Written by Robert Bailey

What is Trojan.Dropper.NSIS infection?

In this article you will certainly discover about the interpretation of Trojan.Dropper.NSIS as well as its negative influence on your computer. Such ransomware are a form of malware that is specified by on-line frauds to require paying the ransom money by a target.

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In the majority of the situations, Trojan.Dropper.NSIS ransomware will advise its sufferers to launch funds move for the purpose of reducing the effects of the modifications that the Trojan infection has presented to the target’s gadget.

Trojan.Dropper.NSIS Summary

These alterations can be as follows:

  • Executable code extraction;
  • Creates RWX memory;
  • Reads data out of its own binary image;
  • Installs itself for autorun at Windows startup;
  • Network activity detected but not expressed in API logs;
  • Anomalous binary characteristics;
  • Ciphering the papers found on the target’s hard disk — so the target can no more utilize the data;
  • Preventing normal accessibility to the target’s workstation;


The most typical networks through which Trojan.Dropper.NSIS are infused are:

  • By means of phishing e-mails;
  • As a repercussion of customer ending up on a source that holds a malicious software program;

As quickly as the Trojan is efficiently infused, it will either cipher the data on the target’s computer or protect against the gadget from functioning in a correct way – while additionally positioning a ransom money note that mentions the need for the sufferers to effect the settlement for the objective of decrypting the files or restoring the documents system back to the first condition. In a lot of instances, the ransom note will certainly come up when the customer restarts the COMPUTER after the system has actually currently been harmed.

Trojan.Dropper.NSIS circulation channels.

In various corners of the world, Trojan.Dropper.NSIS grows by jumps and bounds. However, the ransom money notes and also techniques of obtaining the ransom money quantity may vary depending upon specific local (local) setups. The ransom notes and techniques of extorting the ransom quantity might differ depending on certain neighborhood (regional) settings.

Ransomware injection

For instance:

    Faulty notifies about unlicensed software.

    In particular locations, the Trojans usually wrongfully report having actually found some unlicensed applications allowed on the sufferer’s gadget. The sharp then demands the customer to pay the ransom.

    Faulty declarations concerning prohibited web content.

    In countries where software application piracy is much less preferred, this approach is not as effective for the cyber frauds. Additionally, the Trojan.Dropper.NSIS popup alert might falsely declare to be originating from a law enforcement establishment and will certainly report having located kid porn or various other prohibited data on the gadget.

    Trojan.Dropper.NSIS popup alert might incorrectly claim to be deriving from a regulation enforcement organization and will certainly report having located kid porn or various other unlawful data on the device. The alert will similarly include a requirement for the user to pay the ransom.

Technical details

File Info:

crc32: 90745AC1
md5: 90073e952a3338472dbb560ff68f2225
name: win.exe
sha1: 6ff48ccd2b94383ab12b3279b7fa24670ebc60f4
sha256: 8618e2aa6e4586700485b1438c3d41fc0e2c4f7e1461ab5728a6037cbce255c9
sha512: 273be8e31a6affba00f6a4ffce08fd4422bcb3eaffccf1248d7f72902a02050fe633d0a5cc56d7e41a1f07d4d6ce770dde5b0beb3da73031c84bda1c0aed2754
ssdeep: 6144:LR+xX1U70O7Dko1KnIVjMT7HN2+dPQYfZ+BPzDQQ0omrCPUlixhH/ctwpvg:VH1cimHN2GcPP0rixhH/kwm
type: PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive

Version Info:

0: [No Data]

Trojan.Dropper.NSIS also known as:

GridinSoft Trojan.Ransom.Gen
Bkav HW32.Packed.
DrWeb Trojan.PWS.Stealer.27616
MicroWorld-eScan Gen:Variant.Strictor.233537
McAfee Artemis!90073E952A33
Malwarebytes Trojan.Dropper.NSIS
Sangfor Malware
K7AntiVirus Trojan ( 0055d1851 )
BitDefender Gen:Variant.Strictor.233537
K7GW Trojan ( 0055d1851 )
Symantec ML.Attribute.HighConfidence
APEX Malicious
GData Gen:Variant.Strictor.233537
Kaspersky HEUR:Trojan.Win32.Waldek.gen
Alibaba Trojan:Win32/Injector.6c8bae60
AegisLab Trojan.Win32.Makoob.4!c
Rising Trojan.Generic@ML.88 (RDML:bfUOMGhffr8hQKU/B/ju+Q)
Ad-Aware Gen:Variant.Strictor.233537
Emsisoft Gen:Variant.Strictor.233537 (B)
F-Secure Trojan.TR/Injector.pjhwq
Zillya Trojan.Makoob.Win32.245
McAfee-GW-Edition BehavesLike.Win32.ObfusRansom.gc
Sophos Mal/Generic-S
Ikarus Trojan.Win32.Injector
Avira TR/Injector.pjhwq
MAX malware (ai score=80)
Antiy-AVL Trojan/Win32.Injector
Endgame malicious (high confidence)
Arcabit Trojan.Strictor.D39041
ZoneAlarm HEUR:Trojan.Win32.Waldek.gen
Microsoft Trojan:Win32/Occamy.C
AhnLab-V3 Malware/Win32.Generic.C3624778
VBA32 Trojan.Makoob
ALYac Gen:Variant.Strictor.233537
Cylance Unsafe
Panda Trj/CI.A
ESET-NOD32 Win32/Injector.EJLY
TrendMicro-HouseCall Trojan.MSIL.WACATAC.USXVPLA19
MaxSecure Trojan.Malware.74732546.susgen
Fortinet W32/Injector.EJHX!tr
AVG FileRepMalware
CrowdStrike win/malicious_confidence_60% (W)
Qihoo-360 Win32/Trojan.aee

How to remove Trojan.Dropper.NSIS 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 install-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.Dropper.NSIS 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.Dropper.NSIS you can always ask me in the comments for getting help.

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  1. GridinSoft Anti-Malware Review from HowToFix site:
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About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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