Trojan.Win32.Shelma.riw

What is Trojan.Win32.Shelma.riw infection?

In this short article you will certainly find about the interpretation of Trojan.Win32.Shelma.riw as well as its negative effect on your computer system. Such ransomware are a form of malware that is specified by on the internet fraudulences to demand paying the ransom money by a target.

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Most of the cases, Trojan.Win32.Shelma.riw ransomware will certainly instruct its sufferers to initiate funds transfer for the purpose of reducing the effects of the modifications that the Trojan infection has actually presented to the target’s gadget.

Trojan.Win32.Shelma.riw Summary

These adjustments can be as adheres to:

  • 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.
  • 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.

  • 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.
  • Unconventionial language used in binary resources: Spanish (Modern);
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • 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
  • Ciphering the files located on the target’s hard disk — so the sufferer can no more utilize the data;
  • Preventing normal accessibility to the victim’s workstation;

Trojan.Win32.Shelma.riw

One of the most normal channels whereby Trojan.Win32.Shelma.riw Ransomware are infused are:

  • By means of phishing e-mails;
  • As a repercussion of user ending up on a resource that organizes a harmful software program;

As soon as the Trojan is efficiently injected, it will either cipher the information on the sufferer’s PC or protect against the tool from functioning in an appropriate fashion – while additionally placing a ransom note that states the demand for the targets to effect the repayment for the function of decrypting the papers or bring back the file system back to the preliminary condition. In many instances, the ransom money note will certainly turn up when the client reboots the COMPUTER after the system has currently been harmed.

Trojan.Win32.Shelma.riw distribution networks.

In various edges of the globe, Trojan.Win32.Shelma.riw grows by jumps as well as bounds. However, the ransom money notes as well as tricks of obtaining the ransom quantity may differ relying on specific local (regional) setups. The ransom notes and also methods of extorting the ransom money quantity might differ depending on certain neighborhood (regional) settings.

Ransomware injection

For example:

    Faulty informs regarding unlicensed software program.

    In particular locations, the Trojans typically wrongfully report having detected some unlicensed applications enabled on the sufferer’s tool. The sharp then requires the user to pay the ransom money.

    Faulty statements concerning prohibited content.

    In countries where software piracy is less prominent, this method is not as effective for the cyber scams. Conversely, the Trojan.Win32.Shelma.riw popup alert might incorrectly assert to be stemming from a law enforcement institution and also will certainly report having situated youngster pornography or other illegal information on the device.

    Trojan.Win32.Shelma.riw popup alert may wrongly declare to be deriving from a law enforcement establishment and also will certainly report having located child pornography or various other prohibited information on the tool. The alert will likewise consist of a demand for the individual to pay the ransom.

Technical details

File Info:

crc32: 4EC0959F
md5: 7420f520d011ee2e769caf10000c538e
name: 7420F520D011EE2E769CAF10000C538E.mlw
sha1: 01d4c078253981034224066b4aba19c0db7c0feb
sha256: 2b14b839504da61823b27b5bfb5154b4cc4f71612107214bd1e47f181ad9f177
sha512: 278d5bb5a54f599fbc07ece3e28e311ff1a01b5fa91803cf1f266fe15458f1a50d3254822327f0d8e17489880a8c3f273da4fcfe9226694a13e8e62f211fd04f
ssdeep: 12288:PLo7smRHKuJFw22MD06V/73bxtOIFjqxS1x1UN2AfhEA2bQaHJpU:4EurYMDXVj3bx8IMAxufCAUbU
type: PE32 executable (GUI) Intel 80386, for MS Windows, MS CAB-Installer self-extracting archive

Version Info:

LegalCopyright: xa9 Microsoft Corporation. All rights reserved.
InternalName: Wextract
FileVersion: 8.00.7600.16385 (win7_rtm.090713-1255)
CompanyName: Microsoft Corporation
ProductName: Windowsxae Internet Explorer
ProductVersion: 8.00.7600.16385
FileDescription: Win32 Cabinet Self-Extractor
OriginalFilename: WEXTRACT.EXE
Translation: 0x0409 0x04b0

Trojan.Win32.Shelma.riw also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 004de9911 )
Elastic malicious (high confidence)
Cynet Malicious (score: 90)
ALYac Trojan.GenericKD.12040327
Cylance Unsafe
Sangfor Trojan.MSIL.Tiny.H
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Trojan:MSIL/Shelma.c90a264c
K7GW Trojan ( 004de9911 )
Cybereason malicious.0d011e
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of MSIL/Tiny.H
APEX Malicious
Avast Win32:TrojanX-gen [Trj]
Kaspersky Trojan.Win32.Shelma.riw
BitDefender Trojan.GenericKD.12040327
NANO-Antivirus Trojan.Win32.AD.eqkgyk
MicroWorld-eScan Trojan.GenericKD.12040327
Tencent Win32.Trojan.Razy.Aexk
Ad-Aware Trojan.GenericKD.12040327
Sophos Mal/Generic-S
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.Dropper.hc
FireEye Generic.mg.7420f520d011ee2e
Emsisoft Trojan.GenericKD.12040327 (B)
SentinelOne Static AI – Malicious SFX
Avira TR/AD.Swrort.ccibn
Microsoft Trojan:Win32/Swrort.A
AegisLab Trojan.Win32.Shelma.4!c
GData Trojan.GenericKD.12040327
McAfee Artemis!7420F520D011
MAX malware (ai score=81)
Panda Trj/CI.A
Rising Trojan.Tiny!8.4D4 (CLOUD)
Ikarus Trojan.MSIL.Tiny
MaxSecure Trojan.Malware.1728101.susgen
Fortinet MSIL/Tiny.H!tr
AVG Win32:TrojanX-gen [Trj]
Paloalto generic.ml
Qihoo-360 Win32/Ransom.DogHousePower.HwYDGRIA

How to remove Trojan.Win32.Shelma.riw 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

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.riw 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.Shelma.riw 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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