Win32/Filecoder.OJJ

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

Win32/Filecoder.OJJ detection is a virus detection you can spectate in your system. It frequently shows up after the provoking actions on your PC – opening the dubious email messages, clicking the banner in the Internet or installing the program from unreliable resources. From the moment it appears, you have a short time to do something about it before it begins its harmful action. And be sure – it is much better not to wait for these destructive effects.

What is Win32/Filecoder.OJJ virus?

Win32/Filecoder.OJJ is ransomware-type malware. It searches for the files on your computer, encrypts it, and after that asks you to pay the ransom for getting the decryption key. Besides making your files locked, this malware additionally does a ton of harm to your system. It alters the networking settings in order to prevent you from reading the elimination guides or downloading the anti-malware program. In rare cases, Win32/Filecoder.OJJ can even stop the launching of anti-malware programs.

Win32/Filecoder.OJJ Summary

In summary, Win32/Filecoder.OJJ malware activities in the infected system are next:

  • SetUnhandledExceptionFilter detected (possible anti-debug);
  • Dynamic (imported) function loading detected;
  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Creates RWX memory;
  • Authenticode signature is invalid;
  • Steals private information from local Internet browsers;
  • Installs itself for autorun at Windows startup;
  • Exhibits possible ransomware file modification behavior;
  • Harvests cookies for information gathering;
  • Ciphering the documents located on the victim’s drives — so the victim cannot check these documents;
  • Blocking the launching of .exe files of security tools
  • Blocking the launching of installation files of anti-virus programs

Ransomware has been a horror story for the last 4 years. It is difficult to imagine a more harmful malware for both individual users and corporations. The algorithms utilized in Win32/Filecoder.OJJ (usually, 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 currently exists, and possibly will exist. However, that malware does not do all these horrible things immediately – it may require up to a few hours to cipher all of your files. Hence, seeing the Win32/Filecoder.OJJ detection is a clear signal that you must start the removal process.

Where did I get the Win32/Filecoder.OJJ?

Standard ways of Win32/Filecoder.OJJ distribution are standard for all other ransomware variants. Those are one-day landing web pages where users are offered to download and install the free program, so-called bait e-mails and hacktools. Bait e-mails are a pretty new tactic in malware distribution – you receive the e-mail that simulates some normal notifications about shippings or bank service conditions modifications. Within the email, there is an infected MS Office file, or a web link which leads to the exploit landing page.

Malicious email spam

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

Avoiding it looks fairly simple, however, still needs tons of recognition. Malware can hide in different spots, and it is much better to prevent it even before it gets into your computer than to rely upon an anti-malware program. Common cybersecurity awareness is just an important thing in the modern-day world, even if your relationship with a computer remains on YouTube videos. That can save you a lot of time and money which you would certainly spend while trying to find a fixing guide.

Win32/Filecoder.OJJ malware technical details

File Info:

name: 4A2C7295771216A38836.mlwpath: /opt/CAPEv2/storage/binaries/c3e2744b2214c3671416bbd4014d9647307a51e88950268be225be32ed672ca9crc32: E97833D2md5: 4a2c7295771216a38836758181eb0ac6sha1: d197da3c3966469ed7488d09bbfbc0098b0a337asha256: c3e2744b2214c3671416bbd4014d9647307a51e88950268be225be32ed672ca9sha512: e28bc8a22dedcd5bdb0f5ce0a807db31e79cd1870efafbb7ad19a4f6723699ae1e11ddb1262754d285608b05b9121c242e4cc976e319ebbbd850715bac2832a9ssdeep: 3072:P3MBAlklXz5rpvMxfGYCb/Vh5kl84ssrFSIW9:P3MXXzNKl82FQ9type: PE32 executable (console) Intel 80386, for MS Windowstlsh: T165F37C4CEE4798F2EA23B0B65ECEE77B41346B028961FEB6FF4D4A5078337511624246sha3_384: b0a7bfd85df18c9a6d96510e1e947f61dc26ef0515970ba5de840ba41d9bb15f422bea170ae081410136d365f540f741ep_bytes: c7059820430000000000e9a1fcffff90timestamp: 2021-12-03 21:27:14

Version Info:

0: [No Data]

Win32/Filecoder.OJJ also known as:

Lionic Trojan.Win32.Encoder.j!c
MicroWorld-eScan Gen:Variant.Jaik.48000
FireEye Gen:Variant.Jaik.48000
CAT-QuickHeal Trojanransom.Encoder
ALYac Gen:Variant.Jaik.48000
Cylance Unsafe
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Trojan:Win32/Filecoder.0a46aba6
K7GW Trojan ( 0058b2641 )
K7AntiVirus Trojan ( 0058b2641 )
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Filecoder.OJJ
Paloalto generic.ml
Kaspersky Trojan-Ransom.Win32.Encoder.ood
BitDefender Gen:Variant.Jaik.48000
Avast Win32:Trojan-gen
Ad-Aware Gen:Variant.Jaik.48000
TrendMicro Ransom_Encoder.R067C0WL921
McAfee-GW-Edition GenericRXRB-JR!4A2C72957712
Emsisoft Gen:Variant.Jaik.48000 (B)
Jiangmin Trojan.Encoder.anz
Webroot W32.Trojan.Gen
Avira TR/FileCoder.ocncj
MAX malware (ai score=80)
Antiy-AVL Trojan/Generic.ASMalwS.34E5956
Microsoft Trojan:Win32/Sabsik.TE.B!ml
ViRobot Trojan.Win32.Z.Filecoder.160256
GData Gen:Variant.Jaik.48000
Cynet Malicious (score: 99)
AhnLab-V3 Trojan/Win.Generic.R456478
McAfee GenericRXRB-JR!4A2C72957712
VBA32 BScope.Trojan.Meterpreter
TrendMicro-HouseCall Ransom_Encoder.R067C0WL921
Tencent Win32.Trojan.Filecoder.Pcjc
Ikarus Trojan-Ransom.FileCrypter
Fortinet W32/Filecoder.OJJ!tr
AVG Win32:Trojan-gen
Panda Trj/GdSda.A

How to remove Win32/Filecoder.OJJ?

About the author

Robert Bailey

Security engineer focused on malware behavior, removal workflows, and Windows hardening. Robert reviews threat articles for practical accuracy, checking detection names, symptoms, and cleanup steps before publication.

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