Win32/Small.NNZ

What is Win32/Small.NNZ infection?

In this short article you will certainly locate concerning the definition of Win32/Small.NNZ and its unfavorable influence on your computer system. Such ransomware are a form of malware that is clarified by online frauds to require paying the ransom by a victim.

Most of the instances, Win32/Small.NNZ infection will instruct its victims to initiate funds move for the objective of counteracting the modifications that the Trojan infection has introduced to the victim’s tool.

Win32/Small.NNZ Summary

These alterations can be as follows:

  • 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.

  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • The executable is compressed using UPX;
  • Uses Windows utilities for basic functionality;
  • 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 slightly modified copy of itself;
  • Ciphering the files located on the sufferer’s disk drive — so the sufferer can no more utilize the data;
  • Preventing routine access to the target’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

Win32/Small.NNZ

One of the most common channels where Win32/Small.NNZ Ransomware Trojans are infused are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As a repercussion of customer winding up on a source that holds a malicious software application;

As quickly as the Trojan is efficiently injected, it will either cipher the information on the victim’s computer or stop the tool from functioning in a correct way – while likewise putting a ransom note that discusses the need for the victims to effect the payment for the purpose of decrypting the files or restoring the file system back to the initial condition. In most circumstances, the ransom note will certainly turn up when the customer reboots the COMPUTER after the system has actually currently been damaged.

Win32/Small.NNZ circulation networks.

In numerous corners of the globe, Win32/Small.NNZ expands by jumps and bounds. However, the ransom money notes as well as methods of obtaining the ransom money amount might differ depending on particular local (local) setups. The ransom notes and also techniques of obtaining the ransom money quantity may differ depending on certain neighborhood (local) settings.

Ransomware injection

For instance:

    Faulty informs concerning unlicensed software.

    In particular locations, the Trojans commonly wrongfully report having actually spotted some unlicensed applications enabled on the victim’s gadget. The alert after that demands the user to pay the ransom.

    Faulty statements concerning illegal material.

    In countries where software piracy is much less popular, this technique is not as efficient for the cyber scams. Conversely, the Win32/Small.NNZ popup alert may falsely declare to be stemming from a police establishment and also will certainly report having located child porn or other prohibited data on the gadget.

    Win32/Small.NNZ popup alert may wrongly claim to be deriving from a legislation enforcement institution as well as will certainly report having situated youngster pornography or other illegal data on the tool. The alert will similarly have a need for the individual to pay the ransom money.

Technical details

File Info:

crc32: 3C123D00md5: 093152ed073656c47d691caa408fb688name: 093152ED073656C47D691CAA408FB688.mlwsha1: 4ae60e74a3abd58165d4a0838e85e2ff699422fasha256: 26c258e3044d3ce719a6265b29d0a5ef8551290486d340dd583461a4466a8634sha512: c18bdb8cff7e12207a366c5457627d68d5297854e1bfe95162bc26888966defb7a62a43a54f42bff3efb82fee54025549f9da5b6dba2686ee711ca01418ab186ssdeep: 384:Q5ll5pr6HpSE4x3Cb1qm+vMS1q0t0yYbOEQn9X6ZCsmHAgSne:MHp60E4Cb1j0t0y0OdqclH7Getype: PE32 executable (console) Intel 80386, for MS Windows, UPX compressed

Version Info:

0: [No Data]

Win32/Small.NNZ also known as:

GridinSoft Trojan.Ransom.Gen
Elastic malicious (high confidence)
FireEye Trojan.GenericKD.43732356
McAfee Artemis!093152ED0736
Cylance Unsafe
AegisLab Trojan.Win32.Blocker.j!c
Sangfor Ransom.Win32.Blocker.jwho
K7AntiVirus Riskware ( 0040eff71 )
BitDefender Trojan.GenericKD.43732356
K7GW Riskware ( 0040eff71 )
Cybereason malicious.d07365
Symantec ML.Attribute.HighConfidence
APEX Malicious
Avast Win32:Malware-gen
Cynet Malicious (score: 90)
Kaspersky Trojan-Ransom.Win32.Blocker.jwho
Alibaba Ransom:Win32/Blocker.d51727e9
NANO-Antivirus Trojan.Win32.Blocker.elmrvw
MicroWorld-eScan Trojan.GenericKD.43732356
Rising Ransom.Blocker!8.12A (CLOUD)
Ad-Aware Trojan.GenericKD.43732356
Emsisoft Trojan.GenericKD.43732356 (B)
F-Secure Heuristic.HEUR/Malware
Zillya Trojan.Blocker.Win32.37388
McAfee-GW-Edition BehavesLike.Win32.Downloader.mm
Sophos Mal/Generic-S
Ikarus Trojan.Blocker
Avira HEUR/Malware
MAX malware (ai score=88)
Microsoft Trojan:Win32/Dynamer!rfn
Arcabit Trojan.Generic.D29B4D84
AhnLab-V3 Trojan/Win32.Blocker.C2306043
ZoneAlarm Trojan-Ransom.Win32.Blocker.jwho
GData Trojan.GenericKD.43732356
ESET-NOD32 a variant of Win32/Small.NNZ
VBA32 suspected of Trojan.Downloader.gen.h
ALYac Trojan.GenericKD.43732356
TACHYON Ransom/W32.Blocker.38141.B
Malwarebytes Malware.Heuristic.1003
Panda Trj/GdSda.A
Tencent Malware.Win32.Gencirc.114b0b3c
Yandex Trojan.GenAsa!2g3pLW7gZDo
SentinelOne Static AI – Suspicious PE
Fortinet W32/Blocker.JWHO!tr
BitDefenderTheta Gen:NN.ZexaF.34608.bmIfaC6u8Yn
AVG Win32:Malware-gen
Qihoo-360 Win32/Trojan.Ransom.0d3

How to remove Win32/Small.NNZ 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

Run the setup file.

Run Setup.exe
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 Scanning

Click on “Clean Now”.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

Full version of GridinSoft

If the guide doesn’t help you to remove Win32/Small.NNZ you can always ask me in the comments for getting help.

References

    About the author

    Robert Bailey

    Security engineer focused on malware behavior, removal workflows, and Windows hardening. Robert reviews threat articles for practical accuracy, checking detection names, symptoms, and cleanup steps before publication.

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