Written by Robert Bailey

What is TrojanDownloader:Win32/Gobundaz.B infection?

In this article you will find about the definition of TrojanDownloader:Win32/Gobundaz.B and also its adverse effect on your computer system. Such ransomware are a type of malware that is specified by on-line frauds to demand paying the ransom money by a target.

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In the majority of the situations, TrojanDownloader:Win32/Gobundaz.B infection will instruct its victims to initiate funds transfer for the purpose of reducing the effects of the modifications that the Trojan infection has introduced to the sufferer’s tool.

TrojanDownloader:Win32/Gobundaz.B Summary

These adjustments can be as adheres to:

  • 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.
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic;
  • Performs some HTTP requests;
  • 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
  • Exhibits possible ransomware file modification behavior;
  • 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.
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Clears web history;
  • Ciphering the documents found on the sufferer’s hard disk — so the sufferer can no longer utilize the information;
  • Preventing routine access to the target’s workstation;

Related domains: HEUR:Trojan-Ransom.Win32.Generic HEUR:Trojan-Ransom.Win32.Generic HEUR:Trojan-Ransom.Win32.Generic HEUR:Trojan-Ransom.Win32.Generic


The most common networks whereby TrojanDownloader:Win32/Gobundaz.B are infused are:

  • By ways of phishing emails;
  • As a consequence of user winding up on a resource that hosts a destructive software application;

As quickly as the Trojan is successfully injected, it will either cipher the information on the target’s PC or avoid the gadget from working in a correct fashion – while additionally placing a ransom note that mentions the need for the victims to impact the payment for the objective of decrypting the records or bring back the file system back to the initial condition. In a lot of instances, the ransom note will show up when the client reboots the COMPUTER after the system has already been damaged.

TrojanDownloader:Win32/Gobundaz.B distribution channels.

In numerous corners of the globe, TrojanDownloader:Win32/Gobundaz.B grows by jumps as well as bounds. However, the ransom money notes and also methods of extorting the ransom money amount might vary depending on specific regional (regional) settings. The ransom money notes and tricks of obtaining the ransom amount may differ depending on certain regional (local) setups.

Ransomware injection

As an example:

    Faulty signals about unlicensed software application.

    In specific areas, the Trojans frequently wrongfully report having actually found some unlicensed applications enabled on the sufferer’s device. The sharp then requires the customer to pay the ransom money.

    Faulty declarations about illegal material.

    In nations where software program piracy is less prominent, this method is not as reliable for the cyber frauds. Alternatively, the TrojanDownloader:Win32/Gobundaz.B popup alert might incorrectly assert to be stemming from a police institution and also will report having located kid pornography or various other unlawful information on the tool.

    TrojanDownloader:Win32/Gobundaz.B popup alert might falsely declare to be obtaining from a legislation enforcement establishment and also will certainly report having situated child porn or other prohibited data on the device. The alert will in a similar way include a demand for the individual to pay the ransom.

Technical details

File Info:

crc32: BA1563B0
md5: 5ddb853c83fa215d0c4d8a494ba485c1
name: 5DDB853C83FA215D0C4D8A494BA485C1.mlw
sha1: 183891f0e56a44f8028e3721d2d4b52e6db15a2b
sha256: 15ac7032b98f6f3b933b2d3120ab659f23257a0b0d1fe4f94c22e0771c0c3c9c
sha512: 8ebcf0d36afce11ffe52efccc2e6be968adc4c29dd1c1c40ad95d249fa59475ff864918524b858882af462efc1666a0f492bc70c5cc3f9501cb6543bf826da85
ssdeep: 24576:smqwfEeywM+bWFj1GL5d2gTM2JJSSa4nYpU/ywJ/A3PQT4:sm7IFOiDkaDphwEoT
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

TrojanDownloader:Win32/Gobundaz.B also known as:

GridinSoft Trojan.Ransom.Gen
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Jacard.200052
ALYac Gen:Variant.Jacard.200052
Cylance Unsafe
Sangfor Malware
K7AntiVirus Spyware ( 004a9f3d1 )
BitDefender Gen:Variant.Jacard.200052
K7GW Spyware ( 004a9f3d1 )
Cybereason malicious.c83fa2
Symantec ML.Attribute.HighConfidence
APEX Malicious
Avast Win32:Trojan-gen
ClamAV Win.Trojan.Basostab-3
Kaspersky HEUR:Trojan-Ransom.Win32.Generic
Alibaba TrojanDownloader:Win32/Gobundaz.c4191536
NANO-Antivirus Trojan.Win32.Delf.dtrjas
Rising Spyware.Delf!8.12D (TFE:5:HmDb6fRUkTC)
Ad-Aware Gen:Variant.Jacard.200052
Sophos Mal/Generic-S
F-Secure Trojan.TR/Spy.Agent.denrv
DrWeb Trojan.DownLoader26.32816
Zillya Trojan.Delf.Win32.69405
Emsisoft Gen:Variant.Jacard.200052 (B)
SentinelOne Static AI – Suspicious PE
Webroot W32.Trojan.Gen
Avira TR/Spy.Agent.denrv
Antiy-AVL Trojan/Win32.SGeneric
Microsoft TrojanDownloader:Win32/Gobundaz.B
Arcabit Trojan.Jacard.D30D74
ZoneAlarm HEUR:Trojan-Ransom.Win32.Generic
GData Gen:Variant.Jacard.200052
Cynet Malicious (score: 100)
McAfee Artemis!5DDB853C83FA
MAX malware (ai score=84)
VBA32 TScope.Trojan.Delf
Malwarebytes Malware.AI.3650306753
Panda Trj/CI.A
ESET-NOD32 a variant of Win32/Spy.Delf.PTT
Tencent Win32.Trojan.Generic.Tapn
Yandex Trojan.GenAsa!j5GwYgeWJ48
Ikarus Trojan-Spy.Agent
MaxSecure Trojan.Malware.10307848.susgen
Fortinet W32/Generic.PTT!tr
BitDefenderTheta Gen:NN.ZelphiF.34804.lHW@aKm49ve
AVG Win32:Trojan-gen
CrowdStrike win/malicious_confidence_80% (W)
Qihoo-360 Win32/Trojan.Ransom.793

How to remove TrojanDownloader:Win32/Gobundaz.B 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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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.

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Press “Install” button.

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Once installed, Anti-Malware will automatically run.

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Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your system for TrojanDownloader:Win32/Gobundaz.B 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 TrojanDownloader:Win32/Gobundaz.B 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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