Trojan.Win32.Shelma

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

What is Trojan.Win32.Shelma infection?

In this post you will discover regarding the interpretation of Trojan.Win32.Shelma as well as its adverse influence on your computer system. Such ransomware are a type of malware that is specified by online scams to demand paying the ransom by a target.

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In the majority of the situations, Trojan.Win32.Shelma virus will certainly advise its victims to start funds move for the purpose of neutralizing the amendments that the Trojan infection has presented to the target’s gadget.

Trojan.Win32.Shelma 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.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files found on the victim’s hard drive — so the target can no longer make use of the data;
  • Preventing normal accessibility 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.

Trojan.Win32.Shelma

One of the most typical channels through which Trojan.Win32.Shelma are injected are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As a repercussion of user ending up on a source that hosts a malicious software application;

As quickly as the Trojan is effectively infused, it will certainly either cipher the information on the victim’s PC or protect against the gadget from working in a correct manner – while also putting a ransom note that mentions the demand for the victims to effect the repayment for the function of decrypting the records or recovering the data system back to the first problem. In most instances, the ransom note will certainly come up when the customer restarts the PC after the system has actually already been damaged.

Trojan.Win32.Shelma circulation networks.

In various corners of the globe, Trojan.Win32.Shelma grows by leaps and also bounds. Nonetheless, the ransom money notes as well as methods of obtaining the ransom money quantity may differ depending on specific neighborhood (regional) setups. The ransom notes and methods of obtaining the ransom amount might differ depending on certain neighborhood (local) settings.

Ransomware injection

For instance:

    Faulty signals concerning unlicensed software program.

    In specific locations, the Trojans commonly wrongfully report having actually detected some unlicensed applications made it possible for on the target’s gadget. The alert after that demands the individual to pay the ransom.

    Faulty declarations concerning unlawful material.

    In nations where software application piracy is less preferred, this technique is not as reliable for the cyber frauds. Alternatively, the Trojan.Win32.Shelma popup alert might incorrectly claim to be deriving from a police establishment as well as will certainly report having situated youngster pornography or various other illegal information on the gadget.

    Trojan.Win32.Shelma popup alert may incorrectly declare to be deriving from a regulation enforcement establishment as well as will report having located child pornography or other unlawful data on the gadget. The alert will similarly have a demand for the user to pay the ransom.

Technical details

File Info:

crc32: 7FA0547D
md5: 557d6164ad1fdfdcead554c852572965
name: 557D6164AD1FDFDCEAD554C852572965.mlw
sha1: 8c6945599ea4743e811260d29766e4f8689a76e2
sha256: 38d90a4e20c8435576996987e82520ce502ee35798e8b089379af0d0986a82c1
sha512: 24118d9842ebdfe2f42c9e8398fbcd8570fe63062446043c43cc2f79a00bac20918401acd8fac6b1bb06cd0bc04df622b652f29ab3adc036ed2072babc1fb257
ssdeep: 6144:KguGr9GiIYds5wIaAzcW+rXYoIov888888888888W88888888888Ne:KSxGfij888888888888W88888888888I
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Comfort Software Group
FileVersion: 4.0.1.0
CompanyName: Comfort Software Group
Comments: This installation was built with Inno Setup.
ProductName: Free Alarm Clock 4.0.1.0
ProductVersion: 4.0.1.0
FileDescription: Free Alarm Clock 4.0.1.0 Setup
Translation: 0x0000 0x04b0

Trojan.Win32.Shelma also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
ALYac Trojan.GenericKD.45857994
Cylance Unsafe
Sangfor Riskware.Win32.Wacapew.C
Symantec ML.Attribute.HighConfidence
APEX Malicious
Avast FileRepMalware
Kaspersky HEUR:Trojan.Win32.Shelma.gen
BitDefender Trojan.GenericKD.45857994
MicroWorld-eScan Trojan.GenericKD.45857994
Ad-Aware Trojan.GenericKD.45857994
Sophos Generic PUA IM (PUA)
McAfee-GW-Edition BehavesLike.Win32.Infected.dh
FireEye Trojan.GenericKD.45857994
Emsisoft Trojan.GenericKD.45857994 (B)
Microsoft Program:Win32/Wacapew.C!ml
Arcabit Trojan.Generic.D2BBBCCA
AegisLab Trojan.Win32.Shelma.4!c
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Trojan.GenericKD.45857994
McAfee Artemis!557D6164AD1F
MAX malware (ai score=80)
TrendMicro-HouseCall TROJ_GEN.R002H09CA21
Rising Trojan.Shelma!8.1A3D (CLOUD)
Yandex Trojan.Agent!OBIV2nDfJOE
AVG FileRepMalware
Qihoo-360 Win32/Ransom.DogHousePower.HgIASO4A

How to remove Trojan.Win32.Shelma 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.Shelma 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 Trojan.Win32.Shelma 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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