UDS:Trojan-Ransom.NSIS.Onion

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

What is UDS:Trojan-Ransom.NSIS.Onion infection?

In this post you will certainly find about the meaning of UDS:Trojan-Ransom.NSIS.Onion and also its negative influence on your computer. Such ransomware are a type of malware that is elaborated by on-line scams to demand paying the ransom money by a target.

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In the majority of the instances, UDS:Trojan-Ransom.NSIS.Onion virus will certainly advise its victims to launch funds transfer for the function of neutralizing the changes that the Trojan infection has presented to the target’s tool.

UDS:Trojan-Ransom.NSIS.Onion Summary

These alterations can be as complies with:

  • 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.
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the records found on the victim’s hard disk — so the target can no more make use of the data;
  • Preventing normal access 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.

UDS:Trojan-Ransom.NSIS.Onion

The most common channels through which UDS:Trojan-Ransom.NSIS.Onion Ransomware Trojans are infused are:

  • By ways of phishing e-mails;
  • As an effect of individual ending up on a resource that holds a malicious software application;

As quickly as the Trojan is successfully infused, it will certainly either cipher the information on the victim’s PC or avoid the device from operating in a proper fashion – while additionally putting a ransom note that discusses the requirement for the victims to impact the settlement for the objective of decrypting the documents or recovering the data system back to the first condition. In the majority of instances, the ransom money note will certainly come up when the client reboots the COMPUTER after the system has currently been damaged.

UDS:Trojan-Ransom.NSIS.Onion distribution channels.

In different edges of the globe, UDS:Trojan-Ransom.NSIS.Onion expands by leaps as well as bounds. However, the ransom notes and also methods of extorting the ransom quantity might differ depending upon particular local (regional) setups. The ransom money notes as well as techniques of extorting the ransom amount might vary depending on specific neighborhood (local) setups.

Ransomware injection

For instance:

    Faulty alerts regarding unlicensed software program.

    In particular areas, the Trojans often wrongfully report having actually identified some unlicensed applications made it possible for on the victim’s device. The sharp then requires the customer to pay the ransom money.

    Faulty declarations about prohibited content.

    In countries where software piracy is less preferred, this approach is not as reliable for the cyber frauds. Additionally, the UDS:Trojan-Ransom.NSIS.Onion popup alert may wrongly declare to be originating from a law enforcement institution and will report having located youngster pornography or various other unlawful data on the tool.

    UDS:Trojan-Ransom.NSIS.Onion popup alert may incorrectly claim to be acquiring from a law enforcement organization and will certainly report having situated child pornography or other unlawful data on the tool. The alert will likewise contain a need for the user to pay the ransom.

Technical details

File Info:

crc32: 12FECB5C
md5: 61846b1fcde24f38f26887fe96b91e1a
name: 61846B1FCDE24F38F26887FE96B91E1A.mlw
sha1: f0b462a69156f64075b642e9610a173a973b0a64
sha256: 5bd444d52432a061d778e1e8df5c5caef24ac8906d9db2e969055cc90139bc4f
sha512: 4cfa0bc3d1cc9d6cd19dc208f55fbde91e976c23722884ec7f0315bcd724dad3343e4c8e05745e5ed3630941ce1889b54e4abc80753196f67bec965554762a1e
ssdeep: 6144:2e340rQFvXLNg2Qi5nQ3RMhxLp0JtkhJzK/Ge4akRplYWGQ:BAXS2NnMRAxLp0SzzqNlk11
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

UDS:Trojan-Ransom.NSIS.Onion also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
CAT-QuickHeal TrojanRansom.Onion
Cylance Unsafe
Zillya Trojan.GenericKD.Win32.28981
Symantec Trojan.Gen.2
APEX Malicious
Kaspersky UDS:Trojan-Ransom.NSIS.Onion.gen
Sophos Mal/Generic-S
Comodo Malware@#1oelphg6d6hch
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.BadFile.fc
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft PUA:Win32/Presenoker
AegisLab Trojan.NSIS.Onion.j!c
McAfee Artemis!61846B1FCDE2
MAX malware (ai score=95)
VBA32 Adware.Presenoker
Fortinet W32/Onion.AERH!tr
Paloalto generic.ml

How to remove UDS:Trojan-Ransom.NSIS.Onion 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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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.NSIS.Onion 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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Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove UDS:Trojan-Ransom.NSIS.Onion 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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