Ransom:Win32/Criakl.A

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

What is Ransom:Win32/Criakl.A infection?

In this short article you will certainly locate regarding the definition of Ransom:Win32/Criakl.A and also its unfavorable influence on your computer. Such ransomware are a type of malware that is clarified by on-line scams to require paying the ransom by a victim.

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Most of the cases, Ransom:Win32/Criakl.A virus will certainly advise its sufferers to initiate funds move for the purpose of reducing the effects of the changes that the Trojan infection has actually presented to the sufferer’s tool.

Ransom:Win32/Criakl.A Summary

These adjustments can be as complies with:

  • Injection (inter-process);
  • 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.
  • Injection with CreateRemoteThread in a remote process;
  • 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.
  • Unconventionial language used in binary resources: Russian;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses Windows utilities for basic functionality;
  • Queries information on disks, possibly for anti-virtualization. Since VMs share the same disk space so it is expected that they won’t be getting as much space as an application running on
    native hardware will have access to.
  • Checks for the presence of known windows from debuggers and forensic tools;
  • Checks for the presence of known devices from debuggers and forensic tools;
  • Harvests information related to installed mail clients;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files located on the sufferer’s hard disk drive — so the target can no longer use the information;
  • Preventing regular accessibility to the sufferer’s workstation;

Ransom:Win32/Criakl.A

One of the most regular channels whereby Ransom:Win32/Criakl.A Trojans are infused 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 customer ending up on a source that organizes a malicious software;

As soon as the Trojan is successfully infused, it will either cipher the data on the target’s computer or avoid the device from functioning in a correct manner – while additionally putting a ransom note that discusses the demand for the sufferers to impact the payment for the purpose of decrypting the records or recovering the documents system back to the first condition. In many circumstances, the ransom money note will certainly come up when the customer reboots the PC after the system has actually already been harmed.

Ransom:Win32/Criakl.A distribution networks.

In various edges of the globe, Ransom:Win32/Criakl.A grows by jumps and bounds. Nonetheless, the ransom notes as well as methods of extorting the ransom money amount may differ depending upon specific local (regional) settings. The ransom notes as well as methods of obtaining the ransom money quantity might vary depending on specific local (local) settings.

Ransomware injection

As an example:

    Faulty notifies regarding unlicensed software program.

    In particular areas, the Trojans commonly wrongfully report having actually discovered some unlicensed applications enabled on the target’s gadget. The sharp then demands the user to pay the ransom.

    Faulty declarations concerning illegal content.

    In nations where software application piracy is much less preferred, this technique is not as effective for the cyber scams. Conversely, the Ransom:Win32/Criakl.A popup alert might wrongly declare to be deriving from a police institution as well as will certainly report having situated child porn or various other unlawful information on the device.

    Ransom:Win32/Criakl.A popup alert might falsely assert to be deriving from a regulation enforcement organization and will certainly report having located kid porn or other unlawful information on the device. The alert will in a similar way consist of a demand for the individual to pay the ransom money.

Technical details

File Info:

crc32: F74E08B8
md5: 4611dad78021e5cc076dd68405e33a09
name: 4611DAD78021E5CC076DD68405E33A09.mlw
sha1: 16cb8c6aa1f44743b41802e2481129747866ffd6
sha256: 92b822bb1c60c724db11433c5f0557f8bb7dd2b6491a9898267de7c7ba7b333e
sha512: d7df79aa4b806f77b468468d78393ed4e7d4888d96a18104efa07c82ad57aff08c18654b4129896023b09c6fce2048d63e58a3c3580df47b685955a0a86297de
ssdeep: 24576:EXHaVvBuIpTATyqjQtDaO/BoEVJFBHdwZqqFkKlz2r3uR6p40Tugwe+y7:EXCvBukPtDxeIJwEaxgxp40TI
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Ransom:Win32/Criakl.A also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 004c15901 )
Elasticmalicious (high confidence)
CynetMalicious (score: 100)
ALYacTrojan.GenericKD.44382199
CylanceUnsafe
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (W)
AlibabaRansom:Win32/Criakl.cde96633
K7GWTrojan ( 004c15901 )
Cybereasonmalicious.78021e
CyrenW32/Banker.BF.gen!Eldorado
SymantecML.Attribute.HighConfidence
ESET-NOD32Win32/Filecoder.CQ
APEXMalicious
AvastWin32:Malware-gen
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderTrojan.GenericKD.44382199
NANO-AntivirusTrojan.Win32.Filecoder.czyaxv
MicroWorld-eScanTrojan.GenericKD.44382199
TencentWin32.Trojan.Filecoder.Pall
Ad-AwareTrojan.GenericKD.44382199
SophosMal/Generic-S
ComodoMalware@#2k5vv4afja4gg
BitDefenderThetaGen:NN.ZexaF.34628.ETW@aiIkARjc
VIPRETrojan.Win32.Generic.pak!cobra
McAfee-GW-EditionBehavesLike.Win32.Benjamin.tc
FireEyeGeneric.mg.4611dad78021e5cc
EmsisoftTrojan.GenericKD.44382199 (B)
SentinelOneStatic AI – Suspicious PE
JiangminTrojan.Generic.bkacb
AviraHEUR/AGEN.1130027
eGambitUnsafe.AI_Score_100%
MicrosoftRansom:Win32/Criakl.A
ArcabitTrojan.Generic.D2A537F7
AegisLabTrojan.Win32.Generic.4!c
GDataTrojan.GenericKD.44382199
AhnLab-V3Trojan/Win32.Gen
McAfeeGenericR-APD!4611DAD78021
MAXmalware (ai score=100)
VBA32TScope.Malware-Cryptor.SB
MalwarebytesMalware.Heuristic.1003
PandaTrj/CI.A
RisingRansom.Criakl!8.1B3B (CLOUD)
YandexTrojan.Filecoder!No1qqvkeFYM
IkarusBackdoor.Win32.Fynloski
MaxSecureTrojan.Malware.300983.susgen
FortinetW32/Filecoder.CQ!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml

How to remove Ransom:Win32/Criakl.A 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 Ransom:Win32/Criakl.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 Ransom:Win32/Criakl.A 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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