Trojan:Win32/Ruandmel.A!bit

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

What is Trojan:Win32/Ruandmel.A!bit infection?

In this article you will discover regarding the interpretation of Trojan:Win32/Ruandmel.A!bit and its adverse effect on your computer system. Such ransomware are a kind of malware that is elaborated by on-line scams to require paying the ransom by a sufferer.

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Most of the cases, Trojan:Win32/Ruandmel.A!bit virus will certainly advise its victims to initiate funds transfer for the function of counteracting the amendments that the Trojan infection has actually presented to the target’s tool.

Trojan:Win32/Ruandmel.A!bit Summary

These modifications 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.
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • Injection with CreateRemoteThread in a remote process;
  • 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.
  • A process attempted to delay the analysis task.;
  • Code injection with CreateRemoteThread in a remote process;
  • Queries information on disks, possibly for anti-virtualization. Since VMs share the same disk space so it is expected that they won’t be getting as much space as an application running on
    native hardware will have access to.
  • Executed a process and injected code into it, probably while unpacking;
  • Tries to unhook or modify Windows functions monitored by Cuckoo;
  • 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
  • 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 situated on the sufferer’s hard disk — so the target can no more use the information;
  • Preventing normal accessibility 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
giallaz.ruTrojan-Ransom.Win32.Blocker.meia

Trojan:Win32/Ruandmel.A!bit

One of the most typical channels where Trojan:Win32/Ruandmel.A!bit Ransomware are infused are:

  • By means of phishing e-mails;
  • As a repercussion of individual winding up on a source that organizes a harmful software;

As soon as the Trojan is efficiently injected, it will either cipher the data on the target’s computer or stop the gadget from functioning in a proper manner – while additionally positioning a ransom note that points out the requirement for the targets to impact the settlement for the purpose of decrypting the documents or restoring the file system back to the first problem. In the majority of circumstances, the ransom money note will show up when the client reboots the PC after the system has currently been damaged.

Trojan:Win32/Ruandmel.A!bit circulation networks.

In numerous corners of the world, Trojan:Win32/Ruandmel.A!bit expands by jumps and bounds. Nevertheless, the ransom notes and methods of extorting the ransom money quantity may vary relying on particular regional (local) setups. The ransom notes and techniques of obtaining the ransom money quantity might vary depending on specific neighborhood (regional) settings.

Ransomware injection

For instance:

    Faulty informs concerning unlicensed software application.

    In specific areas, the Trojans often wrongfully report having actually spotted some unlicensed applications enabled on the victim’s gadget. The sharp after that requires the customer to pay the ransom money.

    Faulty declarations about unlawful content.

    In nations where software piracy is much less popular, this method is not as effective for the cyber fraudulences. Additionally, the Trojan:Win32/Ruandmel.A!bit popup alert might wrongly assert to be originating from a police organization and also will report having situated kid porn or various other illegal information on the tool.

    Trojan:Win32/Ruandmel.A!bit popup alert may wrongly assert to be deriving from a law enforcement organization and also will report having situated child pornography or other prohibited data on the gadget. The alert will similarly contain a demand for the user to pay the ransom money.

Technical details

File Info:

crc32: E276E2ED
md5: 49b71eb3c4e9b9f5f4d58722e6bcdfa4
name: explorer_ga.exe
sha1: 519870c71a1ae3c12300284139d1e311e16ea416
sha256: 8179d0b5e1307621aa793c502a89ac3b7aba833f3b4fc815f99d0dbc85aa7c06
sha512: 8303a45003605f4c1dc7b7ca182f526eb0897c3e43d5118c448b94cc3f25e4e32b13b4722165e4c7cc72e14d0cdf9fd3612656919bc50febf4e0574454235acb
ssdeep: 1536:xJGjdJIlBFF1NH2r4VdWbJ49Hf31uIz22EEEEEEEE5:xJcUF1NHI4oJ49/FuIz22EEEEEEEE
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Trojan:Win32/Ruandmel.A!bit also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.TisroparLTAAH.Trojan
MicroWorld-eScanGen:Variant.Ulise.86244
FireEyeGeneric.mg.49b71eb3c4e9b9f5
CAT-QuickHealTrojan.RuandmelPMF.S927835
McAfeeGenericRXBG-ZU!49B71EB3C4E9
CylanceUnsafe
VIPRETrojan.Win32.Generic!BT
AegisLabTrojan.Win32.Generic.4!c
SangforMalware
K7AntiVirusTrojan ( 004d8e271 )
BitDefenderGen:Variant.Ulise.86244
K7GWTrojan ( 004d8e271 )
TrendMicroTROJ_GAUDOX.SM
BitDefenderThetaAI:Packer.662B3E881E
F-ProtW32/Gaudox.B.gen!Eldorado
SymantecML.Attribute.HighConfidence
APEXMalicious
AvastWin32:TrojanX-gen [Trj]
GDataGen:Variant.Ulise.86244
KasperskyTrojan-Ransom.Win32.Blocker.meia
AlibabaTrojan:Win32/Ruandmel.327a4fbc
NANO-AntivirusVirus.Win32.Gen.ccmw
ViRobotTrojan.Win32.U.Agent.64512.B
RisingTrojan.Ruandmel!8.61CE (TFE:2:FT2F40T8eMR)
Endgamemalicious (high confidence)
SophosMal/Generic-S
ComodoTrojWare.Win32.Ruandmel.AG@6qbq5f
F-SecureTrojan.TR/Crypt.XPACK.Gen
DrWebTrojan.Inject2.57861
ZillyaTrojan.Generic.Win32.522151
Invinceaheuristic
McAfee-GW-EditionBehavesLike.Win32.Generic.kh
Trapminemalicious.high.ml.score
EmsisoftGen:Variant.Ulise.86244 (B)
CyrenW32/Gaudox.B.gen!Eldorado
JiangminTrojanDropper.Injector.bkgu
eGambitUnsafe.AI_Score_99%
AviraTR/Crypt.XPACK.Gen
Antiy-AVLTrojan/Win32.TSGeneric
MicrosoftTrojan:Win32/Ruandmel.A!bit
SUPERAntiSpywareTrojan.Agent/Gen-Malagent
ZoneAlarmTrojan-Ransom.Win32.Blocker.meia
AhnLab-V3Trojan/Win32.Dynamer.C1318203
Acronissuspicious
VBA32Hoax.Blocker
ALYacGen:Variant.Ulise.86244
MAXmalware (ai score=100)
Ad-AwareGen:Variant.Ulise.86244
MalwarebytesTrojan.Gaudox
PandaTrj/CI.A
ESET-NOD32Win32/Agent.XRR
TrendMicro-HouseCallTROJ_GAUDOX.SM
YandexTrojan.Blocker!KJVutD4QUXc
SentinelOneDFI – Malicious PE
MaxSecureTrojan.Malware.7164915.susgen
FortinetW32/Agent.XRR!tr
WebrootTrojan.Dropper.Gen
AVGWin32:TrojanX-gen [Trj]
Paloaltogeneric.ml
Qihoo-360HEUR/QVM20.1.05B3.Malware.Gen

How to remove Trojan:Win32/Ruandmel.A!bit 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 Trojan:Win32/Ruandmel.A!bit 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 Trojan:Win32/Ruandmel.A!bit 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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