Win32/Filecoder.FS

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

What is Win32/Filecoder.FS infection?

In this article you will certainly locate concerning the meaning of Win32/Filecoder.FS and its negative impact on your computer. Such ransomware are a type of malware that is clarified by on the internet scams to demand paying the ransom by a target.

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In the majority of the cases, Win32/Filecoder.FS ransomware will instruct its victims to launch funds move for the objective of reducing the effects of the modifications that the Trojan infection has presented to the target’s tool.

Win32/Filecoder.FS Summary

These adjustments can be as complies with:

  • Possible date expiration check, exits too soon after checking local time;
  • A process attempted to delay the analysis task.;
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • Uses Windows utilities for basic functionality;
  • Attempts to delete volume shadow copies;
  • Modifies boot configuration settings;
  • 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
  • Writes a potential ransom message to disk;
  • Creates a hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
  • Detects Joe or Anubis Sandboxes through the presence of a file;
  • Checks the presence of disk drives in the registry, possibly for anti-virtualization;
  • Clears Windows events or logs;
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the documents located on the target’s hard disk — so the target can no more utilize the data;
  • Preventing regular accessibility to the target’s workstation;
Similar behavior
Related domains
z.whorecord.xyzDeepScan:Generic.Ransom.Amnesia.FF8EDA42
a.tomx.xyzDeepScan:Generic.Ransom.Amnesia.FF8EDA42

Win32/Filecoder.FS

The most regular networks where Win32/Filecoder.FS Ransomware Trojans are injected are:

  • By means of phishing emails;
  • As a repercussion of user ending up on a resource that hosts a malicious software application;

As soon as the Trojan is effectively infused, it will either cipher the information on the victim’s PC or protect against the tool from operating in an appropriate manner – while likewise positioning a ransom money note that points out the requirement for the sufferers to effect the repayment for the purpose of decrypting the records or bring back the documents system back to the initial problem. In most circumstances, the ransom money note will turn up when the customer restarts the PC after the system has already been damaged.

Win32/Filecoder.FS circulation channels.

In various edges of the world, Win32/Filecoder.FS expands by jumps and also bounds. Nevertheless, the ransom notes and also techniques of extorting the ransom money quantity might vary relying on particular local (local) settings. The ransom notes and also methods of obtaining the ransom quantity may differ depending on particular regional (local) setups.

Ransomware injection

For instance:

    Faulty alerts regarding unlicensed software program.

    In particular areas, the Trojans typically wrongfully report having actually detected some unlicensed applications allowed on the target’s tool. The alert then demands the user to pay the ransom money.

    Faulty statements about illegal material.

    In nations where software program piracy is much less preferred, this approach is not as effective for the cyber frauds. Alternatively, the Win32/Filecoder.FS popup alert might falsely claim to be deriving from a police organization and also will certainly report having located child pornography or other unlawful information on the tool.

    Win32/Filecoder.FS popup alert might wrongly claim to be obtaining from a legislation enforcement organization and also will report having situated youngster porn or other illegal data on the tool. The alert will in a similar way include a need for the individual to pay the ransom money.

Technical details

File Info:

crc32: DE82A1B5
md5: 0da14b37d55c7542bd4a567b01e05c7f
name: 0DA14B37D55C7542BD4A567B01E05C7F.mlw
sha1: d583285237e706907cf6c69438518ba70410017b
sha256: b5a9081f4a17be5918d5e3f93ce8c7cc6ae72e198b92067c4dcaa797d25e50ff
sha512: 2801459ecca288e626f335871ad3ed6a395ba71ff1c5947e6def2e349073f04c512073ecc8bf0e42aad6270a312b695ecf81e54f1b625478d4bea2f7893f9fee
ssdeep: 3072:pYpoi+QvG5EiigZBFuXLWkB+k62aW62amug62aW62amu4OA62aW62amu4OYuIsw:+poq+Ei3u7Ww+VB
type: PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows

Version Info:

0: [No Data]

Win32/Filecoder.FS also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
Elasticmalicious (high confidence)
DrWebWIN.WORM.Virus
MicroWorld-eScanDeepScan:Generic.Ransom.Amnesia.FF8EDA42
FireEyeGeneric.mg.0da14b37d55c7542
McAfeeRansom-Amnesia!0DA14B37D55C
CylanceUnsafe
VIPREFraudTool.Win32.SecurityShield.ek!c (v)
SangforTrojan.Win32.Save.a
BitDefenderDeepScan:Generic.Ransom.Amnesia.FF8EDA42
Cybereasonmalicious.7d55c7
BitDefenderThetaAI:Packer.2B0F0C421F
SymantecML.Attribute.HighConfidence
APEXMalicious
AvastWin32:Dh-A [Heur]
ClamAVWin.Ransomware.Scarab-6336012-1
KasperskyHEUR:Trojan-Ransom.Win32.Generic
NANO-AntivirusTrojan.Win32.Filecoder.epnvsc
RisingMalware.Heuristic!ET#100% (RDMK:cmRtazrQYVumRzE5lAwJ+ODwtjqL)
Ad-AwareDeepScan:Generic.Ransom.Amnesia.FF8EDA42
EmsisoftDeepScan:Generic.Ransom.Amnesia.FF8EDA42 (B)
ComodoTrojWare.Win32.TrojanDownloader.Delf.gen@1xqow5
F-SecureDropper.DR/Delphi.Gen7
TrendMicroMal_Purge
McAfee-GW-EditionBehavesLike.Win32.Sytro.ch
SophosML/PE-A + Mal/DelpDldr-F
IkarusTrojan.Win32.Lnkhyd
JiangminTrojan.Generic.bmcfs
AviraDR/Delphi.Gen7
Antiy-AVLTrojan[Ransom]/Win32.Blocker
MicrosoftRansom:Win32/Amnesia.VSB!MTB
ArcabitDeepScan:Generic.Ransom.Amnesia.FF8EDA42
ZoneAlarmHEUR:Trojan-Ransom.Win32.Generic
GDataDeepScan:Generic.Ransom.Amnesia.FF8EDA42
CynetMalicious (score: 100)
AhnLab-V3Malware/Win32.Generic.C4294864
Acronissuspicious
VBA32BScope.TrojanRansom.Kitoles
ALYacDeepScan:Generic.Ransom.Amnesia.FF8EDA42
MAXmalware (ai score=84)
MalwarebytesMalware.Heuristic.1006
PandaTrj/Genetic.gen
ESET-NOD32a variant of Win32/Filecoder.FS
TrendMicro-HouseCallMal_Purge
YandexTrojan.GenAsa!Dy18OPPLTiI
SentinelOneStatic AI – Malicious PE
eGambitUnsafe.AI_Score_99%
FortinetW32/Filecoder.FS!tr
AVGWin32:Dh-A [Heur]
CrowdStrikewin/malicious_confidence_100% (D)
Qihoo-360HEUR/QVM05.1.A270.Malware.Gen

How to remove Win32/Filecoder.FS ransomware?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
Reasons why I would recommend GridinSoft1

There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft2.

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.FS 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.FS 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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