Trojan:Win32/Cystea

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

What is Trojan:Win32/Cystea infection?

In this article you will locate regarding the meaning of Trojan:Win32/Cystea and its negative influence on your computer. Such ransomware are a form of malware that is clarified by on-line scams to require paying the ransom money by a victim.

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Most of the instances, Trojan:Win32/Cystea virus will certainly instruct its victims to initiate funds transfer for the purpose of neutralizing the amendments that the Trojan infection has presented to the sufferer’s tool.

Trojan:Win32/Cystea 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.
  • Compression (or decompression);
  • 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.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Checks for the presence of known windows from debuggers and forensic tools;
  • Ciphering the files found on the sufferer’s hard disk — so the sufferer can no more utilize the data;
  • Preventing normal 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.

Trojan:Win32/Cystea

The most common channels whereby Trojan:Win32/Cystea Ransomware Trojans are injected are:

  • By means of phishing e-mails;
  • As a repercussion of user ending up on a resource that holds a destructive software application;

As soon as the Trojan is successfully injected, it will certainly either cipher the information on the victim’s computer or stop the tool from working in a proper fashion – while likewise putting a ransom note that discusses the requirement for the victims to effect the repayment for the function of decrypting the records or recovering the data system back to the initial problem. In many circumstances, the ransom money note will certainly turn up when the client reboots the COMPUTER after the system has already been harmed.

Trojan:Win32/Cystea circulation channels.

In various corners of the world, Trojan:Win32/Cystea expands by jumps and also bounds. However, the ransom money notes as well as tricks of extorting the ransom quantity may differ depending upon particular local (regional) setups. The ransom notes and tricks of extorting the ransom money quantity may differ depending on certain neighborhood (local) settings.

Ransomware injection

For example:

    Faulty notifies regarding unlicensed software program.

    In specific locations, the Trojans usually wrongfully report having actually found some unlicensed applications allowed on the target’s device. The sharp then demands the customer to pay the ransom money.

    Faulty declarations concerning unlawful content.

    In countries where software piracy is much less preferred, this technique is not as effective for the cyber scams. Additionally, the Trojan:Win32/Cystea popup alert may incorrectly declare to be originating from a law enforcement institution and will certainly report having located child pornography or other unlawful information on the device.

    Trojan:Win32/Cystea popup alert may falsely claim to be obtaining from a regulation enforcement institution and will certainly report having located child porn or various other illegal information on the tool. The alert will likewise consist of a requirement for the customer to pay the ransom.

Technical details

File Info:

crc32: BDF0664E
md5: e34cf17871b7476a1cd064a3a7043224
name: E34CF17871B7476A1CD064A3A7043224.mlw
sha1: b04faf953fa9a35fd4ac4c506df6f168f90d3cac
sha256: 083e096c90ce5dcbcce2e47f9992f3debf1bc468e3c4998d355432be88382e7a
sha512: b1486c917f6a034577d623dfe8051363abd3bdcf1841153663690ea21c825a327ed69590b1991fc031dbce639b2b2a159fe81b63b896954846fd48b705ff916a
ssdeep: 6144:a9VF/aEGWgAsk5eQdcSYclhPeOyzDM0hyL6oHG1AZ:EVF/lGWgAsk5eQdcSNgzDM0cRZ
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: (c) Ubisoft
InternalName: Uplay game launcher
FileVersion: 3.0.1.1
CompanyName: Ubisoft
LegalTrademarks1: Ubisoft Uplay
LegalTrademarks2: Ubisoft Uplay launcher
ProductName: Uplay
ProductVersion: 3.0.1.1
FileDescription: Uplay launcher
OriginalFilename: upc.exe
Translation: 0x0409 0x04b0

Trojan:Win32/Cystea also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 004d3c641 )
Elastic malicious (high confidence)
DrWeb Trojan.Swrort.41
McAfee Generic Trojan.bz
Cylance Unsafe
Zillya Trojan.Rozena.Win32.59006
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Trojan:Win32/Snojan.d5fba677
K7GW Trojan ( 004d3c641 )
Cybereason malicious.871b74
Symantec Trojan.Gen.2
ESET-NOD32 Win32/Rozena.PP
APEX Malicious
Avast Win32:Malware-gen
Cynet Malicious (score: 100)
Kaspersky Trojan.Win32.Snojan.bmxl
BitDefender Trojan.GenericKD.5230110
NANO-Antivirus Trojan.Win32.Snojan.epqqrq
MicroWorld-eScan Trojan.GenericKD.5230110
Tencent Win32.Trojan.Snojan.Ahya
Ad-Aware Trojan.GenericKD.5230110
Sophos Mal/Generic-S
BitDefenderTheta Gen:NN.ZexaF.34678.pq0@ayq40Zgi
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.StartPage.dh
FireEye Generic.mg.e34cf17871b7476a
Emsisoft Trojan.GenericKD.5230110 (B)
SentinelOne Static AI – Suspicious PE
Webroot W32.Trojan.GenKD
Avira HEUR/AGEN.1127900
Microsoft Trojan:Win32/Cystea
AegisLab Trojan.Win32.Snojan.4!c
GData Trojan.GenericKD.5230110
AhnLab-V3 Win-Trojan/Sagecrypt.Gen
Acronis suspicious
VBA32 Trojan.Snojan
MAX malware (ai score=100)
Panda Trj/CI.A
TrendMicro-HouseCall TROJ_GEN.R002C0DDG21
Rising Trojan.Rozena!8.6D (CLOUD)
Ikarus Trojan-Ransom.GandCrab
eGambit Unsafe.AI_Score_99%
Fortinet W32/Rozena.PP!tr
AVG Win32:Malware-gen

How to remove Trojan:Win32/Cystea virus?

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 Trojan:Win32/Cystea 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 Trojan:Win32/Cystea 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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