Win32/Filecoder.NBF

What is Win32/Filecoder.NBF infection?

In this post you will discover concerning the definition of Win32/Filecoder.NBF and its unfavorable impact on your computer. Such ransomware are a type of malware that is elaborated by on the internet scams to demand paying the ransom by a sufferer.

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In the majority of the situations, Win32/Filecoder.NBF virus will advise its victims to start funds move for the objective of counteracting the amendments that the Trojan infection has actually presented to the target’s device.

Win32/Filecoder.NBF Summary

These modifications can be as adheres to:

  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • Unconventionial language used in binary resources: Russian;
  • Deletes its original binary from disk;
  • 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.
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Creates a copy of itself;
  • Ciphering the papers found on the target’s hard drive — so the victim can no longer utilize the information;
  • 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.

Win32/Filecoder.NBF

The most normal networks whereby Win32/Filecoder.NBF Trojans are injected are:

  • By means of phishing emails;
  • As a repercussion of individual winding up on a source that organizes a harmful software;

As soon as the Trojan is effectively injected, it will either cipher the information on the sufferer’s computer or avoid the device from operating in an appropriate way – while additionally positioning a ransom note that discusses the need for the sufferers to effect the repayment for the purpose of decrypting the papers or bring back the file system back to the first problem. In a lot of circumstances, the ransom note will turn up when the client reboots the COMPUTER after the system has actually already been damaged.

Win32/Filecoder.NBF distribution networks.

In various edges of the world, Win32/Filecoder.NBF expands by leaps and also bounds. Nevertheless, the ransom money notes and tricks of obtaining the ransom money quantity might differ depending upon specific regional (local) settings. The ransom money notes and methods of extorting the ransom amount might differ depending on specific regional (regional) settings.

Ransomware injection

For instance:

    Faulty informs concerning unlicensed software.

    In particular locations, the Trojans usually wrongfully report having actually identified some unlicensed applications allowed on the sufferer’s tool. The alert then requires the user to pay the ransom money.

    Faulty declarations concerning prohibited material.

    In countries where software program piracy is much less prominent, this approach is not as reliable for the cyber fraudulences. Additionally, the Win32/Filecoder.NBF popup alert might wrongly declare to be stemming from a law enforcement institution and will report having situated child porn or other illegal data on the gadget.

    Win32/Filecoder.NBF popup alert might incorrectly claim to be obtaining from a law enforcement institution and will report having located youngster porn or various other unlawful data on the device. The alert will in a similar way consist of a demand for the individual to pay the ransom.

Technical details

File Info:

crc32: BCF58592
md5: da71729bb8ffca2f8b77edea7f5bde7a
name: DA71729BB8FFCA2F8B77EDEA7F5BDE7A.mlw
sha1: aace024397626ec331f2b34862fd5f100cf5294b
sha256: f51719dfeac4f52a90d52188c3b3e9145d77f612da784510c968564aa0d46e9e
sha512: 76d5293af20c92aeb17c0fd32d25c1264ef8b6f5c13e72cdebbc3520c980dcfac3d951a85652a95bb13dd77e3a7d6fa76ac039134ed7ec218df457597525fefb
ssdeep: 3072:FesSz8QlCzBz1vBEN73yptw1cnMb72Jj5FKXu9j8:BJB9x0iJjKe+
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Filecoder.NBF also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
Elastic malicious (high confidence)
DrWeb Trojan.DownLoader9.24297
Cynet Malicious (score: 100)
ALYac Trojan.Ransom.Bucbi
Cylance Unsafe
Zillya Trojan.Filecoder.Win32.171
Sangfor Ransom.Win32.Bucbi.A
Alibaba Trojan:Win32/Starter.ali2000005
K7GW Riskware ( 0040eff71 )
K7AntiVirus Riskware ( 0040eff71 )
Cyren W32/Trojan.WVLN-3858
Symantec Ransom.Bucbi
ESET-NOD32 a variant of Win32/Filecoder.NBF
APEX Malicious
Avast Win32:Agent-ASTJ [Trj]
ClamAV Win.Ransomware.Bucbi-6357228-0
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Heur.Ransom.RTH.1
NANO-Antivirus Trojan.Win32.Filecoder.cttkmx
ViRobot Trojan.Win32.Bucbi.240128
MicroWorld-eScan Gen:Heur.Ransom.RTH.1
Tencent Win32.Trojan.Ducry.Wstl
Ad-Aware Gen:Heur.Ransom.RTH.1
Sophos Mal/Generic-S
Comodo Malware@#cs7b41aqhp34
BitDefenderTheta Gen:NN.ZexaCO.34670.puW@auG1SYik
VIPRE Trojan.Win32.Cryptolocker.mc (fs)
TrendMicro Ransom_CRYPTFILE.C
McAfee-GW-Edition BehavesLike.Win32.Worm.dh
FireEye Gen:Heur.Ransom.RTH.1
Emsisoft Gen:Heur.Ransom.RTH.1 (B)
SentinelOne Static AI – Suspicious PE
Jiangmin Trojan/Ducry.c
Webroot W32.Adware.Gen
Avira TR/CryptKeeper.A.2
eGambit Unsafe.AI_Score_99%
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Ransom:Win32/Bucbi.A
Arcabit Trojan.Ransom.RTH.1
AegisLab Trojan.Win32.Generic.4!c
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Win32.Trojan-Ransom.Bucbi.A
AhnLab-V3 Malware/Win32.Generic.C328792
McAfee Ransomware-FLT!DA71729BB8FF
MAX malware (ai score=100)
VBA32 BScope.Trojan.Encoder
Panda Generic Malware
TrendMicro-HouseCall Ransom_CRYPTFILE.C
Rising Ransom.Bucbi!8.4A43 (CLOUD)
Ikarus Trojan-Ransom.Bucbi
Fortinet W32/Ursnif.CQ!tr
AVG Win32:Agent-ASTJ [Trj]
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Generic.HwoCyx8A

How to remove Win32/Filecoder.NBF virus?

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.

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Press “Install” button.

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

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References

  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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