NSIS/Injector.AJA

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

What is NSIS/Injector.AJA infection?

In this post you will find regarding the definition of NSIS/Injector.AJA and also its negative effect on your computer. Such ransomware are a form of malware that is specified by on-line scams to demand paying the ransom by a sufferer.

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Most of the situations, NSIS/Injector.AJA virus will certainly advise its victims to initiate funds move for the objective of neutralizing the modifications that the Trojan infection has actually presented to the sufferer’s tool.

NSIS/Injector.AJA Summary

These adjustments can be as complies with:

  • 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.

  • A process created a hidden window;
  • 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.
  • 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;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files situated on the sufferer’s disk drive — so the victim can no longer use the data;
  • Preventing routine 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.

NSIS/Injector.AJA

One of the most typical channels whereby NSIS/Injector.AJA Ransomware are injected are:

  • By means of phishing emails;
  • As a repercussion of individual winding up on a source that hosts a destructive software program;

As soon as the Trojan is efficiently injected, it will either cipher the information on the sufferer’s PC or stop the gadget from functioning in a proper way – while also positioning a ransom money note that discusses the requirement for the victims to effect the repayment for the purpose of decrypting the papers or recovering the file system back to the initial condition. In many circumstances, the ransom note will come up when the client restarts the COMPUTER after the system has actually already been harmed.

NSIS/Injector.AJA circulation channels.

In different edges of the globe, NSIS/Injector.AJA expands by leaps and also bounds. Nonetheless, the ransom money notes and tricks of extorting the ransom amount may differ depending on certain regional (local) setups. The ransom money notes and methods of extorting the ransom quantity might vary depending on specific regional (regional) settings.

Ransomware injection

For instance:

    Faulty notifies about unlicensed software.

    In certain areas, the Trojans often wrongfully report having spotted some unlicensed applications made it possible for on the victim’s tool. The alert after that demands the customer to pay the ransom.

    Faulty statements about prohibited material.

    In countries where software application piracy is less prominent, this technique is not as reliable for the cyber fraudulences. Additionally, the NSIS/Injector.AJA popup alert might incorrectly claim to be deriving from a police establishment and also will report having located kid pornography or various other prohibited data on the device.

    NSIS/Injector.AJA popup alert might falsely assert to be obtaining from a regulation enforcement institution as well as will certainly report having situated youngster pornography or other unlawful information on the gadget. The alert will similarly have a demand for the individual to pay the ransom.

Technical details

File Info:

crc32: 2DEBFB15
md5: 2876db1b03b557351668cd577bf09c52
name: 2876DB1B03B557351668CD577BF09C52.mlw
sha1: 39dea8fbb9eeb2d5e6de5af3eda87f33a857dc12
sha256: dbeae60f2dbf75d9340775ee02002e0400bc646f9d35dc41bdef73be4da82ac5
sha512: 398ca451179d3800a654108bc3c9556dc5bee649fdcd2ec73133ca822c46a02c676f65f7d2cd8e4625121558bf4d68b851d5c8e723c527ed89fe0207ed490e39
ssdeep: 1536:r04f1SMHjZ0k/tB1g//I0DuoxbxAHscc4bO7BpdcLZMJ6W8Sc4KGwcOHnRZR3ZWJ:Zf1BDZ0kVB67Duw9AMcZb6BpgZMISc4L
type: PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive

Version Info:

LegalCopyright: Copyright xa9 2020 Betternet Technologies Inc., All Rights Reserved
InternalName: Betternet-6.4.0.exe
FileDescription: Betternet for Windows
FileVersion: 6.4.0.555
CompanyName: Betternet Technologies Inc.
Translation: 0x0409 0x04b0

NSIS/Injector.AJA also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
Elasticmalicious (high confidence)
CynetMalicious (score: 85)
CylanceUnsafe
CrowdStrikewin/malicious_confidence_60% (D)
Cybereasonmalicious.bb9eeb
ESET-NOD32NSIS/Injector.AJA
APEXMalicious
KasperskyHEUR:Trojan.Win32.Generic
F-SecureHeuristic.HEUR/AGEN.1139415
McAfee-GW-EditionBehavesLike.Win32.Vopak.nc
FireEyeGeneric.mg.2876db1b03b55735
WebrootW32.Trojan.Gen
AviraHEUR/AGEN.1139415
MicrosoftTrojan:Win32/CryptInject!MSR
ZoneAlarmHEUR:Trojan.Win32.Generic
AhnLab-V3Malware/Gen.RL_Reputation.R365201
McAfeeNSIS/ObfusRansom.f
RisingTrojan.Injector/NSIS!1.BFBB (CLASSIC)
IkarusTrojan.NSIS.Agent
FortinetW32/Injector.AIZ!tr

How to remove NSIS/Injector.AJA 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 NSIS/Injector.AJA 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 NSIS/Injector.AJA 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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