Worm:Win32/Ludbaruma.A

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

What is Worm:Win32/Ludbaruma.A infection?

In this short article you will certainly discover regarding the definition of Worm:Win32/Ludbaruma.A and also its negative effect on your computer system. Such ransomware are a type of malware that is specified by online scams to require paying the ransom money by a sufferer.

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In the majority of the situations, Worm:Win32/Ludbaruma.A virus will advise its sufferers to start funds move for the function of reducing the effects of the changes that the Trojan infection has presented to the sufferer’s gadget.

Worm:Win32/Ludbaruma.A Summary

These alterations can be as adheres to:

  • 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.
  • Checks for the presence of known windows from debuggers and forensic tools;
  • 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.
  • 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.
  • Attempts to identify installed AV products by installation directory;
  • Detects VirtualBox through the presence of a registry key;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files situated on the sufferer’s hard disk drive — so the target can no more utilize the information;
  • Preventing routine accessibility 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.Win32.Blocker.kpuo
a.tomx.xyzTrojan-Ransom.Win32.Blocker.kpuo

Worm:Win32/Ludbaruma.A

One of the most regular networks through which Worm:Win32/Ludbaruma.A are injected are:

  • By ways of phishing e-mails;
  • As an effect of user winding up on a resource that hosts a destructive software application;

As soon as the Trojan is efficiently infused, it will certainly either cipher the data on the sufferer’s computer or prevent the device from working in a correct fashion – while additionally putting a ransom note that points out the requirement for the targets to effect the repayment for the function of decrypting the papers or restoring the data system back to the preliminary problem. In a lot of instances, the ransom note will show up when the client restarts the PC after the system has actually currently been damaged.

Worm:Win32/Ludbaruma.A circulation channels.

In different edges of the globe, Worm:Win32/Ludbaruma.A expands by jumps and also bounds. Nonetheless, the ransom notes and techniques of obtaining the ransom amount might differ depending on certain neighborhood (regional) setups. The ransom notes and also techniques of obtaining the ransom money amount might vary depending on certain neighborhood (local) setups.

Ransomware injection

As an example:

    Faulty notifies concerning unlicensed software application.

    In specific areas, the Trojans frequently wrongfully report having actually spotted some unlicensed applications made it possible for on the sufferer’s tool. The sharp after that demands the individual to pay the ransom.

    Faulty statements regarding prohibited web content.

    In countries where software program piracy is much less preferred, this method is not as effective for the cyber frauds. Alternatively, the Worm:Win32/Ludbaruma.A popup alert might wrongly assert to be stemming from a law enforcement organization as well as will certainly report having situated child porn or various other prohibited data on the gadget.

    Worm:Win32/Ludbaruma.A popup alert might incorrectly declare to be obtaining from a law enforcement institution and also will certainly report having situated youngster porn or other prohibited information on the tool. The alert will likewise contain a requirement for the individual to pay the ransom.

Technical details

File Info:

crc32: A6E0192A
md5: a7432542511ac77c49e26206fe6dbaa0
name: A7432542511AC77C49E26206FE6DBAA0.mlw
sha1: f7767ecbbd06e5b69eefd394fc6f5324e9e87817
sha256: f9090b3d064792ba4a957fc300668265f3cbba281d22ecc111311cea784f43a7
sha512: 9c518b9ba4f0cc3813b6c8ad98940569f378b5293e2494efa63ba0ac346e3519541b86f9b648497a6bd0f8275a0a209be9b5dd09fca1dfd988fe6f116f29698e
ssdeep: 3072:Ax/5F/E7tEf0X+p+tYlpJH7iXQNgggHlxDZiYLK5Wpht4xZVX42:AxhF4ce+wWJH7igNgjdFKsCRf
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0409 0x04b0
InternalName: DATA
FileVersion: 0.00.0020
CompanyName: Oncom
ProductName: xk
ProductVersion: 0.00.0020
OriginalFilename: DATA.exe

Worm:Win32/Ludbaruma.A also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetectVM.malware1
Elasticmalicious (high confidence)
DrWebTrojan.DownLoader7.3730
MicroWorld-eScanTrojan.VB.OJW
FireEyeGeneric.mg.a7432542511ac77c
CAT-QuickHealWorm.Ludbaruma.A3
ALYacTrojan.VB.OJW
CylanceUnsafe
VIPREWorm.Win32.Ludbaruma.a (v)
K7AntiVirusTrojan ( 0040f6141 )
BitDefenderTrojan.VB.OJW
K7GWP2PWorm ( 0050fa4b1 )
Cybereasonmalicious.2511ac
BitDefenderThetaAI:Packer.D9B5E1A91D
CyrenW32/S-2ee348b2!Eldorado
SymantecBloodhound.W32.VBWORM
APEXMalicious
AvastWin32:Emotet-AI [Trj]
CynetMalicious (score: 100)
KasperskyTrojan-Ransom.Win32.Blocker.kpuo
NANO-AntivirusTrojan.Win32.Regrun.dxtouo
ViRobotTrojan.Win32.Ludbaruma.Gen.A
Ad-AwareTrojan.VB.OJW
SophosML/PE-A + W32/Mato-N
ComodoTrojWare.Win32.Injector.FZZA@57zyc0
F-SecureTrojan.TR/Agent.gdnw
BaiduWin32.Worm.VB.k
ZillyaTrojan.RegrunGen.Win32.1
TrendMicroTSPY_LUDBARUMA_BK083EDB.TOMC
McAfee-GW-EditionBehavesLike.Win32.Rontokbro.dm
EmsisoftTrojan.VB.OJW (B)
SentinelOneStatic AI – Malicious PE – Worm
JiangminTrojan.Blocker.tav
AviraTR/Agent.gdnw
MAXmalware (ai score=81)
Antiy-AVLTrojan/Win32.Unknown
MicrosoftWorm:Win32/Ludbaruma.A
ArcabitTrojan.VB.OJW
SUPERAntiSpywareWorm.Ludbaruma/Variant
ZoneAlarmTrojan-Ransom.Win32.Blocker.kpuo
GDataWin32.Worm.Ludbaruma.A
AhnLab-V3Backdoor/Win32.IRCBot.R1456
Acronissuspicious
McAfeeW32/Rontokbro.gen@MM
TACHYONTrojan/W32.VB-Ludbaruma.Zen.B
VBA32TScope.Trojan.VB
MalwarebytesGeneric.Trojan.Malicious.DDS
PandaTrj/Genetic.gen
ZonerTrojan.Win32.70598
ESET-NOD32Win32/VB.ORD
TrendMicro-HouseCallTSPY_LUDBARUMA_BK083EDB.TOMC
RisingTrojan.VB!1.BDC8 (CLASSIC)
YandexTrojan.GenAsa!3Dzo+yWZn14
IkarusTrojan.AgentMB.VB
FortinetW32/Regrun.PKE!tr
AVGWin32:Emotet-AI [Trj]
Paloaltogeneric.ml
CrowdStrikewin/malicious_confidence_100% (D)
Qihoo-360Win32/Trojan.Ransom.624

How to remove Worm:Win32/Ludbaruma.A 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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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 Worm:Win32/Ludbaruma.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 Worm:Win32/Ludbaruma.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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