Written by Robert Bailey

What is Ransom:Win32/Nobig infection?

In this short article you will locate about the meaning of Ransom:Win32/Nobig as well as its unfavorable impact on your computer system. Such ransomware are a form of malware that is specified by on the internet frauds to require paying the ransom money by a sufferer.

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Most of the cases, Ransom:Win32/Nobig virus will instruct its victims to initiate funds move for the objective of reducing the effects of the amendments that the Trojan infection has actually presented to the victim’s device.

Ransom:Win32/Nobig Summary

These modifications can be as adheres to:

  • Unconventionial language used in binary resources: Russian;
  • 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
  • Exhibits possible ransomware file modification behavior;
  • Writes a potential ransom message to disk;
  • 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.
  • Likely virus infection of existing system binary;
  • Appends a known multi-family ransomware file extension to files that have been encrypted;
  • Ciphering the documents situated on the victim’s hard drive — so the victim can no more use the data;
  • Preventing normal access to the sufferer’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 common networks whereby Ransom:Win32/Nobig Ransomware are infused are:

  • By methods of phishing emails;
  • As an effect of user ending up on a source that hosts a harmful software application;

As soon as the Trojan is efficiently infused, it will either cipher the information on the target’s computer or protect against the tool from working in an appropriate fashion – while also placing a ransom note that states the requirement for the sufferers to effect the settlement for the objective of decrypting the records or restoring the file system back to the initial problem. In many circumstances, the ransom note will certainly turn up when the client restarts the PC after the system has actually already been damaged.

Ransom:Win32/Nobig distribution networks.

In numerous corners of the globe, Ransom:Win32/Nobig grows by jumps as well as bounds. Nonetheless, the ransom notes and methods of obtaining the ransom amount might vary relying on specific neighborhood (local) setups. The ransom money notes and also techniques of extorting the ransom amount might vary depending on particular regional (local) setups.

Ransomware injection

As an example:

    Faulty informs regarding unlicensed software application.

    In certain locations, the Trojans frequently wrongfully report having spotted some unlicensed applications made it possible for on the victim’s device. The sharp after that demands the individual to pay the ransom.

    Faulty declarations concerning unlawful material.

    In countries where software piracy is much less prominent, this method is not as effective for the cyber scams. Alternatively, the Ransom:Win32/Nobig popup alert may incorrectly claim to be deriving from a police institution and also will report having situated youngster porn or other illegal information on the gadget.

    Ransom:Win32/Nobig popup alert might wrongly claim to be obtaining from a legislation enforcement organization and will certainly report having situated youngster pornography or various other unlawful information on the device. The alert will similarly consist of a requirement for the user to pay the ransom.

Technical details

File Info:

crc32: 5FD485F4
md5: bb355a29721d6ca19d8f836acb4ebdde
name: BB355A29721D6CA19D8F836ACB4EBDDE.mlw
sha1: 2afa6435ca2f7fff9b0c30c7a3565e066e45a89c
sha256: a6d3fae615bacfec170dde624cd348e5c6284abf2c78da990be23bfd07cee02d
sha512: 5b497b54ec7d1f195694963944d58dc5f825b2814209a02a98e694438f52b10d94d182d323767a4b24fc956734db6a216a8a52a97ce5750a1e685fbdd8ddd3fa
ssdeep: 12288:+9g7MZMmPoxvkiLqX55uw+e0tMPBvSGOZelee2:+tZMmPomiLqie0tMP1Shele9
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Ransom:Win32/Nobig also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 0051acb11 )
DrWeb Trojan.Encoder.15110
Cynet Malicious (score: 100)
ALYac DeepScan:Generic.Ransom.Gibon.1E7846A3
Cylance Unsafe
Zillya Trojan.Crypren.Win32.547
Sangfor Trojan.Win32.Save.a
K7GW Trojan ( 0051acb11 )
Cybereason malicious.9721d6
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Filecoder.Gibon.A
APEX Malicious
Avast Win32:Malware-gen
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender DeepScan:Generic.Ransom.Gibon.1E7846A3
NANO-Antivirus Trojan.Win32.Strictor.eusisy
MicroWorld-eScan DeepScan:Generic.Ransom.Gibon.1E7846A3
Tencent Win32.Trojan.Filecoder.Pfsv
Ad-Aware DeepScan:Generic.Ransom.Gibon.1E7846A3
Sophos Mal/Generic-S
Comodo Malware@#1g0ff5oob3t47
BitDefenderTheta Gen:NN.ZexaF.34678.GuW@a4RigPjk
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.PUPXFM.hh
FireEye Generic.mg.bb355a29721d6ca1
Emsisoft DeepScan:Generic.Ransom.Gibon.1E7846A3 (B)
Jiangmin Trojan.Crypren.kk
Avira HEUR/AGEN.1123946
eGambit Unsafe.AI_Score_99%
Microsoft Ransom:Win32/Nobig
Arcabit DeepScan:Generic.Ransom.Gibon.1E7846A3
AegisLab Trojan.Win32.Generic.4!c
GData Win32.Trojan-Ransom.Gibon.A
AhnLab-V3 Trojan/Win32.Crypren.R212092
McAfee Artemis!BB355A29721D
MAX malware (ai score=73)
VBA32 Trojan-Ransom.Crypren
Panda Trj/GdSda.A
Rising Ransom.Crypren!8.1D6C (CLOUD)
Ikarus Trojan-Ransom.Rokku
Fortinet W32/Crypren.ADYJ!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Trojan.84e

How to remove Ransom:Win32/Nobig 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 Ransom:Win32/Nobig 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 Ransom:Win32/Nobig 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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