Ransom.GandCrab.303

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

What is Ransom.GandCrab.303 infection?

In this post you will certainly discover regarding the interpretation of Ransom.GandCrab.303 as well as its negative effect on your computer system. Such ransomware are a kind of malware that is elaborated by on-line fraudulences to require paying the ransom by a sufferer.

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Most of the instances, Ransom.GandCrab.303 ransomware will certainly instruct its victims to initiate funds transfer for the objective of reducing the effects of the changes that the Trojan infection has presented to the target’s tool.

Ransom.GandCrab.303 Summary

These adjustments 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.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • 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!
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
  • 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
  • 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 disk drive — so the target can no longer use the data;
  • Preventing routine accessibility to the sufferer’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.xyzGen:Variant.Ransom.GandCrab.303
a.tomx.xyzGen:Variant.Ransom.GandCrab.303
bambuko.infoGen:Variant.Ransom.GandCrab.303
pendosy.siteGen:Variant.Ransom.GandCrab.303

Ransom.GandCrab.303

The most typical networks where Ransom.GandCrab.303 Trojans are infused are:

  • By means of phishing e-mails;
  • As a repercussion of user winding up on a resource that organizes a malicious software;

As soon as the Trojan is efficiently infused, it will certainly either cipher the data on the target’s computer or avoid the tool from functioning in a proper way – while additionally positioning a ransom money note that discusses the need for the sufferers to effect the settlement for the function of decrypting the documents or bring back the file system back to the preliminary problem. In a lot of circumstances, the ransom money note will certainly show up when the customer restarts the COMPUTER after the system has actually currently been harmed.

Ransom.GandCrab.303 distribution channels.

In various corners of the globe, Ransom.GandCrab.303 grows by jumps as well as bounds. Nonetheless, the ransom notes as well as methods of obtaining the ransom money quantity may differ depending upon specific neighborhood (local) setups. The ransom notes and also techniques of extorting the ransom quantity might vary depending on specific local (local) setups.

Ransomware injection

For instance:

    Faulty alerts regarding unlicensed software application.

    In particular areas, the Trojans commonly wrongfully report having detected some unlicensed applications made it possible for on the target’s gadget. The sharp then requires the user to pay the ransom money.

    Faulty declarations concerning illegal content.

    In nations where software piracy is less preferred, this technique is not as reliable for the cyber scams. Alternatively, the Ransom.GandCrab.303 popup alert might incorrectly assert to be stemming from a police institution and also will report having located kid pornography or other illegal data on the device.

    Ransom.GandCrab.303 popup alert may wrongly claim to be deriving from a legislation enforcement organization as well as will certainly report having located kid pornography or other prohibited data on the device. The alert will likewise contain a need for the customer to pay the ransom.

Technical details

File Info:

crc32: 7EBE0292
md5: a43e493525619072a9758f47ad9677b5
name: A43E493525619072A9758F47AD9677B5.mlw
sha1: 41972aa8b7291811daecd0137ea2dd942d8e9743
sha256: 4eb2fd0b7efa5a7a01e13192c4333de56c94ef7bd810a18754745d345bf79c8c
sha512: 2665ab82895945595f7f90a0b0b65e733929bc17abd957985babeb4cedfcabd2a7f6f56957c5df88ec8b2952fac2e297c514934cde5eb90adc1412c39d605bf7
ssdeep: 6144:x73TyzSZ5B6vsLKhzWV+xWJYJJJXee6A:x7JRBKhzG+8J9A
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0789 0x04b1

Ransom.GandCrab.303 also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
Elasticmalicious (high confidence)
MicroWorld-eScanGen:Variant.Ransom.GandCrab.303
FireEyeGeneric.mg.a43e493525619072
CAT-QuickHealTrojan.Chapak.ZZ6
ALYacGen:Variant.Ransom.GandCrab.303
CylanceUnsafe
ZillyaTrojan.Kryptik.Win32.1422472
SangforTrojan.Win32.Save.a
K7AntiVirusTrojan ( 0053305e1 )
BitDefenderGen:Variant.Ransom.GandCrab.303
K7GWTrojan ( 0053305e1 )
Cybereasonmalicious.525619
CyrenW32/S-8ce49c37!Eldorado
SymantecPacked.Generic.525
APEXMalicious
AvastFileRepMalware
ClamAVWin.Packer.Crypter-6539596-1
KasperskyHEUR:Trojan.Win32.Generic
NANO-AntivirusTrojan.Win32.GenKryptik.fbtusq
Ad-AwareGen:Variant.Ransom.GandCrab.303
EmsisoftGen:Variant.Ransom.GandCrab.303 (B)
ComodoTrojWare.Win32.Chapak.GG@7ne4ou
F-SecureHeuristic.HEUR/AGEN.1103318
DrWebTrojan.PWS.Stealer.23758
VIPREBehavesLike.Win32.Malware (v)
TrendMicroRansom_GANDCRAB.SMD3
McAfee-GW-EditionBehavesLike.Win32.Generic.dc
SophosMal/Generic-R + Mal/WaledPak-D
IkarusTrojan.Win32.Krypt
JiangminTrojan.PSW.Coins.eg
WebrootW32.Trojan.Gen
AviraHEUR/AGEN.1103318
Antiy-AVLTrojan[PSW]/Win32.Coins
MicrosoftRansom:Win32/Gandcrab.SF!MTB
ArcabitTrojan.Ransom.GandCrab.303
ZoneAlarmHEUR:Trojan.Win32.Generic
GDataGen:Variant.Ransom.GandCrab.303
CynetMalicious (score: 100)
AhnLab-V3Win-Trojan/Gandcrab01.Exp
Acronissuspicious
McAfeePacked-FFG!A43E49352561
MAXmalware (ai score=96)
VBA32BScope.TrojanRansom.GandCrypt
MalwarebytesTrojan.MalPack.GS
PandaTrj/Genetic.gen
ESET-NOD32a variant of Win32/Kryptik.GGRG
TrendMicro-HouseCallRansom_GANDCRAB.SMD3
RisingTrojan.Kryptik!1.B1E3 (CLOUD)
YandexTrojan.GenAsa!+YBjRD2hwlk
SentinelOneStatic AI – Malicious PE
FortinetW32/Agent.BFJ!tr
BitDefenderThetaGen:NN.ZexaF.34590.pyW@auHLHvfi
AVGFileRepMalware
Paloaltogeneric.ml
CrowdStrikewin/malicious_confidence_100% (D)

How to remove Ransom.GandCrab.303 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.GandCrab.303 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 Ransom.GandCrab.303 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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