What is NSIS/Injector.SG infection?

In this post you will certainly find regarding the definition of NSIS/Injector.SG and its adverse impact on your computer. Such ransomware are a form of malware that is clarified by on the internet scams to demand paying the ransom money by a sufferer.

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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.
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In the majority of the situations, NSIS/Injector.SG ransomware will instruct its sufferers to initiate funds move for the purpose of counteracting the modifications that the Trojan infection has presented to the target’s tool.

NSIS/Injector.SG Summary

These modifications can be as adheres to:

  • 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);
  • Enumerates user accounts on the system;
  • 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.

  • Creates an excessive number of UDP connection attempts to external IP addresses;
  • Attempts to modify desktop wallpaper;
  • Exhibits behavior characteristic of Cerber ransomware;
  • Attempts to execute a binary from a dead or sinkholed URL;
  • 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.
  • Attempts to access Bitcoin/ALTCoin wallets;
  • 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.
  • Ciphering the files located on the sufferer’s hard drive — so the target can no longer use the data;
  • Preventing regular access to the victim’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.


One of the most normal networks where NSIS/Injector.SG Ransomware are infused are:

  • By ways of phishing e-mails;
  • As an effect of customer ending up on a resource that organizes a destructive software;

As soon as the Trojan is effectively injected, it will certainly either cipher the information on the sufferer’s PC or avoid the gadget from working in a correct fashion – while also placing a ransom note that states the need for the sufferers to impact the settlement for the function of decrypting the records or recovering the documents system back to the first problem. In the majority of instances, the ransom note will show up when the customer restarts the PC after the system has actually currently been harmed.

NSIS/Injector.SG distribution networks.

In various corners of the globe, NSIS/Injector.SG grows by leaps and bounds. However, the ransom notes and methods of extorting the ransom money quantity may differ relying on particular regional (local) settings. The ransom notes and tricks of extorting the ransom quantity may vary depending on particular neighborhood (regional) setups.

Ransomware injection

As an example:

    Faulty notifies concerning unlicensed software application.

    In particular areas, the Trojans often wrongfully report having discovered some unlicensed applications allowed on the target’s tool. The sharp then requires the customer to pay the ransom.

    Faulty statements regarding unlawful web content.

    In nations where software program piracy is much less prominent, this method is not as effective for the cyber scams. Conversely, the NSIS/Injector.SG popup alert might incorrectly claim to be stemming from a law enforcement organization and also will report having situated kid porn or various other prohibited information on the tool.

    NSIS/Injector.SG popup alert may falsely declare to be deriving from a regulation enforcement establishment and also will report having situated kid pornography or various other unlawful data on the gadget. The alert will in a similar way have a requirement for the user to pay the ransom money.

Technical details

File Info:

crc32: 2C7E8A59
md5: 9d0cd31eb4f608214fcc73067c345afb
name: 9D0CD31EB4F608214FCC73067C345AFB.mlw
sha1: 6b11d358f1ba10226e7d89c12aeda877301b5ed2
sha256: 0cd28b912cf4d9898a6f03c4edfd73d1d90faf971ad84b28c6c254408ad7630f
sha512: de91892eeebda26dcf19377dbe663091e9d0e282e85d705b6109645089741ebefc7f68c3b0f5903e13a2711918be3bbfec11206746948c30c6fe0456c64e99db
ssdeep: 6144:NB+cP5LZg3SmFzkL2msD2OCNwphRBcxhyCMGvxQQtLhYhak5SYi:NRPWSmlkRLOC0dQyCFqdhak8p
type: PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive

Version Info:

0: [No Data]

NSIS/Injector.SG also known as:

GridinSoft Trojan.Ransom.Gen
Elastic malicious (high confidence)
DrWeb Trojan.Inject4.4961
MicroWorld-eScan Gen:Heur.NSIS.Cerber.2
FireEye Generic.mg.9d0cd31eb4f60821
CAT-QuickHeal Ransom.Cerber.B
Qihoo-360 Win32/Trojan.Ransom.b44
Cylance Unsafe
Zillya Dropper.Agent.Win32.382777
AegisLab Trojan.Win32.Agent.j!c
Sangfor Malware
K7AntiVirus Trojan ( 005034d51 )
BitDefender Gen:Heur.NSIS.Cerber.2
K7GW Trojan ( 005034d51 )
Cybereason malicious.eb4f60
TrendMicro Ransom_Agent.R002C0OKH20
Symantec Ransom.Cerber
Zoner Trojan.Win32.53157
TrendMicro-HouseCall Ransom_Agent.R002C0OKH20
Avast Win32:Trojan-gen
Kaspersky HEUR:Trojan-Ransom.Win32.Agent.gen
Alibaba Trojan:Win32/Injector.a8359387
NANO-Antivirus Trojan.Nsis.Zerber.ekughz
Rising Trojan.Win32.Zerber.t (CLASSIC)
Sophos Mal/Cerber-AA
Comodo Malware@#2u10onptvybdl
F-Secure Trojan.TR/Dropper.Gen
VIPRE Trojan.Win32.Generic!BT
Invincea Mal/Generic-R + Mal/Cerber-AA
McAfee-GW-Edition BehavesLike.Win32.ObfusRansom.dc
Emsisoft Gen:Heur.NSIS.Cerber.2 (B)
Jiangmin Trojan.Nisloder.ii
Avira TR/Dropper.Gen
Microsoft Trojan:Win32/Ymacco.AA0C
Arcabit Trojan.NSIS.Cerber.2
SUPERAntiSpyware Ransom.Cerber/Variant
ZoneAlarm HEUR:Trojan-Ransom.Win32.Agent.gen
GData Gen:Heur.NSIS.Cerber.2
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Cerber.R194240
McAfee Artemis!9D0CD31EB4F6
MAX malware (ai score=82)
APEX Malicious
ESET-NOD32 a variant of NSIS/Injector.SG
Tencent Win32.Trojan.Agent.Htma
SentinelOne Static AI – Suspicious PE
Fortinet W32/Injector.SH!tr
AVG Win32:Trojan-gen
CrowdStrike win/malicious_confidence_100% (D)

How to remove NSIS/Injector.SG 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

The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes.2.

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.SG 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:

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Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove NSIS/Injector.SG you can always ask me in the comments for getting help.

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  1. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  2. More information about GridinSoft products: https://gridinsoft.com/products/

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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