Backdoor.Win32.Tofsee.cbuk

Seeing the Backdoor.Win32.Tofsee.cbuk malware detection usually means that your PC is in big danger. This computer virus can correctly be named as ransomware – sort of malware which encrypts your files and asks you to pay for their decryption. Stopping it requires some specific steps that must be done as soon as possible.

Backdoor.Win32.Tofsee.cbuk detection is a virus detection you can spectate in your system. It often shows up after the provoking actions on your PC – opening the untrustworthy email messages, clicking the advertisement in the Web or mounting the program from unreliable sources. From the moment it shows up, you have a short time to take action before it starts its destructive action. And be sure – it is better not to await these malicious actions.

What is Backdoor.Win32.Tofsee.cbuk virus?

Backdoor.Win32.Tofsee.cbuk Summary

In total, Backdoor.Win32.Tofsee.cbuk virus actions in the infected PC are next:

  • SetUnhandledExceptionFilter detected (possible anti-debug);
  • Behavioural detection: Executable code extraction – unpacking;
  • Executed a command line with /C or /R argument to terminate command shell on completion which can be used to hide execution;
  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Creates RWX memory;
  • Dynamic (imported) function loading detected;
  • Reads data out of its own binary image;
  • A process created a hidden window;
  • CAPE extracted potentially suspicious content;
  • Unconventionial language used in binary resources: Slovak;
  • The binary contains an unknown PE section name indicative of packing;
  • The binary likely contains encrypted or compressed data.;
  • Authenticode signature is invalid;
  • Uses Windows utilities for basic functionality;
  • Enumerates services, possibly for anti-virtualization;
  • CAPE detected the Tofsee malware family;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the documents located on the victim’s disk drive — so the victim cannot check these files;
  • Blocking the launching of .exe files of security tools
  • Blocking the launching of installation files of anti-virus programs

Ransomware has been a major problem for the last 4 years. It is hard to imagine a more dangerous malware for both individual users and companies. The algorithms used in Backdoor.Win32.Tofsee.cbuk (typically, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need more time than our galaxy already exists, and possibly will exist. However, that malware does not do all these bad things immediately – it can require up to several hours to cipher all of your documents. Therefore, seeing the Backdoor.Win32.Tofsee.cbuk detection is a clear signal that you have to start the removal procedure.

Where did I get the Backdoor.Win32.Tofsee.cbuk?

Typical ways of Backdoor.Win32.Tofsee.cbuk spreading are usual for all other ransomware variants. Those are one-day landing sites where victims are offered to download the free software, so-called bait emails and hacktools. Bait e-mails are a pretty new method in malware spreading – you get the e-mail that simulates some normal notifications about shippings or bank service conditions changes. Inside of the email, there is an infected MS Office file, or a web link which opens the exploit landing site.

Malicious email spam

Malicious email message. This one tricks you to open the phishing website.

Preventing it looks quite easy, but still demands tons of awareness. Malware can hide in various spots, and it is better to stop it even before it invades your system than to rely upon an anti-malware program. Simple cybersecurity awareness is just an essential item in the modern-day world, even if your relationship with a PC stays on YouTube videos. That may keep you a lot of money and time which you would spend while searching for a fixing guide.

Backdoor.Win32.Tofsee.cbuk malware technical details

File Info:

name: 4120EE748EACD7F750BF.mlwpath: /opt/CAPEv2/storage/binaries/a5c617826c27b6619013474537413dd3f300ec7aa672bac8d78325724de7489dcrc32: DA959878md5: 4120ee748eacd7f750bf8df7cd5108fcsha1: 9304fece8eb8dbc8fa2403512f4d162297c53befsha256: a5c617826c27b6619013474537413dd3f300ec7aa672bac8d78325724de7489dsha512: bd3ccb7a2fd87db63d794ce18b97164568ab9851e9080cd1e326d48098428177b4082ca7062be96b9e0f3b1a98414459e681be1e9169c717ea3d93be749b1f1dssdeep: 6144:A18SP5QTaqm7ZGkQEivz3sS6JAOqTuBTQalcHDGKC:A18ASTaqKceJ6fa+H1Ctype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1E554BF1179E68433D1B3293019F4A7716A7EBD710A348A6F67D84B6E4F742D0AA31F23sha3_384: e5e3a4918d90f38ab77687853728ffcbc39115266f8117e4dd6de31884b91743707ed36d6cfde6fae50e120985d87ac4ep_bytes: e81f060000e98efeffff3b0d70004400timestamp: 2018-09-02 02:32:39

Version Info:

0: [No Data]

Backdoor.Win32.Tofsee.cbuk also known as:

Bkav W32.AIDetect.malware2
Lionic Trojan.Win32.Tofsee.m!c
Elastic malicious (high confidence)
Cynet Malicious (score: 100)
FireEye Generic.mg.4120ee748eacd7f7
CAT-QuickHeal Ransom.Stop.MP4
McAfee GenericRXJF-BT!4120EE748EAC
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 005157701 )
BitDefender Trojan.GenericKD.32756186
K7GW Trojan ( 005157701 )
CrowdStrike win/malicious_confidence_100% (W)
VirIT Trojan.Win32.Genus.IKX
Cyren W32/Kryptik.DPC.gen!Eldorado
ESET-NOD32 Win32/Tofsee.BJ
APEX Malicious
Paloalto generic.ml
Kaspersky Backdoor.Win32.Tofsee.cbuk
Alibaba Malware:Win32/km_2e956b.None
NANO-Antivirus Trojan.Win32.Encoder.gjwbkx
MicroWorld-eScan Trojan.GenericKD.32756186
Avast Win32:CoinminerX-gen [Trj]
Rising Trojan.Kryptik!1.BFC8 (KTSE)
Ad-Aware Trojan.GenericKD.32756186
Emsisoft Trojan.GenericKD.32756186 (B)
Comodo Malware@#1sk8xkoxcapbo
DrWeb Trojan.Encoder.858
Zillya Trojan.Tofsee.Win32.2150
TrendMicro Trojan.Win32.URSNIF.JAFII
McAfee-GW-Edition BehavesLike.Win32.Trojan.dh
Sophos Mal/Generic-R + Mal/GandCrab-G
Ikarus Trojan.Win32.Tofsee
GData Win32.Trojan.Agent.IUSLGG
Jiangmin Trojan.Generic.eainf
Webroot W32.Trojan.Gen
Avira TR/AD.Tofsee.owccd
MAX malware (ai score=83)
Arcabit Trojan.Generic.D1F3D1DA
SUPERAntiSpyware Trojan.Agent/Gen-Azorult
Microsoft Trojan:Win32/Ursnif.VDK!MTB
AhnLab-V3 Trojan/Win32.MalPe.R301118
VBA32 BScope.Trojan.Wacatac
ALYac Trojan.GenericKD.32756186
Malwarebytes Trojan.MalPack.GS
TrendMicro-HouseCall Trojan.Win32.URSNIF.JAFII
Tencent Malware.Win32.Gencirc.114de93b
Yandex Trojan.GenAsa!mWqSPTs8E4g
SentinelOne Static AI – Suspicious PE
MaxSecure Trojan.Malware.74716491.susgen
Fortinet W32/GenKryptik.DYUP!tr
BitDefenderTheta Gen:NN.ZexaF.34742.ryW@aWtKe1bG
AVG Win32:CoinminerX-gen [Trj]
Cybereason malicious.48eacd
Panda Trj/WLT.E

How to remove Backdoor.Win32.Tofsee.cbuk?

About the author

Robert Bailey

Security engineer focused on malware behavior, removal workflows, and Windows hardening. Robert reviews threat articles for practical accuracy, checking detection names, symptoms, and cleanup steps before publication.

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