Trojan-Ransom.Win32.Crypren.aewf

Written by Robert Bailey

What is Trojan-Ransom.Win32.Crypren.aewf infection?

In this article you will locate about the interpretation of Trojan-Ransom.Win32.Crypren.aewf as well as its adverse impact on your computer system. Such ransomware are a form of malware that is specified by on-line fraudulences to demand paying the ransom money by a sufferer.

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In the majority of the situations, Trojan-Ransom.Win32.Crypren.aewf virus will certainly instruct its targets to launch funds transfer for the objective of neutralizing the changes that the Trojan infection has actually presented to the sufferer’s gadget.

Trojan-Ransom.Win32.Crypren.aewf Summary

These adjustments 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.
  • 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.
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • 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.

  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • 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;
  • Creates a hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
  • Creates a copy of itself;
  • Ciphering the papers found on the target’s hard disk drive — so the target can no longer use the information;
  • 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.

Trojan-Ransom.Win32.Crypren.aewf

One of the most regular networks whereby Trojan-Ransom.Win32.Crypren.aewf Ransomware Trojans are infused are:

  • By ways of phishing emails;
  • As a repercussion of user winding up on a source that hosts a destructive software;

As soon as the Trojan is successfully infused, it will either cipher the information on the victim’s PC or prevent the tool from working in an appropriate fashion – while also placing a ransom note that points out the demand for the sufferers to impact the settlement for the function of decrypting the documents or restoring the file system back to the first condition. In many circumstances, the ransom note will come up when the customer restarts the COMPUTER after the system has currently been damaged.

Trojan-Ransom.Win32.Crypren.aewf distribution networks.

In different corners of the world, Trojan-Ransom.Win32.Crypren.aewf expands by leaps as well as bounds. Nonetheless, the ransom money notes and techniques of extorting the ransom amount might vary relying on specific regional (regional) setups. The ransom money notes and also tricks of obtaining the ransom money quantity might vary depending on specific neighborhood (local) setups.

Ransomware injection

As an example:

    Faulty notifies about unlicensed software program.

    In certain locations, the Trojans often wrongfully report having actually found some unlicensed applications allowed on the target’s gadget. The sharp after that demands the individual to pay the ransom.

    Faulty statements regarding illegal web content.

    In countries where software piracy is less prominent, this method is not as efficient for the cyber scams. Alternatively, the Trojan-Ransom.Win32.Crypren.aewf popup alert might falsely claim to be deriving from a police institution as well as will report having situated child porn or various other unlawful information on the device.

    Trojan-Ransom.Win32.Crypren.aewf popup alert may incorrectly claim to be deriving from a regulation enforcement establishment and also will certainly report having situated kid pornography or various other prohibited information on the device. The alert will similarly contain a need for the user to pay the ransom.

Technical details

File Info:

crc32: 96F39811
md5: 89ac1f819c818b52dea6ab673f3b05e5
name: 89AC1F819C818B52DEA6AB673F3B05E5.mlw
sha1: a37ab8d01fb90f6d5bdcfeff88784902d758ced2
sha256: 8f7d44cdf4c0dc682896a999e1d451e645ce50b4bb21c23bc7e30d9e9d0157e5
sha512: a55e4fa9929cc5d34aca9b0409d3c4d21408d2436122da92faee0f8d4e726f01e7a799e7b9bb9ff99ab00e2b7ba07924be23e12bca37869405be2bf6a742d569
ssdeep: 12288:ZQBPx8FvBkfm/YW7+OCkxT6grr4Zpwjyh7v6g8f6s:ZvD/vfC+T6k86C7v6g8f6s
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Trojan-Ransom.Win32.Crypren.aewf also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Trojan ( 0051a8021 )
Elastic malicious (high confidence)
Cynet Malicious (score: 100)
ALYac Trojan.GenericKD.40728147
Cylance Unsafe
Zillya Trojan.Crypren.Win32.700
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_60% (D)
Alibaba Ransom:Win32/Crypren.d638958d
K7GW Trojan ( 0051a8021 )
Cybereason malicious.19c818
Symantec ML.Attribute.HighConfidence
ESET-NOD32 Win32/Filecoder.Crysis.P
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.Win32.Crypren.aewf
BitDefender Trojan.GenericKD.40728147
NANO-Antivirus Trojan.Win32.Crypren.fkelik
SUPERAntiSpyware Trojan.Agent/Gen-Urlbot
MicroWorld-eScan Trojan.GenericKD.40728147
Tencent Win32.Trojan.Raas.Auto
Ad-Aware Trojan.GenericKD.40728147
Sophos Mal/Generic-S
Comodo Malware@#2wtbagf09vcbd
BitDefenderTheta Gen:NN.ZexaF.34678.JqW@auo9Vuei
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.Dropper.hh
FireEye Generic.mg.89ac1f819c818b52
Emsisoft Trojan.GenericKD.40728147 (B)
SentinelOne Static AI – Suspicious PE
Jiangmin Trojan.Crypren.mw
Webroot W32.Malware.Gen
Avira TR/AD.Crysis.hwhzq
eGambit Unsafe.AI_Score_99%
Microsoft Trojan:Win32/Occamy.C
AegisLab Trojan.Win32.Crypren.4!c
GData Trojan.GenericKD.40728147
TACHYON Ransom/W32.Crypren.583680
AhnLab-V3 Malware/Win32.Generic.C2867188
McAfee Artemis!89AC1F819C81
VBA32 TrojanRansom.Crypren
Panda Trj/CI.A
Rising Ransom.Crypren!8.1D6C (CLOUD)
Yandex Trojan.Crypren!m1KWi58zaDY
Ikarus Trojan.Crypt
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Crysis.EE29!tr.ransom
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Ransom.CrySiS.HgIASOsA

How to remove Trojan-Ransom.Win32.Crypren.aewf 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 Trojan-Ransom.Win32.Crypren.aewf 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 Trojan-Ransom.Win32.Crypren.aewf 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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