UDS:Trojan-Ransom.Win32.Stop

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

What is UDS:Trojan-Ransom.Win32.Stop infection?

In this article you will certainly locate regarding the interpretation of UDS:Trojan-Ransom.Win32.Stop as well as its adverse effect on your computer. Such ransomware are a kind of malware that is specified by on the internet scams to require paying the ransom money by a victim.

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Most of the instances, UDS:Trojan-Ransom.Win32.Stop virus will instruct its sufferers to initiate funds transfer for the objective of reducing the effects of the modifications that the Trojan infection has actually introduced to the victim’s device.

UDS:Trojan-Ransom.Win32.Stop Summary

These modifications 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.
  • Possible date expiration check, exits too soon after checking local time;
  • A process created a hidden window;
  • Unconventionial language used in binary resources: Gujarati;
  • Uses Windows utilities for basic functionality;
  • 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 copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents situated on the target’s hard disk — so the sufferer can no more use the information;
  • Preventing normal access 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.

UDS:Trojan-Ransom.Win32.Stop

One of the most regular channels through which UDS:Trojan-Ransom.Win32.Stop Ransomware are injected are:

  • By methods of phishing emails;
  • As a consequence of customer winding up on a source that holds a destructive software program;

As quickly as the Trojan is effectively infused, it will certainly either cipher the data on the sufferer’s PC or stop the tool from working in an appropriate fashion – while also positioning a ransom note that mentions the requirement for the sufferers to effect the settlement for the purpose of decrypting the documents or restoring the documents system back to the initial problem. In most instances, the ransom money note will certainly show up when the client reboots the COMPUTER after the system has actually already been harmed.

UDS:Trojan-Ransom.Win32.Stop distribution channels.

In different edges of the globe, UDS:Trojan-Ransom.Win32.Stop expands by jumps as well as bounds. However, the ransom notes and tricks of extorting the ransom quantity might vary relying on certain local (local) settings. The ransom notes as well as tricks of extorting the ransom money amount might vary depending on certain regional (local) setups.

Ransomware injection

As an example:

    Faulty signals about unlicensed software application.

    In certain areas, the Trojans typically wrongfully report having actually spotted some unlicensed applications enabled on the victim’s device. The alert then demands the user to pay the ransom money.

    Faulty declarations concerning unlawful content.

    In countries where software piracy is much less prominent, this approach is not as efficient for the cyber frauds. Alternatively, the UDS:Trojan-Ransom.Win32.Stop popup alert may incorrectly declare to be stemming from a police institution and will certainly report having located youngster porn or other prohibited information on the device.

    UDS:Trojan-Ransom.Win32.Stop popup alert may wrongly claim to be obtaining from a regulation enforcement institution as well as will report having situated child pornography or other unlawful data on the gadget. The alert will similarly consist of a demand for the customer to pay the ransom money.

Technical details

File Info:

crc32: 02A7C819
md5: fc36c8cac6af9dedc3300171935adc87
name: FC36C8CAC6AF9DEDC3300171935ADC87.mlw
sha1: dbc14e710bcd30bd59aaafc3a45ebd905d9c01d8
sha256: 70132089c8502c52255a9d73ef1a092afaaf2f8f5a97b064685297c890d0ff00
sha512: 28cc0b527fa7d9961329c10c7096f6f5b62d59fa0cdd1337003fb455eea94c2b8723d043475130269591d37ddfb84943a10cdcae007219218edca4250ffdfc3e
ssdeep: 3072:01jozOMV/1SoHiRmwvwZvPNIhBN4myOqSi/u003MW/Xi0HSglwMg4QUIzXsTRV:0lCOMV9emwoBPNITNLFimMIbN4XsTRV
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

FileVersus: 1.0.55.28
ProductVersus: 1.0.55.28
Translations: 0x0185 0x01c6

UDS:Trojan-Ransom.Win32.Stop also known as:

GridinSoft Trojan.Ransom.Gen
Elastic malicious (high confidence)
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
Symantec ML.Attribute.HighConfidence
APEX Malicious
Avast Win32:BotX-gen [Trj]
Kaspersky UDS:Trojan-Ransom.Win32.Stop.gen
Sophos ML/PE-A + Mal/GandCrypt-B
BitDefenderTheta Gen:NN.ZexaF.34690.quW@amo80JdG
McAfee-GW-Edition BehavesLike.Win32.PWSZbot.dm
FireEye Generic.mg.fc36c8cac6af9ded
SentinelOne Static AI – Malicious PE
eGambit Unsafe.AI_Score_90%
Microsoft Trojan:Win32/Wacatac.B!ml
ZoneAlarm UDS:DangerousObject.Multi.Generic
McAfee Artemis!FC36C8CAC6AF
VBA32 BScope.Backdoor.Convagent
Malwarebytes Trojan.MalPack.GS
MaxSecure Trojan.Malware.300983.susgen
AVG Win32:BotX-gen [Trj]

How to remove UDS:Trojan-Ransom.Win32.Stop ransomware?

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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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 UDS:Trojan-Ransom.Win32.Stop 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 UDS:Trojan-Ransom.Win32.Stop 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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