Ransom:Win32/Gandcrab.J!MTB

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

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

In this post you will find concerning the interpretation of Ransom:Win32/Gandcrab.J!MTB and also its negative 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 victim.

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Most of the situations, Ransom:Win32/Gandcrab.J!MTB infection will certainly advise its victims to launch funds transfer for the function of neutralizing the amendments that the Trojan infection has presented to the target’s gadget.

Ransom:Win32/Gandcrab.J!MTB 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.
  • 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;
  • Unconventionial language used in binary resources: Danish;
  • 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
  • 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 located on the target’s disk drive — so the target can no more utilize the data;
  • Preventing regular accessibility to the victim’s workstation;
Similar behavior
Related domains
z.whorecord.xyzW32/Ransom.KH.gen!Eldorado
a.tomx.xyzW32/Ransom.KH.gen!Eldorado
ipv4bot.whatismyipaddress.comW32/Ransom.KH.gen!Eldorado
ns1.wowservers.ruW32/Ransom.KH.gen!Eldorado
carder.bitW32/Ransom.KH.gen!Eldorado
ns2.wowservers.ruW32/Ransom.KH.gen!Eldorado
ransomware.bitW32/Ransom.KH.gen!Eldorado

Ransom:Win32/Gandcrab.J!MTB

One of the most regular channels whereby Ransom:Win32/Gandcrab.J!MTB Ransomware Trojans are injected are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As an effect of user ending up on a source that organizes a harmful software;

As quickly as the Trojan is effectively injected, it will certainly either cipher the information on the victim’s computer or stop the tool from working in a correct way – while also placing a ransom note that discusses the requirement for the sufferers to effect the settlement for the purpose of decrypting the documents or bring back the file system back to the first condition. In most instances, the ransom note will show up when the customer restarts the PC after the system has currently been harmed.

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

In various edges of the world, Ransom:Win32/Gandcrab.J!MTB expands by jumps and bounds. Nonetheless, the ransom money notes and also methods of obtaining the ransom money amount might vary depending upon particular regional (regional) setups. The ransom notes as well as tricks of obtaining the ransom money quantity may vary depending on certain regional (local) settings.

Ransomware injection

For example:

    Faulty alerts about unlicensed software program.

    In specific locations, the Trojans frequently wrongfully report having identified some unlicensed applications enabled on the target’s device. The alert after that requires the user to pay the ransom.

    Faulty declarations concerning unlawful content.

    In nations where software piracy is much less prominent, this technique is not as efficient for the cyber fraudulences. Additionally, the Ransom:Win32/Gandcrab.J!MTB popup alert might falsely assert to be stemming from a police establishment and will report having situated kid pornography or various other illegal data on the tool.

    Ransom:Win32/Gandcrab.J!MTB popup alert might falsely declare to be acquiring from a law enforcement establishment and also will report having situated kid porn or other unlawful data on the tool. The alert will in a similar way consist of a demand for the individual to pay the ransom.

Technical details

File Info:

crc32: 59423C56
md5: e116f145e1256da4707b910e657440cb
name: E116F145E1256DA4707B910E657440CB.mlw
sha1: 5f6f7a0312fe86498a53dc4fde9591cf34610ff4
sha256: 4fc71403a7eeb3b9c6a8f3c0a10d33cc241bde46a33a6e4d477b5ef36d315180
sha512: 24f989d8c1d35083ca850d7e96e99f3e0cae8d724a4adee5130dec7da1bdd80de8e45caeee5abb38257f9b242aa9a07658dff5bfe8b82aa6735455a923ef3470
ssdeep: 6144:yg2EwGJeWiFHr38dtFuB8/tYCEcLcW6V7zO:ZzJeWi9r3LmwcLchzO
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x3245 0xa910

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

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
Elasticmalicious (high confidence)
MicroWorld-eScanTrojan.GenericKDZ.45008
FireEyeGeneric.mg.e116f145e1256da4
CAT-QuickHealTrojan.Chapak.ZZ5
ALYacTrojan.GenericKDZ.45008
CylanceUnsafe
VIPRETrojan.Win32.Generic!BT
SangforWin.Packed.Gandcrab-6552923-4
K7AntiVirusTrojan ( 00535f5f1 )
BitDefenderTrojan.GenericKDZ.45008
K7GWTrojan ( 00535f5f1 )
Cybereasonmalicious.5e1256
BitDefenderThetaGen:NN.ZexaF.34590.quX@a4@3fMnO
CyrenW32/Ransom.KH.gen!Eldorado
SymantecPacked.Generic.525
ESET-NOD32a variant of Win32/Kryptik.GIFD
APEXMalicious
AvastWin32:RansomX-gen [Ransom]
ClamAVWin.Packed.Gandcrab-6552923-4
KasperskyHEUR:Trojan.Win32.Generic
NANO-AntivirusTrojan.Win32.Ransom.fentzx
ViRobotTrojan.Win32.GandCrab.Gen.A
AegisLabTrojan.Win32.Generic.4!c
RisingDropper.Generic!8.35E (CLOUD)
Ad-AwareTrojan.GenericKDZ.45008
SophosMal/Generic-S + Mal/Agent-AUL
ComodoTrojWare.Win32.Vigorf.DS@7q649q
F-SecureTrojan.TR/Dropper.Gen
DrWebTrojan.PWS.Stealer.23949
ZillyaTrojan.Coins.Win32.402
TrendMicroRansom.Win32.GANDCRAB.SMLA.hp
McAfee-GW-EditionBehavesLike.Win32.Emotet.dc
EmsisoftTrojan.GenericKDZ.45008 (B)
IkarusTrojan-Ransom.GandCrab
JiangminTrojanDownloader.Upatre.ajjg
eGambitUnsafe.AI_Score_99%
AviraTR/Dropper.Gen
MAXmalware (ai score=96)
Antiy-AVLTrojan[Ransom]/Win32.GandCrypt
MicrosoftRansom:Win32/Gandcrab.J!MTB
ArcabitTrojan.Generic.DAFD0
AhnLab-V3Win-Trojan/Gandcrab.Exp
ZoneAlarmHEUR:Trojan.Win32.Generic
GDataWin32.Trojan-Ransom.GandCrab.U
CynetMalicious (score: 100)
Acronissuspicious
McAfeeTrojan-FPOH!E116F145E125
VBA32BScope.Trojan.Chapak
MalwarebytesTrojan.MalPack.GS
PandaTrj/CI.A
TrendMicro-HouseCallRansom.Win32.GANDCRAB.SMLA.hp
TencentMalware.Win32.Gencirc.10c949b0
YandexTrojan.GenAsa!Z+WLMIswXjk
SentinelOneStatic AI – Malicious PE
MaxSecureRansomeware.CRAB.gen
FortinetW32/Gandcrab.BCE0!tr
AVGWin32:RansomX-gen [Ransom]
Paloaltogeneric.ml
CrowdStrikewin/malicious_confidence_100% (D)
Qihoo-360Win32/Trojan.Ransom.ec9

How to remove Ransom:Win32/Gandcrab.J!MTB virus?

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 Ransom:Win32/Gandcrab.J!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.J!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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