MSIL/Injector.DUV

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

What is MSIL/Injector.DUV infection?

In this article you will locate about the definition of MSIL/Injector.DUV as well as its adverse influence on your computer system. Such ransomware are a kind of malware that is specified by online fraudulences to require paying the ransom money by a sufferer.

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In the majority of the situations, MSIL/Injector.DUV virus will certainly advise its sufferers to start funds move for the purpose of reducing the effects of the changes that the Trojan infection has introduced to the sufferer’s gadget.

MSIL/Injector.DUV Summary

These modifications can be as follows:

  • 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.
  • 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.
  • Uses Windows utilities for basic functionality;
  • Sniffs keystrokes;
  • Exhibits behavior characteristic of Alphacrypt/Teslacrypt ransomware;
  • 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;
  • Ciphering the records located on the sufferer’s hard disk — so the target can no more use the data;
  • Preventing regular accessibility to the target’s workstation;

MSIL/Injector.DUV

The most typical networks whereby MSIL/Injector.DUV Trojans are infused are:

  • By ways of phishing emails;
  • As a consequence of individual ending up on a source that organizes a harmful software program;

As quickly as the Trojan is successfully injected, it will either cipher the information on the victim’s PC or protect against the device from functioning in a correct manner – while also putting a ransom note that mentions the requirement for the sufferers to effect the repayment for the purpose of decrypting the records or restoring the documents system back to the initial problem. In many instances, the ransom money note will certainly turn up when the client reboots the COMPUTER after the system has currently been damaged.

MSIL/Injector.DUV distribution networks.

In numerous corners of the globe, MSIL/Injector.DUV expands by leaps and also bounds. Nevertheless, the ransom money notes and tricks of extorting the ransom money amount may differ relying on specific regional (regional) setups. The ransom notes as well as tricks of obtaining the ransom money quantity may vary depending on certain regional (local) settings.

Ransomware injection

As an example:

    Faulty notifies regarding unlicensed software application.

    In particular areas, the Trojans commonly wrongfully report having identified some unlicensed applications enabled on the target’s device. The alert after that demands the individual to pay the ransom money.

    Faulty declarations regarding illegal material.

    In countries where software piracy is less popular, this technique is not as effective for the cyber fraudulences. Additionally, the MSIL/Injector.DUV popup alert may incorrectly declare to be stemming from a law enforcement establishment and also will report having located kid pornography or other illegal data on the device.

    MSIL/Injector.DUV popup alert may falsely declare to be deriving from a law enforcement institution as well as will report having situated child porn or various other illegal information on the device. The alert will likewise have a requirement for the user to pay the ransom.

Technical details

File Info:

crc32: 2E9EF4A4
md5: ca4f3a622bae0557f7f79fa231c1c8bf
name: CA4F3A622BAE0557F7F79FA231C1C8BF.mlw
sha1: 24f3299d57af5e1630382e1a81a2e899236289ff
sha256: 2972a5be796f94ed1110a8fef40b74b2f04ad0d046a21e7657433669c9c80a14
sha512: 8e0f0750958deaa3b401019293c489f40848768f38deeb52f04d0170b19f7e35a0093eac18e4622def783669d533e3f763959d2d1205a73f422913acb58f780a
ssdeep: 24576:dpPC9s2SVgEnaEUpnCpdrTDgASl3rCf9M9LS:dZ6sGcaEwCPTDgwm+
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: xa9 Microsoft Corporation. All rights reserved.
Assembly Version: 6.1.9.0
InternalName: task.exe
FileVersion: 6.1.9
CompanyName: Microsoft Corporation
LegalTrademarks: xa9 Microsoft Corporation. All rights reserved.
Comments: Windows Task Manager
ProductName: Microsoftxae Windowsxae Operating System
ProductVersion: 6.1.9
FileDescription: Microsoftxae Windowsxae Operating System
OriginalFilename: task.exe

MSIL/Injector.DUV also known as:

GridinSoftTrojan.Ransom.Gen
K7AntiVirusTrojan ( 0049b30e1 )
Elasticmalicious (high confidence)
DrWebBackDoor.Siggen.49176
CynetMalicious (score: 100)
CylanceUnsafe
ZillyaTrojan.Injector.Win32.769835
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (W)
AlibabaRansom:Win32/Blocker.0197d0fd
K7GWTrojan ( 0049b30e1 )
Cybereasonmalicious.d57af5
CyrenW32/Trojan.FWW.gen!Eldorado
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of MSIL/Injector.DUV
APEXMalicious
AvastWin32:Malware-gen
KasperskyTrojan-Ransom.Win32.Blocker.kavp
NANO-AntivirusTrojan.Win32.Blocker.epjkak
TencentWin32.Trojan.Blocker.Syrv
SophosMal/Generic-S
ComodoMalware@#37f5zczw8iic3
BitDefenderThetaGen:NN.ZemsilF.34608.9m0@aOIOovo
VIPRETrojan.Win32.Generic!BT
McAfee-GW-EditionBehavesLike.Win32.Generic.dc
FireEyeGeneric.mg.ca4f3a622bae0557
SentinelOneStatic AI – Malicious PE
AviraHEUR/AGEN.1105852
eGambitUnsafe.AI_Score_100%
MicrosoftBackdoor:MSIL/Bladabindi
AegisLabTrojan.Win32.Generic.4!c
GDataMSIL.Backdoor.Bladabindi.TN17WF
AhnLab-V3Trojan/Win32.ZBot.R112387
McAfeeArtemis!CA4F3A622BAE
RisingRansom.Blocker!8.12A (CLOUD)
IkarusTrojan.MSIL.Injector
FortinetMSIL/Generic.AP.18947D8!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml
Qihoo-360Win32/Ransom.Blocker.HgIASOcA

How to remove MSIL/Injector.DUV virus?

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 MSIL/Injector.DUV 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 MSIL/Injector.DUV 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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