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

What is Trojan.Win32.Raas.a infection?

In this post you will locate concerning the interpretation of Trojan.Win32.Raas.a as well as its adverse influence on your computer. Such ransomware are a form of malware that is specified by online fraudulences to require paying the ransom money by a target.

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In the majority of the instances, Trojan.Win32.Raas.a virus will advise its sufferers to launch funds move for the purpose of neutralizing the amendments that the Trojan infection has actually introduced to the target’s device.

Trojan.Win32.Raas.a Summary

These adjustments can be as complies with:

  • Presents an Authenticode digital signature;
  • A process created a hidden window;
  • Uses Windows utilities for basic functionality;
  • Attempts to delete volume shadow copies;
  • 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
  • Exhibits possible ransomware file modification behavior;
  • Writes a potential ransom message to disk;
  • 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.
  • Collects information to fingerprint the system. There are behavioral human characteristics that can be used to digitally identify a person to grant access to systems, devices, or data. Unlike passwords and verification codes, fingerprints are fundamental parts of user’s identities. Among the threats blocked on biometric data processing and storage systems is spyware, the malware used in phishing attacks (mostly spyware downloaders and droppers), ransomware, and Banking Trojans as posing the greatest danger.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the files located on the victim’s hard drive — so the sufferer can no more utilize 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.


One of the most typical channels where Trojan.Win32.Raas.a Ransomware are injected are:

  • By ways of phishing e-mails;
  • As a repercussion of individual winding up on a source that holds a malicious software application;

As quickly as the Trojan is successfully infused, it will either cipher the data on the sufferer’s PC or stop the tool from working in a proper manner – while likewise placing a ransom note that discusses the need for the victims to impact the settlement for the purpose of decrypting the records or recovering the documents system back to the first condition. In a lot of instances, the ransom note will turn up when the customer reboots the PC after the system has actually currently been harmed.

Trojan.Win32.Raas.a distribution networks.

In different edges of the world, Trojan.Win32.Raas.a expands by jumps and bounds. Nevertheless, the ransom money notes and techniques of obtaining the ransom amount may vary depending on particular local (regional) setups. The ransom notes and methods of extorting the ransom money quantity might differ depending on specific regional (local) settings.

Ransomware injection

For instance:

    Faulty signals about unlicensed software program.

    In particular areas, the Trojans commonly wrongfully report having actually spotted some unlicensed applications allowed on the target’s tool. The sharp after that demands the customer to pay the ransom.

    Faulty declarations regarding illegal material.

    In countries where software piracy is much less prominent, this approach is not as efficient for the cyber scams. Conversely, the Trojan.Win32.Raas.a popup alert may incorrectly claim to be stemming from a police institution and will report having located youngster pornography or various other illegal data on the device.

    Trojan.Win32.Raas.a popup alert might wrongly declare to be obtaining from a regulation enforcement organization and will report having located youngster pornography or various other unlawful data on the tool. The alert will similarly have a need for the customer to pay the ransom.

Technical details

File Info:

crc32: 0D838918
md5: a24bdc5d9183800e47cea960d7673661
name: A24BDC5D9183800E47CEA960D7673661.mlw
sha1: 5fd244accafad44b72ccc882e9a278626920e7de
sha256: 032cd02d9cb4c40c3fbe02356b34408aebe1681d01a5a327f41179149812fa7f
sha512: f8c868644587ac780410358de727b58a58fd390ad2421f7b1fd0d5fac797f96b86b1f2eb85c17889411890ffcd981ca332151a171a55c39393a57f8bba1119c8
ssdeep: 3072:J5Of0m11lbOyaV2rKJIFCOL6pswNBhX1VpCLZhwj20QImOq5MpVmP5YUaLQZ/gp:aMH/IH6NBM+y0s5Ssdqp
type: PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows

Version Info:

0: [No Data]

Trojan.Win32.Raas.a also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Unwanted-Program ( 004d53f61 )
DrWeb Trojan.MulDrop6.12719
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.Sarento.MUE.JV7
Cylance Unsafe
Zillya Trojan.SarentoCRTD.Win32.5124
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Trojan:Win32/Sarento.47e82646
K7GW Unwanted-Program ( 004d53f61 )
Cybereason malicious.ccafad
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Filecoder.NFP
APEX Malicious
Avast Win32:Sarento-A [Trj]
ClamAV Win.Ransomware.Sarento-7492109-0
Kaspersky Trojan.Win32.Raas.a
NANO-Antivirus Trojan.Win32.Raas.eblmhw
Tencent Win32.Init..cjlz
Sophos Mal/Generic-R + Troj/Ransom-BRE
Comodo Malware@#3bmqqt53cuxgk
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition Artemis!Trojan
Jiangmin Variant.Symmi.di
Avira HEUR/AGEN.1137948
Antiy-AVL Trojan/Generic.ASMalwS.17C6990
Kingsoft Win32.Troj.Raas.a.(kcloud)
Microsoft Ransom:Win32/Sarento.B
AegisLab Trojan.Win32.Raas.4!c
ZoneAlarm Trojan.Win32.Raas.a
GData Win32.Trojan-Ransom.RaaS.F
AhnLab-V3 Trojan/Win32.Sarento.R169806
McAfee Artemis!A24BDC5D9183
VBA32 BScope.Trojan.Raas
Malwarebytes Malware.AI.1851629019
Panda Trj/CI.A
Rising Ransom.FileCryptor!8.1A7 (CLOUD)
Yandex Trojan.GenAsa!qe4TqecDLh8
Ikarus Trojan-Ransom.RaaS
AVG Win32:Sarento-A [Trj]

How to remove Trojan.Win32.Raas.a 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.Raas.a 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.Raas.a you can always ask me in the comments for getting help.

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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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