NSIS/Injector.QS

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

What is NSIS/Injector.QS infection?

In this post you will locate about the interpretation of NSIS/Injector.QS and its unfavorable effect on your computer. Such ransomware are a form of malware that is elaborated by online frauds to demand paying the ransom by a target.

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In the majority of the instances, NSIS/Injector.QS infection will instruct its victims to initiate funds move for the function of reducing the effects of the modifications that the Trojan infection has actually introduced to the target’s tool.

NSIS/Injector.QS Summary

These alterations 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.
  • Compression (or decompression);
  • 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.

  • 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 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.
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers located on the target’s hard disk — so the target can no more utilize the information;
  • Preventing normal access to the sufferer’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

NSIS/Injector.QS

One of the most regular channels whereby NSIS/Injector.QS are infused are:

  • By means of phishing e-mails;
  • As a repercussion of customer winding up on a source that organizes a harmful software application;

As soon as the Trojan is efficiently injected, it will certainly either cipher the data on the victim’s PC or prevent the tool from operating in a proper manner – while also putting a ransom note that states the need for the victims to impact the repayment for the purpose of decrypting the documents or restoring the data system back to the initial problem. In many circumstances, the ransom money note will certainly show up when the customer reboots the COMPUTER after the system has currently been harmed.

NSIS/Injector.QS circulation channels.

In various corners of the globe, NSIS/Injector.QS grows by leaps as well as bounds. Nevertheless, the ransom money notes and methods of extorting the ransom quantity may differ relying on specific regional (local) setups. The ransom notes and also methods of obtaining the ransom quantity might differ depending on specific local (regional) setups.

Ransomware injection

For instance:

    Faulty notifies about unlicensed software application.

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

    Faulty statements concerning prohibited content.

    In countries where software application piracy is much less preferred, this technique is not as effective for the cyber scams. Additionally, the NSIS/Injector.QS popup alert may falsely declare to be originating from a police institution and will certainly report having located child porn or various other prohibited information on the tool.

    NSIS/Injector.QS popup alert might falsely declare to be deriving from a law enforcement institution and will certainly report having situated youngster pornography or other unlawful data on the tool. The alert will similarly include a need for the individual to pay the ransom money.

Technical details

File Info:

crc32: 06609D38
md5: 6792b08cc0613c0fd977f5478f716268
name: 6792B08CC0613C0FD977F5478F716268.mlw
sha1: d436ac1b0034abe8e0e72da190693b5ab08233c0
sha256: 8bfd568ec063950ceaae4faec9cc0cadeabac93e722edd6465f093e35858db54
sha512: 55bf3bd3e59fda8bdf5ed7c6630c5a646e6ce50b8797b8c424452a23e98f10bad8f2c3d4f8fd55a1d31f8c3ea09dd2b3254d479acf4aa23ec6ae769c1f1cf6db
ssdeep: 24576:rdPZencjrEeNdaPE0uT2bT04Li+UKEY9JJtO1F91:wKrOvucLizKLJfOf91
type: PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive

Version Info:

0: [No Data]

NSIS/Injector.QS also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 005027a81 )
DrWebTrojan.DownLoader23.45561
CynetMalicious (score: 90)
ALYacTrojan.GenericKD.4371197
CylanceUnsafe
SangforTrojan.Win32.Shade.usrg
CrowdStrikewin/malicious_confidence_90% (W)
AlibabaRansom:Win32/Shade.edc490a5
K7GWTrojan ( 005027a81 )
Cybereasonmalicious.cc0613
ESET-NOD32NSIS/Injector.QS
APEXMalicious
AvastWin32:Malware-gen
ClamAVWin.Ransomware.Shade-5818898-0
KasperskyTrojan-Ransom.Win32.Shade.llq
BitDefenderTrojan.GenericKD.4371197
NANO-AntivirusTrojan.Nsis.AD.ekugfl
MicroWorld-eScanTrojan.GenericKD.4371197
TencentWin32.Trojan.Shade.Wpti
Ad-AwareTrojan.GenericKD.4371197
ComodoMalware@#pzn7fgp47xah
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom_CRYPSHED.F117AH
McAfee-GW-EditionBehavesLike.Win32.ICLoader.dc
FireEyeGeneric.mg.6792b08cc0613c0f
EmsisoftTrojan.GenericKD.4371197 (B)
SentinelOneStatic AI – Suspicious PE
AviraTR/Dropper.Gen
MicrosoftRansom:Win32/Troldesh.A
ArcabitTrojan.Generic.D42B2FD
AegisLabTrojan.Win32.Shade.j!c
GDataTrojan.GenericKD.4371197
TACHYONRansom/W32.Shade.931203
AhnLab-V3Trojan/Win32.Shade.C1751525
McAfeeArtemis!6792B08CC061
MAXmalware (ai score=100)
VBA32TrojanRansom.Shade
PandaTrj/CI.A
TrendMicro-HouseCallRansom_CRYPSHED.F117AH
FortinetW32/Injector.QW!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml
Qihoo-360Win32/Ransom.Shade.HoMASOoA

How to remove NSIS/Injector.QS 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 NSIS/Injector.QS 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 NSIS/Injector.QS 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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