Trojan.Ursu

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

What is Trojan.Ursu infection?

In this post you will discover about the definition of Trojan.Ursu and also its adverse impact 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 target.

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In the majority of the cases, Trojan.Ursu ransomware will certainly instruct its targets to initiate funds transfer for the objective of neutralizing the modifications that the Trojan infection has actually presented to the target’s device.

Trojan.Ursu 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.
  • Attempts to connect to a dead IP:Port (2 unique times);
  • 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.

  • Performs some HTTP requests;
  • Unconventionial language used in binary resources: Russian;
  • Uses Windows utilities for basic functionality;
  • 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.
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers situated on the victim’s disk drive — so the victim can no more use the data;
  • 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.
Similar behavior
Related domains
z.whorecord.xyzTrojan-Ransom.Win32.Crypmod.zfq
a.tomx.xyzTrojan-Ransom.Win32.Crypmod.zfq
www.patchlicense.comTrojan-Ransom.Win32.Crypmod.zfq
www.bing.comTrojan-Ransom.Win32.Crypmod.zfq

Trojan.Ursu

The most regular channels through which Trojan.Ursu are injected are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As a consequence of user ending up on a resource that hosts a harmful software program;

As soon as the Trojan is successfully injected, it will certainly either cipher the data on the target’s PC or protect against the gadget from operating in an appropriate manner – while also putting a ransom note that states the demand for the targets to impact the payment for the purpose of decrypting the documents or restoring the file system back to the first problem. In many circumstances, the ransom note will certainly show up when the client restarts the PC after the system has already been damaged.

Trojan.Ursu distribution channels.

In numerous edges of the world, Trojan.Ursu grows by leaps and bounds. However, the ransom money notes and tricks of extorting the ransom amount might vary depending upon particular neighborhood (local) settings. The ransom notes as well as techniques of extorting the ransom amount may vary depending on certain local (regional) setups.

Ransomware injection

For example:

    Faulty informs concerning unlicensed software.

    In certain areas, the Trojans usually wrongfully report having actually identified some unlicensed applications allowed on the victim’s device. The alert then demands the customer to pay the ransom money.

    Faulty declarations about illegal material.

    In nations where software application piracy is much less preferred, this approach is not as effective for the cyber scams. Conversely, the Trojan.Ursu popup alert might incorrectly claim to be deriving from a law enforcement establishment and also will certainly report having located youngster pornography or various other unlawful information on the tool.

    Trojan.Ursu popup alert might incorrectly declare to be obtaining from a legislation enforcement establishment and also will certainly report having located child porn or other illegal data on the gadget. The alert will similarly have a need for the customer to pay the ransom.

Technical details

File Info:

crc32: 6B05F4C4
md5: 2df7ddcd269e971db65ae203760c1f23
name: 2DF7DDCD269E971DB65AE203760C1F23.mlw
sha1: 1a19b8a62432ebfb05b821f68c7e9b7d25a447b3
sha256: a1c00e201d7bf1a424922b3a7d15f3b0e5866ed45262a32a4793c4980d7b0a3e
sha512: 26029099ca409609c9afcd81447de7549a4dc21debe3630751846d15371bef13882930aa5b001b7245829c6a3010870a573e78fb44024e9338cb88b5a1abfcb2
ssdeep: 6144:/ZABbWqsE/Ao+mv8Qv0LVmwq4FU0fNoy6UxXgCgxx87VUXlMH5vFE4Fbu:BANwRo+mv8QD4+0V16UxCxx8RUCdlFbu
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Patchlicense.com
FileDescription: FontExpert 2018 Activation 1.00 Installation
FileVersion: 1.00
Comments:
CompanyName: Patchlicense.com
Translation: 0x0409 0x04e4

Trojan.Ursu also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware2
CAT-QuickHealTrojan.Ursu
ALYacTrojan.GenericKD.32228398
CrowdStrikewin/malicious_confidence_80% (W)
BitDefenderTrojan.GenericKD.32228398
K7GWRiskware ( 0040eff71 )
K7AntiVirusRiskware ( 0040eff71 )
APEXMalicious
MicroWorld-eScanTrojan.GenericKD.32228398
SophosGeneric ML PUA (PUA)
McAfee-GW-EditionBehavesLike.Win32.BadFile.dc
EmsisoftTrojan.GenericKD.32228398 (B)
SentinelOneStatic AI – Suspicious PE
WebrootW32.Trojan.Gen
eGambitUnsafe.AI_Score_99%
ArcabitTrojan.Generic.D1EBC42E
AegisLabTrojan.Win32.Generic.4!c
MicrosoftProgram:Win32/Wacapew.C!ml
McAfeeArtemis!2DF7DDCD269E
MAXmalware (ai score=99)
RisingTrojan.Zpevdo!8.F912 (CLOUD)
MaxSecureTrojan-Ransom.Win32.Crypmod.zfq

How to remove Trojan.Ursu 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 Trojan.Ursu 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 Trojan.Ursu 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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