Trojan:Win32/Tofsee.RTK!MTB

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

What is Trojan:Win32/Tofsee.RTK!MTB infection?

In this short article you will certainly discover concerning the interpretation of Trojan:Win32/Tofsee.RTK!MTB and its negative effect on your computer system. Such ransomware are a form of malware that is elaborated by on the internet scams to demand paying the ransom by a target.

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In the majority of the cases, Trojan:Win32/Tofsee.RTK!MTB virus will certainly advise its sufferers to start funds move for the purpose of neutralizing the modifications that the Trojan infection has introduced to the target’s tool.

Trojan:Win32/Tofsee.RTK!MTB Summary

These modifications can be as complies with:

  • Executable code extraction. Cybercriminals often use binary packers to hinder the malicious code from reverse-engineered by malware analysts. A packer is a tool that compresses, encrypts, and modifies a malicious file’s format. Sometimes packers can be used for legitimate ends, for example, to protect a program against cracking or copying.
  • Injection (inter-process);
  • Attempts to connect to a dead IP:Port (1 unique times);
  • Creates RWX memory. There is a security trick with memory regions that allows an attacker to fill a buffer with a shellcode and then execute it. Filling a buffer with shellcode isn’t a big deal, it’s just data. The problem arises when the attacker is able to control the instruction pointer (EIP), usually by corrupting a function’s stack frame using a stack-based buffer overflow, and then changing the flow of execution by assigning this pointer to the address of the shellcode.
  • A process attempted to delay the analysis task.;
  • Expresses interest in specific running processes;
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • Unconventionial language used in binary resources: Hindi;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Deletes its original binary from disk;
  • Installs itself for autorun at Windows startup.

    There is simple tactic using the Windows startup folder located at:
    C:\Users\[user-name]\AppData\Roaming\Microsoft\Windows\StartMenu\Programs\Startup Shortcut links (.lnk extension) placed in this folder will cause Windows to launch the application each time [user-name] logs into Windows.

    The registry run keys perform the same action, and can be located in different locations:

    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • Creates a copy of itself;
  • Ciphering the documents found on the sufferer’s hard disk drive — so the victim can no more use the data;
  • Preventing routine accessibility to the target’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.
Similar behavior
Related domains
cloudupdates.co.zaRansom:Win32/GandCrab.aef00935

Trojan:Win32/Tofsee.RTK!MTB

The most normal channels through which Trojan:Win32/Tofsee.RTK!MTB Ransomware are injected are:

  • By means of phishing e-mails;
  • As an effect of user winding up on a resource that organizes a destructive software;

As soon as the Trojan is successfully injected, it will certainly either cipher the data on the target’s computer or protect against the gadget from operating in a correct way – while also placing a ransom note that points out the demand for the victims to impact the payment for the objective of decrypting the documents or restoring the file system back to the initial problem. In many instances, the ransom money note will certainly show up when the customer restarts the PC after the system has actually already been harmed.

Trojan:Win32/Tofsee.RTK!MTB distribution channels.

In numerous edges of the globe, Trojan:Win32/Tofsee.RTK!MTB expands by leaps and also bounds. Nevertheless, the ransom notes and techniques of obtaining the ransom quantity may differ relying on specific neighborhood (regional) setups. The ransom notes and tricks of extorting the ransom amount might vary depending on particular local (regional) setups.

Ransomware injection

As an example:

    Faulty signals concerning unlicensed software.

    In certain areas, the Trojans frequently wrongfully report having actually identified some unlicensed applications enabled on the sufferer’s tool. The sharp after that requires the user to pay the ransom.

    Faulty statements regarding illegal web content.

    In countries where software program piracy is much less popular, this method is not as reliable for the cyber frauds. Conversely, the Trojan:Win32/Tofsee.RTK!MTB popup alert may incorrectly declare to be stemming from a police organization as well as will report having located youngster porn or various other unlawful data on the gadget.

    Trojan:Win32/Tofsee.RTK!MTB popup alert may wrongly declare to be acquiring from a legislation enforcement establishment and also will certainly report having situated youngster pornography or various other prohibited information on the device. The alert will likewise include a demand for the individual to pay the ransom money.

Technical details

File Info:

crc32: 7914F07C
md5: 87458f08d1c715853dfcbdc7510566be
name: buer.exe
sha1: 7b1a5d9bb21d852a6dbf3146fabb1cd1ca276ed9
sha256: 522a42c27449aba54fa539f28082f1ddc2e8e6ea4f3dd29141f702a5ad82e29f
sha512: ed91a9a42c494076d5a57bde8d8c3247e8fa1bcf85af8e36e304d9dfd00223b2f4f306c1b3474d3afe7d6b2f9f77dc7b579d3d7b96770699d88e947dc2c685c3
ssdeep: 3072:aGSStsY7EPL3geMYWJzE3oI9bmKPvFde/HX2WHsopmuNgynL2tLRlSn40:aGSlJ8eMTA3oI9blPvu/HXZTCq+LPS
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Trojan:Win32/Tofsee.RTK!MTB also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetectVM.malware
MicroWorld-eScanGen:Variant.Ursu.848669
FireEyeGeneric.mg.87458f08d1c71585
Qihoo-360HEUR/QVM10.1.EAFE.Malware.Gen
McAfeeTrojan-FSBM!87458F08D1C7
CylanceUnsafe
AegisLabTrojan.Multi.Generic.4!c
SangforMalware
K7AntiVirusTrojan ( 00565c0c1 )
BitDefenderGen:Variant.Ursu.848669
K7GWTrojan ( 00565c0c1 )
Cybereasonmalicious.bb21d8
BitDefenderThetaGen:NN.ZexaF.34108.rqW@aiF0ZGeI
SymantecPacked.Generic.525
APEXMalicious
GDataWin32.Trojan-Stealer.TinyNuke.2CEUVE
KasperskyUDS:DangerousObject.Multi.Generic
AlibabaRansom:Win32/GandCrab.aef00935
Endgamemalicious (high confidence)
SophosMal/Generic-S
Invinceaheuristic
McAfee-GW-EditionBehavesLike.Win32.Generic.dh
Trapminemalicious.moderate.ml.score
EmsisoftTrojan.Crypt (A)
IkarusWin32.Outbreak
WebrootW32.Trojan.Gen
MAXmalware (ai score=86)
MicrosoftTrojan:Win32/Tofsee.RTK!MTB
ZoneAlarmUDS:DangerousObject.Multi.Generic
Acronissuspicious
Ad-AwareGen:Variant.Ursu.848669
MalwarebytesTrojan.MalPack.GS
ESET-NOD32a variant of Win32/Kryptik.HDAH
RisingTrojan.Kryptik!1.C5BA (CLOUD)
SentinelOneDFI – Malicious PE
eGambitUnsafe.AI_Score_100%
AVGFileRepMalware
Paloaltogeneric.ml
CrowdStrikewin/malicious_confidence_90% (W)
MaxSecureTrojan.Malware.300983.susgen

How to remove Trojan:Win32/Tofsee.RTK!MTB virus?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
Reasons why I would recommend GridinSoft1

The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes.2.

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 Trojan:Win32/Tofsee.RTK!MTB 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 Trojan:Win32/Tofsee.RTK!MTB 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: https://gridinsoft.com/comparison

About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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