Troj/Qakbot-DU

Written by Robert Bailey

What is Troj/Qakbot-DU infection?

In this article you will find concerning the meaning of Troj/Qakbot-DU and also its adverse effect on your computer. Such ransomware are a kind of malware that is clarified by on the internet fraudulences to require paying the ransom money by a target.

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In the majority of the situations, Troj/Qakbot-DU infection will instruct its victims to initiate funds move for the function of reducing the effects of the amendments that the Trojan infection has introduced to the sufferer’s device.

Troj/Qakbot-DU 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.
  • Possible date expiration check, exits too soon after checking local time;
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • A process created a hidden window;
  • 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;
  • 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
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the records located on the sufferer’s hard drive — so the sufferer can no longer utilize the data;
  • Preventing normal access to the target’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

Troj/Qakbot-DU

One of the most normal networks whereby Troj/Qakbot-DU Trojans are injected are:

  • By ways of phishing emails;
  • As a repercussion of user ending up on a resource that hosts a destructive software;

As quickly as the Trojan is effectively injected, it will certainly either cipher the data on the victim’s PC or prevent the tool from working in a correct manner – while also putting a ransom money note that discusses the demand for the targets to effect the settlement for the objective of decrypting the records or recovering the data system back to the first problem. In the majority of circumstances, the ransom money note will come up when the customer restarts the COMPUTER after the system has actually currently been damaged.

Troj/Qakbot-DU distribution channels.

In numerous edges of the globe, Troj/Qakbot-DU grows by jumps as well as bounds. However, the ransom money notes and also methods of extorting the ransom amount may differ relying on certain neighborhood (local) setups. The ransom notes and also methods of extorting the ransom quantity may differ depending on particular regional (regional) setups.

Ransomware injection

For instance:

    Faulty alerts regarding unlicensed software program.

    In particular areas, the Trojans frequently wrongfully report having identified some unlicensed applications enabled on the victim’s tool. The alert then requires the individual to pay the ransom money.

    Faulty declarations about illegal material.

    In nations where software application piracy is much less preferred, this method is not as effective for the cyber fraudulences. Conversely, the Troj/Qakbot-DU popup alert might incorrectly declare to be stemming from a police establishment and will report having located youngster porn or other unlawful information on the gadget.

    Troj/Qakbot-DU popup alert might falsely claim to be acquiring from a legislation enforcement organization and also will report having located kid pornography or other unlawful data on the tool. The alert will likewise have a need for the user to pay the ransom money.

Technical details

File Info:

crc32: 6BBBE36E
md5: dbc916d07613aaa248432de97501c098
name: upload_file
sha1: 2e7b8f0839923b755ee9346f741150eb5b59508e
sha256: f88c7e72905a83e1496485f8f6d3a3507143a8a043df280bafd0eb8971cf8319
sha512: 1b5d7e2a60ec5abf3c0e5c52b5b693dd59048bee8348a321fea0b34dffe7e06f708a59cb31c1f1213aaf5929dfe9f9a761ce97291f6e6e1d02ef85a2064e7234
ssdeep: 6144:5Sj19QP9G+wgVFGOBD+Tl/Qa8Vx+z0JxR7xMJz/qffNNuZxXbDR38x5+jp:5Sj1KA+wg9BD+TVGczIhxMKql3Pjp
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: xa9 Microsoft Corporation. All rights reserved.
InternalName: credwiz.exe
FileVersion: 6.1.7600.16385 (win7_rtm.090713-1255)
CompanyName: Microsoft Corporation
ProductName: Microsoftxae Windowsxae Operating System
ProductVersion: 6.1.7600.16385
FileDescription: Credential Backup and Restore Wizard
OriginalFilename: credwiz.exe
Translation: 0x0409 0x04b0

Troj/Qakbot-DU also known as:

GridinSoft Trojan.Ransom.Gen
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Razy.766244
FireEye Generic.mg.dbc916d07613aaa2
Qihoo-360 Generic/HEUR/QVM20.1.7042.Malware.Gen
McAfee W32/PinkSbot-HC!DBC916D07613
Cylance Unsafe
Sangfor Malware
K7AntiVirus Trojan ( 00570a211 )
Alibaba Trojan:Win32/BankerX.b7faa689
K7GW Trojan ( 00570a211 )
Invincea Mal/Generic-R + Troj/Qakbot-DU
Cyren W32/Qbot.AA.gen!Eldorado
Symantec Ransom.Wannacry
APEX Malicious
Avast Win32:DangerousSig [Trj]
ClamAV Win.Malware.Generickdz-9774815-0
Kaspersky UDS:DangerousObject.Multi.Generic
BitDefender Gen:Variant.Razy.766244
Paloalto generic.ml
Ad-Aware Gen:Variant.Razy.766244
Emsisoft MalCert.A (A)
DrWeb Trojan.QakBot.11
VIPRE Trojan.Win32.Generic!BT
TrendMicro Trojan.Win32.WACATAC.THJOHBO
McAfee-GW-Edition W32/PinkSbot-HC!DBC916D07613
Sophos Troj/Qakbot-DU
SentinelOne DFI – Malicious PE
Webroot W32.Malware.Gen
Avira TR/AD.Qbot.vsbxk
Antiy-AVL GrayWare/Win32.Kryptik.ehls
Microsoft Trojan:Win32/Qakbot.AR!MTB
Arcabit Trojan.Razy.DBB124
ZoneAlarm UDS:DangerousObject.Multi.Generic
GData Win32.Trojan.PSE.1NPTMF
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Qakbot.C4204873
Acronis suspicious
BitDefenderTheta Gen:NN.ZexaF.34298.@p1@aKc@fvii
ALYac Gen:Variant.Razy.766244
MAX malware (ai score=80)
VBA32 BScope.Trojan.Inject
Malwarebytes Backdoor.Qbot
ESET-NOD32 a variant of Win32/Kryptik.HGQU
TrendMicro-HouseCall Trojan.Win32.WACATAC.THJOHBO
Rising Trojan.Kryptik!1.CC55 (CLASSIC)
Ikarus Trojan.Win32.CryptInject
Fortinet W32/GenericKDZ.6939!tr
AVG Win32:DangerousSig [Trj]
Panda Trj/Agent.AJS
CrowdStrike win/malicious_confidence_60% (W)

How to remove Troj/Qakbot-DU 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

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 Troj/Qakbot-DU 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

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If the guide doesn’t help you to remove Troj/Qakbot-DU 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/products/

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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