Worm:Win32/Mira

What is Worm:Win32/Mira infection?

In this post you will certainly discover concerning the definition of Worm:Win32/Mira and also its adverse influence on your computer. Such ransomware are a form of malware that is specified by online frauds to require paying the ransom by a sufferer.

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When we talk about the intrusion of unfamiliar programs into your computer’s work, the proverb “Forewarned is forearmed” describes the situation as accurately as possible. Gridinsoft Anti-Malware is exactly the tool that is always useful to have in your armory: fast, efficient, up-to-date. It is appropriate to use it as an emergency help at the slightest suspicion of infection.
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Most of the situations, Worm:Win32/Mira ransomware will instruct its victims to start funds move for the purpose of counteracting the changes that the Trojan infection has actually presented to the target’s device.

Worm:Win32/Mira Summary

These modifications 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.
  • A scripting utility was executed;
  • 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 execute a powershell command with suspicious parameter/s;
  • 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.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents found on the target’s hard disk drive — so the sufferer can no longer make use of 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.

Worm:Win32/Mira

The most normal networks where Worm:Win32/Mira Ransomware are infused are:

  • By ways of phishing emails;
  • As a consequence of individual winding up on a resource that organizes a malicious software program;

As quickly as the Trojan is efficiently injected, it will certainly either cipher the data on the target’s computer or protect against the tool from functioning in a proper fashion – while additionally positioning a ransom note that points out the requirement for the sufferers to impact the settlement for the purpose of decrypting the papers or recovering the data system back to the initial problem. In the majority of circumstances, the ransom note will turn up when the client reboots the COMPUTER after the system has actually already been damaged.

Worm:Win32/Mira circulation channels.

In various edges of the world, Worm:Win32/Mira expands by leaps and bounds. However, the ransom notes and also tricks of extorting the ransom money amount might vary depending on specific neighborhood (local) setups. The ransom money notes and tricks of obtaining the ransom amount may differ depending on specific neighborhood (regional) setups.

Ransomware injection

As an example:

    Faulty alerts concerning unlicensed software.

    In particular areas, the Trojans typically wrongfully report having discovered some unlicensed applications enabled on the victim’s device. The sharp then requires the customer to pay the ransom.

    Faulty declarations concerning prohibited web content.

    In nations where software application piracy is much less popular, this technique is not as efficient for the cyber fraudulences. Additionally, the Worm:Win32/Mira popup alert may falsely claim to be originating from a law enforcement establishment as well as will certainly report having situated child pornography or various other illegal data on the gadget.

    Worm:Win32/Mira popup alert might wrongly claim to be obtaining from a regulation enforcement establishment and will report having situated child pornography or various other illegal information on the gadget. The alert will likewise have a demand for the customer to pay the ransom.

Technical details

File Info:

crc32: D7936B11
md5: 55aab24b7fd1ecfc3652db2cc14dd67d
name: 55AAB24B7FD1ECFC3652DB2CC14DD67D.mlw
sha1: 0e1b5167510b66ddea58680de98ccfecdc5434df
sha256: 9b5757f9cd56b69c323397c1d0d368441e27d7a9b192aa7f44956233328b07ca
sha512: a95e5c710d41864c48f5bc394c62b0aa6bceec4b3af2adfcd9522cb46ea9b3e5f87a3dfc0c680d4518c6044df954424deaa779ead1736ca10622d06c66ff465c
ssdeep: 12288:8kZJLuMkG579NJdn0cYOGxoWMan/4/Js7DAhC:zZHHhhdn0cEh4/JwaC
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Worm:Win32/Mira also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 004fdf181 )
Cynet Malicious (score: 100)
ALYac Dropped:Trojan.GenericKDZ.69837
Cylance Unsafe
Zillya Trojan.Blocker.Win32.33802
Sangfor Trojan.Generic-Script.Save.7b7a01dd
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Ransom:Win32/Blocker.a498e2f0
K7GW Trojan ( 004fdf181 )
Cybereason malicious.b7fd1e
Cyren PSH/Dropper.A
Symantec ML.Attribute.HighConfidence
ESET-NOD32 PowerShell/TrojanDropper.Agent.D
APEX Malicious
Avast NSIS:Downloader-ACW [Trj]
Kaspersky Trojan-Ransom.Win32.Blocker.ifpe
BitDefender Dropped:Trojan.GenericKDZ.69837
MicroWorld-eScan Dropped:Trojan.GenericKDZ.69837
Tencent Win32.Trojan.Blocker.Swle
Ad-Aware Dropped:Trojan.GenericKDZ.69837
Sophos Mal/Generic-S
Comodo TrojWare.Script.TrojanDropper.Agent.D@7l67fr
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_Blocker.R002C0GKB20
McAfee-GW-Edition BehavesLike.Win32.Dropper.hh
FireEye Generic.mg.55aab24b7fd1ecfc
Emsisoft Dropped:Trojan.GenericKDZ.69837 (B)
SentinelOne Static AI – Malicious PE
Avira HEUR/AGEN.1116910
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Worm:Win32/Mira
AegisLab Trojan.Win32.Blocker.j!c
GData PowerShell.Trojan-Dropper.Agent.AIT
AhnLab-V3 Trojan/Win32.Agent.R348735
McAfee Artemis!55AAB24B7FD1
MAX malware (ai score=83)
VBA32 Trojan-Ransom.Blocker
Malwarebytes Allaple.Worm.DDoS.DDS
Panda Trj/CI.A
TrendMicro-HouseCall Ransom_Blocker.R002C0GKB20
Rising Worm.Allaple/VBS!1.BD75 (CLASSIC)
Ikarus Worm.Win32.Mira
Fortinet VBS/PowerShell.D!tr
AVG NSIS:Downloader-ACW [Trj]
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Blocker.HoMASOkA

How to remove Worm:Win32/Mira 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 Worm:Win32/Mira 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 Worm:Win32/Mira 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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