NSIS/Injector.FW

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

What is NSIS/Injector.FW infection?

In this article you will certainly discover concerning the definition of NSIS/Injector.FW and its unfavorable effect on your computer. Such ransomware are a kind of malware that is clarified by on-line fraudulences to demand paying the ransom by a victim.

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In the majority of the situations, NSIS/Injector.FW infection will advise its sufferers to initiate funds transfer for the purpose of counteracting the changes that the Trojan infection has introduced to the victim’s tool.

NSIS/Injector.FW 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);
  • At least one process apparently crashed during execution;
  • Injection with CreateRemoteThread in a remote process;
  • 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.
  • Starts servers listening on 127.0.0.1:32767, 127.0.0.1:32768;
  • Expresses interest in specific running processes;
  • 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.

  • Queries information on disks, possibly for anti-virtualization. Since VMs share the same disk space so it is expected that they won’t be getting as much space as an application running on
    native hardware will have access to.
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Executed a process and injected code into it, probably while unpacking;
  • Crashed cuckoomon during analysis. Report this error to the Github repo.;
  • A process attempted to delay the analysis task by a long amount of time.;
  • Tries to unhook or modify Windows functions monitored by Cuckoo;
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
  • 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.
  • Operates on local firewall’s policies and settings;
  • Clears Windows events or logs;
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers situated on the target’s hard drive — so the target can no longer utilize the information;
  • Preventing routine access to the sufferer’s workstation;

NSIS/Injector.FW

One of the most common networks through which NSIS/Injector.FW Ransomware Trojans are infused are:

  • By methods of phishing emails;
  • As a consequence of individual winding up on a source that holds a malicious software application;

As soon as the Trojan is effectively infused, it will certainly either cipher the data on the victim’s PC or prevent the gadget from functioning in a correct manner – while also positioning a ransom note that points out the demand for the sufferers to impact the repayment for the function of decrypting the files or recovering the documents system back to the preliminary problem. In a lot of instances, the ransom money note will show up when the client reboots the COMPUTER after the system has actually already been harmed.

NSIS/Injector.FW circulation networks.

In numerous edges of the globe, NSIS/Injector.FW grows by leaps and bounds. Nevertheless, the ransom money notes and methods of extorting the ransom amount might vary relying on certain regional (local) settings. The ransom notes and tricks of obtaining the ransom money quantity may differ depending on particular neighborhood (local) setups.

Ransomware injection

As an example:

    Faulty notifies about unlicensed software.

    In particular areas, the Trojans often wrongfully report having spotted some unlicensed applications allowed on the sufferer’s tool. The sharp after that requires the individual to pay the ransom.

    Faulty declarations concerning unlawful content.

    In nations where software piracy is much less popular, this method is not as efficient for the cyber scams. Alternatively, the NSIS/Injector.FW popup alert might falsely claim to be stemming from a law enforcement establishment and also will report having located youngster pornography or other prohibited information on the gadget.

    NSIS/Injector.FW popup alert might wrongly claim to be acquiring from a legislation enforcement institution as well as will report having situated child porn or various other illegal information on the gadget. The alert will similarly include a demand for the individual to pay the ransom money.

Technical details

File Info:

crc32: F98082B2
md5: a940dc2c55cdc2bc012e5b3330d12ebd
name: A940DC2C55CDC2BC012E5B3330D12EBD.mlw
sha1: 6e307d09135f518e94d6bd45a7cfdd8753966360
sha256: 55fe1f3523edb10ebef27ced0ea332abf8295c33028985d39859bd333dcf26a5
sha512: cf6c9344a372f29ab30a7518120dc2e74883798bdcccc2e3c8aa6bed490d2659a7cda86e6fa3e5729c467e8102a6e127c2b68e38f1381ef81d7cf9a5c9642670
ssdeep: 6144:wW+7+eMX3F0Y7oY6+edMsvLmowOV1WhjiiefwZ8vDdZi/ym1N+WLbGrQjC:wR0OY7R6+Szmov18OiIwZadiJzLyrQjC
type: PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive

Version Info:

0: [No Data]

NSIS/Injector.FW also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 004e189a1 )
Elastic malicious (high confidence)
DrWeb Trojan.PWS.Banker1.24111
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.Locky.A
ALYac Trojan.RansomKD.12632146
Sangfor Backdoor.Win32.Konus.8
CrowdStrike win/malicious_confidence_90% (D)
K7GW Trojan ( 004e189a1 )
Cybereason malicious.c55cdc
Symantec Packed.NSISPacker!g1
ESET-NOD32 NSIS/Injector.FW
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan.NSIS.Cayu.eos
BitDefender Trojan.RansomKD.12632146
NANO-Antivirus Trojan.Dos.Code.egouyv
MicroWorld-eScan Trojan.RansomKD.12632146
Tencent Nsis.Trojan.Cayu.Lmke
Ad-Aware Trojan.RansomKD.12632146
Sophos Mal/Generic-R + Mal/Cerber-I
Comodo Malware@#3hifrwmuue5uo
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_CERBERENC.SMNS4
McAfee-GW-Edition BehavesLike.Win32.ObfusRansom.fc
FireEye Generic.mg.a940dc2c55cdc2bc
Emsisoft Trojan.RansomKD.12632146 (B)
SentinelOne Static AI – Suspicious PE
Avira TR/Dropper.Gen
Microsoft Backdoor:Win32/Konus.A
Arcabit Trojan.RansomKD.DC0C052
AegisLab Trojan.Multi.Generic.4!c
GData Trojan.RansomKD.12632146
McAfee Artemis!A940DC2C55CD
MAX malware (ai score=100)
Panda Trj/CI.A
TrendMicro-HouseCall Ransom_CERBERENC.SMNS4
Fortinet W32/Injector.FU!tr
AVG Win32:Malware-gen
Paloalto generic.ml

How to remove NSIS/Injector.FW 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.FW 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.FW 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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