Win32/Filecoder.OJC

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Spectating the Win32/Filecoder.OJC detection means that your PC is in big danger. This malware can correctly be named as ransomware – sort of malware which ciphers your files and asks you to pay for their decryption. Stopping it requires some specific steps that must be taken as soon as possible.
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Win32/Filecoder.OJC detection is a malware detection you can spectate in your computer. It usually appears after the preliminary activities on your PC – opening the suspicious e-mail messages, clicking the banner in the Web or setting up the program from untrustworthy resources. From the moment it appears, you have a short time to take action before it begins its destructive activity. And be sure – it is better not to wait for these destructive actions.

What is Win32/Filecoder.OJC virus?

Win32/Filecoder.OJC 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 virus also does a ton of damage to your system. It changes the networking setups in order to prevent you from checking out the elimination guidelines or downloading the antivirus. In rare cases, Win32/Filecoder.OJC can even stop the setup of anti-malware programs.

Win32/Filecoder.OJC Summary

Summarizingly, Win32/Filecoder.OJC ransomware actions in the infected PC are next:

  • SetUnhandledExceptionFilter detected (possible anti-debug);
  • Possible date expiration check, exits too soon after checking local time;
  • Dynamic (imported) function loading detected;
  • Enumerates running processes;
  • Manipulates data from or to the Recycle Bin;
  • A process created a hidden window;
  • Authenticode signature is invalid;
  • Uses Windows utilities for basic functionality;
  • Attempts to delete or modify volume shadow copies;
  • Writes a potential ransom message to disk;
  • Modifies boot configuration settings;
  • Uses suspicious command line tools or Windows utilities;
  • Encrypting the documents kept on the victim’s disk drive — so the victim cannot check these documents;
  • Blocking the launching of .exe files of security tools
  • Blocking the launching of installation files of anti-malware apps

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

Where did I get the Win32/Filecoder.OJC?

General methods of Win32/Filecoder.OJC injection are standard for all other ransomware examples. Those are one-day landing sites where users are offered to download and install the free program, so-called bait e-mails and hacktools. Bait e-mails are a quite new method in malware distribution – you receive the email that simulates some normal notifications about shippings or bank service conditions changes. Inside of the email, there is an infected MS Office file, or a web link which opens the exploit landing site.

Malicious email spam

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

Avoiding it looks pretty uncomplicated, however, still needs a lot of awareness. Malware can hide in different places, and it is better to stop it even before it gets into your computer than to rely upon an anti-malware program. Essential cybersecurity knowledge is just an essential thing in the modern world, even if your interaction with a PC remains on YouTube videos. That can keep you a lot of money and time which you would spend while looking for a solution.

Win32/Filecoder.OJC malware technical details

File Info:

name: 1F6297D8F742CB578BFA.mlw
path: /opt/CAPEv2/storage/binaries/3f843cbffeba010445dae2b171caaa99c6b56360de5407da71210d007fe26673
crc32: 67F81439
md5: 1f6297d8f742cb578bfa59735120326b
sha1: ff6eca213cad5c2a139fc0dc0dc6a8e6d3df7b17
sha256: 3f843cbffeba010445dae2b171caaa99c6b56360de5407da71210d007fe26673
sha512: f9ade063be2ae5861248472aff857b2e0506d4705ff779972ade7482bb7797521338dd9a842f048d5ba1697719b22a3ba596370c37f4352a2527dbe1997edfd1
ssdeep: 3072:AJ+vDJMMKvaJw4N7JPohaNviHZoJ8J58:AIDmMKCJwc7JPoYNvf
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1B4D3AE29B6E0C2B2C09716305D78DBB15EBEF8315A35D557B7844B2E2E342C0DA3A793
sha3_384: 5d0f2601eab2a443507b25999ad1d7b349841d97441713c9615c413e47b14a7711aa73d05bb1df5b76597ee84c5d3db3
ep_bytes: e802560000e978feffffcccccc8bff55
timestamp: 2022-01-15 09:20:24

Version Info:

0: [No Data]

Win32/Filecoder.OJC also known as:

BkavW32.AIDetect.malware2
LionicTrojan.Win32.Generic.j!c
Elasticmalicious (high confidence)
CynetMalicious (score: 100)
ALYacTrojan.Ransom.Filecoder
CylanceUnsafe
SangforRansom.Win32.Agent.gen
CrowdStrikewin/malicious_confidence_100% (W)
BitDefenderGen:Heur.Ransom.REntS.Gen.1
K7GWTrojan ( 0058a1721 )
K7AntiVirusTrojan ( 0058a1721 )
SymantecDownloader
ESET-NOD32a variant of Win32/Filecoder.OJC
APEXMalicious
Paloaltogeneric.ml
KasperskyHEUR:Trojan-Ransom.Win32.Generic
AlibabaRansom:Win32/generic.ali2000010
MicroWorld-eScanGen:Heur.Ransom.REntS.Gen.1
TencentWin32.Trojan.Filecoder.Eaxm
Ad-AwareGen:Heur.Ransom.REntS.Gen.1
EmsisoftGen:Heur.Ransom.REntS.Gen.1 (B)
F-SecureTrojan.TR/FileCoder.qwktu
DrWebTrojan.MulDrop19.15312
ZillyaTrojan.Filecoder.Win32.22132
TrendMicroRansom.Win32.NEWEXPLOIT.THBOBBB
McAfee-GW-EditionBehavesLike.Win32.Generic.ch
FireEyeGeneric.mg.1f6297d8f742cb57
SophosMal/Generic-S
SentinelOneStatic AI – Malicious PE
AviraTR/FileCoder.qwktu
Antiy-AVLTrojan/Generic.ASCommon.15B
MicrosoftRansom:Win32/GarrantDecrypt.PA!MTB
ArcabitTrojan.Ransom.REntS.Gen.1
ZoneAlarmHEUR:Trojan-Ransom.Win32.Generic
GDataGen:Heur.Ransom.REntS.Gen.1
TACHYONRansom/W32.Exploit.130048
AhnLab-V3Ransomware/Win.GarrantDecrypt.C4763520
McAfeeGenericRXRE-KO!1F6297D8F742
MAXmalware (ai score=82)
VBA32BScope.Trojan.DelShad
MalwarebytesRansom.FileLocker
PandaTrj/GdSda.A
TrendMicro-HouseCallRansom.Win32.NEWEXPLOIT.THBOBBB
RisingRansom.Outsider!1.D74B (CLOUD)
IkarusTrojan-Ransom.FileCrypter
MaxSecureTrojan.Malware.10307848.susgen
FortinetW32/Filecoder.D181!tr.ransom
BitDefenderThetaGen:NN.ZexaF.34212.huW@aSP!Dkfi
AVGWin32:Malware-gen
AvastWin32:Malware-gen

How to remove Win32/Filecoder.OJC?

Win32/Filecoder.OJC malware is extremely difficult to remove manually. It places its files in several locations throughout the disk, and can recover itself from one of the elements. Furthermore, a lot of changes in the registry, networking configurations and also Group Policies are quite hard to find and change to the original. It is far better to utilize a specific program – exactly, an anti-malware program. GridinSoft Anti-Malware will definitely fit the most ideal for virus removal reasons.

Why GridinSoft Anti-Malware? It is pretty lightweight and has its databases updated just about every hour. Moreover, it does not have such bugs and vulnerabilities as Microsoft Defender does. The combination of these details makes GridinSoft Anti-Malware suitable for getting rid of malware of any form.

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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