behavior characteristic of Cerber ransomware
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config
  • Mimics the file times of a Windows system file
  • Installs itself for autorun at Windows startup
  • Creates a hidden or system file
  • Attempts to identify installed AV products by installation directory
  • Creates a copy of itself
  • Uses suspicious command line tools or Windows utilities

Related domains:

ip-api.com

How to determine Win32/Kryptik.FBRF?


File Info:

crc32: 2362621Fmd5: b538fcba956412da61ec52e030c70a86name: B538FCBA956412DA61EC52E030C70A86.mlwsha1: 0d2f9e572c43b6625d5619998fa96205a40e85edsha256: 7cace7faf7daa7d0bcea50f7ed16ba46125edd80e44b29610f9e7b8a0e7fc9e4sha512: 42a3c4e2b53015293fa4de7ad84633a9072c96ae6636e5cd2b4573e65fcd9c782f7614877347e52985cd723d11ed987072d55034834d11ef3f2b58619c3db24essdeep: 6144:T/ZvMQDL4OTrnGtnc6i3UKRKR888888888888W888888888887:T/OQ34OvHM888888888888W88888888Etype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

InternalName: 3RVX.exeFileDescription: 3RVXFileVersion: 2.5CompanyName: matt.malensek.netTranslation: 0x0000 0x04b0

Win32/Kryptik.FBRF also known as:

Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.Ransom.Cerber.1
FireEye Generic.mg.b538fcba956412da
CAT-QuickHeal Ransom.Cerber.YY2
ALYac Trojan.Ransom.Cerber.1
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 005224381 )
BitDefender Trojan.Ransom.Cerber.1
K7GW Trojan ( 005224381 )
Cybereason malicious.a95641
BitDefenderTheta Gen:NN.ZexaF.34590.rq1@auMMQ9dj
Cyren W32/Locky.H2.gen!Eldorado
Symantec Packed.Generic.459
Baidu Win32.Trojan.Kryptik.anp
APEX Malicious
Paloalto generic.ml
Kaspersky HEUR:Trojan.Win32.Generic
Alibaba Ransom:Win32/Cerber.1bf387bb
NANO-Antivirus Trojan.Win32.Encoder.evqbnq
SUPERAntiSpyware Ransom.Cerber/Variant
Rising Trojan.Kryptik!1.AF0E (CLOUD)
Ad-Aware Trojan.Ransom.Cerber.1
Sophos Mal/Generic-R + Mal/Ransom-EJ
Comodo TrojWare.Win32.Kryptik.ERJ@6l0vie
F-Secure Heuristic.HEUR/AGEN.1117922
DrWeb Trojan.Encoder.5189
Zillya Trojan.Kryptik.Win32.1312841
TrendMicro Ransom_CERBER.SMEJ1
McAfee-GW-Edition BehavesLike.Win32.Emotet.dh
Emsisoft Trojan.Ransom.Cerber.1 (B)
SentinelOne Static AI – Malicious PE
GData Trojan.Ransom.Cerber.1
Avira HEUR/AGEN.1117922
Antiy-AVL RiskWare[Downloader]/Win32.LMN
Arcabit Trojan.Ransom.Cerber.1
AegisLab Trojan.Win32.Generic.4!c
ZoneAlarm HEUR:Trojan.Win32.Generic
Microsoft Ransom:Win32/Cerber.A
Cynet Malicious (score: 100)
AhnLab-V3 Win-Trojan/Cerber.Gen
Acronis suspicious
McAfee Ransomware-FXM!B538FCBA9564
MAX malware (ai score=100)
VBA32 BScope.TrojanPSW.Papras
Malwarebytes Malware.AI.2190580496
Panda Generic Suspicious
ESET-NOD32 a variant of Win32/Kryptik.FBRF
TrendMicro-HouseCall Ransom_CERBER.SMEJ1
Tencent Malware.Win32.Gencirc.11494ea9
Yandex Trojan.Kryptik!6MiYtuTFqo8
Ikarus Trojan-Ransom.FileCrypter
eGambit Unsafe.AI_Score_99%
Fortinet W32/GenKryptik.DFEW!tr
AVG Win32:Malware-gen
Avast Win32:Malware-gen
CrowdStrike win/malicious_confidence_100% (D)
Qihoo-360 Win32/Ransom.Cerber.HgIASOYA

How to remove Win32/Kryptik.FBRF?

  • 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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