Trojan.Agent.QAZ

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

What is Trojan.Agent.QAZ infection?

In this short article you will certainly locate regarding the definition of Trojan.Agent.QAZ and its adverse impact on your computer system. Such ransomware are a form of malware that is elaborated by on-line frauds to require paying the ransom money by a sufferer.

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In the majority of the situations, Trojan.Agent.QAZ virus will certainly instruct its targets to start funds transfer for the function of reducing the effects of the modifications that the Trojan infection has actually presented to the victim’s device.

Trojan.Agent.QAZ 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.
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • 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.
  • 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.

  • 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.
  • Executed a very long command line or script command which may be indicative of chained commands or obfuscation;
  • A scripting utility was executed;
  • Uses Windows utilities for basic functionality;
  • Executed a process and injected code into it, probably while unpacking;
  • Deletes its original binary from disk;
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
  • A system process is generating network traffic likely as a result of process injection;
  • 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;
  • Ciphering the documents located on the victim’s hard disk drive — so the target can no more use the data;
  • Preventing regular accessibility to the victim’s workstation;

Trojan.Agent.QAZ

One of the most regular networks where Trojan.Agent.QAZ Ransomware Trojans are infused are:

  • By means of phishing e-mails;
  • As a repercussion of individual ending up on a resource that organizes a harmful software;

As quickly as the Trojan is effectively injected, it will either cipher the information on the sufferer’s PC or stop the tool from operating in an appropriate fashion – while also putting a ransom money note that mentions the requirement for the targets to effect the settlement for the function of decrypting the documents or restoring the data system back to the initial condition. In many circumstances, the ransom note will show up when the client reboots the COMPUTER after the system has actually currently been harmed.

Trojan.Agent.QAZ distribution networks.

In different corners of the world, Trojan.Agent.QAZ grows by leaps and also bounds. Nonetheless, the ransom money notes and methods of extorting the ransom money quantity might differ relying on particular regional (local) setups. The ransom notes and also methods of extorting the ransom quantity might vary depending on particular neighborhood (regional) settings.

Ransomware injection

As an example:

    Faulty signals concerning unlicensed software program.

    In certain areas, the Trojans usually wrongfully report having actually identified some unlicensed applications enabled on the sufferer’s tool. The alert after that requires the user to pay the ransom money.

    Faulty declarations regarding illegal web content.

    In countries where software program piracy is much less preferred, this method is not as reliable for the cyber scams. Alternatively, the Trojan.Agent.QAZ popup alert might wrongly assert to be originating from a law enforcement institution and also will certainly report having situated kid porn or various other unlawful data on the tool.

    Trojan.Agent.QAZ popup alert might falsely declare to be acquiring from a law enforcement institution and will certainly report having located kid pornography or various other illegal data on the gadget. The alert will in a similar way consist of a need for the customer to pay the ransom.

Technical details

File Info:

crc32: 4D5F8A1B
md5: b367d1cf406d87869e36089f8fe5b866
name: B367D1CF406D87869E36089F8FE5B866.mlw
sha1: 77329c69281c538e4c4e35add8cb3c953a782d67
sha256: dbbafb31675c327f4cdf4a39c1acb9900d0b481b2f34f32e8e3ea4c034649c0a
sha512: 3c18a22a58f739ee74702703a7efd5f1f94af8c22629a390ff80967ea3938b094cab5393c5404d6c234b03509a278729c9be931616055c562738ca590ae6316a
ssdeep: 6144:4QxNnLkogqoP4Gag0B6K+rUWi+Qw/tPDnkSFpEpJKiVSjFVFOxhKQG1zI5m:txNnLkogt4Gp0gnwWJ/tPDnknpJK8SHj
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Trojan.Agent.QAZ also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Trojan ( 0055e3ef1 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.10474
Cynet Malicious (score: 100)
CAT-QuickHeal Backdoor.Androm
ALYac Gen:Variant.Ransom.Polyglot.12
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Backdoor:Win32/Androm.28816ba6
K7GW Trojan ( 0055e3ef1 )
Cybereason malicious.f406d8
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Injector.DFJS
APEX Malicious
Avast Win32:Trojan-gen
ClamAV Win.Trojan.Marsjoke-1
Kaspersky Backdoor.Win32.Androm.oqvz
BitDefender Gen:Variant.Ransom.Polyglot.12
NANO-Antivirus Trojan.Win32.Purga.emmiol
SUPERAntiSpyware Ransom.Polyglot/Variant
MicroWorld-eScan Gen:Variant.Ransom.Polyglot.12
Tencent Trojan-Ransom.Win32.MarsJoke.a
Ad-Aware Gen:Variant.Ransom.Polyglot.12
Sophos Mal/Generic-R + Mal/Zbot-UM
Comodo Malware@#37l5avtdn9xnw
BitDefenderTheta Gen:NN.ZexaF.34628.vq0@a0gQLYj
VIPRE Trojan.Win32.Generic!BT
TrendMicro TROJ_GEN.R002C0PB121
McAfee-GW-Edition BehavesLike.Win32.Trojan.fc
FireEye Generic.mg.b367d1cf406d8786
Emsisoft Gen:Variant.Ransom.Polyglot.12 (B)
SentinelOne Static AI – Suspicious PE
Jiangmin Backdoor.Androm.knt
Avira HEUR/AGEN.1128856
Microsoft Trojan:Win32/Azorult!ml
Arcabit Trojan.Ransom.Polyglot.12
AegisLab Trojan.Win32.Androm.m!c
GData Gen:Variant.Ransom.Polyglot.12
AhnLab-V3 Trojan/Win32.MDA.R188372
McAfee GenericRXAJ-FI!B367D1CF406D
MAX malware (ai score=99)
VBA32 BScope.Trojan.Boaxxe
Malwarebytes Trojan.Agent.QAZ
Panda Trj/GdSda.A
TrendMicro-HouseCall TROJ_GEN.R002C0PB121
Rising Trojan.Dynamer!8.3A0 (CLOUD)
Yandex Trojan.GenAsa!3YKYgs5BWxw
Ikarus Trojan.Win32.Injector
Fortinet W32/Injector.DFLS!tr
AVG Win32:Trojan-gen
Qihoo-360 Win32/Backdoor.Androm.HwcBEpsA

How to remove Trojan.Agent.QAZ 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

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 Trojan.Agent.QAZ 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 Trojan.Agent.QAZ 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/comparison

About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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