Backdoor.Tofsee

Written by Robert Bailey

What is Backdoor.Tofsee infection?

In this short article you will certainly discover concerning the meaning of Backdoor.Tofsee as well as its negative impact on your computer system. Such ransomware are a type of malware that is elaborated by online fraudulences to require paying the ransom by a sufferer.

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In the majority of the instances, Backdoor.Tofsee virus will advise its victims to launch funds transfer for the function of counteracting the changes that the Trojan infection has actually introduced to the victim’s tool.

Backdoor.Tofsee Summary

These adjustments can be as follows:

  • Executable code extraction;
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • Attempts to connect to a dead IP:Port (3 unique times);
  • Creates RWX memory;
  • 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);
  • Ciphering the documents situated on the target’s disk drive — so the sufferer can no more use the data;
  • Preventing regular access to the target’s workstation;

Related domains:

microsoft-com.mail.protection.outlook.com Ransomware-GIO!34945D2976EE

Backdoor.Tofsee

One of the most regular networks whereby Backdoor.Tofsee Trojans are infused are:

  • By ways of phishing e-mails;
  • As a repercussion of individual winding up on a source that organizes a destructive software application;

As soon as the Trojan is successfully infused, it will certainly either cipher the information on the sufferer’s PC or stop the gadget from functioning in a proper fashion – while also positioning a ransom note that states the demand for the sufferers to effect the settlement for the function of decrypting the records or bring back the data system back to the preliminary problem. In a lot of instances, the ransom note will show up when the client restarts the PC after the system has currently been harmed.

Backdoor.Tofsee circulation networks.

In various edges of the world, Backdoor.Tofsee grows by leaps and also bounds. However, the ransom notes and also techniques of extorting the ransom quantity may differ depending upon specific neighborhood (regional) setups. The ransom money notes and also tricks of extorting the ransom money amount may vary depending on certain local (regional) settings.

Ransomware injection

As an example:

    Faulty notifies about unlicensed software.

    In specific locations, the Trojans typically wrongfully report having identified some unlicensed applications allowed on the target’s device. The alert then requires the individual to pay the ransom.

    Faulty declarations regarding prohibited web content.

    In nations where software piracy is much less popular, this technique is not as reliable for the cyber scams. Alternatively, the Backdoor.Tofsee popup alert might falsely declare to be originating from a law enforcement institution as well as will report having located youngster pornography or various other unlawful data on the gadget.

    Backdoor.Tofsee popup alert may wrongly assert to be acquiring from a law enforcement establishment and also will report having located child pornography or other illegal data on the gadget. The alert will similarly contain a demand for the individual to pay the ransom.

Technical details

File Info:

crc32: 017CE56C
md5: 34945d2976eed2d45ecaec8cd42f0ff7
name: 34945D2976EED2D45ECAEC8CD42F0FF7.mlw
sha1: 799f1bcfd9da458b4a7deef70ee57e9261f8e4a3
sha256: 5fbaa23d2582ceb705d33ad7256d687e8e6d924dfa2854388069932fabac1650
sha512: 565b24e8b419edf9bc7ad90c3994a3b9be674bf550b7469ea3f70b4028a5bbaab29856ace6544d36e32f4469c26e3553ad576bdac36edf1810ce98aff9988dca
ssdeep: 196608:Qbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb:
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Backdoor.Tofsee also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetectVM.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.Agent.CPVH
FireEye Generic.mg.34945d2976eed2d4
CAT-QuickHeal Backdoor.Tofsee.CH4
Qihoo-360 HEUR/QVM19.1.3FBB.Malware.Gen
ALYac Trojan.Agent.CPVH
Cylance Unsafe
Sangfor Malware
K7AntiVirus Trojan ( 0051b1371 )
BitDefender Trojan.Agent.CPVH
K7GW Trojan ( 0051b1371 )
Cybereason malicious.976eed
TrendMicro Mal_Tofsee
BitDefenderTheta Gen:NN.ZexaF.34634.@tW@aSlkxHp
Cyren W32/Kryptik.CBY.gen!Eldorado
Symantec Packed.Generic.493
APEX Malicious
Avast Win32:Malware-gen
Kaspersky HEUR:Trojan.Win32.Generic
NANO-Antivirus Trojan.Win32.Poison.euukiy
Rising Backdoor.Tofsee!8.1E9 (TFE:1:Nb59H3b4ONE)
Ad-Aware Trojan.Agent.CPVH
Emsisoft Trojan.Agent.CPVH (B)
Comodo TrojWare.Win32.Crypt.C@7vajd0
F-Secure Heuristic.HEUR/AGEN.1111254
DrWeb Trojan.PWS.Siggen2.1744
Zillya Backdoor.Poison.Win32.87612
Invincea ML/PE-A + Mal/Elenoocka-E
McAfee-GW-Edition BehavesLike.Win32.Generic.rc
Sophos Mal/Elenoocka-E
Ikarus Trojan.Win32.Tofsee
Jiangmin Backdoor.Poison.ben
Avira HEUR/AGEN.1111254
Antiy-AVL Trojan/Win32.TSGeneric
Microsoft Trojan:Win32/Wacatac.D5!ml
Arcabit Trojan.Agent.CPVH
AhnLab-V3 Backdoor/Win32.RL_Poison.R282464
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Win32.Trojan.Kryptik.IO
Cynet Malicious (score: 100)
ESET-NOD32 a variant of Win32/Kryptik.FYRS
Acronis suspicious
McAfee Ransomware-GIO!34945D2976EE
MAX malware (ai score=87)
VBA32 BScope.Backdoor.Tofsee
Malwarebytes Backdoor.Tofsee
TrendMicro-HouseCall Mal_Tofsee
Tencent Malware.Win32.Gencirc.10ce10aa
Yandex Trojan.GenAsa!3P9yM4lFMog
SentinelOne Static AI – Suspicious PE
eGambit Unsafe.AI_Score_96%
Fortinet W32/Kryptik.CQXJ!tr
AVG Win32:Malware-gen
CrowdStrike win/malicious_confidence_100% (D)

How to remove Backdoor.Tofsee virus?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
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There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft2.

Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

Run the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-fix.exe file to install GridinSoft Anti-Malware on your system.

Run Setup.exe

An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.

GridinSoft Anti-Malware Setup

Press “Install” button.

GridinSoft Anti-Malware Install

Once installed, Anti-Malware will automatically run.

GridinSoft Anti-Malware Splash-Screen

Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your system for Backdoor.Tofsee files and other malicious programs. This process can take a 20-30 minutes, so I suggest you periodically check on the status of the scan process.

GridinSoft Anti-Malware Scanning

Click on “Clean Now”.

When the scan has finished, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

GridinSoft Anti-Malware will scan and clean your PC for free in the trial period. The free version offer real-time protection for first 2 days. If you want to be fully protected at all times – I can recommended you to purchase a full version:

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If the guide doesn’t help you to remove Backdoor.Tofsee you can always ask me in the comments for getting help.

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References

  1. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  2. More information about GridinSoft products: http://gridinsoft.com/products/

About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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