Written by Robert Bailey

What is Win32/Filecoder.OBQ infection?

In this article you will locate about the interpretation of Win32/Filecoder.OBQ and also its negative effect on your computer system. Such ransomware are a kind of malware that is elaborated by online fraudulences to demand paying the ransom by a victim.

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Most of the situations, Win32/Filecoder.OBQ ransomware will certainly instruct its targets to launch funds transfer for the function of counteracting the modifications that the Trojan infection has actually presented to the target’s device.

Win32/Filecoder.OBQ Summary

These modifications can be as follows:

  • Reads data out of its own binary image;
  • A process created a hidden window;
  • The binary likely contains encrypted or compressed data.;
  • Executed a very long command line or script command which may be indicative of chained commands or obfuscation;
  • Uses Windows utilities for basic functionality;
  • Likely installs a bootkit via raw harddisk modifications;
  • Crashed cuckoomon during analysis. Report this error to the Github repo.;
  • Installs itself for autorun at Windows startup;
  • Writes a potential ransom message to disk;
  • Creates a hidden or system file;
  • Creates a copy of itself;
  • Anomalous binary characteristics;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the files located on the sufferer’s hard drive — so the sufferer can no longer make use of the data;
  • Preventing regular accessibility to the target’s workstation;

Related domains: HEUR:Trojan-Ransom.Win32.Generic


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

  • By means of phishing e-mails;
  • As an effect of customer ending up on a resource that organizes a destructive software program;

As soon as the Trojan is successfully injected, it will either cipher the data on the victim’s PC or protect against the device from working in a proper manner – while likewise placing a ransom money note that points out the requirement for the targets to effect the payment for the purpose of decrypting the papers or recovering the documents system back to the preliminary condition. In many circumstances, the ransom note will certainly come up when the client restarts the PC after the system has currently been harmed.

Win32/Filecoder.OBQ circulation networks.

In different edges of the globe, Win32/Filecoder.OBQ grows by jumps and also bounds. Nevertheless, the ransom notes and methods of obtaining the ransom money amount may differ relying on particular neighborhood (local) settings. The ransom money notes and tricks of obtaining the ransom money quantity may vary depending on particular regional (local) settings.

Ransomware injection

For example:

    Faulty notifies about unlicensed software application.

    In certain areas, the Trojans typically wrongfully report having found some unlicensed applications allowed on the victim’s gadget. The sharp after that requires the user to pay the ransom money.

    Faulty declarations regarding illegal material.

    In nations where software piracy is much less preferred, this approach is not as reliable for the cyber scams. Additionally, the Win32/Filecoder.OBQ popup alert might wrongly claim to be originating from a police establishment and also will report having located child pornography or other prohibited data on the gadget.

    Win32/Filecoder.OBQ popup alert may falsely assert to be acquiring from a legislation enforcement organization and will certainly report having located child porn or various other prohibited information on the gadget. The alert will likewise contain a requirement for the individual to pay the ransom.

Technical details

File Info:

crc32: 8B91BFCA
md5: b1d5fa052b08b10570ecbd7b8f51059c
name: B1D5FA052B08B10570ECBD7B8F51059C.mlw
sha1: c7a16493be181dbe5ec8d993883bbc1759d22131
sha256: 65524db4cc14954481961341c72aa8cf00f78144915cd9eb357c99c3ab669b52
sha512: f6b1717382b5a67590f3ba6e96bb25343fde26a63b1783408adcb6f996a131354ce9f3f8b1d3f978b7a0fea0f96334e9aa0fad645b678b7f746d918a17128ff3
ssdeep: 3072:534zvaoAt6vnt5pmXUQ3wADD44vc9l4+wBp831c+DGfTd3zHZ0DELbTC:AFmXUQgAU39ypg16V50DErC
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Filecoder.OBQ also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 00564d931 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.33303
Cynet Malicious (score: 100)
ALYac Gen:Variant.Ulise.235035
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_80% (W)
K7GW Trojan ( 00564d931 )
Cybereason malicious.52b08b
Cyren W32/Trojan.XXKD-2768
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Filecoder.OBQ
APEX Malicious
Avast Win32:MalwareX-gen [Trj]
Kaspersky HEUR:Trojan-Ransom.Win32.Generic
BitDefender Trojan.Generic.31148369
NANO-Antivirus Virus.Win32.Gen.ccmw
ViRobot Trojan.Win32.Z.Filecoder.139776
MicroWorld-eScan Trojan.Generic.31148369
Tencent Win32.Trojan.Filecoder.Pfsv
Ad-Aware Trojan.Generic.31148369
Sophos ML/PE-A + Mal/Emogen-Y
BitDefenderTheta AI:Packer.0E4EC79D1F
TrendMicro Ransom.Win32.VENUS.SM
Emsisoft Trojan.Generic.31148369 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Generic.hcvkx
Avira TR/Crypt.XPACK.Gen
eGambit Unsafe.AI_Score_90%
Microsoft Trojan:Win32/Sabsik.FL.B!ml
Arcabit Trojan.Ulise.D3961B
ZoneAlarm HEUR:Trojan-Ransom.Win32.Generic
GData Trojan.Generic.31148369
AhnLab-V3 Trojan/Win.Generic.C4474325
Acronis suspicious
McAfee RDN/Ransom
MAX malware (ai score=82)
VBA32 BScope.TrojanDropper.Daws
Panda Trj/GdSda.A
Rising Trojan.Generic@ML.94 (RDML:0YSwf1R4CSnUT2Q5poiR6w)
Ikarus Trojan-Ransom.FileCrypter
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Filecoder.OBQ!tr
AVG Win32:MalwareX-gen [Trj]

How to remove Win32/Filecoder.OBQ 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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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.OBQ 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.OBQ you can always ask me in the comments for getting help.

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  1. GridinSoft Anti-Malware Review from HowToFix site:
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About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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