What is Trojan:Win32/Vundo.BR infection?

In this short article you will find regarding the meaning of Trojan:Win32/Vundo.BR and its negative impact on your computer. Such ransomware are a form of malware that is elaborated by online frauds to require paying the ransom by a target.

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Most of the cases, Trojan:Win32/Vundo.BR infection will advise its victims to start funds move for the purpose of reducing the effects of the changes that the Trojan infection has presented to the target’s tool.

Trojan:Win32/Vundo.BR 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.
  • 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.
  • Unconventionial language used in binary resources: Japanese;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • 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 records situated on the target’s hard drive — so the sufferer can no more make use of the information;
  • Preventing routine accessibility to the victim’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 typical networks through which Trojan:Win32/Vundo.BR are injected are:

  • By means of phishing emails;
  • As an effect of user winding up on a resource that organizes a harmful software program;

As soon as the Trojan is efficiently injected, it will certainly either cipher the data on the sufferer’s computer or avoid the device from working in a proper way – while likewise positioning a ransom money note that points out the requirement for the sufferers to impact the repayment for the purpose of decrypting the papers or restoring the file system back to the first condition. In most circumstances, the ransom note will certainly turn up when the customer reboots the COMPUTER after the system has already been harmed.

Trojan:Win32/Vundo.BR distribution channels.

In numerous edges of the globe, Trojan:Win32/Vundo.BR grows by jumps as well as bounds. Nonetheless, the ransom notes and also methods of obtaining the ransom amount may vary relying on certain local (local) setups. The ransom notes as well as tricks of extorting the ransom money quantity may vary depending on certain regional (local) setups.

Ransomware injection

For instance:

    Faulty signals about unlicensed software.

    In particular locations, the Trojans usually wrongfully report having actually discovered some unlicensed applications enabled on the sufferer’s device. The alert then demands the individual to pay the ransom money.

    Faulty declarations regarding prohibited web content.

    In countries where software application piracy is less prominent, this method is not as effective for the cyber frauds. Additionally, the Trojan:Win32/Vundo.BR popup alert may incorrectly declare to be originating from a police institution and will certainly report having situated kid pornography or other illegal data on the gadget.

    Trojan:Win32/Vundo.BR popup alert might wrongly assert to be acquiring from a legislation enforcement institution as well as will certainly report having situated child porn or other prohibited data on the device. The alert will likewise consist of a requirement for the individual to pay the ransom.

Technical details

File Info:

crc32: EFF0D2A2
md5: ed63f31d529e1392bb6e10662236b662
name: ED63F31D529E1392BB6E10662236B662.mlw
sha1: 13004ef400b3f9153eeae0cc9a134c2b59054ddd
sha256: 7d26bdf32eacf704efda11cf71d8f6b479c4a22bf3dbde13a17e8fd42b401e11
sha512: 362f576e434f0ec1eb30fd24eb1e1984f346907231fbca05ec097040c3b4c8a152c4964389ce22ecac32680454e70a287355976c01dfd099a3b299b98c03dc45
ssdeep: 768:ZyCC3jWT0Mj2RtdYUWyOMx15gqmNIWH5QgubWKdLo+6/tjntrD0cwJ44rOg0:IF3XRLso1y5ghdLo+6lz5Twa4
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2001-2004 Canon Inc.
InternalName: CDPTPCLS
FileVersion: 7, 3, 0, 3
CompanyName: Canon Inc.
ProductName: Canon Digital Camera Support Library
ProductVersion: 7, 3, 0, 3
FileDescription: Canon Digital Camera SDK PTP dll
OriginalFilename: CDPTPCLS.DLL
Translation: 0x0411 0x04b0

Trojan:Win32/Vundo.BR also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Trojan ( 0001140e1 )
DrWeb Trojan.MulDrop.50068
Cynet Malicious (score: 100)
Cylance Unsafe
Zillya Trojan.Cimag.Win32.6023
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba TrojanDownloader:Win32/Conhook.d8a92057
K7GW Trojan ( 0001140e1 )
Cybereason malicious.d529e1
Cyren W32/Virtumonde.CB.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Cimag.DL
APEX Malicious
Avast Win32:Vundo-SF [Trj]
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Variant.Ransom.Xdata.11
NANO-Antivirus Virus.Win32.Gen.ccmw
ViRobot Trojan.Win32.A.Downloader.48128.GF
SUPERAntiSpyware Trojan.Agent/Gen-Virut[C00]
MicroWorld-eScan Gen:Variant.Ransom.Xdata.11
Tencent Win32.Trojan.Generic.Amlv
Ad-Aware Gen:Variant.Ransom.Xdata.11
Sophos ML/PE-A + Troj/Virtum-Gen
Comodo MalCrypt.Indus!@1qrzi1
BitDefenderTheta Gen:NN.ZexaF.34628.cm0@aWvey1hG
VIPRE Trojan.Win32.Vundo.Gen (v)
McAfee-GW-Edition BehavesLike.Win32.Virut.pc
Emsisoft Gen:Variant.Ransom.Xdata.11 (B)
SentinelOne Static AI – Malicious PE
Webroot W32.Vundo.Gen
Avira TR/Crypt.XPACK.Gen2
eGambit Generic.Malware
Microsoft Trojan:Win32/Vundo.BR
Arcabit Trojan.Ransom.Xdata.11
GData Gen:Variant.Ransom.Xdata.11
AhnLab-V3 Trojan/Win32.Xema.C7503
Acronis suspicious
VBA32 BScope.Trojan.Download
MAX malware (ai score=100)
Malwarebytes MachineLearning/Anomalous.100%
Panda Trj/Genetic.gen
TrendMicro-HouseCall TROJ_VUNDO.SMAM
Rising Downloader.Conhook!8.93E (CLOUD)
Ikarus Packer.Win32.Mondera
Fortinet W32/VUNDO.SMAM!tr
AVG Win32:Vundo-SF [Trj]
Qihoo-360 Win32/Backdoor.Buterat.HxQBRAMB

How to remove Trojan:Win32/Vundo.BR 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 Trojan:Win32/Vundo.BR 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:Win32/Vundo.BR you can always ask me in the comments for getting help.

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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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