What is Win32/Qhost.OFS infection?

In this article you will certainly find about the definition of Win32/Qhost.OFS as well as its adverse impact on your computer system. Such ransomware are a form of malware that is elaborated by online scams to demand paying the ransom by a sufferer.

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In the majority of the cases, Win32/Qhost.OFS ransomware will instruct its victims to start funds transfer for the function of reducing the effects of the amendments that the Trojan infection has actually introduced to the victim’s gadget.

Win32/Qhost.OFS Summary

These alterations can be as complies with:

  • Executable code extraction. Cybercriminals often use binary packers to hinder the malicious code from reverse-engineered by malware analysts. A packer is a tool that compresses, encrypts, and modifies a malicious file’s format. Sometimes packers can be used for legitimate ends, for example, to protect a program against cracking or copying.
  • 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
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents located on the sufferer’s hard drive — so the target can no more use the data;
  • Preventing normal access to the victim’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.


The most normal networks where Win32/Qhost.OFS Trojans are injected are:

  • By means of phishing e-mails;
  • As a repercussion of user winding up on a resource that organizes a destructive software program;

As quickly as the Trojan is efficiently infused, it will either cipher the information on the target’s computer or prevent the gadget from functioning in an appropriate way – while likewise placing a ransom money note that discusses the demand for the sufferers to effect the repayment for the function of decrypting the documents or recovering the data system back to the first condition. In many circumstances, the ransom note will certainly show up when the client restarts the PC after the system has already been damaged.

Win32/Qhost.OFS distribution channels.

In different edges of the world, Win32/Qhost.OFS grows by jumps and also bounds. Nevertheless, the ransom money notes as well as techniques of obtaining the ransom quantity might differ depending on certain local (regional) setups. The ransom money notes as well as methods of obtaining the ransom amount may differ depending on specific local (local) settings.

Ransomware injection

For instance:

    Faulty notifies about unlicensed software program.

    In particular areas, the Trojans typically wrongfully report having actually detected some unlicensed applications made it possible for on the target’s device. The sharp after that demands the individual to pay the ransom.

    Faulty declarations regarding prohibited content.

    In countries where software application piracy is much less prominent, this approach is not as effective for the cyber scams. Additionally, the Win32/Qhost.OFS popup alert may incorrectly claim to be deriving from a police organization as well as will report having situated youngster pornography or various other illegal data on the device.

    Win32/Qhost.OFS popup alert may falsely claim to be deriving from a legislation enforcement organization as well as will report having located youngster porn or other unlawful information on the device. The alert will likewise consist of a requirement for the user to pay the ransom.

Technical details

File Info:

crc32: 126D4D0D
md5: 1b1b71f0048ccdbe521a65249760e318
name: 1B1B71F0048CCDBE521A65249760E318.mlw
sha1: 7021c85bed95c90f9a50228cd0bb4fc38453c039
sha256: 96e5e59f0afd044eff0a68bbb41ec68e8bd189c29af1a5e9b2445966e9f28f90
sha512: 739fdb1d2f4f58d41360467791a4508700b433198d1a46fe41c0cd3c86548ff3c6526b695e01b64f0dbaa9f165c1fcdb1a843d2f8a1f9b1c0935dda6053f4b31
ssdeep: 1536:nRIGhwLyNc3OqcVr0bvoi+jfLl/3S2TY9:6cVuvoi+jfLl8
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0409 0x04b0
ProductVersion: 1.00
InternalName: bmxbbva
FileVersion: 1.00
OriginalFilename: bmxbbva.exe
ProductName: WINDNS

Win32/Qhost.OFS also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Riskware ( 0040eff71 )
Elastic malicious (high confidence)
DrWeb Trojan.MulDrop3.51054
ClamAV Win.Trojan.Agent-558089
ALYac Gen:Trojan.Heur.ZGY.5
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
BitDefender Gen:Trojan.Heur.ZGY.5
K7GW Riskware ( 0040eff71 )
Cybereason malicious.0048cc
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Qhost.OFS
APEX Malicious
Cynet Malicious (score: 100)
Kaspersky Trojan-Ransom.Win32.Blocker.bqje
Alibaba Trojan:Win32/Blocker.36cf0299
NANO-Antivirus Trojan.Win32.Drop.yuucm
MicroWorld-eScan Gen:Trojan.Heur.ZGY.5
Tencent Win32.Trojan.Blocker.Dxnf
Ad-Aware Gen:Trojan.Heur.ZGY.5
Comodo Malware@#y2as42mn0539
F-Secure Trojan.TR/Patched.Ren.Gen
BitDefenderTheta AI:Packer.254A2CEF15
VIPRE Trojan.Win32.Generic!BT
Emsisoft Gen:Trojan.Heur.ZGY.5 (B)
Jiangmin Trojan.Blocker.pbi
Webroot W32.Trojan.Gen
Avira TR/Patched.Ren.Gen
eGambit Unsafe.AI_Score_99%
Antiy-AVL Trojan[Ransom]/Win32.Blocker
Arcabit Trojan.Heur.ZGY.5
ZoneAlarm Trojan-Ransom.Win32.Blocker.bqje
GData Gen:Trojan.Heur.ZGY.5
TACHYON Trojan/W32.VB-Genome.86016.B
Acronis suspicious
McAfee Artemis!1B1B71F0048C
MAX malware (ai score=86)
VBA32 Hoax.Blocker
Malwarebytes Malware.Heuristic.1001
TrendMicro-HouseCall Ransom_Blocker.R002C0DK320
Rising Trojan.Qhost!8.1B0 (CLOUD)
SentinelOne Static AI – Suspicious PE
Fortinet W32/Qhost.OFS
Panda Generic Malware
Qihoo-360 Win32/Ransom.Blocker.HwMAErsA

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

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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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