Trojan.Gandcrypt

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

What is Trojan.Gandcrypt infection?

In this short article you will discover about the interpretation of Trojan.Gandcrypt and its adverse effect on your computer system. Such ransomware are a form of malware that is elaborated by on-line frauds to demand paying the ransom money by a sufferer.

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In the majority of the instances, Trojan.Gandcrypt virus will certainly instruct its sufferers to launch funds move for the objective of neutralizing the modifications that the Trojan infection has actually presented to the victim’s device.

Trojan.Gandcrypt Summary

These adjustments 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.
  • 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.
  • 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 hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents located on the victim’s hard drive — so the victim can no more utilize the information;
  • Preventing normal access to the victim’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
z.whorecord.xyzTrojan.Ransom.Crysis
a.tomx.xyzTrojan.Ransom.Crysis

Trojan.Gandcrypt

The most regular networks whereby Trojan.Gandcrypt Trojans are injected are:

  • By means of phishing emails;
  • As a consequence of customer ending up on a resource that holds a destructive software application;

As quickly as the Trojan is efficiently injected, it will either cipher the data on the target’s computer or prevent the gadget from operating in a correct way – while also putting a ransom note that points out the need for the targets to effect the repayment for the objective of decrypting the files or bring back the documents system back to the first condition. In most circumstances, the ransom note will certainly come up when the client reboots the PC after the system has actually currently been damaged.

Trojan.Gandcrypt circulation networks.

In different corners of the globe, Trojan.Gandcrypt expands by jumps and bounds. Nevertheless, the ransom notes as well as techniques of extorting the ransom quantity might vary relying on certain regional (regional) settings. The ransom money notes as well as techniques of extorting the ransom quantity might vary depending on certain neighborhood (regional) setups.

Ransomware injection

As an example:

    Faulty notifies regarding unlicensed software application.

    In specific locations, the Trojans typically wrongfully report having identified some unlicensed applications made it possible for on the target’s tool. The sharp then demands the user to pay the ransom money.

    Faulty statements about unlawful content.

    In nations where software application piracy is much less popular, this method is not as reliable for the cyber scams. Conversely, the Trojan.Gandcrypt popup alert might incorrectly assert to be stemming from a law enforcement organization and will report having located kid porn or other unlawful data on the tool.

    Trojan.Gandcrypt popup alert might wrongly claim to be acquiring from a law enforcement organization as well as will report having located kid porn or various other illegal information on the device. The alert will similarly have a requirement for the individual to pay the ransom.

Technical details

File Info:

crc32: 5AE746EB
md5: 792f3bdd88a09c14d83d1729e1daaaa6
name: dmx777amx.exe
sha1: 3db459771b7b5d89271f2c40946f015a749edcf8
sha256: 15261902cbeea085d10a5b0a37b11ac259346bf62145095bc9b4427b343a0c41
sha512: d1e0f3f1c4e03c08cf62df380c6aa5be21b6d79cfb1903501aa76d7b54bf34191d4254ac0323291db7afda0c6de9032f8560908fe986f6c26439b168a429d508
ssdeep: 3072:R8nZhZ9SJV0u5wszT1AQnXD15fV29WE1DOJEARlEW:gZhSJ3vKQTt2sEeH
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0219 0x04e4

Trojan.Gandcrypt also known as:

GridinSoftTrojan.Ransom.Gen
MicroWorld-eScanTrojan.GenericKD.32769339
FireEyeGeneric.mg.792f3bdd88a09c14
CAT-QuickHealTrojan.Gandcrypt
McAfeeRDN/Generic.grp
MalwarebytesTrojan.MalPack.GS
VIPRETrojan.Win32.Generic!BT
AegisLabTrojan.Multi.Generic.4!c
SangforMalware
K7AntiVirusTrojan ( 003e58dd1 )
BitDefenderTrojan.GenericKD.32769339
K7GWTrojan ( 003e58dd1 )
CrowdStrikewin/malicious_confidence_90% (W)
BitDefenderThetaGen:NN.ZexaF.32519.mu0@aONcazo
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of Win32/Kryptik.GYYN
TrendMicro-HouseCallTROJ_GEN.R002C0DL219
ClamAVWin.Packed.Tofsee-7413745-0
GDataTrojan.GenericKD.32769339
KasperskyTrojan.Win32.DelShad.brt
AlibabaTrojan:Win32/DelShad.e83ed3d6
NANO-AntivirusTrojan.Win32.Encoder.gjxyem
ViRobotTrojan.Win32.Z.Agent.207360.XT
RisingTrojan.Kryptik!1.BFC4 (CLASSIC)
Endgamemalicious (high confidence)
SophosMal/Generic-S
F-SecureTrojan.TR/AD.Crysis.gua
DrWebTrojan.Encoder.30234
Invinceaheuristic
McAfee-GW-EditionBehavesLike.Win32.PdfCrypt.dh
SentinelOneDFI – Malicious PE
Trapminesuspicious.low.ml.score
APEXMalicious
CyrenW32/Trojan.XMPM-7037
JiangminTrojanDownloader.Bandit.ayc
WebrootW32.Trojan.Gen
AviraTR/AD.Crysis.gua
MicrosoftTrojan:Win32/GandCrypt.GE!MTB
ArcabitTrojan.Generic.D1F4053B
AhnLab-V3Malware/Win32.RL_Generic.R301847
ZoneAlarmTrojan.Win32.DelShad.brt
Acronissuspicious
ALYacTrojan.Ransom.Crysis
MAXmalware (ai score=99)
VBA32Malware-Cryptor.Limpopo
CylanceUnsafe
PandaTrj/GdSda.A
IkarusTrojan.Win32.Crypt
MaxSecureTrojan.Malware.300983.susgen
FortinetMalicious_Behavior.SB
Ad-AwareTrojan.GenericKD.32769339
AVGFileRepMalware
Cybereasonmalicious.71b7b5
Paloaltogeneric.ml
Qihoo-360HEUR/QVM10.2.8CC5.Malware.Gen

How to remove Trojan.Gandcrypt 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 install-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.Gandcrypt 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 Trojan.Gandcrypt 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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