Ransom:Win32/Crilock.B

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

What is Ransom:Win32/Crilock.B infection?

In this article you will certainly discover regarding the definition of Ransom:Win32/Crilock.B as well as its adverse influence on your computer system. Such ransomware are a form of malware that is specified by on the internet frauds to require paying the ransom money by a target.

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Most of the cases, Ransom:Win32/Crilock.B virus will certainly instruct its targets to start funds transfer for the objective of reducing the effects of the changes that the Trojan infection has actually presented to the victim’s device.

Ransom:Win32/Crilock.B Summary

These modifications can be as complies with:

  • 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.
  • A process created a hidden window;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • 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.
  • Ciphering the files found on the target’s hard disk drive — so the target can no longer utilize the data;
  • Preventing normal accessibility to the victim’s workstation;
Similar behavior
Related domains
z.whorecord.xyz Win32/Ransom.Criakl.HgIASOkA
a.tomx.xyz Win32/Ransom.Criakl.HgIASOkA

Ransom:Win32/Crilock.B

The most regular networks where Ransom:Win32/Crilock.B 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 consequence of user winding up on a resource that holds a destructive software application;

As quickly as the Trojan is effectively injected, it will certainly either cipher the information on the victim’s PC or prevent the device from working in a correct way – while likewise placing a ransom note that points out the requirement for the sufferers to effect the settlement for the function of decrypting the files or recovering the documents system back to the preliminary condition. In many instances, the ransom money note will come up when the client restarts the PC after the system has actually already been damaged.

Ransom:Win32/Crilock.B circulation channels.

In numerous edges of the globe, Ransom:Win32/Crilock.B grows by leaps and also bounds. However, the ransom notes and tricks of obtaining the ransom money quantity might differ depending on certain neighborhood (local) settings. The ransom money notes and tricks of extorting the ransom amount may differ depending on specific neighborhood (regional) settings.

Ransomware injection

As an example:

    Faulty informs regarding unlicensed software.

    In certain locations, the Trojans frequently wrongfully report having actually identified some unlicensed applications made it possible for on the victim’s device. The alert after that requires the individual to pay the ransom.

    Faulty statements regarding prohibited web content.

    In nations where software piracy is much less prominent, this approach is not as efficient for the cyber scams. Conversely, the Ransom:Win32/Crilock.B popup alert might incorrectly claim to be originating from a police institution as well as will report having located child pornography or other illegal information on the device.

    Ransom:Win32/Crilock.B popup alert might falsely declare to be obtaining from a regulation enforcement institution and also will certainly report having situated child porn or various other unlawful information on the tool. The alert will similarly consist of a requirement for the customer to pay the ransom.

Technical details

File Info:

crc32: 18E8DCBD
md5: 938d5418d61936b547f3a37ce44cbf5d
name: 938D5418D61936B547F3A37CE44CBF5D.mlw
sha1: 23bafaa70a6e9af75c0ad9425a25edb5390b47e7
sha256: 8f2c6cd0cb8ef2853fc3943a9b213b96f9c375586665169b24fc315bb2b01138
sha512: 3615cbc649aec5fa04685684a616b82442fb753bf7ccee2c733040e3cc1122ab38002dcd57fabd23ec0253b832511abed822872da8e26170a60a3b8df8b22af7
ssdeep: 12288:vKQA3rQ4MCk57LrgK5GS0fVtNy48UhKcNUl9grPlU:vK3r/MxrghfVtNu/gW9IPlU
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Ransom:Win32/Crilock.B also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.24495
FireEye Generic.mg.938d5418d61936b5
Qihoo-360 Win32/Ransom.Criakl.HgIASOkA
ALYac Trojan.Ransom.Cryakl
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 005263311 )
K7GW Trojan ( 005263311 )
CrowdStrike win/malicious_confidence_70% (W)
BitDefenderTheta Gen:NN.ZexaF.34590.MCW@a00jBchi
Symantec Ransom.CryptXXX
APEX Malicious
Avast Win32:Splitter-A [Trj]
Kaspersky Trojan-Ransom.Win32.Cryakl.aqo
Alibaba Ransom:Win32/Cryakl.054a7598
NANO-Antivirus Trojan.Win32.Backboot.extdlt
Rising Ransom.Cryakl!8.560 (CLOUD)
Sophos Mal/Generic-R + Troj/Kryptik-IC
Comodo Malware@#tj6tmqsidub3
Zillya Trojan.Cryakl.Win32.453
TrendMicro RANSOM_CRILOCK.NFO
McAfee-GW-Edition BehavesLike.Win32.Generic.jh
Ikarus Trojan.Inject
Jiangmin Trojan.Cryakl.kv
MAX malware (ai score=96)
Antiy-AVL Trojan[Backdoor]/Win32.Androm
Microsoft Ransom:Win32/Crilock.B
ZoneAlarm Trojan-Ransom.Win32.Cryakl.aqo
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Cryakl.R219836
McAfee GenericRXDZ-GK!938D5418D619
VBA32 BScope.Backdoor.Backboot
Malwarebytes MachineLearning/Anomalous.100%
Panda Trj/GdSda.A
Zoner Trojan.Win32.64989
ESET-NOD32 a variant of Win32/GenKryptik.BPDU
TrendMicro-HouseCall RANSOM_CRILOCK.NFO
Tencent Malware.Win32.Gencirc.10c8a130
Yandex Trojan.GenAsa!9mBz7HLaOjA
SentinelOne Static AI – Malicious PE
eGambit Unsafe.AI_Score_99%
Fortinet W32/GenKryptik.BPAT!tr
AVG Win32:Splitter-A [Trj]
Cybereason malicious.70a6e9
Paloalto generic.ml
MaxSecure Trojan.Malware.300983.susgen

How to remove Ransom:Win32/Crilock.B 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 Ransom:Win32/Crilock.B 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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Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Ransom:Win32/Crilock.B 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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