Ransom:Win32/Troldesh.A!bit

Written by Robert Bailey

What is Ransom:Win32/Troldesh.A!bit infection?

In this post you will find regarding the interpretation of Ransom:Win32/Troldesh.A!bit and its negative effect on your computer system. Such ransomware are a kind 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 instances, Ransom:Win32/Troldesh.A!bit virus will certainly instruct its sufferers to initiate funds move for the objective of reducing the effects of the modifications that the Trojan infection has actually presented to the target’s tool.

Ransom:Win32/Troldesh.A!bit Summary

These adjustments 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.
  • Presents an Authenticode digital signature;
  • 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.

  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Collects information about installed applications;
  • 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.
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files situated on the target’s hard disk — so the sufferer can no more use the data;
  • Preventing regular 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.
Similar behavior
Related domains
z.whorecord.xyz Ransom.FileCryptor
a.tomx.xyz Ransom.FileCryptor

Ransom:Win32/Troldesh.A!bit

The most common channels where Ransom:Win32/Troldesh.A!bit Trojans are infused are:

  • By methods of phishing emails;
  • As an effect of user ending up on a resource that holds a destructive software application;

As soon as the Trojan is efficiently injected, it will either cipher the data on the target’s computer or stop the device from operating in a correct way – while additionally positioning a ransom note that points out the demand for the victims to effect the settlement for the objective of decrypting the documents or recovering the file system back to the first problem. In a lot of circumstances, the ransom money note will come up when the customer reboots the COMPUTER after the system has currently been damaged.

Ransom:Win32/Troldesh.A!bit distribution networks.

In various corners of the globe, Ransom:Win32/Troldesh.A!bit expands by jumps and bounds. However, the ransom notes as well as tricks of obtaining the ransom money amount may vary depending upon particular regional (local) setups. The ransom money notes as well as methods of extorting the ransom money amount might differ depending on specific local (local) settings.

Ransomware injection

For instance:

    Faulty informs regarding unlicensed software program.

    In certain areas, the Trojans typically wrongfully report having discovered some unlicensed applications enabled on the victim’s tool. The alert after that demands the individual to pay the ransom money.

    Faulty statements concerning unlawful material.

    In nations where software program piracy is less prominent, this technique is not as reliable for the cyber fraudulences. Additionally, the Ransom:Win32/Troldesh.A!bit popup alert might incorrectly claim to be originating from a law enforcement establishment and will certainly report having situated youngster pornography or various other unlawful data on the tool.

    Ransom:Win32/Troldesh.A!bit popup alert may incorrectly claim to be acquiring from a legislation enforcement establishment and will report having situated kid pornography or various other illegal information on the tool. The alert will likewise include a demand for the customer to pay the ransom.

Technical details

File Info:

crc32: E5A4209F
md5: 985458b52c78c0ee2356cc25172f7277
name: sserv.jpg
sha1: fc487008021692b99267447bb9ac73755cfa2997
sha256: 981e0d084f78e268294fe3c0a5ecc4869bb189aff927a6b6a5da0cad61b4fca4
sha512: 4ebfe198bd474fdb8a7d282cd52442f2cc00bf3a636cb6efc40e4b98a780eabb0efd2f3a7e872857e5190aa6f4ab73d940c2935fedacec22e7b265ff96cda66d
ssdeep: 24576:AinBv073hiuK+BP9lbifbKw1ohJkdV4KrY:Am0jsuKWlmOrhJIV4d
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2014 AVG Technologies CZ, s.r.o.
InternalName: VistaAux.exe
FileVersion: 17.3.3443.0
CompanyName: AVG Technologies CZ, s.r.o.
ProductName: AVG Internet Security System
ProductVersion: 17.3.3443.0
FileDescription: AVG Virus scanner
OriginalFilename: VistaAux.exe
Translation: 0x0409 0x04e4

Ransom:Win32/Troldesh.A!bit also known as:

GridinSoft Trojan.Ransom.Gen
MicroWorld-eScan Trojan.GenericKD.31361640
FireEye Generic.mg.985458b52c78c0ee
CAT-QuickHeal Trojan.IGENERIC
McAfee Generic.buc
Malwarebytes Ransom.FileCryptor
VIPRE Win32.Malware!Drop
AegisLab Trojan.Win32.Shade.tpKI
K7AntiVirus Trojan ( 004b8aa51 )
BitDefender Trojan.GenericKD.31361640
K7GW Trojan ( 004b8aa51 )
Cybereason malicious.52c78c
Invincea heuristic
F-Prot W32/Shade.O
Symantec Downloader
APEX Malicious
Paloalto generic.ml
GData Win32.Trojan-Ransom.Shade.3A1UFU
Kaspersky Trojan-Ransom.Win32.Shade.pbx
Alibaba Ransom:Win32/Shade.fdcd1b64
NANO-Antivirus Trojan.Win32.Shade.fkklvp
ViRobot Trojan.Win32.S.Ransom.1066248.A
Rising Ransom.Troldesh!8.5D1 (KTSE)
Ad-Aware Trojan.GenericKD.31361640
Sophos Troj/Xtbl-BD
Comodo Malware@#da0t3rgfpq7f
F-Secure Trojan.TR/FileCoder.AJ
DrWeb Trojan.Encoder.26601
Zillya Trojan.Shade.Win32.871
TrendMicro TROJ_FRS.0NA103KK18
McAfee-GW-Edition Generic.buc
Trapmine malicious.moderate.ml.score
Emsisoft Trojan.GenericKD.31361640 (B)
Ikarus Ransom.Win32.Troldesh
Cyren W32/Trojan.EIIA-8447
Jiangmin Trojan.Shade.rv
Webroot W32.Adware.Gen
Avira TR/FileCoder.AJ
Antiy-AVL Trojan[Ransom]/Win32.Shade
Endgame malicious (high confidence)
Arcabit Trojan.Generic.D1DE8A68
SUPERAntiSpyware Ransom.MalPack/Variant
ZoneAlarm Trojan-Ransom.Win32.Shade.pbx
Microsoft Ransom:Win32/Troldesh.A!bit
AhnLab-V3 Malware/Win32.RL_Generic.R264656
Acronis suspicious
VBA32 BScope.TrojanRansom.Shade
ALYac Trojan.Ransom.Shade
MAX malware (ai score=100)
Cylance Unsafe
Panda Trj/WLT.E
Zoner Trojan.Win32.74252
ESET-NOD32 Win32/Filecoder.Shade.B
TrendMicro-HouseCall TROJ_FRS.0NA103KK18
Yandex Trojan.Shade!
SentinelOne DFI – Malicious PE
eGambit PE.Heur.InvalidSig
Fortinet W32/Shade.BD!tr
AVG Win32:Malware-gen
Avast Win32:Malware-gen
Qihoo-360 Win32/Trojan.Ransom.d4b

How to remove Ransom:Win32/Troldesh.A!bit virus?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
Reasons why I would recommend GridinSoft1

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 install-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 Ransom:Win32/Troldesh.A!bit 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:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Ransom:Win32/Troldesh.A!bit 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/products/

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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