Ransom:Win32/GandCrab.AF!MTB

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

What is Ransom:Win32/GandCrab.AF!MTB infection?

In this post you will discover concerning the meaning of Ransom:Win32/GandCrab.AF!MTB and its negative impact on your computer. Such ransomware are a type of malware that is specified by online fraudulences to require paying the ransom by a target.

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Most of the cases, Ransom:Win32/GandCrab.AF!MTB ransomware will certainly instruct its targets to start funds move for the objective of reducing the effects of the amendments that the Trojan infection has presented to the target’s device.

Ransom:Win32/GandCrab.AF!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.
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic;
  • Performs some HTTP requests;
  • 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!
  • Steals private information from local Internet browsers;
  • Collects information about installed applications;
  • 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;
  • Harvests credentials from local FTP client softwares;
  • Harvests information related to installed instant messenger clients;
  • Harvests information related to installed mail clients;
  • Collects information to fingerprint the system. There are behavioral human characteristics that can be used to digitally identify a person to grant access to systems, devices, or data. Unlike passwords and verification codes, fingerprints are fundamental parts of user’s identities. Among the threats blocked on biometric data processing and storage systems is spyware, the malware used in phishing attacks (mostly spyware downloaders and droppers), ransomware, and Banking Trojans as posing the greatest danger.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers found on the victim’s hard disk — so the sufferer can no more utilize the data;
  • Preventing regular access to the target’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.xyz TrojWare.Win32.Ransom.GandCrab.ASA@8bmkty
a.tomx.xyz TrojWare.Win32.Ransom.GandCrab.ASA@8bmkty
bestbtcchange.com TrojWare.Win32.Ransom.GandCrab.ASA@8bmkty
ip-api.com TrojWare.Win32.Ransom.GandCrab.ASA@8bmkty

Ransom:Win32/GandCrab.AF!MTB

One of the most typical networks whereby Ransom:Win32/GandCrab.AF!MTB are infused are:

  • By means of phishing e-mails;
  • As an effect of user winding up on a source that hosts a harmful software program;

As soon as the Trojan is efficiently injected, it will either cipher the information on the sufferer’s PC or protect against the device from working in a proper fashion – while also putting a ransom money note that states the need for the targets to effect the repayment for the objective of decrypting the files or restoring the data system back to the first problem. In a lot of circumstances, the ransom note will certainly show up when the client restarts the PC after the system has actually currently been harmed.

Ransom:Win32/GandCrab.AF!MTB distribution channels.

In various edges of the globe, Ransom:Win32/GandCrab.AF!MTB grows by jumps and also bounds. Nonetheless, the ransom notes as well as methods of extorting the ransom amount may vary depending upon particular neighborhood (local) setups. The ransom money notes and also methods of obtaining the ransom quantity might vary depending on particular local (local) setups.

Ransomware injection

For instance:

    Faulty signals about unlicensed software application.

    In certain locations, the Trojans commonly wrongfully report having detected some unlicensed applications made it possible for on the target’s gadget. The sharp after that demands the user to pay the ransom money.

    Faulty statements regarding prohibited content.

    In countries where software program piracy is less preferred, this method is not as efficient for the cyber scams. Additionally, the Ransom:Win32/GandCrab.AF!MTB popup alert may wrongly declare to be originating from a law enforcement organization and also will certainly report having located youngster pornography or various other unlawful information on the gadget.

    Ransom:Win32/GandCrab.AF!MTB popup alert might incorrectly assert to be deriving from a regulation enforcement organization and also will certainly report having located child porn or various other prohibited data on the tool. The alert will in a similar way contain a need for the individual to pay the ransom money.

Technical details

File Info:

crc32: 48282D74
md5: f5ded83a2b11fb59d63c26e1f35e3132
name: F5DED83A2B11FB59D63C26E1F35E3132.mlw
sha1: e0f73bac9277c7f9a2f6092060c591f0b5e92f6e
sha256: c33faca0d9371bb702a34a123867f8dad35f0a6742c5558f92e524f55ce18804
sha512: db8b7e2f418052d37fe763836810937a619daeff72b7db41a7c799d2527d1909039bd4711f7e79bb15cf8bf7651c8d7dce0590c648f5850d7db1cbfe7b2c3551
ssdeep: 12288:TZXsYYk7cHY2piL/vkdPvnSSGpX2z/5ySeyy+1yLkpfFXs3t:TxwHG3klSSB/A70ykpfF89
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Ransom:Win32/GandCrab.AF!MTB also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
DrWeb Trojan.Siggen8.29188
Cynet Malicious (score: 100)
ALYac Trojan.Brsecmon.1
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Cybereason malicious.a2b11f
Symantec Trojan.Gen.MBT
ESET-NOD32 a variant of Win32/Kryptik.GTKF
APEX Malicious
Avast Win32:CrypterX-gen [Trj]
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.Brsecmon.1
SUPERAntiSpyware Hack.Tool/Gen-BitCoinMiner
MicroWorld-eScan Trojan.Brsecmon.1
Ad-Aware Trojan.Brsecmon.1
Sophos Mal/Generic-R + Mal/GandCrab-G
Comodo TrojWare.Win32.Ransom.GandCrab.ASA@8bmkty
BitDefenderTheta Gen:NN.ZexaF.34722.LyW@a0ddz3c
VIPRE Trojan.Win32.Generic!BT
TrendMicro Trojan.Win32.SODINOK.SM.hp
McAfee-GW-Edition Sodinokibi!F5DED83A2B11
FireEye Generic.mg.f5ded83a2b11fb59
Emsisoft Trojan.Brsecmon.1 (B)
SentinelOne Static AI – Suspicious PE
Avira HEUR/AGEN.1136564
eGambit Unsafe.AI_Score_99%
Microsoft Ransom:Win32/GandCrab.AF!MTB
GData Trojan.Brsecmon.1
AhnLab-V3 Malware/Win32.Generic.R273844
Acronis suspicious
McAfee Sodinokibi!F5DED83A2B11
MAX malware (ai score=86)
Malwarebytes Trojan.MalPack.GS.Generic
Panda Trj/Genetic.gen
TrendMicro-HouseCall Trojan.Win32.SODINOK.SM.hp
Rising [email protected] (RDML:4gIduBX9Qgsar1aV0CSDHg)
Yandex Trojan.Agent!PkYKCBirDDM
Ikarus Trojan-Banker.IcedID
MaxSecure Ransomeware.GandCrypt.Gen
Fortinet W32/Kryptik.HKKC!tr
AVG Win32:CrypterX-gen [Trj]

How to remove Ransom:Win32/GandCrab.AF!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.AF!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.AF!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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