NSIS/Injector.QA
Daniel Foster
Updated on April 09, 2026
What is NSIS/Injector.QA infection?
In this short article you will discover about the meaning of NSIS/Injector.QA as well as its adverse effect on your computer system. Such ransomware are a type of malware that is specified by online frauds to demand paying the ransom money by a victim.
Most of the situations, NSIS/Injector.QA ransomware will advise its sufferers to initiate funds transfer for the function of reducing the effects of the modifications that the Trojan infection has actually presented to the target’s tool.
NSIS/Injector.QA 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.
- 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 files located on the sufferer’s hard disk drive — so the target can no more utilize the information;
- Preventing regular accessibility to the target’s workstation;
NSIS/Injector.QA
One of the most typical channels through which NSIS/Injector.QA are infused are:
- By means of phishing e-mails;
- As a repercussion of individual winding up on a source that holds a malicious software application;
As soon as the Trojan is effectively injected, it will certainly either cipher the information on the victim’s computer or protect against the device from functioning in a proper way – while additionally putting a ransom note that states the requirement for the victims to impact the repayment for the purpose of decrypting the papers or restoring the file system back to the preliminary problem. In most circumstances, the ransom money note will come up when the customer restarts the PC after the system has actually currently been damaged.
NSIS/Injector.QA distribution channels.
In various edges of the globe, NSIS/Injector.QA grows by leaps and bounds. Nonetheless, the ransom money notes as well as methods of obtaining the ransom amount might differ depending on certain neighborhood (regional) settings. The ransom notes as well as tricks of extorting the ransom money quantity may differ depending on certain regional (regional) setups.
For instance:
Faulty signals concerning unlicensed software program.
In specific locations, the Trojans typically wrongfully report having discovered some unlicensed applications enabled on the sufferer’s gadget. The sharp then demands the customer to pay the ransom money.
Faulty statements regarding unlawful content.
In countries where software piracy is much less preferred, this approach is not as reliable for the cyber scams. Conversely, the NSIS/Injector.QA popup alert might wrongly assert to be stemming from a police establishment and also will report having situated child porn or other unlawful information on the device.
NSIS/Injector.QA popup alert may incorrectly assert to be acquiring from a legislation enforcement institution as well as will certainly report having situated youngster porn or other prohibited information on the tool. The alert will in a similar way consist of a requirement for the customer to pay the ransom money.
Technical details
File Info:
crc32: 77516197md5: f76e8421866ddf2332688c0fbe2716d2name: F76E8421866DDF2332688C0FBE2716D2.mlwsha1: be1d32c1162af9d1d47a1e2820aa329b355f78aesha256: d3df77af71bce64abab49f72c1d959d25b1cfa690d9f481b849c51e861020cf3sha512: da4f1f43f247a15c6e307d19e59e10a948914c4ec05c13e12aba7b844ef6c4c20a5e92513624acfec90709eec93f1e35fbc57847a4c9dfc4327d75a37c000f18ssdeep: 24576:OUcr2IuNdnBdYiA4/Nv9Kx/99QL8vZdEvVg8oOCt6A:QiIid3YsNEx/99E8gvVg8oOCt6Atype: PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archiveVersion Info:
0: [No Data]
NSIS/Injector.QA also known as:
| GridinSoft | Trojan.Ransom.Gen |
| Bkav | W32.AIDetect.malware1 |
| K7AntiVirus | Trojan ( 005022e41 ) |
| Elastic | malicious (high confidence) |
| DrWeb | Trojan.Encoder.7111 |
| Cynet | Malicious (score: 85) |
| McAfee | Artemis!F76E8421866D |
| Cylance | Unsafe |
| Sangfor | Ransom.Win32.Shade.lkb |
| CrowdStrike | win/malicious_confidence_80% (D) |
| Alibaba | Ransom:Win32/Shade.0391e43b |
| K7GW | Trojan ( 005022e41 ) |
| Cybereason | malicious.1162af |
| Symantec | Ransom.Cerber |
| ESET-NOD32 | NSIS/Injector.QA |
| APEX | Malicious |
| Avast | Win32:Trojan-gen |
| Kaspersky | Trojan-Ransom.Win32.Shade.lkb |
| NANO-Antivirus | Trojan.Nsis.Shade.ekixwb |
| Tencent | Win32.Trojan.Shade.Eddu |
| Sophos | Mal/Generic-S + Mal/Cerber-AA |
| Comodo | Malware@#2kf5jhg8i5sir |
| VIPRE | Trojan.Win32.Generic!BT |
| TrendMicro | Ransom_TROLDESH.BZP |
| McAfee-GW-Edition | BehavesLike.Win32.ObfusRansom.dc |
| FireEye | Generic.mg.f76e8421866ddf23 |
| SentinelOne | Static AI – Suspicious PE |
| Webroot | W32.Trojan.GenKD |
| Avira | TR/Dropper.Gen |
| Microsoft | Ransom:Win32/Troldesh.A |
| AegisLab | Trojan.Multi.Generic.4!c |
| ZoneAlarm | Trojan-Ransom.Win32.Shade.lkb |
| AhnLab-V3 | Trojan/Win32.Shade.C1743999 |
| MAX | malware (ai score=100) |
| Malwarebytes | Ransom.Troldesh |
| Panda | Trj/CI.A |
| TrendMicro-HouseCall | Ransom_TROLDESH.BZP |
| Ikarus | Trojan.NSIS.Injector |
| Fortinet | W32/Injector.SH!tr |
| AVG | Win32:Trojan-gen |
| Paloalto | generic.ml |
| Qihoo-360 | Win32/Ransom.Shade.HoMASOgA |
How to remove NSIS/Injector.QA ransomware?
There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft">2.
Download GridinSoft Anti-Malware.
You can download GridinSoft Anti-Malware by clicking the button below:
Download GridinSoft Anti-MalwareRun 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.
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.
Press “Install” button.
Once installed, Anti-Malware will automatically run.
Wait for the Anti-Malware scan to complete.
GridinSoft Anti-Malware will automatically start scanning your system for NSIS/Injector.QA 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.
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.
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 Anti-Malware
If the guide doesn’t help you to remove NSIS/Injector.QA you can always ask me in the comments for getting help.
References
- GridinSoft Anti-Malware Review from HowToFix site:
- More information about GridinSoft products:
