Trojan:Win32/GandCrypt.GA!MTB

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

What is Trojan:Win32/GandCrypt.GA!MTB infection?

In this post you will certainly find regarding the interpretation of Trojan:Win32/GandCrypt.GA!MTB as well as its negative influence on your computer. Such ransomware are a kind of malware that is specified by on-line fraudulences to demand paying the ransom by a victim.

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In the majority of the cases, Trojan:Win32/GandCrypt.GA!MTB infection will advise its victims to launch funds transfer for the function of neutralizing the amendments that the Trojan infection has introduced to the victim’s tool.

Trojan:Win32/GandCrypt.GA!MTB Summary

These alterations 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.
  • 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.

  • 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;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the records situated on the target’s hard drive — so the victim can no longer make use of the information;
  • Preventing regular accessibility to the victim’s workstation;

Trojan:Win32/GandCrypt.GA!MTB

The most common channels through which Trojan:Win32/GandCrypt.GA!MTB Ransomware are infused are:

  • By methods of phishing emails;
  • As a repercussion of user winding up on a resource that hosts a malicious software application;

As quickly as the Trojan is effectively infused, it will certainly either cipher the information on the sufferer’s PC or protect against the tool from operating in a correct manner – while also putting a ransom money note that states the requirement for the targets to impact the payment for the objective of decrypting the papers or bring back the documents system back to the preliminary problem. In a lot of circumstances, the ransom note will turn up when the client reboots the COMPUTER after the system has actually already been harmed.

Trojan:Win32/GandCrypt.GA!MTB circulation networks.

In numerous corners of the globe, Trojan:Win32/GandCrypt.GA!MTB expands by leaps and bounds. However, the ransom money notes and also techniques of extorting the ransom money amount may differ depending on certain regional (local) setups. The ransom money notes and also techniques of obtaining the ransom amount might vary depending on specific neighborhood (local) settings.

Ransomware injection

As an example:

    Faulty signals regarding unlicensed software application.

    In certain locations, the Trojans typically wrongfully report having actually identified some unlicensed applications enabled on the victim’s device. The alert then demands the individual to pay the ransom money.

    Faulty statements regarding illegal content.

    In countries where software program piracy is much less popular, this technique is not as efficient for the cyber scams. Conversely, the Trojan:Win32/GandCrypt.GA!MTB popup alert may wrongly assert to be deriving from a law enforcement organization and also will certainly report having situated child porn or various other illegal data on the gadget.

    Trojan:Win32/GandCrypt.GA!MTB popup alert might incorrectly declare to be acquiring from a legislation enforcement organization and also will report having located youngster pornography or various other illegal information on the gadget. The alert will in a similar way contain a requirement for the individual to pay the ransom.

Technical details

File Info:

crc32: BB24FFE2
md5: 1f804e89299cb2379c75c67ae87996fd
name: 1F804E89299CB2379C75C67AE87996FD.mlw
sha1: de126d63074ee991f5400646efdd0073d1115b97
sha256: 0c78ec6a56b844453ad88c7ee57978fee76f83765590d8acfd520529138bc703
sha512: e1ed836c76c0fe42885bb5de530e23b70fb1d29e7350567ec07e80dba98b3be9c0c6806a66fcf735a7b3b670a5b217bfa24bce8c8dad51feea67b5d5788596f4
ssdeep: 3072:ils0N+qlBcTXO9/Za/EqZzMdPun+1ptJkZqjPjG0RCx/EIM53fgLmX5KTRcM326L:ilsv4/ZMc2cvkZ0GVdwPgLk5rMmsXKsz
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Trojan:Win32/GandCrypt.GA!MTB also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 0052908c1 )
Elasticmalicious (high confidence)
DrWebTrojan.DownLoader26.27120
CynetMalicious (score: 100)
CAT-QuickHealTrojan.Chapak.ZZ6
McAfeeGenericRXEH-EE!1F804E89299C
CylanceUnsafe
ZillyaTrojan.Chapak.Win32.659
SangforWin.Packed.Gandcrab-6552923-4
CrowdStrikewin/malicious_confidence_100% (D)
AlibabaTrojan:Win32/GandCrypt.6b603499
K7GWTrojan ( 0056e9401 )
Cybereasonmalicious.9299cb
CyrenW32/S-0bdffa46!Eldorado
SymantecPacked.Generic.525
ESET-NOD32a variant of Win32/Kryptik.GEEM
APEXMalicious
AvastWin32:RansomX-gen [Ransom]
ClamAVWin.Packed.Gandcrab-6552923-4
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderTrojan.Ransom.GandCrab.Gen.2
NANO-AntivirusTrojan.Win32.Kryptik.eyuryx
ViRobotTrojan.Win32.GandCrab.Gen.A
MicroWorld-eScanTrojan.Ransom.GandCrab.Gen.2
TencentTrojan.Win32.Gandcrab.t
Ad-AwareTrojan.Ransom.GandCrab.Gen.2
SophosMal/Generic-R + Mal/Agent-AUL
ComodoTrojWare.Win32.Crypt.KP@7k7fzd
BitDefenderThetaGen:NN.ZexaF.34628.tyX@a4oDGbni
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom_GANDCRAB.SMALY-3
McAfee-GW-EditionBehavesLike.Win32.Generic.fh
FireEyeGeneric.mg.1f804e89299cb237
EmsisoftTrojan.Ransom.GandCrab.Gen.2 (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan.Chapak.an
AviraTR/Dropper.Gen
eGambitUnsafe.AI_Score_92%
MicrosoftTrojan:Win32/GandCrypt.GA!MTB
AegisLabTrojan.Win32.Androm.tpm0
GDataTrojan.Ransom.GandCrab.Gen.2
AhnLab-V3Win-Trojan/Gandcrab.Exp
Acronissuspicious
VBA32BScope.Trojan.Chapak
MAXmalware (ai score=99)
MalwarebytesRansom.GandCrab
PandaTrj/CI.A
TrendMicro-HouseCallRansom_GANDCRAB.SMALY-3
RisingTrojan.GandCrypt!8.113D7 (TFE:5:cRKzatOTQfB)
IkarusTrojan-Ransom.GandCrab
FortinetW32/Kryptik.GEEM!tr
AVGWin32:RansomX-gen [Ransom]
Paloaltogeneric.ml
Qihoo-360Win32/Ransom.GandCrab.HwoCSy8A

How to remove Trojan:Win32/GandCrypt.GA!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/GandCrypt.GA!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/GandCrypt.GA!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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