Backdoor.Win32.Tofsee

Written by Robert Bailey

What is Backdoor.Win32.Tofsee infection?

In this post you will discover about the interpretation of Backdoor.Win32.Tofsee and its adverse influence on your computer system. Such ransomware are a form of malware that is clarified by on the internet frauds to demand paying the ransom money by a target.

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Most of the instances, Backdoor.Win32.Tofsee virus will advise its targets to initiate funds transfer for the objective of counteracting the modifications that the Trojan infection has introduced to the sufferer’s gadget.

Backdoor.Win32.Tofsee Summary

These alterations can be as adheres to:

  • 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;
  • Unconventionial language used in binary resources: Latvian;
  • Uses Windows utilities for basic functionality;
  • Enumerates services, possibly for anti-virtualization;
  • Executed a process and injected code into it, probably while unpacking;
  • Installs itself for autorun at Windows startup;
  • Attempts to interact with an Alternate Data Stream (ADS);
  • Anomalous binary characteristics;
  • Ciphering the documents situated on the sufferer’s hard disk drive — so the sufferer can no more use the data;
  • Preventing routine access to the victim’s workstation;

Related domains:

z.whorecord.xyz Ransom.Win32.STOP.SMYXBFX.hp
a.tomx.xyz Ransom.Win32.STOP.SMYXBFX.hp
microsoft-com.mail.protection.outlook.com Ransom.Win32.STOP.SMYXBFX.hp

Backdoor.Win32.Tofsee

The most typical networks whereby Backdoor.Win32.Tofsee Trojans are injected are:

  • By ways of phishing emails;
  • As an effect of user winding up on a resource that holds a malicious software;

As soon as the Trojan is effectively infused, it will certainly either cipher the data on the target’s computer or avoid the tool from working in a correct manner – while also placing a ransom money note that points out the requirement for the sufferers to effect the repayment for the function of decrypting the records or restoring the data system back to the preliminary condition. In a lot of instances, the ransom note will show up when the customer restarts the COMPUTER after the system has actually currently been harmed.

Backdoor.Win32.Tofsee distribution networks.

In different edges of the globe, Backdoor.Win32.Tofsee grows by jumps and also bounds. Nonetheless, the ransom notes and also techniques of obtaining the ransom money quantity may differ depending on certain local (local) settings. The ransom notes and tricks of extorting the ransom money amount might differ depending on specific regional (regional) setups.

Ransomware injection

For example:

    Faulty notifies concerning unlicensed software program.

    In certain areas, the Trojans often wrongfully report having found some unlicensed applications made it possible for on the sufferer’s device. The sharp after that requires the customer to pay the ransom money.

    Faulty statements about prohibited web content.

    In countries where software piracy is less popular, this approach is not as effective for the cyber fraudulences. Alternatively, the Backdoor.Win32.Tofsee popup alert might falsely assert to be deriving from a law enforcement organization as well as will report having situated kid pornography or other prohibited information on the device.

    Backdoor.Win32.Tofsee popup alert may wrongly assert to be deriving from a law enforcement organization and will certainly report having situated child porn or various other illegal data on the gadget. The alert will similarly have a need for the customer to pay the ransom money.

Technical details

File Info:

crc32: 7596BFBE
md5: d0314e0a2e012ef1a9c11118da29fd7f
name: D0314E0A2E012EF1A9C11118DA29FD7F.mlw
sha1: 3046a60b340b02b0da510edeebdd7ff77f6dc7d8
sha256: 0c79433c9f2fcc386d54c67d3bf1a0c002d6dd74d32c4888b4a8450f13e7383f
sha512: ba2a904e716360ef5e2a3031efbec19b4b4c70ce79cac17f404061eb311c5d7d31583b7617e51c367f8a45417b80406994da632d99e1920935f5b2be3a9be76e
ssdeep: 12288:Apk4nYiDM9TmqNzPkaARFwJK1eDkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk:J4nYiITDzcT+JWe
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translations: 0x48e6 0x035b

Backdoor.Win32.Tofsee also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Riskware ( 0040eff71 )
Elastic malicious (high confidence)
DrWeb Trojan.Siggen14.5648
Cynet Malicious (score: 100)
ALYac Gen:Variant.Zusy.390485
Cylance Unsafe
Zillya Trojan.Kryptik.Win32.3352687
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_80% (D)
K7GW Riskware ( 0040eff71 )
Cybereason malicious.b340b0
Cyren W32/Kryptik.ELA.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.HLMH
APEX Malicious
Avast Win32:PWSX-gen [Trj]
ClamAV Win.Packed.Generic-9874443-0
Kaspersky HEUR:Backdoor.Win32.Tofsee.gen
BitDefender Gen:Variant.Zusy.390485
MicroWorld-eScan Gen:Variant.Zusy.390485
Ad-Aware Gen:Variant.Zusy.390485
Sophos ML/PE-A + Troj/Kryptik-TR
BitDefenderTheta Gen:NN.ZexaF.34790.@x0@aOH@k5bI
TrendMicro Ransom.Win32.STOP.SMYXBFX.hp
McAfee-GW-Edition BehavesLike.Win32.Dropper.wz
FireEye Generic.mg.d0314e0a2e012ef1
Emsisoft Trojan-Spy.Agent (A)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Zenpak.hpk
eGambit Unsafe.AI_Score_99%
Antiy-AVL Trojan/Generic.ASMalwS.33ACC02
Microsoft Trojan:Win32/Azorult.RM!MTB
Gridinsoft Trojan.Win32.Packed.lu!heur
GData Gen:Variant.Zusy.390485
AhnLab-V3 Trojan/Win.Glupteba.R427279
Acronis suspicious
McAfee Packed-GDT!D0314E0A2E01
MAX malware (ai score=81)
VBA32 BScope.Trojan.Crypt
Malwarebytes Trojan.MalPack.GS
Panda Trj/GdSda.A
Rising Trojan.Kryptik!1.D792 (CLASSIC)
Yandex Trojan.Kryptik!5UL+ZCvhRGc
Ikarus Trojan.Win32.Crypt
Fortinet W32/Kryptik.HLMH!tr
AVG Win32:PWSX-gen [Trj]
Qihoo-360 HEUR/QVM10.1.51DF.Malware.Gen

How to remove Backdoor.Win32.Tofsee ransomware?

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.Win32.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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Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Backdoor.Win32.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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