Trojan-Ransom.Crusis

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

What is Trojan-Ransom.Crusis infection?

In this post you will find about the definition of Trojan-Ransom.Crusis and also its unfavorable impact on your computer. Such ransomware are a type of malware that is elaborated by on-line scams to require paying the ransom by a sufferer.

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Most of the instances, Trojan-Ransom.Crusis ransomware will advise its sufferers to start funds move for the purpose of reducing the effects of the modifications that the Trojan infection has actually presented to the target’s gadget.

Trojan-Ransom.Crusis 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);
  • 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.

  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Executed a process and injected code into it, probably while unpacking;
  • Attempts to delete volume shadow copies;
  • 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
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the papers located on the sufferer’s hard drive — so the target can no longer utilize the information;
  • Preventing regular accessibility to the sufferer’s workstation;

Trojan-Ransom.Crusis

One of the most regular networks whereby Trojan-Ransom.Crusis Ransomware are infused are:

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

As soon as the Trojan is effectively infused, it will certainly either cipher the data on the target’s computer or prevent the device from working in a correct manner – while additionally positioning a ransom money note that discusses the need for the targets to impact the payment for the purpose of decrypting the records or restoring the file system back to the preliminary problem. In the majority of instances, the ransom money note will certainly turn up when the customer restarts the COMPUTER after the system has actually already been harmed.

Trojan-Ransom.Crusis distribution networks.

In numerous edges of the world, Trojan-Ransom.Crusis grows by jumps and bounds. Nevertheless, the ransom notes and techniques of extorting the ransom money quantity might vary depending upon certain local (regional) settings. The ransom notes and methods of extorting the ransom quantity might differ depending on certain local (regional) settings.

Ransomware injection

For example:

    Faulty informs about unlicensed software.

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

    Faulty declarations about unlawful web content.

    In nations where software application piracy is less prominent, this approach is not as effective for the cyber frauds. Conversely, the Trojan-Ransom.Crusis popup alert might falsely declare to be stemming from a police institution and will report having located youngster pornography or various other unlawful information on the gadget.

    Trojan-Ransom.Crusis popup alert may wrongly assert to be deriving from a regulation enforcement establishment and also will report having situated youngster porn or various other unlawful data on the device. The alert will similarly have a requirement for the user to pay the ransom.

Technical details

File Info:

crc32: A54CE286
md5: 09376657cbae4dbd81f97016387f0c87
name: 09376657CBAE4DBD81F97016387F0C87.mlw
sha1: 0d07abc460e4427f99586a33e8f8dcfbb77c719a
sha256: a00ab0518afb9a66a3a5293b5a2bcafe61263730bed940b0a3c08ff2c76a484a
sha512: 17f1d61e616a87cf18102842a996d58059b7785fc8b4997f671e59119955590b55136a038413387e17cbab8e10dff7b99b7d85e1a35f5eedea653c6b2fa2a0ad
ssdeep: 6144:Rt5Ln09zjCawPlPyxnHxF872wBmLuzmrr8iSgMrX:9E4YnRFIt+r8im
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: Copyright xa9 2017
Assembly Version: 1.0.0.0
InternalName: suppyes.exe
FileVersion: 1.0.0.0
CompanyName:
LegalTrademarks:
Comments:
ProductName: Runtime Library
ProductVersion: 1.0.0.0
FileDescription: Runtime Library
OriginalFilename: suppyes.exe

Trojan-Ransom.Crusis also known as:

GridinSoftTrojan.Ransom.Gen
K7AntiVirusTrojan ( 700000121 )
CynetMalicious (score: 100)
ALYacTrojan.GenericKD.12350540
CylanceUnsafe
ZillyaTrojan.Crusis.Win32.491
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_90% (W)
AlibabaTrojan:Win32/runner.ali1000123
K7GWTrojan ( 700000121 )
Cybereasonmalicious.7cbae4
SymantecML.Attribute.HighConfidence
ESET-NOD32Win32/Filecoder.Crysis.L
APEXMalicious
AvastWin32:Malware-gen
KasperskyHEUR:Trojan-Ransom.Win32.Generic
BitDefenderTrojan.GenericKD.12350540
NANO-AntivirusTrojan.Win32.Crusis.esonnr
MicroWorld-eScanTrojan.GenericKD.12350540
TencentWin32.Trojan.Raas.Auto
Ad-AwareTrojan.GenericKD.12350540
SophosMal/Generic-S
ComodoMalware@#2d060utxvg3aj
BitDefenderThetaGen:NN.ZemsilF.34670.zq0@aCmtpZg
VIPRETrojan.Win32.Generic!BT
McAfee-GW-EditionBehavesLike.Win32.Dropper.gh
FireEyeGeneric.mg.09376657cbae4dbd
EmsisoftTrojan.GenericKD.12350540 (B)
SentinelOneStatic AI – Malicious PE
WebrootW32.Trojan.Genkd
AviraTR/Dropper.MSIL.lbwsp
eGambitUnsafe.AI_Score_99%
MicrosoftRansom:Win32/Wadhrama.A!rsm
ArcabitTrojan.Generic.DBC744C
AegisLabTrojan.Multi.Generic.4!c
GDataTrojan.GenericKD.12350540
AhnLab-V3Trojan/Win32.Crusis.C2233915
McAfeeArtemis!09376657CBAE
MAXmalware (ai score=100)
VBA32Trojan-Ransom.Crusis
PandaTrj/GdSda.A
YandexTrojan.Crusis!KFJYVWG2OlY
IkarusTrojan.Win32.Filecoder
FortinetW32/Filecoder_Crysis.L!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml
Qihoo-360Win32/TrojanDropper.Generic.HgIASOUA

How to remove Trojan-Ransom.Crusis 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.Crusis 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-Ransom.Crusis 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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