Trojan:Win32/Gandcrab.RG!MTB

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

What is Trojan:Win32/Gandcrab.RG!MTB infection?

In this short article you will discover about the meaning of Trojan:Win32/Gandcrab.RG!MTB as well as its unfavorable impact on your computer. Such ransomware are a type of malware that is specified by on the internet frauds to demand paying the ransom by a victim.

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Most of the situations, Trojan:Win32/Gandcrab.RG!MTB infection will certainly instruct its victims to initiate funds transfer for the objective of counteracting the amendments that the Trojan infection has presented to the sufferer’s gadget.

Trojan:Win32/Gandcrab.RG!MTB Summary

These alterations can be as adheres to:

  • 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.
  • 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.
  • 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.

  • Performs some HTTP requests;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses Windows utilities for basic functionality;
  • 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
  • Attempts to identify installed AV products by installation directory;
  • Checks the CPU name from registry, possibly for anti-virtualization;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Creates a slightly modified copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers situated on the victim’s hard disk — so the victim can no longer use the data;
  • Preventing regular accessibility to the target’s workstation;
Similar behavior
Related domains
z.whorecord.xyzTrojan.Ransom.GandCrab.Gen.2
a.tomx.xyzTrojan.Ransom.GandCrab.Gen.2
ipv4bot.whatismyipaddress.comTrojan.Ransom.GandCrab.Gen.2
ns1.corp-servers.ruTrojan.Ransom.GandCrab.Gen.2
zonealarm.bitTrojan.Ransom.GandCrab.Gen.2
ns2.corp-servers.ruTrojan.Ransom.GandCrab.Gen.2
ransomware.bitTrojan.Ransom.GandCrab.Gen.2

Trojan:Win32/Gandcrab.RG!MTB

The most typical channels through which Trojan:Win32/Gandcrab.RG!MTB Ransomware Trojans are injected are:

  • By means of phishing e-mails;
  • As a consequence of user winding up on a source that hosts a malicious software application;

As quickly as the Trojan is successfully infused, it will certainly either cipher the information on the victim’s computer or avoid the gadget from working in an appropriate fashion – while additionally placing a ransom note that states the demand for the targets to impact the repayment for the purpose of decrypting the records or bring back the documents system back to the preliminary problem. In the majority of circumstances, the ransom money note will turn up when the client restarts the COMPUTER after the system has actually currently been harmed.

Trojan:Win32/Gandcrab.RG!MTB distribution networks.

In various edges of the world, Trojan:Win32/Gandcrab.RG!MTB grows by jumps as well as bounds. Nevertheless, the ransom notes as well as methods of extorting the ransom quantity may differ relying on certain neighborhood (local) setups. The ransom notes and also methods of extorting the ransom amount might vary depending on certain neighborhood (regional) setups.

Ransomware injection

For example:

    Faulty notifies regarding unlicensed software program.

    In particular areas, the Trojans usually wrongfully report having actually found some unlicensed applications made it possible for on the victim’s tool. The alert after that demands the customer to pay the ransom money.

    Faulty statements regarding prohibited content.

    In countries where software application piracy is much less preferred, this technique is not as reliable for the cyber scams. Additionally, the Trojan:Win32/Gandcrab.RG!MTB popup alert might falsely assert to be deriving from a police establishment as well as will report having situated youngster pornography or other unlawful data on the device.

    Trojan:Win32/Gandcrab.RG!MTB popup alert may falsely claim to be obtaining from a law enforcement institution and will certainly report having located child porn or various other prohibited information on the gadget. The alert will in a similar way include a requirement for the user to pay the ransom.

Technical details

File Info:

crc32: F67761D1
md5: 7c06687f263386a8b814e8c64dd0b302
name: 7C06687F263386A8B814E8C64DD0B302.mlw
sha1: aaa65558e7fcdb296b3532d36ccc68233a5d4f51
sha256: 4dbef1b3c74933a38bedfb0abeb7272fc4fd5fc4014482d9808e75d8e3bf1293
sha512: b50ac1cd3818b74327cac199d7228fed1c9209c67954b5b74018729a66ed8d081837bdb0d8247de9f119298d50aae5c29f612545edb6c16e9cd6c3f004552bfe
ssdeep: 3072:Xw/ELLdKD2Hd5Txogc7hDZI6DCpeCq/atKNCscze/Gw0U/X9/:WELhfxogc7pZncepiKYBe/Gw/X9/
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2017, gemkerdoip
InternalName: toofirtyless.exe
FileVersion: 5.0.0.0
ProductVersion: 5.0.0.0
Translation: 0x0809 0x04b0

Trojan:Win32/Gandcrab.RG!MTB also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
Elasticmalicious (high confidence)
MicroWorld-eScanTrojan.Ransom.GandCrab.Gen.2
FireEyeGeneric.mg.7c06687f263386a8
CAT-QuickHealTrojan.Mauvaise.SL1
ALYacTrojan.Ransom.GandCrab.Gen.2
CylanceUnsafe
ZillyaTrojan.GandCrypt.Win32.145
SangforWin.Packed.Gandcrab-6552923-4
K7AntiVirusTrojan ( 00532e3d1 )
BitDefenderTrojan.Ransom.GandCrab.Gen.2
K7GWTrojan ( 655333331 )
CrowdStrikewin/malicious_confidence_100% (D)
BitDefenderThetaGen:NN.ZexaF.34590.lu1@au8kXkp
CyrenW32/S-55df74a7!Eldorado
SymantecPacked.Generic.525
APEXMalicious
AvastWin32:Malware-gen
ClamAVWin.Packed.Gandcrab-6515326-1
KasperskyHEUR:Trojan.Win32.Generic
NANO-AntivirusTrojan.Win32.Chapak.faitdr
ViRobotTrojan.Win32.GandCrab.Gen.A
RisingTrojan.Kryptik!8.8 (RDMK:cmRtazrHtvQAqYBJhp3ARWxanYvK)
Ad-AwareTrojan.Ransom.GandCrab.Gen.2
SophosMal/Generic-R + Mal/Agent-AUL
ComodoTrojWare.Win32.GandCrab.GFOU@7lwhhc
F-SecureTrojan.TR/Crypt.XPACK.nplcj
DrWebTrojan.Encoder.24384
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom.Win32.GANDCRAB.SMLA.hp
McAfee-GW-EditionBehavesLike.Win32.Generic.cc
EmsisoftTrojan.Generic (A)
IkarusTrojan-Ransom.GandCrab
JiangminTrojan.Chapak.ek
MaxSecureRansomeware.CRAB.gen
AviraTR/Crypt.XPACK.nplcj
MAXmalware (ai score=99)
Antiy-AVLTrojan/Win32.Chapak
MicrosoftTrojan:Win32/Gandcrab.RG!MTB
ArcabitTrojan.Ransom.GandCrab.Gen.2
ZoneAlarmHEUR:Trojan.Win32.Generic
GDataTrojan.Ransom.GandCrab.Gen.2
CynetMalicious (score: 100)
AhnLab-V3Win-Trojan/Gandcrab.Exp
Acronissuspicious
McAfeePacked-FCX!7C06687F2633
TACHYONRansom/W32.GandCrab
VBA32Trojan.Encoder
MalwarebytesTrojan.MalPack
PandaTrj/Genetic.gen
ZonerTrojan.Win32.67712
ESET-NOD32Win32/Filecoder.GandCrab.B
TrendMicro-HouseCallRansom.Win32.GANDCRAB.SMLA.hp
TencentMalware.Win32.Gencirc.10b231c6
YandexTrojan.GenAsa!N9iZOcSND+U
SentinelOneStatic AI – Malicious PE
eGambitUnsafe.AI_Score_89%
FortinetW32/Kryptik.HDRC!tr
AVGWin32:Malware-gen
Cybereasonmalicious.f26338
Paloaltogeneric.ml
Qihoo-360Win32/Trojan.Ransom.ec9

How to remove Trojan:Win32/Gandcrab.RG!MTB 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 Trojan:Win32/Gandcrab.RG!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/Gandcrab.RG!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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