Ransom:Win32/Gandcrab.D!MTB

Written by Robert Bailey

What is Ransom:Win32/Gandcrab.D!MTB infection?

In this article you will discover concerning the definition of Ransom:Win32/Gandcrab.D!MTB as well as its unfavorable effect on your computer. Such ransomware are a type of malware that is specified by on the internet scams to demand paying the ransom money by a target.

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In the majority of the situations, Ransom:Win32/Gandcrab.D!MTB infection will certainly advise its sufferers to start funds transfer for the function of reducing the effects of the amendments that the Trojan infection has presented to the target’s device.

Ransom:Win32/Gandcrab.D!MTB Summary

These modifications 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.
  • A process attempted to delay the analysis task.;
  • 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;
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • 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
  • Checks the CPU name from registry, possibly for anti-virtualization;
  • 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 documents found on the target’s disk drive — so the victim can no more use the information;
  • Preventing regular accessibility to the victim’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.wowservers.ruTrojan.Ransom.GandCrab.Gen.2
carder.bitTrojan.Ransom.GandCrab.Gen.2
ns2.wowservers.ruTrojan.Ransom.GandCrab.Gen.2
ransomware.bitTrojan.Ransom.GandCrab.Gen.2

Ransom:Win32/Gandcrab.D!MTB

One of the most regular channels through which Ransom:Win32/Gandcrab.D!MTB Ransomware Trojans are injected are:

  • By means of phishing e-mails;
  • As a repercussion of individual ending up on a resource that hosts a destructive software;

As quickly as the Trojan is effectively injected, it will either cipher the data on the target’s computer or avoid the tool from functioning in a correct manner – while additionally putting a ransom note that points out the need for the sufferers to effect the settlement for the purpose of decrypting the files or restoring the data system back to the preliminary problem. In the majority of instances, the ransom money note will show up when the customer reboots the PC after the system has currently been damaged.

Ransom:Win32/Gandcrab.D!MTB circulation networks.

In different corners of the world, Ransom:Win32/Gandcrab.D!MTB expands by jumps as well as bounds. However, the ransom money notes and also techniques of obtaining the ransom money quantity might vary relying on specific local (regional) setups. The ransom money notes and also methods of extorting the ransom money quantity might differ depending on certain neighborhood (local) setups.

Ransomware injection

For instance:

    Faulty alerts regarding unlicensed software application.

    In particular locations, the Trojans often wrongfully report having actually identified some unlicensed applications made it possible for on the sufferer’s gadget. The alert then demands the individual to pay the ransom.

    Faulty declarations regarding illegal content.

    In nations where software piracy is less preferred, this method is not as effective for the cyber scams. Conversely, the Ransom:Win32/Gandcrab.D!MTB popup alert may wrongly declare to be deriving from a law enforcement organization and will report having located youngster porn or other unlawful data on the tool.

    Ransom:Win32/Gandcrab.D!MTB popup alert might falsely declare to be acquiring from a regulation enforcement establishment as well as will certainly report having situated kid porn or various other prohibited data on the tool. The alert will similarly contain a demand for the user to pay the ransom money.

Technical details

File Info:

crc32: 0252C64B
md5: 754e248361de33e0bddaee25715b0bde
name: 754E248361DE33E0BDDAEE25715B0BDE.mlw
sha1: f6898be923fd38c5ccf919e385b1224ff3e46769
sha256: 4e0ff59f70f0684e14350016a83207381487bf7d4625fe0e3234c44645db3ca6
sha512: 25ce42589e7952694626a3bdb09ea190de5ef69800d7c9fb694683091c4b53c924924867bcc8de4337585f84c7445d6458b464c0abe62a2345ae762715df0f77
ssdeep: 3072:kJ21X7jXgLvn1z8qYADOElWNHPJCyyg+ULeVA+hgHYmYy8titxprg:XR7ggqY8AvGgL3IErYy8tiP5g
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Ransom:Win32/Gandcrab.D!MTB also known as:

GridinSoftTrojan.Ransom.Gen
Elasticmalicious (high confidence)
MicroWorld-eScanTrojan.Ransom.GandCrab.Gen.2
FireEyeGeneric.mg.754e248361de33e0
CAT-QuickHealTrojan.Mauvaise.SL1
McAfeePacked-FDY!754E248361DE
CylanceUnsafe
VIPRETrojan.Win32.Generic!BT
SangforWin.Packed.Gandcrab-6552923-4
K7AntiVirusTrojan ( 0054a0a81 )
BitDefenderTrojan.Ransom.GandCrab.Gen.2
K7GWTrojan ( 0054a0a81 )
CrowdStrikewin/malicious_confidence_100% (W)
CyrenW32/S-97c363a1!Eldorado
SymantecPacked.Generic.525
APEXMalicious
AvastFileRepMalware
ClamAVWin.Packed.Gandcrab-6552923-4
KasperskyHEUR:Trojan.Win32.Zenpak.gen
NANO-AntivirusTrojan.Win32.Encoder.fcmfar
ViRobotTrojan.Win32.GandCrab.Gen.A
AegisLabTrojan.Win32.GandCrypt.j!c
Ad-AwareTrojan.Ransom.GandCrab.Gen.2
SophosMal/Generic-R + Mal/Agent-AUL
ComodoTrojWare.Win32.Magniber.FGH@7nyazg
F-SecureHeuristic.HEUR/AGEN.1103299
DrWebTrojan.Encoder.24384
ZillyaTrojan.Coins.Win32.82
TrendMicroRansom_GANDCRAB.SMD4
McAfee-GW-EditionBehavesLike.Win32.Generic.dc
EmsisoftTrojan.Ransom.GandCrab.Gen.2 (B)
SentinelOneStatic AI – Malicious PE
GDataTrojan.Ransom.GandCrab.Gen.2
AviraHEUR/AGEN.1103299
MAXmalware (ai score=99)
Antiy-AVLTrojan[Ransom]/Win32.GandCrypt
ArcabitTrojan.Ransom.GandCrab.Gen.2
SUPERAntiSpywareTrojan.Agent/Gen-Malagent
ZoneAlarmHEUR:Trojan.Win32.Zenpak.gen
MicrosoftRansom:Win32/Gandcrab.D!MTB
CynetMalicious (score: 100)
AhnLab-V3Win-Trojan/Gandcrab.Exp
Acronissuspicious
BitDefenderThetaGen:NN.ZexaF.34590.oyX@aKnfCMp
ALYacTrojan.Ransom.GandCrab.Gen.2
TACHYONRansom/W32.GandCrab
VBA32BScope.Trojan.Encoder
MalwarebytesTrojan.MalPack
PandaTrj/Genetic.gen
ESET-NOD32a variant of Win32/Kryptik.GGZI
TrendMicro-HouseCallRansom_GANDCRAB.SMD4
RisingTrojan.Kryptik!1.B28B (RDMK:cmRtazrgaGejQsqkxb5fIXKAurtM)
YandexTrojan.GenAsa!ulF/D2nJuQY
IkarusTrojan.Crypt
eGambitUnsafe.AI_Score_97%
FortinetW32/Kryptik.GXCI!tr
AVGFileRepMalware
Cybereasonmalicious.361de3
Paloaltogeneric.ml
Qihoo-360Win32/Trojan.Ransom.ac3

How to remove Ransom:Win32/Gandcrab.D!MTB ransomware?

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

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 Ransom:Win32/Gandcrab.D!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:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Ransom:Win32/Gandcrab.D!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/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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