What is MSIL/Injector.OBU infection?

In this article you will discover concerning the definition of MSIL/Injector.OBU and its adverse impact on your computer. Such ransomware are a kind of malware that is clarified by on the internet scams to require paying the ransom money by a victim.

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In the majority of the situations, MSIL/Injector.OBU virus will certainly instruct its targets to launch funds move for the objective of neutralizing the changes that the Trojan infection has actually presented to the sufferer’s gadget.

MSIL/Injector.OBU Summary

These adjustments can be as adheres to:

  • 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.
  • Creates RWX memory. There is a security trick with memory regions that allows an attacker to fill a buffer with a shellcode and then execute it. Filling a buffer with shellcode isn’t a big deal, it’s just data. The problem arises when the attacker is able to control the instruction pointer (EIP), usually by corrupting a function’s stack frame using a stack-based buffer overflow, and then changing the flow of execution by assigning this pointer to the address of the shellcode.
  • At least one IP Address, Domain, or File Name was found in a crypto call;
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files found on the sufferer’s disk drive — so the target can no more use the information;
  • Preventing routine accessibility to the sufferer’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 channels where MSIL/Injector.OBU Ransomware are infused are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As a repercussion of individual ending up on a resource that holds a destructive software;

As soon as the Trojan is successfully infused, it will either cipher the data on the sufferer’s PC or avoid the device from working in a proper fashion – while also positioning a ransom note that mentions the need for the victims to impact the repayment for the purpose of decrypting the papers or restoring the documents system back to the first condition. In many instances, the ransom money note will turn up when the client restarts the PC after the system has actually already been harmed.

MSIL/Injector.OBU circulation networks.

In different edges of the globe, MSIL/Injector.OBU expands by leaps and bounds. However, the ransom money notes and techniques of obtaining the ransom quantity may vary depending upon certain local (local) setups. The ransom money notes and also methods of extorting the ransom quantity may differ depending on specific regional (local) settings.

Ransomware injection

For instance:

    Faulty notifies about unlicensed software application.

    In certain locations, the Trojans typically wrongfully report having actually spotted some unlicensed applications enabled on the target’s tool. The sharp after that demands the customer to pay the ransom.

    Faulty statements regarding prohibited material.

    In countries where software application piracy is less preferred, this approach is not as effective for the cyber scams. Alternatively, the MSIL/Injector.OBU popup alert might falsely claim to be originating from a law enforcement organization as well as will report having located youngster pornography or various other illegal information on the device.

    MSIL/Injector.OBU popup alert may falsely declare to be acquiring from a regulation enforcement institution as well as will certainly report having situated kid pornography or various other illegal data on the gadget. The alert will likewise have a demand for the individual to pay the ransom.

Technical details

File Info:

crc32: 7C1F3D85
md5: 3301d0972a180ccf2dcd98a35bec3410
name: 3301D0972A180CCF2DCD98A35BEC3410.mlw
sha1: b7c2d20a8bec75640fc82392c6f50d58d821355d
sha256: 92d8030060473fef289e64573673346043d4b74955356c911fba6c847916e2d4
sha512: 10b23a6fa5c70d4ac10c1cdb3998ab64c1e444d65ace9ef913a553062d7e1c7172914a1212093ed93db8f8ee4eb39ada425ed1f25e79bab92453ad50968071c2
ssdeep: 12288:BwBmS3W0RLKliA9IotzgAHW5zc4F+uj9ETtSzT1:O3Wr3IozWzc4F+uJEZSzT
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: Copyright (C) 2010-2014 David Rosca
Assembly Version:
InternalName: fggggggggs.exe
CompanyName: QupZilla Team
Comments: QupZilla Web Browser
ProductName: QupZilla
FileDescription: qupzilla
OriginalFilename: fggggggggs.exe

MSIL/Injector.OBU also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 004de6ab1 )
Elastic malicious (high confidence)
Cynet Malicious (score: 90)
ALYac Gen:Variant.MSIL.Lynx.51
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Ransom:Win32/Blocker.f399e16d
K7GW Trojan ( 004de6ab1 )
Cybereason malicious.72a180
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of MSIL/Injector.OBU
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.Win32.Blocker.dvjn
BitDefender Gen:Variant.MSIL.Lynx.51
NANO-Antivirus Trojan.Win32.Blocker.emtatk
MicroWorld-eScan Gen:Variant.MSIL.Lynx.51
Tencent Win32.Trojan.Blocker.Lfzl
Ad-Aware Gen:Variant.MSIL.Lynx.51
Sophos ML/PE-A + Troj/MSIL-JHH
F-Secure Heuristic.HEUR/AGEN.1115197
BitDefenderTheta Gen:NN.ZemsilF.34628.Tq1@a8BO3@p
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition Trojan-FIBP!3301D0972A18
Emsisoft Gen:Variant.MSIL.Lynx.51 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Blocker.gpd
Avira HEUR/AGEN.1115197
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Trojan:Win32/Dynamer!ac
AegisLab Trojan.Win32.Blocker.j!c
GData MSIL.Trojan-Spy.Predapan.M
McAfee Trojan-FIBP!3301D0972A18
MAX malware (ai score=88)
Panda Trj/GdSda.A
Rising Trojan.Ymacco!8.11BE1 (CLOUD)
Yandex Trojan.Blocker!8mYhdMMADdY
Ikarus Trojan.MSIL.Injector
Fortinet MSIL/Injector.OBU!tr
AVG Win32:Malware-gen
Qihoo-360 Win32/Ransom.Blocker.HwMA9psA

How to remove MSIL/Injector.OBU virus?

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 MSIL/Injector.OBU 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:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove MSIL/Injector.OBU 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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