Win32/Filecoder.OFO

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

What is Win32/Filecoder.OFO infection?

In this short article you will discover about the definition of Win32/Filecoder.OFO and also its negative effect on your computer system. Such ransomware are a form of malware that is elaborated by online scams to demand paying the ransom money by a target.

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In the majority of the situations, Win32/Filecoder.OFO ransomware will instruct its targets to start funds transfer for the objective of reducing the effects of the modifications that the Trojan infection has presented to the target’s device.

Win32/Filecoder.OFO Summary

These modifications can be as follows:

  • 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
  • Exhibits possible ransomware file modification behavior;
  • Writes a potential ransom message to disk;
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Creates a copy of itself;
  • Ciphering the files located on the target’s hard disk — so the target can no more make use of the data;
  • Preventing regular access to the target’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.
Similar behavior
Related domains
z.whorecord.xyz Win32.Trojan-Ransom.Filecoder.696UDP@gen
a.tomx.xyz Win32.Trojan-Ransom.Filecoder.696UDP@gen

Win32/Filecoder.OFO

The most typical networks through which Win32/Filecoder.OFO Trojans are infused are:

  • By ways of phishing emails;
  • As an effect of customer ending up on a source that organizes a harmful software program;

As quickly as the Trojan is effectively infused, it will either cipher the information on the target’s computer or prevent the tool from working in a correct fashion – while additionally placing a ransom money note that mentions the demand for the sufferers to impact the payment for the objective of decrypting the records or bring back the documents system back to the preliminary condition. In the majority of instances, the ransom money note will certainly come up when the customer restarts the COMPUTER after the system has already been harmed.

Win32/Filecoder.OFO circulation channels.

In numerous edges of the globe, Win32/Filecoder.OFO grows by jumps as well as bounds. Nevertheless, the ransom money notes and also methods of extorting the ransom money quantity might vary depending on particular neighborhood (local) settings. The ransom money notes as well as methods of extorting the ransom money amount may differ depending on certain neighborhood (regional) setups.

Ransomware injection

For instance:

    Faulty informs regarding unlicensed software application.

    In particular locations, the Trojans usually wrongfully report having identified some unlicensed applications made it possible for on the sufferer’s gadget. The sharp after that requires the customer to pay the ransom.

    Faulty statements concerning prohibited material.

    In countries where software piracy is less preferred, this approach is not as efficient for the cyber fraudulences. Alternatively, the Win32/Filecoder.OFO popup alert may wrongly claim to be deriving from a law enforcement institution and will certainly report having situated child porn or other prohibited information on the tool.

    Win32/Filecoder.OFO popup alert might falsely declare to be obtaining from a regulation enforcement establishment as well as will report having situated child pornography or other prohibited data on the tool. The alert will similarly consist of a requirement for the individual to pay the ransom money.

Technical details

File Info:

crc32: 822E4A74
md5: 6698d98580bcd7116ed0aed5f9ee57f8
name: 6698D98580BCD7116ED0AED5F9EE57F8.mlw
sha1: f3b8113dec0f85a5d967b9ae1070162e62f47182
sha256: fe48b260cfdc41f45fb961eeb1694361cdbe0a09e76e2fea8c310147cf7a62ba
sha512: 66157107df95e2fab9e05d71fa3ba9176346895e9ce09cbe65dbbba3c154e7a02b0089d881f4be19e4bc73c161e062a4482ec95c4849b4bc9da3e4e65c93a4f7
ssdeep: 1536:jZpJXviyjIBilE0ST1z+DA93nSxUo2fSv8CgYtuw:j9viyjINh4URKv
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Filecoder.OFO also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
FireEye Generic.mg.6698d98580bcd711
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
Cybereason malicious.dec0f8
BitDefenderTheta Gen:NN.ZexaF.34590.eeW@aW4X@xe
APEX Malicious
Paloalto generic.ml
Kaspersky HEUR:Trojan.Win32.Generic
NANO-Antivirus Trojan.Win32.Filecoder.ikonzc
Rising Malware.Heuristic!ET#85% (RDMK:cmRtazquSlDKZeShjY0SMQySzgIQ)
F-Secure Trojan.TR/Crypt.ZPACK.Gen
McAfee-GW-Edition BehavesLike.Win32.Infected.lm
Sophos ML/PE-A + Mal/Behav-031
Jiangmin Trojan.Generic.gtria
Avira TR/Crypt.ZPACK.Gen
Microsoft Trojan:Win32/Glupteba!ml
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Win32.Trojan-Ransom.Filecoder.696UDP@gen
Cynet Malicious (score: 100)
AhnLab-V3 Malware/Gen.Reputation.C4340938
Acronis suspicious
McAfee GenericRXNS-UC!6698D98580BC
VBA32 BScope.TrojanRansom.Crypren
Malwarebytes Trojan.FileLocker
Panda Trj/GdSda.A
ESET-NOD32 a variant of Win32/Filecoder.OFO
SentinelOne Static AI – Malicious PE
Fortinet W32/Filecoder.OFO!tr.ransom
AVG Win32:Trojan-gen
Avast Win32:Trojan-gen
Qihoo-360 Win32/Trojan.e6d

How to remove Win32/Filecoder.OFO ransomware?

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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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.

GridinSoft Anti-Malware Setup

Press “Install” button.

GridinSoft Anti-Malware Install

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.OFO 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.OFO 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/comparison

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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