What is Ransom:Win32/Critroni.A infection?

In this article you will locate about the definition of Ransom:Win32/Critroni.A as well as its adverse impact on your computer. Such ransomware are a kind of malware that is elaborated by on-line scams to demand paying the ransom money by a sufferer.

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Most of the instances, Ransom:Win32/Critroni.A ransomware will certainly instruct its victims to start funds transfer for the objective of neutralizing the amendments that the Trojan infection has presented to the target’s tool.

Ransom:Win32/Critroni.A 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.
  • 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.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Creates a copy of itself;
  • 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.
  • Ciphering the papers situated on the sufferer’s hard drive — so the victim can no longer utilize the information;
  • Preventing routine 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.


The most common channels whereby Ransom:Win32/Critroni.A Ransomware Trojans are injected are:

  • By methods of phishing emails;
  • As an effect of customer winding up on a resource that holds a destructive software;

As quickly as the Trojan is successfully injected, it will certainly either cipher the information on the sufferer’s PC or stop the tool from working in a correct manner – while also positioning a ransom money note that discusses the demand for the targets to effect the payment for the objective of decrypting the documents or bring back the data system back to the initial condition. In most instances, the ransom money note will come up when the customer reboots the COMPUTER after the system has currently been damaged.

Ransom:Win32/Critroni.A circulation channels.

In different corners of the world, Ransom:Win32/Critroni.A grows by jumps as well as bounds. Nevertheless, the ransom money notes as well as methods of extorting the ransom amount might differ depending on specific regional (regional) settings. The ransom notes as well as techniques of obtaining the ransom amount might differ depending on specific neighborhood (regional) settings.

Ransomware injection

As an example:

    Faulty informs regarding unlicensed software application.

    In specific locations, the Trojans usually wrongfully report having actually detected some unlicensed applications enabled on the target’s tool. The sharp after that demands the individual to pay the ransom money.

    Faulty statements about prohibited content.

    In countries where software piracy is less prominent, this technique is not as efficient for the cyber frauds. Conversely, the Ransom:Win32/Critroni.A popup alert might incorrectly claim to be stemming from a law enforcement institution as well as will report having situated kid porn or other illegal data on the tool.

    Ransom:Win32/Critroni.A popup alert might incorrectly claim to be deriving from a regulation enforcement institution and will certainly report having situated youngster pornography or various other prohibited data on the tool. The alert will similarly consist of a demand for the customer to pay the ransom money.

Technical details

File Info:

crc32: 31D489F5
md5: bfe8d1839845f64ab2f18f76b2ea55f1
name: BFE8D1839845F64AB2F18F76B2EA55F1.mlw
sha1: f63d97fdad02f358ebffc1a1c889446bf04d6e84
sha256: 0f718f875bda8343658f8e7ae0054d9c84ed2de1cfa2e8a7ece80016de99a712
sha512: a78cfe8680ab6d5593b1fe078596785e7ee2dcccf84498b157fe59d60bca91d6ec54c8f6049131a34a3ff219bd62dc38cdafd98e26a7e1d0f8e3405cf1f0e1af
ssdeep: 12288:PXbcQVHT63r93Y8wfF0ITxwT05RMlq6LanqFidqOMjZD:jc4z63r9IDF0INeIRMUdsMfOZD
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Ransom:Win32/Critroni.A also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Trojan ( 0040fa101 )
Elastic malicious (high confidence)
DrWeb Trojan.Siggen6.26268
Cynet Malicious (score: 100)
ALYac Gen:Heur.Kelios.1
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Trojan:Win32/CTBLocker.10e0903a
K7GW Trojan ( 0040fa101 )
Cybereason malicious.39845f
Cyren W32/Ransom.BD.gen!Eldorado
Symantec Ransom.CTBLocker
ESET-NOD32 a variant of Win32/Filecoder.CTBLocker.A
APEX Malicious
Avast Win32:Critroni-C [Trj]
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Heur.Kelios.1
NANO-Antivirus Trojan.Win32.MlwGen.dkijzb
MicroWorld-eScan Gen:Heur.Kelios.1
Tencent Win32.Trojan.Generic.Plkq
Ad-Aware Gen:Heur.Kelios.1
Sophos ML/PE-A + Mal/Harnig-B
Comodo Malware@#1x2naoejj2qfv
BitDefenderTheta AI:Packer.7801D75C1E
VIPRE Trojan.Win32.Critroni.a (v)
TrendMicro Ransom_CRYPCBT.SMA
McAfee-GW-Edition Ransom-FTX!BFE8D1839845
FireEye Generic.mg.bfe8d1839845f64a
Emsisoft Gen:Heur.Kelios.1 (B)
SentinelOne Static AI – Malicious PE
Avira TR/Crypt.ZPACK.Gen
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Ransom:Win32/Critroni.A
AegisLab Trojan.Win32.Onion.j!c
GData Gen:Heur.Kelios.1
AhnLab-V3 Trojan/Win32.Agent.C430204
Acronis suspicious
McAfee Ransom-FTX!BFE8D1839845
MAX malware (ai score=88)
VBA32 BScope.Trojan.Encoder
Malwarebytes Malware.Heuristic.1004
Panda Trj/Genetic.gen
TrendMicro-HouseCall Ransom_CRYPCBT.SMA
Rising Ransom.Onion!8.478 (TFE:2:86Bq5gk93lN)
Yandex Trojan.GenAsa!VwU6Lt63MzM
Ikarus Trojan-Ransom.Onion
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Kryptik.DNKK!tr
AVG Win32:Critroni-C [Trj]
Paloalto generic.ml
Qihoo-360 Win32/Trojan.Generic.HxQBpDsA

How to remove Ransom:Win32/Critroni.A ransomware?

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 Ransom:Win32/Critroni.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:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Ransom:Win32/Critroni.A you can always ask me in the comments for getting help.

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  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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