Trojan:Win32/Bluether.A!dha

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

What is Trojan:Win32/Bluether.A!dha infection?

In this article you will certainly locate concerning the meaning of Trojan:Win32/Bluether.A!dha as well as its unfavorable influence on your computer. Such ransomware are a kind of malware that is clarified by on-line scams to require paying the ransom money by a target.

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Most of the cases, Trojan:Win32/Bluether.A!dha ransomware will certainly instruct its targets to start funds move for the objective of neutralizing the modifications that the Trojan infection has actually introduced to the sufferer’s device.

Trojan:Win32/Bluether.A!dha 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.
  • 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.
  • 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.
  • Deletes its original binary from disk;
  • 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.
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers found on the victim’s hard disk — so the sufferer can no longer use the data;
  • Preventing normal access 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.
Similar behavior
Related domains
blognews.onmypc.org Trojan-Ransom.Win32.Blocker.fwvh
ametoy.acmetoy.com Trojan-Ransom.Win32.Blocker.fwvh

Trojan:Win32/Bluether.A!dha

The most normal channels whereby Trojan:Win32/Bluether.A!dha Ransomware are injected are:

  • By means of phishing e-mails;
  • As a repercussion of individual winding up on a source that hosts a destructive software program;

As quickly as the Trojan is effectively infused, it will either cipher the information on the target’s PC or prevent the device from functioning in a correct way – while additionally putting a ransom note that discusses the demand for the victims to impact the repayment for the function of decrypting the documents or restoring the file system back to the first problem. In many instances, the ransom note will turn up when the client reboots the PC after the system has actually currently been damaged.

Trojan:Win32/Bluether.A!dha distribution channels.

In various corners of the globe, Trojan:Win32/Bluether.A!dha expands by jumps as well as bounds. However, the ransom money notes and methods of obtaining the ransom money quantity may vary depending upon certain local (regional) setups. The ransom money notes and also methods of extorting the ransom money quantity may differ depending on certain regional (regional) settings.

Ransomware injection

As an example:

    Faulty informs regarding unlicensed software program.

    In specific locations, the Trojans often wrongfully report having actually discovered some unlicensed applications allowed on the sufferer’s tool. The alert after that requires the customer to pay the ransom.

    Faulty declarations concerning prohibited material.

    In countries where software piracy is less prominent, this approach is not as effective for the cyber fraudulences. Additionally, the Trojan:Win32/Bluether.A!dha popup alert may falsely assert to be deriving from a police establishment as well as will report having situated youngster pornography or other illegal data on the device.

    Trojan:Win32/Bluether.A!dha popup alert might wrongly claim to be deriving from a law enforcement institution as well as will certainly report having situated kid pornography or other illegal data on the gadget. The alert will in a similar way consist of a need for the user to pay the ransom money.

Technical details

File Info:

crc32: E1B18C6D
md5: 4bcb99623c05fc2abaa1b4090b0bee6c
name: 4BCB99623C05FC2ABAA1B4090B0BEE6C.mlw
sha1: 76244e06e6a1eee5b3db15ca00b1896f0fc53dd4
sha256: a384e6d697740465196bdb53ed47e31e4ddae5fcbd7543406456acbe1c00882a
sha512: 97356d4c8933e5ae2cde9b00450a619f2ae84bf81b73969d9f2a4dd5f043d8251c8b0bec22e709828718b1726fe623c917a8a9bf0eca59845c70ac9cc0192f26
ssdeep: 384:TS4mQCzNgIyU91N1FpCmdoXemuanYDddFmHUi85FSG3S/YxmszE/ZiJI:TXCJghiN1h+XeZZg0bSwY8YY
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright:
InternalName: Bluthmon.exe
FileVersion: 3, 7, 5, 13
CompanyName: Mototech.co
PrivateBuild:
LegalTrademarks:
Comments:
ProductName: Bluetooth Monitor
SpecialBuild:
ProductVersion: 3, 7, 5, 13
FileDescription: Bluetooth Monitor
OriginalFilename: Motomon.exe
Translation: 0x0409 0x04b0

Trojan:Win32/Bluether.A!dha also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Ser.Mikey.1391
FireEye Generic.mg.4bcb99623c05fc2a
McAfee GenericRXEX-WK!4BCB99623C05
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
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.Win32.Blocker.fwvh
Alibaba Trojan:Win32/Blocker.f454d9af
NANO-Antivirus Trojan.Win32.Agent.dgrlml
AegisLab Trojan.Win32.Blocker.j!c
Rising Trojan.Bluether!8.1E8D (TFE:5:wgs0Nqp92wR)
Ad-Aware Gen:Variant.Ser.Mikey.1391
Sophos Mal/Generic-S + Troj/Bluether-B
Comodo Malware@#30v74ifpz5pag
F-Secure Heuristic.HEUR/AGEN.1111002
DrWeb Trojan.DownLoader11.40674
Zillya Trojan.Blocker.Win32.25518
TrendMicro BKDR_PLEAD.SMZTDK-C
McAfee-GW-Edition GenericRXEX-WK!4BCB99623C05
Emsisoft Gen:Variant.Ser.Mikey.1391 (B)
Ikarus Trojan-Ransom.Blocker
Jiangmin Trojan.Blocker.d
Avira HEUR/AGEN.1111002
MAX malware (ai score=100)
Antiy-AVL Trojan[Ransom]/Win32.Blocker
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Trojan:Win32/Bluether.A!dha
Arcabit Trojan.Ser.Mikey.D56F
ZoneAlarm Trojan-Ransom.Win32.Blocker.fwvh
GData Gen:Variant.Ser.Mikey.1391
Cynet Malicious (score: 85)
AhnLab-V3 Malware/Win32.Generic.C636715
BitDefenderTheta Gen:NN.ZexaF.34590.cq0@aSM@Vcli
ALYac Gen:Variant.Ser.Mikey.1391
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.Pgnj
Yandex Trojan.Blocker!jebDcCoRy/4
Fortinet W32/Agent.WMZ!tr
AVG Win32:Malware-gen
Cybereason malicious.23c05f
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Blocker.HwcB0i8A

How to remove Trojan:Win32/Bluether.A!dha 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 Trojan:Win32/Bluether.A!dha 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/Bluether.A!dha 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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