Worm:Win32/Ludbaruma.A

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.

Related domains:

z.whorecord.xyz Trojan-Ransom.Win32.Blocker.kpuo
a.tomx.xyz Trojan-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:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetectVM.malware1
Elastic malicious (high confidence)
DrWeb Trojan.DownLoader7.3730
MicroWorld-eScan Trojan.VB.OJW
FireEye Generic.mg.a7432542511ac77c
CAT-QuickHeal Worm.Ludbaruma.A3
ALYac Trojan.VB.OJW
Cylance Unsafe
VIPRE Worm.Win32.Ludbaruma.a (v)
K7AntiVirus Trojan ( 0040f6141 )
BitDefender Trojan.VB.OJW
K7GW P2PWorm ( 0050fa4b1 )
Cybereason malicious.2511ac
BitDefenderTheta AI:Packer.D9B5E1A91D
Cyren W32/S-2ee348b2!Eldorado
Symantec Bloodhound.W32.VBWORM
APEX Malicious
Avast Win32:Emotet-AI [Trj]
Cynet Malicious (score: 100)
Kaspersky Trojan-Ransom.Win32.Blocker.kpuo
NANO-Antivirus Trojan.Win32.Regrun.dxtouo
ViRobot Trojan.Win32.Ludbaruma.Gen.A
Ad-Aware Trojan.VB.OJW
Sophos ML/PE-A + W32/Mato-N
Comodo TrojWare.Win32.Injector.FZZA@57zyc0
F-Secure Trojan.TR/Agent.gdnw
Baidu Win32.Worm.VB.k
Zillya Trojan.RegrunGen.Win32.1
TrendMicro TSPY_LUDBARUMA_BK083EDB.TOMC
McAfee-GW-Edition BehavesLike.Win32.Rontokbro.dm
Emsisoft Trojan.VB.OJW (B)
SentinelOne Static AI – Malicious PE – Worm
Jiangmin Trojan.Blocker.tav
Avira TR/Agent.gdnw
MAX malware (ai score=81)
Antiy-AVL Trojan/Win32.Unknown
Microsoft Worm:Win32/Ludbaruma.A
Arcabit Trojan.VB.OJW
SUPERAntiSpyware Worm.Ludbaruma/Variant
ZoneAlarm Trojan-Ransom.Win32.Blocker.kpuo
GData Win32.Worm.Ludbaruma.A
AhnLab-V3 Backdoor/Win32.IRCBot.R1456
Acronis suspicious
McAfee W32/Rontokbro.gen@MM
TACHYON Trojan/W32.VB-Ludbaruma.Zen.B
VBA32 TScope.Trojan.VB
Malwarebytes Generic.Trojan.Malicious.DDS
Panda Trj/Genetic.gen
Zoner Trojan.Win32.70598
ESET-NOD32 Win32/VB.ORD
TrendMicro-HouseCall TSPY_LUDBARUMA_BK083EDB.TOMC
Rising Trojan.VB!1.BDC8 (CLASSIC)
Yandex Trojan.GenAsa!3Dzo+yWZn14
Ikarus Trojan.AgentMB.VB
Fortinet W32/Regrun.PKE!tr
AVG Win32:Emotet-AI [Trj]
Paloalto generic.ml
CrowdStrike win/malicious_confidence_100% (D)
Qihoo-360 Win32/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.

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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/products/

About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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