Win32/Filecoder.OOJ

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

Seeing the Win32/Filecoder.OOJ malware detection usually means that your computer is in big danger. This computer virus can correctly be identified as ransomware – type of malware which ciphers your files and forces you to pay for their decryption. Removing it requires some unusual steps that must be taken as soon as possible.

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Win32/Filecoder.OOJ detection is a malware detection you can spectate in your computer. It frequently appears after the preliminary procedures on your PC – opening the suspicious email, clicking the banner in the Web or setting up the program from suspicious resources. From the moment it appears, you have a short time to take action until it begins its destructive activity. And be sure – it is much better not to wait for these malicious effects.

What is Win32/Filecoder.OOJ virus?

Win32/Filecoder.OOJ is ransomware-type malware. It looks for the files on your disk, encrypts it, and then asks you to pay the ransom for receiving the decryption key. Besides making your files inaccessible, this malware also does a lot of harm to your system. It changes the networking settings in order to avoid you from reading the elimination articles or downloading the antivirus. In rare cases, Win32/Filecoder.OOJ can even stop the setup of anti-malware programs.

Win32/Filecoder.OOJ Summary

Summarizingly, Win32/Filecoder.OOJ malware actions in the infected system are next:

  • The binary contains an unknown PE section name indicative of packing;
  • Authenticode signature is invalid;
  • Checks for the presence of known devices from debuggers and forensic tools;
  • Checks for the presence of known devices from debuggers and forensic tools;
  • Harvests cookies for information gathering;
  • Ciphering the files kept on the target’s disk — so the victim cannot use these files;
  • Blocking the launching of .exe files of anti-malware apps
  • Blocking the launching of installation files of anti-malware apps

Ransomware has actually been a headache for the last 4 years. It is hard to realize a more harmful virus for both individuals and businesses. The algorithms utilized in Win32/Filecoder.OOJ (generally, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need to have a lot more time than our galaxy already exists, and possibly will exist. But that virus does not do all these horrible things immediately – it may take up to a few hours to cipher all of your documents. Hence, seeing the Win32/Filecoder.OOJ detection is a clear signal that you must start the removal procedure.

Where did I get the Win32/Filecoder.OOJ?

Standard methods of Win32/Filecoder.OOJ distribution are common for all other ransomware examples. Those are one-day landing sites where victims are offered to download and install the free software, so-called bait emails and hacktools. Bait emails are a relatively new strategy in malware spreading – you receive the email that imitates some standard notifications about shippings or bank service conditions updates. Within the email, there is an infected MS Office file, or a link which leads to the exploit landing site.

Malicious email spam

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

Preventing it looks pretty uncomplicated, but still needs a lot of focus. Malware can hide in various spots, and it is much better to prevent it even before it gets into your PC than to trust in an anti-malware program. General cybersecurity awareness is just an essential item in the modern-day world, even if your interaction with a PC remains on YouTube videos. That may save you a great deal of money and time which you would certainly spend while seeking a fix guide.

Win32/Filecoder.OOJ malware technical details

File Info:

name: AC649E8AFF6E5868A5A6.mlw
path: /opt/CAPEv2/storage/binaries/382d800483b2427b86d932e7ed9a7481035e5c53722a38af1f1461e0cb4617f3
crc32: A5D4C41B
md5: ac649e8aff6e5868a5a6f1e78e5c8a74
sha1: 7ec0962523bf95ab044c389dabb0dd0bbf4346ee
sha256: 382d800483b2427b86d932e7ed9a7481035e5c53722a38af1f1461e0cb4617f3
sha512: f9cb7edda10814d4900f3d78a44e5a53f7309498bf2f3206c402012fb087d23427a08074379f8f855502d20b5365ee932f07267befc49181975be00111906171
ssdeep: 24576:nv0LJC1SquGBz8GOnrELkGriyQshm5BWSBjSP1x+DfQm29E/sCMdivF+9:nYJOJoMg6m5ISdSPyQmfsCMdIF+9
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T11BA55C23B248653FC46F1A39566796649C3FBB21760B8C5F9BF4484CCE352402B3E66B
sha3_384: b7698b9a8adc1c3bc73600239577262460cfafbc362de6453f3bf787ca6ba5b3990479662b343473369b323104e7e911
ep_bytes: 558bec83c4f0b860c95b00e8309ce4ff
timestamp: 2018-01-31 01:59:57

Version Info:

FileVersion: 1.0.0.0
ProductVersion: 1.0.0.0
Translation: 0x0409 0x04e4

Win32/Filecoder.OOJ also known as:

LionicTrojan.Win32.Gen.4!c
McAfeeArtemis!AC649E8AFF6E
SangforTrojan.Win32.Agent.V7rc
K7AntiVirusTrojan ( 005a88881 )
AlibabaRansom:Win32/Filecoder.30b96f0c
K7GWTrojan ( 005a88881 )
CrowdStrikewin/grayware_confidence_60% (W)
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of Win32/Filecoder.OOJ
APEXMalicious
CynetMalicious (score: 99)
KasperskyTrojan-Ransom.Win32.Gen.hga
AvastFileRepMalware [Inf]
TencentMalware.Win32.Gencirc.115517d7
F-SecureTrojan.TR/AD.Nekark.jghji
McAfee-GW-EditionBehavesLike.Win32.ObfuscatedPoly.vh
Trapminemalicious.moderate.ml.score
SophosMal/Generic-S
GDataWin32.Trojan.Agent.Z5HCXV
AviraTR/AD.Nekark.jghji
Antiy-AVLTrojan[Ransom]/Win32.Gen
ZoneAlarmTrojan-Ransom.Win32.Gen.hga
MicrosoftProgram:Win32/Wacapew.C!ml
BitDefenderThetaAI:Packer.B91F400916
VBA32Win32.Trojan.Cryptor.Heur
Cylanceunsafe
RisingTrojan.Generic@AI.100 (RDML:E0e4Ou7tFitiBTbGCXHkMQ)
IkarusPUA.DealPly
MaxSecureTrojan.Malware.300983.susgen
FortinetMalicious_Behavior.SB
AVGFileRepMalware [Inf]
DeepInstinctMALICIOUS

How to remove Win32/Filecoder.OOJ?

Win32/Filecoder.OOJ malware is extremely hard to eliminate by hand. It places its documents in numerous places throughout the disk, and can restore itself from one of the elements. Furthermore, a number of modifications in the registry, networking configurations and also Group Policies are quite hard to find and revert to the initial. It is far better to utilize a special app – exactly, an anti-malware app. GridinSoft Anti-Malware will fit the best for virus elimination reasons.

Why GridinSoft Anti-Malware? It is very light-weight and has its databases updated just about every hour. Additionally, it does not have such bugs and vulnerabilities as Microsoft Defender does. The combination of these aspects makes GridinSoft Anti-Malware suitable for eliminating 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.
  • Win32/Filecoder.OOJ in 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.
  • Win32/Filecoder.OOJ in the 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.
  • [SHORT_NAME] - 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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