Win32/Filecoder.NPJ

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Seeing the Win32/Filecoder.NPJ detection name means that your PC is in big danger. This malware can correctly be named as ransomware – virus which encrypts your files and forces you to pay for their decryption. Deleteing it requires some peculiar steps that must be done as soon as possible.
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Win32/Filecoder.NPJ detection is a virus detection you can spectate in your system. It generally shows up after the preliminary procedures on your PC – opening the untrustworthy e-mail messages, clicking the banner in the Internet or mounting the program from suspicious sources. From the instance it shows up, you have a short time to take action until it starts its harmful activity. And be sure – it is far better not to await these malicious actions.

What is Win32/Filecoder.NPJ virus?

Win32/Filecoder.NPJ is ransomware-type malware. It searches for the files on your disk drive, ciphers it, and after that asks you to pay the ransom for receiving the decryption key. Besides making your files inaccessible, this malware also does a ton of damage to your system. It modifies the networking setups in order to avoid you from looking for the removal articles or downloading the anti-malware program. Sometimes, Win32/Filecoder.NPJ can also prevent the setup of anti-malware programs.

Win32/Filecoder.NPJ Summary

In total, Win32/Filecoder.NPJ malware activities in the infected PC are next:

  • SetUnhandledExceptionFilter detected (possible anti-debug);
  • At least one process apparently crashed during execution;
  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Creates RWX memory;
  • Guard pages use detected – possible anti-debugging.;
  • Dynamic (imported) function loading detected;
  • Reads data out of its own binary image;
  • Manipulates data from or to the Recycle Bin;
  • The binary likely contains encrypted or compressed data.;
  • Authenticode signature is invalid;
  • Uses Windows utilities for basic functionality;
  • Attempts to modify desktop wallpaper;
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
  • Exhibits possible ransomware file modification behavior;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the documents kept on the target’s disk drives — so the victim cannot use these documents;
  • Blocking the launching of .exe files of security tools
  • Blocking the launching of installation files of security tools

Ransomware has actually been a nightmare for the last 4 years. It is hard to imagine a more hazardous malware for both individuals and corporations. The algorithms used in Win32/Filecoder.NPJ (generally, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need more time than our galaxy already exists, and possibly will exist. But that malware does not do all these terrible things immediately – it may take up to a few hours to cipher all of your documents. Therefore, seeing the Win32/Filecoder.NPJ detection is a clear signal that you have to start the elimination process.

Where did I get the Win32/Filecoder.NPJ?

Typical ways of Win32/Filecoder.NPJ injection are basic for all other ransomware examples. Those are one-day landing sites where users are offered to download the free software, so-called bait emails and hacktools. Bait e-mails are a relatively new tactic in malware distribution – you receive the email that simulates some regular notifications about deliveries or bank service conditions modifications. Inside of the email, there is a malicious MS Office file, or a link which leads to the exploit landing page.

Malicious email spam

Malicious email message. This one tricks you to open the phishing website.

Preventing it looks quite uncomplicated, however, still requires a lot of awareness. Malware can hide in different spots, and it is far better to stop it even before it goes into your PC than to rely upon an anti-malware program. General cybersecurity knowledge is just an essential item in the modern world, even if your interaction with a PC remains on YouTube videos. That may keep you a great deal of time and money which you would spend while seeking a solution.

Win32/Filecoder.NPJ malware technical details

File Info:

name: 627914078AFB6E8601C9.mlw
path: /opt/CAPEv2/storage/binaries/b4ec9be8e93dd3f6f48db661592ad6a96ffde8827a7a30362eec06232d9b8da5
crc32: FD341637
md5: 627914078afb6e8601c91fc8552887bc
sha1: 7e149639e304024e895b2ce7a35a1626abf084f2
sha256: b4ec9be8e93dd3f6f48db661592ad6a96ffde8827a7a30362eec06232d9b8da5
sha512: 52dd6dcfc9d70c8d4fa47c589fc54d939277bcf2fc1989efb8830384b2bce2ebca4ad28c347e2339783f4c4d86edbade9c4a5d3487daa885310db5d7f61883b8
ssdeep: 49152:o0C8/tCdsXPZzy5ljatKM4ct5BzvX0bkUF5SQ2CgAY2AMrwZP4rDGjM+osrJJ+X:XMs/ZWfJMp/dMbXbSHAnAMrwsGQ+NA
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T18C16022439EA802EF073AF755FD476E6D95FBF332A0BABDD205103464622A40ED9163D
sha3_384: e6e6bd43fb540ecc326616af6d949c599419ee2531bad9a7f6a187eb51420f5419b3cab638932a5e32937401ba139cf3
ep_bytes: e894240000e989feffff8bff558bec51
timestamp: 2018-01-24 00:52:46

Version Info:

0: [No Data]

Win32/Filecoder.NPJ also known as:

BkavW32.AIDetect.malware2
LionicTrojan.Win32.Scar.mip4
Elasticmalicious (high confidence)
DrWebBackDoor.IRC.Bot.3240
MicroWorld-eScanGen:Heur.Mint.Zard.4
FireEyeGeneric.mg.627914078afb6e86
CAT-QuickHealTrojan.Diztakun.16490
ALYacTrojan.Ransom.XiaoBa
CylanceUnsafe
VIPREBehavesLike.Win32.Malware.eah (mx-v)
SangforTrojan.Win32.Save.a
K7AntiVirusTrojan ( 005610641 )
AlibabaTrojan:Win32/Filecoder.1d8af7a2
K7GWTrojan ( 005610641 )
Cybereasonmalicious.78afb6
BitDefenderThetaGen:NN.ZexaF.34114.@tW@aGKwQmk
SymantecML.Attribute.HighConfidence
ESET-NOD32Win32/Filecoder.NPJ
APEXMalicious
Paloaltogeneric.ml
ClamAVWin.Dropper.Tiggre-9845940-0
KasperskyTrojan-Ransom.Win32.Agent.abvm
BitDefenderGen:Heur.Mint.Zard.4
NANO-AntivirusTrojan.Win32.Graftor.exqocl
AvastWin32:Malware-gen
TencentWin32.Trojan.Raas.Auto
Ad-AwareGen:Heur.Mint.Zard.4
SophosGeneric ML PUA (PUA)
ComodoMalware@#cm4y5ehe9fse
ZillyaTrojan.Filecoder.Win32.7088
TrendMicroRansom_GENASOM.THBAFK
McAfee-GW-EditionBehavesLike.Win32.Generic.rc
EmsisoftGen:Heur.Mint.Zard.4 (B)
SentinelOneStatic AI – Malicious PE
GDataGen:Heur.Mint.Zard.4
JiangminTrojan.Agent.cxvr
WebrootW32.Malware.Gen
AviraTR/Agent.xxkgo
Antiy-AVLTrojan/Generic.ASMalwS.242A130
KingsoftWin32.Troj.Undef.(kcloud)
ArcabitTrojan.Mint.Zard.4
ViRobotTrojan.Win32.Z.Agent.4205056
MicrosoftRansom:MacOS/Filecoder
CynetMalicious (score: 100)
AhnLab-V3Trojan/Win32.Xiaransom.C2610362
McAfeeGenericRXFB-PV!627914078AFB
MAXmalware (ai score=99)
VBA32TrojanRansom.Genasom
TrendMicro-HouseCallRansom_GENASOM.THBAFK
RisingTrojan.Kryptik!1.B3E8 (CLASSIC)
YandexTrojan.Filecoder!NSOWMk2YT74
eGambitUnsafe.AI_Score_99%
FortinetW32/Agent.WP!tr
AVGWin32:Malware-gen
PandaTrj/GdSda.A
CrowdStrikewin/malicious_confidence_100% (W)
MaxSecureTrojan.Malware.300983.susgen

How to remove Win32/Filecoder.NPJ?

Win32/Filecoder.NPJ malware is very hard to remove by hand. It stores its data in a variety of places throughout the disk, and can restore itself from one of the elements. Additionally, a number of changes in the registry, networking configurations and Group Policies are pretty hard to identify and change to the original. It is much better to make use of a special program – exactly, an anti-malware tool. GridinSoft Anti-Malware will fit the most ideal for virus elimination purposes.

Why GridinSoft Anti-Malware? It is very light-weight and has its detection databases updated just about every hour. Additionally, it does not have such problems and exploits as Microsoft Defender does. The combination of these facts makes GridinSoft Anti-Malware suitable for clearing away malware of any kind.

Remove the viruses with GridinSoft Anti-Malware

  • Download and install GridinSoft Anti-Malware. After the installation, you will be offered to perform the Standard Scan. Approve this action.
  • Gridinsoft Anti-Malware during the scan process

  • Standard scan checks the logical disk where the system files are stored, together with the files of programs you have already installed. The scan lasts up to 6 minutes.
  • GridinSoft Anti-Malware scan results

  • When the scan is over, you may choose the action for each detected virus. For all files of [SHORT_NAME] the default option is “Delete”. Press “Apply” to finish the malware removal.
  • GridinSoft Anti-Malware - After Cleaning
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About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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