TrojanDropper:Win32/Bunitu.G

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

What is TrojanDropper:Win32/Bunitu.G infection?

In this post you will discover about the definition of TrojanDropper:Win32/Bunitu.G and its negative influence on your computer. Such ransomware are a form of malware that is elaborated by on-line fraudulences to require paying the ransom by a victim.

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In the majority of the situations, TrojanDropper:Win32/Bunitu.G ransomware will certainly instruct its sufferers to initiate funds transfer for the function of reducing the effects of the amendments that the Trojan infection has introduced to the sufferer’s gadget.

TrojanDropper:Win32/Bunitu.G Summary

These alterations can be as follows:

  • 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.
  • A process created a hidden window;
  • Uses Windows utilities for basic functionality;
  • 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
  • Attempts to identify installed AV products by registry key;
  • Ciphering the papers located on the sufferer’s hard drive — so the victim can no longer use the data;
  • Preventing normal access to the sufferer’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

TrojanDropper:Win32/Bunitu.G

One of the most common channels where TrojanDropper:Win32/Bunitu.G Ransomware are injected are:

  • By ways of phishing emails;
  • As an effect of customer ending up on a resource that hosts a harmful software application;

As soon as the Trojan is successfully infused, it will either cipher the information on the sufferer’s PC or stop the device from functioning in a correct manner – while also putting a ransom note that discusses the need for the victims to effect the payment for the objective of decrypting the documents or restoring the file system back to the preliminary condition. In many circumstances, the ransom note will certainly show up when the client restarts the PC after the system has actually currently been damaged.

TrojanDropper:Win32/Bunitu.G distribution networks.

In different edges of the globe, TrojanDropper:Win32/Bunitu.G expands by leaps as well as bounds. However, the ransom money notes and tricks of obtaining the ransom quantity may vary depending upon particular neighborhood (regional) settings. The ransom notes and also techniques of extorting the ransom quantity may vary depending on particular neighborhood (regional) settings.

Ransomware injection

For example:

    Faulty alerts concerning unlicensed software application.

    In certain areas, the Trojans usually wrongfully report having found some unlicensed applications allowed on the victim’s gadget. The sharp after that demands the user to pay the ransom.

    Faulty statements concerning unlawful content.

    In nations where software piracy is less prominent, this approach is not as reliable for the cyber scams. Conversely, the TrojanDropper:Win32/Bunitu.G popup alert may incorrectly claim to be originating from a law enforcement institution and will report having located child pornography or other prohibited data on the tool.

    TrojanDropper:Win32/Bunitu.G popup alert may incorrectly claim to be obtaining from a regulation enforcement establishment and also will report having located child pornography or various other illegal data on the device. The alert will similarly consist of a need for the customer to pay the ransom.

Technical details

File Info:

crc32: A64A1233
md5: b51e78c07df8268b530a011970ad3fbf
name: B51E78C07DF8268B530A011970AD3FBF.mlw
sha1: c78ca7c6fe83666fceed413cb6d44e268cd1214b
sha256: f1b48329993c6332a6e7326f809573e055d1d021cb976a09ebff2e2984566f51
sha512: 88877cec3c64414065247d556edc6d68dfd05e644cc517f6600a45ed1dd5bfd9bbe8f4897d4c56c003381916b4cb175114ec790171dcf683153945c14e671683
ssdeep: 3072:Zg/kZb22ioTzCd3Nx+kNAaVH0FxRE4l5TuwWt+Ht+i:NbQoTzChNZAa2JxWQ
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2008-2010 ashampoo Technology GmbH Co. KG
InternalName: Cancel Autoplay 2
FileVersion: 2.0.0.0
CompanyName: Ashampoo
LegalTrademarks1: (
cel Autoplay 2: 0x06x01ProductVersion
.0: D
celAutoplay2.exe: Dx12x01ProductName
FileDescription: Cancel Autoplay 2
galTrademarks2: Px14x01OriginalFilename
Translation: 0x0409 0x04b0

TrojanDropper:Win32/Bunitu.G also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
Elasticmalicious (high confidence)
CynetMalicious (score: 100)
FireEyeGeneric.mg.b51e78c07df8268b
CAT-QuickHealRansom.Cerber.A4
McAfeeRansomware-GCQ!B51E78C07DF8
CylanceUnsafe
VIPRETrojan.Win32.Generic!BT
SangforTrojan.Win32.Save.a
K7AntiVirusTrojan ( 005224381 )
BitDefenderTrojan.Ransom.Cerber.1
K7GWTrojan ( 005224381 )
Cybereasonmalicious.07df82
BitDefenderThetaGen:NN.ZexaF.34590.sq1@a4CRcbki
CyrenW32/S-dc72fe42!Eldorado
SymantecPacked.Generic.459
ESET-NOD32a variant of Win32/Kryptik.FJFI
BaiduWin32.Trojan.Kryptik.bfj
APEXMalicious
AvastWin32:Malware-gen
KasperskyTrojan.Win32.Menti.gen
NANO-AntivirusTrojan.Win32.Menti.evjuwy
MicroWorld-eScanTrojan.Ransom.Cerber.1
RisingRansom.Cerber!8.3058 (C64:YzY0Oocfm/sVctdO)
Ad-AwareTrojan.Ransom.Cerber.1
EmsisoftTrojan.Ransom.Cerber.1 (B)
ComodoMalCrypt.Indus!@1qrzi1
F-SecureHeuristic.HEUR/AGEN.1121405
TrendMicroRansom_HPCERBER.SM60
McAfee-GW-EditionRansomware-GCQ!B51E78C07DF8
SophosML/PE-A + Mal/Cerber-B
SentinelOneStatic AI – Malicious PE
AviraHEUR/AGEN.1121405
MAXmalware (ai score=100)
Antiy-AVLTrojan/Win32.Menti
MicrosoftTrojanDropper:Win32/Bunitu.G
ArcabitTrojan.Ransom.Cerber.1
SUPERAntiSpywareRansom.Mobef/Variant
AhnLab-V3Win-Trojan/Lukitus2.Exp
ZoneAlarmTrojan.Win32.Menti.gen
GDataTrojan.Ransom.Cerber.1
Acronissuspicious
VBA32Trojan.Menti
ALYacTrojan.Ransom.Cerber.1
MalwarebytesMalware.AI.1875727330
PandaTrj/GdSda.A
TrendMicro-HouseCallRansom_HPCERBER.SM60
TencentWin32.Trojan.Generic.Pcsk
YandexTrojan.GenAsa!kc2WaeHXWLA
IkarusTrojan.Crypt
FortinetW32/Kryptik.HGZD!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml
CrowdStrikewin/malicious_confidence_100% (D)
Qihoo-360Win32/TrojanDownloader.Menti.HxQBuTsA

How to remove TrojanDropper:Win32/Bunitu.G virus?

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 TrojanDropper:Win32/Bunitu.G 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 TrojanDropper:Win32/Bunitu.G 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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