Ransom:Win32/VHDLocker.A

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

What is Ransom:Win32/VHDLocker.A infection?

In this post you will certainly locate concerning the interpretation of Ransom:Win32/VHDLocker.A and also its unfavorable impact on your computer. Such ransomware are a kind of malware that is elaborated by online fraudulences to demand paying the ransom money by a sufferer.

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In the majority of the situations, Ransom:Win32/VHDLocker.A virus will advise its victims to launch funds move for the objective of neutralizing the amendments that the Trojan infection has actually presented to the victim’s gadget.

Ransom:Win32/VHDLocker.A Summary

These alterations can be as follows:

  • 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.
  • Uses Windows utilities for basic functionality;
  • Exhibits possible ransomware file modification behavior;
  • Writes a potential ransom message to disk;
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Likely virus infection of existing system binary;
  • Ciphering the papers found on the sufferer’s hard disk — so the victim can no longer make use of the data;
  • Preventing normal 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.

Ransom:Win32/VHDLocker.A

The most regular channels through which Ransom:Win32/VHDLocker.A Ransomware Trojans are injected are:

  • By means of phishing e-mails;
  • As a consequence of customer ending up on a source that organizes a harmful software;

As soon as the Trojan is successfully infused, it will either cipher the information on the victim’s computer or protect against the device from functioning in an appropriate manner – while likewise positioning a ransom note that states the demand for the sufferers to effect the repayment for the objective of decrypting the files or restoring the documents system back to the preliminary condition. In a lot of instances, the ransom money note will come up when the customer reboots the PC after the system has already been harmed.

Ransom:Win32/VHDLocker.A circulation channels.

In different edges of the world, Ransom:Win32/VHDLocker.A expands by leaps and bounds. Nevertheless, the ransom notes and tricks of obtaining the ransom amount might differ depending on specific local (regional) settings. The ransom money notes and techniques of obtaining the ransom quantity may differ depending on specific neighborhood (regional) setups.

Ransomware injection

As an example:

    Faulty alerts concerning unlicensed software application.

    In specific areas, the Trojans frequently wrongfully report having actually detected some unlicensed applications allowed on the sufferer’s device. The sharp after that demands the customer to pay the ransom money.

    Faulty statements concerning unlawful content.

    In countries where software piracy is much less prominent, this method is not as reliable for the cyber fraudulences. Additionally, the Ransom:Win32/VHDLocker.A popup alert may wrongly claim to be deriving from a police institution as well as will report having located child porn or other prohibited data on the device.

    Ransom:Win32/VHDLocker.A popup alert may falsely claim to be deriving from a regulation enforcement organization as well as will certainly report having located youngster porn or other illegal information on the gadget. The alert will in a similar way have a demand for the user to pay the ransom money.

Technical details

File Info:

crc32: DA5EE22C
md5: 6d12547772b57a6da2b25d2188451983
name: upload_file
sha1: 53af601afa0b69c771255a61559365cb34f72b8b
sha256: 52888b5f881f4941ae7a8f4d84de27fc502413861f96ee58ee560c09c11880d6
sha512: 859e3e0d91c3f9fb157e438c7c6f091fe861e4bb1a2ad17f130a7f846fbde09959d63c605c6c1ac3697d4ad07ccd3ca457e103382867db7b41b40429e74c4d32
ssdeep: 1536:3paH9Fki/XlnXDlRGUBDzIEVBhsaYlqaNRC40b9DmGnOB5HMqqU+pdVZn02:3pKXRzlRGODdW7NcXDs5HMqqDp3Z
type: PE32 executable (DLL) (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Ransom:Win32/VHDLocker.A also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetectVM.malware2
DrWebTrojan.MulDrop11.51833
MicroWorld-eScanGen:Variant.Ursu.803580
FireEyeGeneric.mg.6d12547772b57a6d
CAT-QuickHealTrojanRansom.Agent
McAfeeRDN/Ransom
CylanceUnsafe
VIPRETrojan.Win32.Generic!BT
AegisLabTrojan.Win32.Agent.j!c
SangforMalware
K7AntiVirusRiskware ( 0040eff71 )
BitDefenderGen:Variant.Ursu.803580
K7GWRiskware ( 0040eff71 )
TrendMicroRansom.Win32.VHDLOCKER.A
BitDefenderThetaGen:NN.ZedlaF.34138.gu4@aqUA4lbi
CyrenW32/Ransom.ORVG-1894
SymantecDownloader
TrendMicro-HouseCallRansom.Win32.VHDLOCKER.A
AvastWin32:Malware-gen
GDataGen:Variant.Ursu.803580
KasperskyTrojan-Ransom.Win32.Agent.awoe
AlibabaRansom:Win32/VHDLocker.fb085e36
NANO-AntivirusTrojan.Win32.Filecoder.hhpocs
RisingRansom.VHDLocker!1.C88A (CLOUD)
Ad-AwareGen:Variant.Ursu.803580
SophosMal/Generic-S
F-SecureTrojan.TR/Ransom.puqhd
ZillyaTrojan.Filecoder.Win32.13531
EmsisoftGen:Variant.Ursu.803580 (B)
AviraTR/Ransom.puqhd
Antiy-AVLTrojan[Ransom]/Win32.Agent
ArcabitTrojan.Generic.D2005588
ZoneAlarmTrojan-Ransom.Win32.Agent.awoe
MicrosoftRansom:Win32/VHDLocker.A
CynetMalicious (score: 85)
AhnLab-V3Malware/Win32.Ransom.C4057769
VBA32TrojanRansom.Agent
ALYacTrojan.Ransom.Filecoder
PandaTrj/GdSda.A
APEXMalicious
ESET-NOD32Win32/Filecoder.OBF
TencentWin32.Trojan.Filecoder.Wozq
YandexTrojan.Filecoder!kCFThDUqg7I
MAXmalware (ai score=100)
FortinetW32/Agent.AWOE!tr.ransom
AVGWin32:Malware-gen
Paloaltogeneric.ml
Qihoo-360Win32/Trojan.Ransom.441

How to remove Ransom:Win32/VHDLocker.A 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

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 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/VHDLocker.A 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:Win32/VHDLocker.A 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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