Written by Robert Bailey

What is Win32/Gpcode.NAB infection?

In this short article you will certainly discover concerning the meaning of Win32/Gpcode.NAB and also its adverse influence on your computer system. Such ransomware are a form of malware that is elaborated by online scams to require paying the ransom money by a target.

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Most of the situations, Win32/Gpcode.NAB ransomware will certainly instruct its victims to launch funds transfer for the function of neutralizing the modifications that the Trojan infection has presented to the sufferer’s device.

Win32/Gpcode.NAB Summary

These modifications can be as complies with:

  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Exhibits possible ransomware file modification behavior;
  • Appends a known multi-family ransomware file extension to files that have been encrypted;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the records situated on the sufferer’s hard disk drive — so the victim can no longer make use of the data;
  • Preventing routine accessibility 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.


The most common channels where Win32/Gpcode.NAB are injected are:

  • By means of phishing e-mails;
  • As a consequence of individual ending up on a source that hosts a destructive software application;

As soon as the Trojan is effectively infused, it will certainly either cipher the information on the target’s computer or prevent the tool from working in an appropriate manner – while likewise placing a ransom note that mentions the requirement for the sufferers to effect the payment for the objective of decrypting the documents or bring back the data system back to the first condition. In the majority of instances, the ransom note will show up when the client reboots the COMPUTER after the system has actually already been damaged.

Win32/Gpcode.NAB distribution channels.

In different edges of the world, Win32/Gpcode.NAB expands by jumps as well as bounds. Nevertheless, the ransom notes and techniques of extorting the ransom amount might differ depending upon certain regional (regional) setups. The ransom notes and tricks of obtaining the ransom quantity might differ depending on certain regional (regional) settings.

Ransomware injection

For example:

    Faulty notifies concerning unlicensed software program.

    In particular areas, the Trojans often wrongfully report having actually detected some unlicensed applications allowed on the sufferer’s device. The alert after that demands the individual to pay the ransom.

    Faulty declarations about prohibited content.

    In countries where software program piracy is much less preferred, this technique is not as effective for the cyber frauds. Alternatively, the Win32/Gpcode.NAB popup alert might wrongly declare to be stemming from a police organization as well as will certainly report having situated youngster pornography or various other prohibited data on the gadget.

    Win32/Gpcode.NAB popup alert may incorrectly claim to be obtaining from a law enforcement organization as well as will report having situated kid pornography or other illegal information on the gadget. The alert will in a similar way include a requirement for the individual to pay the ransom.

Technical details

File Info:

crc32: 08F12258
md5: 55bdead29e3acf69e4305a63e9759e27
name: 55BDEAD29E3ACF69E4305A63E9759E27.mlw
sha1: c1065f6c902c33562bcff901eae454e910f5b34a
sha256: 795e83f005c071ef6078463f736e4c0dc279d8b5857df5ef57138f052a1ab1ac
sha512: fece931b0b3d47c40deb3017af4b9b644247ad53e51eed40e0201058c708347947c06f941d21655a102803709940fbfb288017913083f8a6e94149a994560d00
ssdeep: 1536:3xsvSuZ++Y09g/+i0jux4rFIzmTY1tsICH9zXNp67zwG:hsv1Mr2q+i0Cxikms/sdRdi
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Gpcode.NAB also known as:

GridinSoft Trojan.Ransom.Gen
DrWeb Trojan.Encoder.21
Cynet Malicious (score: 100)
Cylance Unsafe
Zillya Trojan.Gpcode.Win32.4
Sangfor Trojan.Win32.Generic.8
Alibaba Ransom:Win32/Gpcode.72d854af
K7GW Trojan ( 000711001 )
K7AntiVirus Trojan ( 000711001 )
Cyren W32/Alureon.BY.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 Win32/Gpcode.NAB
APEX Malicious
TotalDefense Win32/Ransom.ME
Avast Win32:Agent-ATAP [Trj]
NANO-Antivirus Trojan.Win32.Gpcode.cwnjej
ViRobot Trojan.Win32.Ransom.65024
Tencent Win32.Trojan.Gpcode.Swvd
Sophos Mal/Generic-S
Comodo Malware@#1f8apu2yn2lrp
BitDefenderTheta AI:Packer.0CEAD0231E
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.Sytro.kc
Jiangmin Trojan/Gpcode.f
Webroot W32.Malware.Gen
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Trojan:Win32/Vigorf.A
AegisLab Worm.Win32.Fujack.mDQv
ZoneAlarm HEUR:Trojan.Win32.Generic
AhnLab-V3 Trojan/Win32.Genome.C21152
Acronis suspicious
McAfee Artemis!55BDEAD29E3A
MAX malware (ai score=100)
VBA32 Trojan-Ransom.Gpcode
Malwarebytes Malware.Heuristic.1003
Panda Trj/PGPCoder.F
Rising Ransom.Gpcode!8.568 (CLOUD)
Yandex Trojan.GenAsa!KgMDhrOy/90
Ikarus Trojan.Win32.Gpcode
eGambit Unsafe.AI_Score_100%
Fortinet W32/Gpcode.AN!tr
AVG Win32:Agent-ATAP [Trj]
Qihoo-360 Win32/Trojan.Ransom.9bf

How to remove Win32/Gpcode.NAB ransomware?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
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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 Win32/Gpcode.NAB 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 Win32/Gpcode.NAB you can always ask me in the comments for getting help.

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  1. GridinSoft Anti-Malware Review from HowToFix site:
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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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