Written by Robert Bailey

What is Trojan:Win32/Qakbot!MSR infection?

In this short article you will certainly find regarding the meaning of Trojan:Win32/Qakbot!MSR and its unfavorable effect on your computer. Such ransomware are a type of malware that is elaborated by on the internet scams to demand paying the ransom by a victim.

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In the majority of the situations, Trojan:Win32/Qakbot!MSR ransomware will certainly advise its sufferers to launch funds move for the purpose of counteracting the amendments that the Trojan infection has actually presented to the target’s device.

Trojan:Win32/Qakbot!MSR Summary

These modifications 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.
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • Presents an Authenticode digital signature;
  • 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.
  • A process created a hidden window;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses Windows utilities for basic functionality;
  • Executed a process and injected code into it, probably while unpacking;
  • 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 files located on the target’s hard disk drive — so the target can no more make use of the information;
  • Preventing regular accessibility to the target’s workstation;
Similar behavior
Related domains Ransom.Win32.Wacatac.oa Ransom.Win32.Wacatac.oa


One of the most normal channels through which Trojan:Win32/Qakbot!MSR Ransomware are infused are:

  • By ways of phishing e-mails;
  • As an effect of user ending up on a source that organizes a destructive software application;

As soon as the Trojan is efficiently infused, it will either cipher the information on the sufferer’s PC or stop the gadget from operating in a correct manner – while additionally positioning a ransom note that discusses the requirement for the sufferers to effect the payment for the function of decrypting the documents or restoring the documents system back to the first problem. In a lot of circumstances, the ransom note will certainly show up when the customer reboots the COMPUTER after the system has currently been damaged.

Trojan:Win32/Qakbot!MSR circulation channels.

In various edges of the world, Trojan:Win32/Qakbot!MSR expands by leaps and also bounds. Nonetheless, the ransom money notes and tricks of obtaining the ransom money amount may vary depending upon particular neighborhood (regional) setups. The ransom notes and also tricks of extorting the ransom money quantity might differ depending on certain local (local) settings.

Ransomware injection

As an example:

    Faulty signals concerning unlicensed software program.

    In particular locations, the Trojans commonly wrongfully report having found some unlicensed applications made it possible for on the victim’s tool. The sharp after that demands the customer to pay the ransom.

    Faulty declarations about unlawful content.

    In nations where software piracy is less popular, this approach is not as effective for the cyber frauds. Conversely, the Trojan:Win32/Qakbot!MSR popup alert may wrongly claim to be deriving from a law enforcement organization as well as will report having situated kid porn or other illegal information on the device.

    Trojan:Win32/Qakbot!MSR popup alert may wrongly assert to be obtaining from a legislation enforcement establishment and also will certainly report having located youngster pornography or various other unlawful data on the tool. The alert will in a similar way include a need for the user to pay the ransom money.

Technical details

File Info:

crc32: 528A1639
md5: 92488ab47c1703f31d6f4d079ad3c9f9
name: 92488AB47C1703F31D6F4D079AD3C9F9.mlw
sha1: e2a16a1a4ddcc23edf6c243ab71624c27d4f0f95
sha256: 0307bf0aba14a0ea2bff7ecff22a2417426583b722cd645f869d37c160cd3de3
sha512: d9dafb6ec0f8e244d385f8d7418881da84058fa3716d9afda710d128f1439ec400b601622f318e7594cd5571a3b95a7cc97e0978227a3a51a143339715f353dc
ssdeep: 6144:7MLWCfv7np6D1NaWF88siwzYiPU8PDUuX3hL:78WCfv7n21NaH9ZzYbAUGx
type: PE32 executable (DLL) (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Trojan:Win32/Qakbot!MSR also known as:

GridinSoft Trojan.Ransom.Gen
MicroWorld-eScan Trojan.Agent.FCUJ
FireEye Trojan.Agent.FCUJ
CAT-QuickHeal Trojan.Agent
ALYac Trojan.Agent.QakBot
VIPRE Trojan.Win32.Generic!BT
Sangfor Trojan.Win32.Save.a
BitDefender Trojan.Agent.FCUJ
K7GW Trojan ( 0057746b1 )
K7AntiVirus Trojan ( 0057746b1 )
Cyren W32/Trojan.DASC-6460
Symantec Trojan.Maltrec.TS
ESET-NOD32 a variant of Win32/Kryptik.HJFW
Avast Win32:DangerousSig [Trj]
ClamAV Win.Malware.Fcuj-9829288-0
Kaspersky Trojan-Banker.Win32.Qbot.zzt
Alibaba TrojanBanker:Win32/Kryptik.b1be4d94
NANO-Antivirus Trojan.Win32.Qbot.ijcdem
Rising Trojan.MalCert!1.D23E (CLOUD)
Ad-Aware Trojan.Agent.FCUJ
Sophos Mal/Generic-R + Troj/Inject-GSB
Comodo TrojWare.Win32.QBot.SLG@9af0kg
F-Secure Trojan.TR/AD.Qbot.lyfna
DrWeb BackDoor.Qbot.582
Zillya Backdoor.QBot.Win32.1115
TrendMicro TROJ_FRS.0NA103B321
McAfee-GW-Edition Trojan-FTJC!92488AB47C17
Emsisoft MalCert.A (A)
Ikarus Backdoor.QBot
Jiangmin Trojan.Banker.Qbot.ww
Webroot W32.Trojan.Gen
Avira TR/AD.Qbot.lyfna
MAX malware (ai score=80)
Antiy-AVL HackTool/Win32.Hidd
Kingsoft Win32.Troj.Banker.(kcloud)
Microsoft Trojan:Win32/Qakbot!MSR
Gridinsoft Ransom.Win32.Wacatac.oa
Arcabit Trojan.Agent.FCUJ
AhnLab-V3 Malware/Win32.RL_Generic.R365209
ZoneAlarm Trojan-Banker.Win32.Qbot.zzt
GData Trojan.Agent.FCUJ
Cynet Malicious (score: 90)
McAfee Trojan-FTJC!92488AB47C17
VBA32 Backdoor.QBot
Malwarebytes Backdoor.Qbot
Panda Trj/Genetic.gen
TrendMicro-HouseCall TROJ_FRS.0NA103B321
MaxSecure Trojan.Malware.113666736.susgen
Fortinet W32/GenCBL.XA!tr
AVG Win32:DangerousSig [Trj]
Qihoo-360 Win32/Backdoor.QakBot.HgkASOUA

How to remove Trojan:Win32/Qakbot!MSR 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

The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes.2.

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 Trojan:Win32/Qakbot!MSR 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 Trojan:Win32/Qakbot!MSR 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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