Win32/Agent.VBQ

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

What is Win32/Agent.VBQ infection?

In this short article you will certainly discover concerning the interpretation of Win32/Agent.VBQ and also its negative effect on your computer system. Such ransomware are a form of malware that is elaborated by on the internet scams to require paying the ransom money by a sufferer.

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In the majority of the instances, Win32/Agent.VBQ virus will certainly instruct its victims to launch funds move for the function of neutralizing the amendments that the Trojan infection has introduced to the target’s gadget.

Win32/Agent.VBQ Summary

These adjustments 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.
  • Injection (inter-process);
  • 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.

  • 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;
  • A potential decoy document was displayed to the user;
  • 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 hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files situated on the sufferer’s disk drive — so the victim can no longer use the information;
  • Preventing regular accessibility to the victim’s workstation;
Similar behavior
Related domains
blognews.onmypc.org Win32/Ransom.Blocker.HyoDxgcA
ametoy.acmetoy.com Win32/Ransom.Blocker.HyoDxgcA

Win32/Agent.VBQ

The most typical networks whereby Win32/Agent.VBQ Ransomware Trojans are injected are:

  • By methods of phishing emails;
  • As a consequence of individual ending up on a source that holds a destructive software program;

As soon as the Trojan is effectively injected, it will certainly either cipher the data on the victim’s computer or protect against the tool from working in a proper manner – while likewise positioning a ransom money note that mentions the demand for the sufferers to impact the repayment for the function of decrypting the papers or bring back the file system back to the first condition. In many circumstances, the ransom money note will certainly turn up when the customer restarts the COMPUTER after the system has actually already been harmed.

Win32/Agent.VBQ distribution channels.

In different edges of the globe, Win32/Agent.VBQ grows by jumps as well as bounds. However, the ransom notes and also techniques of obtaining the ransom money quantity might vary depending on particular neighborhood (regional) settings. The ransom notes and methods of extorting the ransom money amount may differ depending on certain regional (local) settings.

Ransomware injection

For instance:

    Faulty notifies concerning unlicensed software application.

    In certain locations, the Trojans typically wrongfully report having identified some unlicensed applications enabled on the target’s tool. The alert after that requires the customer to pay the ransom.

    Faulty statements regarding unlawful content.

    In countries where software application piracy is much less preferred, this technique is not as efficient for the cyber scams. Alternatively, the Win32/Agent.VBQ popup alert might falsely claim to be deriving from a law enforcement establishment and also will certainly report having situated child pornography or various other illegal information on the device.

    Win32/Agent.VBQ popup alert may wrongly declare to be deriving from a law enforcement institution and also will certainly report having situated child porn or various other illegal information on the device. The alert will in a similar way have a need for the user to pay the ransom money.

Technical details

File Info:

crc32: C86DAD49
md5: 79f1af23d5ab729a3071d1f4c2a0606f
name: 79F1AF23D5AB729A3071D1F4C2A0606F.mlw
sha1: 5a8ba95d925b166a51cb7755971def2eb18873f0
sha256: faec75d9b819504716908e923ad30a70a40e6e2094ac4775bcc3edb4448c5296
sha512: 9fb99b0c3129850f734132f792fcc6e717151751b3015c6e1d5462adc24235a78a9e6d212ce54cc8d4d3d7a4f0807ca044e9c2fbf88c31d32b99d9238ca3d134
ssdeep: 3072:3Lk395hYXJfLv21HL2bw/ZBeFZyea4aOQ0i2ogl8y7hqhMR2szjMO+DnITi6s+Ac:3QqZbRoTsI5bpLaypKuD7IFpi311proJ
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Agent.VBQ also known as:

GridinSoft Trojan.Ransom.Gen
MicroWorld-eScan Gen:Variant.Ser.Mikey.1391
FireEye Generic.mg.79f1af23d5ab729a
Qihoo-360 Win32/Ransom.Blocker.HyoDxgcA
ALYac Gen:Variant.Ser.Mikey.1391
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Trojan.Win32.Bluether.A
K7AntiVirus Trojan ( 0055e3dd1 )
BitDefender Gen:Variant.Ser.Mikey.1391
K7GW Trojan ( 0055e3dd1 )
Symantec ML.Attribute.HighConfidence
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.Win32.Blocker.fwvg
Alibaba Trojan:Win32/Blocker.0095f1f8
NANO-Antivirus Trojan.Win32.Agent.dgrlml
Rising Malware.FakePDF@CV!1.9C3A (CLASSIC)
Sophos Mal/Generic-R
Comodo Malware@#30v74ifpz5pag
F-Secure Heuristic.HEUR/AGEN.1111002
DrWeb Trojan.DownLoader11.40674
Zillya Trojan.Blocker.Win32.31489
TrendMicro BKDR_PLEAD.SMZTDK-C
McAfee-GW-Edition GenericRXEX-WK!4BCB99623C05
Emsisoft Gen:Variant.Ser.Mikey.1391 (B)
Jiangmin Trojan.Blocker.d
Avira HEUR/AGEN.1111002
MAX malware (ai score=99)
Antiy-AVL Trojan[Ransom]/Win32.Blocker
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Backdoor:Win32/Bladabindi!ml
Arcabit Trojan.Ser.Mikey.D56F
ZoneAlarm Trojan-Ransom.Win32.Blocker.fwvg
GData Gen:Variant.Ser.Mikey.1391
Cynet Malicious (score: 85)
McAfee Artemis!79F1AF23D5AB
VBA32 Hoax.Blocker
Malwarebytes Generic.Malware/Suspicious
Panda Trj/Chgt.H
ESET-NOD32 a variant of Win32/Agent.VBQ
TrendMicro-HouseCall BKDR_PLEAD.SMZTDK-C
Tencent Win32.Trojan.Blocker.Alsr
Yandex Trojan.Blocker!jebDcCoRy/4
Ikarus Trojan-Ransom.Blocker
Fortinet W32/Agent.WMZ!tr
BitDefenderTheta Gen:NN.ZexaF.34590.cq0@aSM@Vcli
AVG Win32:Malware-gen
Cybereason malicious.3d5ab7
Paloalto generic.ml

How to remove Win32/Agent.VBQ 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/Agent.VBQ 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/Agent.VBQ 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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