Trojan:Win32/GandCrab.GD!MTB

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

What is Trojan:Win32/GandCrab.GD!MTB infection?

In this short article you will find regarding the interpretation of Trojan:Win32/GandCrab.GD!MTB and its adverse influence on your computer system. Such ransomware are a kind of malware that is specified by on the internet frauds to demand paying the ransom money by a target.

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In the majority of the instances, Trojan:Win32/GandCrab.GD!MTB infection will instruct its sufferers to start funds move for the purpose of counteracting the amendments that the Trojan infection has actually introduced to the victim’s tool.

Trojan:Win32/GandCrab.GD!MTB Summary

These modifications can be as follows:

  • 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);
  • Injection (Process Hollowing);
  • 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 created a hidden window;
  • Executed a process and injected code into it, probably while unpacking;
  • Detects Sandboxie through the presence of a library;
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Checks the presence of disk drives in the registry, possibly for anti-virtualization;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the records located on the target’s disk drive — so the sufferer can no more use the information;
  • Preventing routine access to the sufferer’s workstation;

Trojan:Win32/GandCrab.GD!MTB

One of the most regular networks whereby Trojan:Win32/GandCrab.GD!MTB are injected are:

  • By means of phishing e-mails;
  • As a repercussion of user ending up on a source that organizes a destructive software program;

As quickly as the Trojan is effectively infused, it will either cipher the data on the target’s computer or protect against the device from operating in a correct way – while likewise putting a ransom money note that points out the requirement for the targets to impact the settlement for the function of decrypting the records or recovering the file system back to the preliminary condition. In the majority of instances, the ransom note will show up when the client reboots the COMPUTER after the system has currently been damaged.

Trojan:Win32/GandCrab.GD!MTB distribution networks.

In numerous edges of the globe, Trojan:Win32/GandCrab.GD!MTB grows by jumps and bounds. Nonetheless, the ransom notes and methods of extorting the ransom money amount may differ relying on specific regional (local) settings. The ransom notes and also tricks of obtaining the ransom money quantity might differ depending on specific regional (regional) settings.

Ransomware injection

For instance:

    Faulty informs concerning unlicensed software.

    In specific areas, the Trojans frequently wrongfully report having actually found some unlicensed applications enabled on the victim’s gadget. The sharp after that requires the customer to pay the ransom.

    Faulty statements regarding prohibited web content.

    In nations where software application piracy is less preferred, this method is not as effective for the cyber fraudulences. Alternatively, the Trojan:Win32/GandCrab.GD!MTB popup alert might incorrectly assert to be deriving from a law enforcement institution and also will certainly report having located child pornography or other unlawful information on the device.

    Trojan:Win32/GandCrab.GD!MTB popup alert might falsely assert to be deriving from a law enforcement institution and also will report having located youngster pornography or various other unlawful data on the device. The alert will in a similar way have a need for the user to pay the ransom.

Technical details

File Info:

crc32: 9BF280F4
md5: 88a06334c269366eb93381908ee288d2
name: 88A06334C269366EB93381908EE288D2.mlw
sha1: b3570e62f7cd9305a24e4faf06dee13b44cfdde4
sha256: 4f15f039f502a470a2f79e1690c406a4d6380327ef216ac76af973f1904cf42e
sha512: 6c45275fadefa4058de89b22ab9dbe4e8cd3b2bc85f1ec0342f73980c2c338f8336068627f4c405905f2309e5e58121a689a03a828c531cca92d5870aac3072f
ssdeep: 1536:j5TWYnCP3eV55bJGaDwCCcBuiTOkgxkmaIc7a8PkILeFb/ZGQ/iZLUNk8UW2c:BvV55bJGGttTfgzaIc7akkSehESgrc
type: PE32 executable (GUI) Intel 80386 system file, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2017, bcfivedd
FileVersion: 1.3.6
ProductVersion: 1.0.4.11

Trojan:Win32/GandCrab.GD!MTB also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
FireEye Generic.mg.88a06334c269366e
Qihoo-360 Win32/Trojan.Generic.HwoCUFcA
McAfee Trojan-FPST!88A06334C269
Cylance Unsafe
Zillya Adware.Propagate.Win32.33
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 00543e471 )
BitDefender Trojan.Brsecmon.1
K7GW Trojan ( 00543e471 )
Cybereason malicious.4c2693
BitDefenderTheta Gen:NN.ZexaF.34590.iu0@a0!jeuci
Cyren W32/Kryptik.NC.gen!Eldorado
Symantec Packed.Generic.525
APEX Malicious
Avast Win32:TrojanX-gen [Trj]
Cynet Malicious (score: 100)
Kaspersky HEUR:Trojan.Win32.Generic
Alibaba Trojan:Win32/GandCrab.32654898
NANO-Antivirus Trojan.Win32.Propagate.fkewmy
MicroWorld-eScan Trojan.Brsecmon.1
Rising Downloader.Vigorf!8.F626 (C64:YzY0OobFb80tjEi7)
Ad-Aware Trojan.Brsecmon.1
Sophos Mal/Generic-R + Mal/GandCrab-G
Comodo TrojWare.Win32.Ransom.Gandcrab.GC@7zlhhh
F-Secure Trojan.TR/AD.MalwareCrypter.DR
DrWeb Trojan.Siggen8.5408
TrendMicro Ransom.Win32.GANDCRAB.SMKLI.hp
McAfee-GW-Edition BehavesLike.Win32.Trojan.ch
Emsisoft Trojan.Brsecmon.1 (B)
Ikarus Trojan.Inject
Jiangmin Trojan.Propagate.ke
Webroot W32.Adware.Installcore
Avira TR/AD.MalwareCrypter.DR
Antiy-AVL Trojan/Win32.Propagate
Microsoft Trojan:Win32/GandCrab.GD!MTB
Arcabit Trojan.Brsecmon.1
SUPERAntiSpyware Trojan.Agent/Gen-Kryptik
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Trojan.Brsecmon.1
AhnLab-V3 Malware/Win32.Generic.R245022
VBA32 BScope.Trojan.Vigorf
ALYac Trojan.Brsecmon.1
MAX malware (ai score=81)
Malwarebytes Trojan.MalPack
Panda Trj/GdSda.A
ESET-NOD32 a variant of Win32/Kryptik.GMQF
TrendMicro-HouseCall Ransom.Win32.GANDCRAB.SMKLI.hp
Tencent Win32.Trojan.Generic.Ecke
Yandex Trojan.GenAsa!qmhjGs1myXE
eGambit Unsafe.AI_Score_83%
Fortinet W32/Kryptik.GNAQ!tr
AVG Win32:TrojanX-gen [Trj]
Paloalto generic.ml
CrowdStrike win/malicious_confidence_100% (W)

How to remove Trojan:Win32/GandCrab.GD!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.GD!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.GD!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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