Trojan.Ransom.UO

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

What is Trojan.Ransom.UO infection?

In this post you will discover about the interpretation of Trojan.Ransom.UO as well as its unfavorable effect on your computer system. Such ransomware are a type of malware that is specified by on-line fraudulences to require paying the ransom by a target.

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Most of the instances, Trojan.Ransom.UO virus will certainly advise its sufferers to start funds move for the purpose of neutralizing the changes that the Trojan infection has introduced to the target’s tool.

Trojan.Ransom.UO Summary

These adjustments 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;
  • 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.
  • Unconventionial language used in binary resources: Finnish;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • The executable is compressed using UPX;
  • Likely installs a bootkit via raw harddisk modifications;
  • Deletes its original binary from disk;
  • Attempts to restart the guest VM;
  • 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.
  • Creates a copy of itself;
  • Ciphering the files found on the sufferer’s disk drive — so the victim can no longer make use of the information;
  • Preventing regular access 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.

Trojan.Ransom.UO

The most regular networks whereby Trojan.Ransom.UO Ransomware Trojans are injected are:

  • By means of phishing emails;
  • As a repercussion of individual ending up on a resource that organizes a harmful software program;

As soon as the Trojan is effectively injected, it will either cipher the information on the target’s computer or prevent the device from working in a correct manner – while likewise putting a ransom money note that points out the need for the sufferers to effect the payment for the objective of decrypting the documents or restoring the data system back to the preliminary problem. In the majority of instances, the ransom money note will certainly show up when the client reboots the PC after the system has actually already been harmed.

Trojan.Ransom.UO distribution networks.

In numerous corners of the globe, Trojan.Ransom.UO grows by leaps and also bounds. Nevertheless, the ransom money notes and methods of extorting the ransom money amount might differ depending on particular regional (regional) settings. The ransom money notes as well as tricks of extorting the ransom amount might differ depending on particular local (regional) setups.

Ransomware injection

As an example:

    Faulty notifies regarding unlicensed software application.

    In specific locations, the Trojans commonly wrongfully report having discovered some unlicensed applications made it possible for on the sufferer’s gadget. The sharp after that demands the customer to pay the ransom money.

    Faulty statements about illegal web content.

    In countries where software program piracy is less popular, this approach is not as reliable for the cyber scams. Additionally, the Trojan.Ransom.UO popup alert might incorrectly assert to be originating from a police institution as well as will report having situated kid pornography or other unlawful data on the device.

    Trojan.Ransom.UO popup alert might incorrectly claim to be acquiring from a regulation enforcement institution and will certainly report having located child porn or various other prohibited data on the gadget. The alert will likewise include a demand for the customer to pay the ransom money.

Technical details

File Info:

crc32: 78408F46
md5: fb73ed8301d346b8466b0cf38322c6e7
name: FB73ED8301D346B8466B0CF38322C6E7.mlw
sha1: a0df429350589ab6d99ab3903e4d61ce0b9287f1
sha256: 4e9acf497e4fcecacb05ca1f47d0948ec6e6ec0bb1240fbabb7a92bfbbc37000
sha512: 9bd73d0c69fbb5a2ec84a5fa46abf3fa1bd421f89a58b4f3aa530083cdaff975d31d265a3f22bec1119485ce9db4129e0e61d3e01a75212236ba8826a58e732b
ssdeep: 768:34L/lbfVHfmmvQANgt6thFnq86nv9zha:oblbxmmvQANlthFJe9a
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

ProductName: Sixty
FileDescription: Rods
FileVersion: 10, 1, 9
OriginalFilename: Dewy.exe
CompanyName: Ofe
Translation: 0x0409 0x04b0

Trojan.Ransom.UO also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.Ransom.UO
FireEye Generic.mg.fb73ed8301d346b8
ALYac Trojan.Ransom.UO
Cylance Unsafe
VIPRE Trojan.Win32.Zbocheman.fb (v)
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 0026ead81 )
BitDefender Trojan.Ransom.UO
K7GW Trojan ( 0026ead81 )
Cybereason malicious.301d34
Cyren W32/Yakes.K.gen!Eldorado
Symantec ML.Attribute.HighConfidence
APEX Malicious
Avast Win32:Malware-gen
Kaspersky HEUR:Trojan.Win32.Generic
NANO-Antivirus Trojan.Win32.MBRlock.bfxefh
Rising Ransom.Genasom!8.293 (CLOUD)
Ad-Aware Trojan.Ransom.UO
Emsisoft Trojan.Ransom.UO (B)
Comodo Malware@#39s43sdub5upn
F-Secure Trojan.TR/Crypt.ZPACK.Gen6
DrWeb Trojan.MBRlock.6
Zillya Trojan.MBRlock.Win32.265
TrendMicro TROJ_SPNR.35CA13
McAfee-GW-Edition BackDoor-FJW!B26751B24A79
Sophos ML/PE-A + Mal/Zbot-LB
Ikarus Trojan.Ransom
Webroot W32.Bancodor.N
Avira TR/Crypt.ZPACK.Gen6
eGambit Unsafe.AI_Score_99%
MAX malware (ai score=81)
Antiy-AVL Trojan[Ransom]/Win32.Mbro
Microsoft Ransom:Win32/Genasom
Arcabit Trojan.Ransom.UO
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Trojan.Ransom.UO
Cynet Malicious (score: 100)
McAfee Artemis!FB73ED8301D3
VBA32 Hoax.MBro
Malwarebytes Malware.Heuristic.1003
Panda Bck/Qbot.AO
ESET-NOD32 Win32/MBRlock.D
TrendMicro-HouseCall TROJ_SPNR.35CA13
Tencent Win32.Trojan.Mbro.Efap
Yandex Trojan.Mbro!5xeqtrB3cxQ
SentinelOne Static AI – Malicious PE
Fortinet W32/Yakes.B!tr
BitDefenderTheta Gen:NN.ZexaF.34590.bmKfa4URj5gG
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 HEUR/Malware.QVM11.Gen

How to remove Trojan.Ransom.UO 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

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 Trojan.Ransom.UO 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 Trojan.Ransom.UO 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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