Ransom:Win32/Betisrypt!rfn

What is Ransom:Win32/Betisrypt!rfn infection?

In this post you will certainly locate regarding the meaning of Ransom:Win32/Betisrypt!rfn and also its negative effect on your computer system. Such ransomware are a form of malware that is specified by online frauds to demand paying the ransom by a target.

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Most of the situations, Ransom:Win32/Betisrypt!rfn ransomware will certainly advise its sufferers to start funds move for the function of reducing the effects of the amendments that the Trojan infection has actually presented to the sufferer’s device.

Ransom:Win32/Betisrypt!rfn Summary

These adjustments can be as follows:

  • Injection (inter-process);
  • Injection (Process Hollowing);
  • 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 attempted to delay the analysis task.;
  • 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.

  • A process created a hidden window;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • The executable is compressed using UPX;
  • Uses Windows utilities for basic functionality;
  • Attempts to delete volume shadow copies;
  • Executed a process and injected code into it, probably while unpacking;
  • Modifies boot configuration settings;
  • 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;
  • Likely virus infection of existing system binary;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the documents located on the target’s hard disk — so the sufferer can no more make use of the data;
  • Preventing normal 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.

Ransom:Win32/Betisrypt!rfn

One of the most regular channels through which Ransom:Win32/Betisrypt!rfn are injected are:

  • By ways of phishing e-mails;
  • As an effect of individual winding up on a resource that organizes a malicious software program;

As soon as the Trojan is effectively infused, it will certainly either cipher the data on the victim’s PC or protect against the gadget from functioning in a proper fashion – while additionally putting a ransom note that states the requirement for the victims to effect the settlement for the objective of decrypting the documents or bring back the documents system back to the first condition. In a lot of 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/Betisrypt!rfn circulation channels.

In numerous edges of the globe, Ransom:Win32/Betisrypt!rfn grows by leaps and also bounds. Nonetheless, the ransom notes and tricks of extorting the ransom money amount may vary relying on certain neighborhood (regional) setups. The ransom money notes and also methods of extorting the ransom amount may vary depending on particular local (regional) settings.

Ransomware injection

For example:

    Faulty notifies regarding unlicensed software application.

    In certain areas, the Trojans frequently wrongfully report having identified some unlicensed applications enabled on the victim’s tool. The sharp after that requires the individual to pay the ransom money.

    Faulty declarations regarding illegal web content.

    In countries where software piracy is less popular, this method is not as effective for the cyber frauds. Alternatively, the Ransom:Win32/Betisrypt!rfn popup alert might incorrectly declare to be stemming from a police institution as well as will report having located kid pornography or other prohibited data on the device.

    Ransom:Win32/Betisrypt!rfn popup alert might incorrectly declare to be obtaining from a legislation enforcement establishment and also will report having located child porn or other unlawful information on the gadget. The alert will similarly include a demand for the user to pay the ransom.

Technical details

File Info:

crc32: C34F766E
md5: 5547b4c9c75772c1b336ad1cef8f771f
name: 5547B4C9C75772C1B336AD1CEF8F771F.mlw
sha1: 93b4e23c5a04b5358b67ad3446ade66833b2e1c3
sha256: 95fe5769b76ff40a2c219b565086a9509bdfb16720f00398305dce3aea9e95e2
sha512: 6b2e235520c4b70140942f4c8cc68f0a67a580ed6e3cc37e3fdf0e52ec74309a243a87dd71e6a03c2e1967fd1dce8765e129c520dc2b1eac5f8ea84350a6c8b8
ssdeep: 6144:RkpNoSoI5rp5BBhLWSVN3nhhyZWpE2TZhOYWizi+bW4VlSLW/1LTQ:R+NoStrHBBhLWSLRsZRkZhtIuW0lSLkg
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

0: [No Data]

Ransom:Win32/Betisrypt!rfn also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Spyware ( 004dc4921 )
Elastic malicious (high confidence)
Cynet Malicious (score: 100)
ALYac Trojan.Ransom.BYJ
Cylance Unsafe
Zillya Backdoor.Androm.Win32.44299
Sangfor Trojan.Win32.Inject.ajqxd
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Trojan:Win32/BTCWare.32e040f0
K7GW Spyware ( 004dc4921 )
Cybereason malicious.9c7577
Symantec Trojan.Gen.2
ESET-NOD32 Win32/Filecoder.BTCWare.E
APEX Malicious
Avast Win32:Splitter-A [Trj]
Kaspersky Trojan.Win32.Inject.ajqxd
BitDefender Trojan.Ransom.BYJ
NANO-Antivirus Trojan.Win32.Androm.epwbjw
MicroWorld-eScan Trojan.Ransom.BYJ
Tencent Malware.Win32.Gencirc.1149787b
Ad-Aware Trojan.Ransom.BYJ
Sophos ML/PE-A + Mal/Cerber-U
Comodo Malware@#ytuyu5gs9lru
BitDefenderTheta Gen:NN.ZexaF.34628.umJfaej6KPmm
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_CRYSIS.F117F9
McAfee-GW-Edition BehavesLike.Win32.Trojan.fc
FireEye Generic.mg.5547b4c9c75772c1
Emsisoft Trojan.Ransom.BYJ (B)
SentinelOne Static AI – Suspicious PE
Jiangmin Trojan.Bitcovar.c
Avira TR/Crypt.XPACK.kijaa
Microsoft Ransom:Win32/Betisrypt!rfn
Arcabit Trojan.Ransom.BYJ
AegisLab Trojan.Win32.Bitcovar.j!c
ZoneAlarm Trojan.Win32.Inject.ajqxd
GData Trojan.Ransom.BYJ
TACHYON Ransom/W32.Agent.384422
McAfee Artemis!5547B4C9C757
MAX malware (ai score=100)
VBA32 BScope.TrojanPSW.Zbot
Malwarebytes Malware.Heuristic.1003
Panda Trj/CI.A
TrendMicro-HouseCall Ransom_CRYSIS.F117F9
Rising Ransom.Bitcovar!8.E709 (CLOUD)
Yandex Trojan.Filecoder!XcE91CRMDoQ
Ikarus Trojan.Win32.Filecoder
Fortinet W32/Injector.DPJS!tr
AVG Win32:Splitter-A [Trj]
Paloalto generic.ml
Qihoo-360 Win32/Trojan.Inject.HxIBEpsA

How to remove Ransom:Win32/Betisrypt!rfn 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/Betisrypt!rfn 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/Betisrypt!rfn 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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