Written by Robert Bailey

What is Trojan-Ransom.NSIS.Onion.qlz infection?

In this post you will certainly find regarding the meaning of Trojan-Ransom.NSIS.Onion.qlz as well as its unfavorable effect on your computer. Such ransomware are a form of malware that is specified by on-line scams to require paying the ransom by a victim.

GridinSoft Anti-Malware Review

It is better to prevent, than repair and repent!

When we talk about the intrusion of unfamiliar programs into your computer’s work, the proverb “Forewarned is forearmed” describes the situation as accurately as possible. Gridinsoft Anti-Malware is exactly the tool that is always useful to have in your armory: fast, efficient, up-to-date. It is appropriate to use it as an emergency help at the slightest suspicion of infection.
GridinSoft Anti-Malware 6-day trial available.
EULA | Privacy Policy | GridinSoft

In the majority of the cases, Trojan-Ransom.NSIS.Onion.qlz infection will advise its targets to start funds move for the function of counteracting the amendments that the Trojan infection has actually presented to the sufferer’s device.

Trojan-Ransom.NSIS.Onion.qlz Summary

These adjustments can be as follows:

  • Injection (inter-process);
  • Injection (Process Hollowing);
  • 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.
  • A process attempted to delay the analysis task.;
  • 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;
  • Executed a process and injected code into it, probably while unpacking;
  • Attempts to delete volume shadow copies;
  • A system process is generating network traffic likely as a result of process injection;
  • Behavior consistent with a dropper attempting to download the next stage.;
  • 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
  • Attempts to modify browser security settings;
  • Creates a copy of itself;
  • Harvests information related to installed mail clients;
  • Collects information to fingerprint the system. There are behavioral human characteristics that can be used to digitally identify a person to grant access to systems, devices, or data. Unlike passwords and verification codes, fingerprints are fundamental parts of user’s identities. Among the threats blocked on biometric data processing and storage systems is spyware, the malware used in phishing attacks (mostly spyware downloaders and droppers), ransomware, and Banking Trojans as posing the greatest danger.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the records situated on the sufferer’s hard disk — so the victim can no longer utilize the data;
  • Preventing regular accessibility to the victim’s workstation;


The most normal networks whereby Trojan-Ransom.NSIS.Onion.qlz Trojans are injected are:

  • By ways of phishing emails;
  • As a repercussion of user ending up on a resource that organizes a malicious software;

As quickly as the Trojan is effectively injected, it will certainly either cipher the data on the target’s PC or protect against the tool from working in an appropriate fashion – while likewise putting a ransom note that mentions the demand for the victims to effect the settlement for the purpose of decrypting the files or recovering the file system back to the initial problem. In the majority of instances, the ransom money note will certainly turn up when the client reboots the COMPUTER after the system has already been harmed.

Trojan-Ransom.NSIS.Onion.qlz circulation networks.

In various corners of the globe, Trojan-Ransom.NSIS.Onion.qlz expands by leaps as well as bounds. However, the ransom notes and techniques of extorting the ransom money amount may vary depending upon particular regional (regional) setups. The ransom notes and methods of obtaining the ransom money quantity may differ depending on specific neighborhood (local) settings.

Ransomware injection

For example:

    Faulty notifies about unlicensed software application.

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

    Faulty declarations about prohibited web content.

    In nations where software piracy is much less popular, this technique is not as effective for the cyber fraudulences. Conversely, the Trojan-Ransom.NSIS.Onion.qlz popup alert might incorrectly assert to be deriving from a law enforcement organization as well as will certainly report having located child pornography or various other illegal data on the tool.

    Trojan-Ransom.NSIS.Onion.qlz popup alert may wrongly assert to be acquiring from a legislation enforcement establishment and also will certainly report having located kid porn or other illegal data on the tool. The alert will similarly contain a requirement for the customer to pay the ransom.

Technical details

File Info:

crc32: 8BF4277E
md5: 7a7850b6c9f1b0873160e20ba2ed5fdf
name: 7A7850B6C9F1B0873160E20BA2ED5FDF.mlw
sha1: 6ecd0bca7c8c4d358ef16749d7c2a5a4ee934087
sha256: 7e19c20e3e65acb81359a815c1e79bfc527fd60f742bc339c3f33326de0c9c92
sha512: c785d4328dd2c72d128c0c7dcc2d1da99510733b64a688bff5852249ecd97e83329bed54cfc17397aef809721cad7109aec1624a227f37709e14482de8de78c0
ssdeep: 6144:LMMYNXqBBBWMj8iqQANFL/x5Hue3+zKT2F+34WnmDlhkKUZQl2q/qRZ:tnBWMj8j16Kys6lCKUZQsq/CZ
type: PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive

Version Info:

0: [No Data]

Trojan-Ransom.NSIS.Onion.qlz also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Trojan ( 004e24c81 )
Elastic malicious (high confidence)
DrWeb Trojan.SkypeSpam.10803
Cynet Malicious (score: 90)
CAT-QuickHeal Ransom.Onion
McAfee Generic.ys
Cylance Unsafe
Zillya Trojan.Onion.Win32.2230
Sangfor Trojan.Win32.Save.a
Alibaba Ransom:Win32/Onion.4ea567e6
K7GW Trojan ( 004e24c81 )
Cybereason malicious.6c9f1b
Cyren W32/Onion.RKIF-1102
Symantec Packed.NSISPacker!g5
ESET-NOD32 Win32/Filecoder.TorrentLocker.A
Zoner Trojan.Win32.40950
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.NSIS.Onion.qlz
BitDefender Trojan.GenericKD.3290845
NANO-Antivirus Trojan.Win32.Filecoder.edmius
SUPERAntiSpyware Ransom.CryptoLocker/Variant
MicroWorld-eScan Trojan.GenericKD.3290845
Tencent Nsis.Trojan.Onion.Ajca
Ad-Aware Trojan.GenericKD.3290845
Sophos Mal/Generic-R + Troj/Miuref-CK
Comodo Malware@#6dw9vvddv8ns
BitDefenderTheta Gen:NN.ZedlaF.34628.eq4@aSAkGmc
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_CERBERENC.SMNS1
McAfee-GW-Edition Generic.ys
Emsisoft Trojan.GenericKD.3290845 (B)
SentinelOne Static AI – Suspicious PE
Webroot W32.Trojan.Gen
Avira TR/Dropper.lqxb
eGambit Unsafe.AI_Score_82%
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Ransom:Win32/Teerac
AegisLab Trojan.NSIS.Onion.4!c
GData Win32.Trojan.Agent.OP37VR
TACHYON Ransom/W32.Agent.379186
AhnLab-V3 Trojan/Win32.Agent.C1470773
VBA32 Trojan-Ransom.Onion
MAX malware (ai score=100)
Panda Trj/WLT.B
TrendMicro-HouseCall Ransom_CERBERENC.SMNS1
Rising Ransom.Enestedel!8.E513 (CLOUD)
Yandex Trojan.Agent.Gen.ATJ
Ikarus Trojan.Win32.Filecoder
Fortinet W32/Malicious_Behavior.VEX
AVG Win32:Malware-gen
Qihoo-360 Win32/Ransom.TorrentLocker.HyoD78oA

How to remove Trojan-Ransom.NSIS.Onion.qlz 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 Trojan-Ransom.NSIS.Onion.qlz 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-Ransom.NSIS.Onion.qlz you can always ask me in the comments for getting help.

User Review
0 (0 votes)
Comments Rating 0 (0 reviews)


  1. GridinSoft Anti-Malware Review from HowToFix site:
  2. More information about GridinSoft products:

About the author

Robert Bailey

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

Leave a Reply


This site uses Akismet to reduce spam. Learn how your comment data is processed.