Backdoor.Zyklon

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

What is Backdoor.Zyklon infection?

In this short article you will certainly discover about the definition of Backdoor.Zyklon and its negative impact on your computer. Such ransomware are a form of malware that is elaborated by online fraudulences to demand paying the ransom money by a target.

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Most of the instances, Backdoor.Zyklon ransomware will instruct its victims to launch funds move for the objective of counteracting the changes that the Trojan infection has actually introduced to the victim’s gadget.

Backdoor.Zyklon 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.
  • 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.;
  • Starts servers listening on 127.0.0.1:9050;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Executed a process and injected code into it, probably while unpacking;
  • A process was set to shut the system down when terminated;
  • Installs Tor on the infected machine;
  • Checks the version of Bios, possibly for anti-virtualization;
  • Checks the CPU name from registry, possibly for anti-virtualization;
  • Creates a copy of itself;
  • Attempts to interact with an Alternate Data Stream (ADS);
  • Collects information to fingerprint the system. There are behavioral human characteristics that can be used to digitally identify a person to grant access to systems, devices, or data. Unlike passwords and verification codes, fingerprints are fundamental parts of user’s identities. Among the threats blocked on biometric data processing and storage systems is spyware, the malware used in phishing attacks (mostly spyware downloaders and droppers), ransomware, and Banking Trojans as posing the greatest danger.
  • Ciphering the records situated on the victim’s disk drive — so the target can no more make use of the data;
  • Preventing routine access to the sufferer’s workstation;

Backdoor.Zyklon

One of the most normal networks whereby Backdoor.Zyklon Trojans are injected are:

  • By ways of phishing emails;
  • As a consequence of customer ending up on a source that holds a harmful software;

As soon as the Trojan is successfully infused, it will certainly either cipher the information on the victim’s PC or stop the device from operating in a correct manner – while additionally positioning a ransom note that points out the requirement for the targets to impact the payment for the objective of decrypting the documents or bring back the file system back to the first condition. In a lot of circumstances, the ransom note will come up when the customer reboots the COMPUTER after the system has actually currently been harmed.

Backdoor.Zyklon distribution networks.

In numerous corners of the globe, Backdoor.Zyklon expands by jumps and also bounds. Nonetheless, the ransom money notes and tricks of obtaining the ransom money quantity may differ depending upon certain neighborhood (regional) settings. The ransom money notes as well as methods of extorting the ransom quantity might differ depending on particular neighborhood (local) setups.

Ransomware injection

For example:

    Faulty alerts concerning unlicensed software program.

    In certain locations, the Trojans typically wrongfully report having discovered some unlicensed applications made it possible for on the target’s tool. The sharp after that demands the customer to pay the ransom money.

    Faulty declarations concerning unlawful material.

    In nations where software piracy is much less preferred, this approach is not as efficient for the cyber fraudulences. Additionally, the Backdoor.Zyklon popup alert may wrongly declare to be stemming from a law enforcement establishment and will report having located youngster porn or various other illegal information on the gadget.

    Backdoor.Zyklon popup alert might falsely declare to be deriving from a law enforcement institution and will report having located child porn or other unlawful information on the gadget. The alert will similarly consist of a requirement for the user to pay the ransom money.

Technical details

File Info:

crc32: 76527EBD
md5: c6fa4987940347af2b09647ab379a8c8
name: C6FA4987940347AF2B09647AB379A8C8.mlw
sha1: 5929da993968b00d53dd382770dbd21eec430c47
sha256: 2a4a3d742d02e677940111b763b3224ec3bb160b772be5cad5424b34441326a3
sha512: 33a97f803c43e9d8a01f62bb87f33a6db57c67b3ad254e658b93a562ebdd4e8ccea1367e8ff3cfd0fc0b89d8150f83c7b93e663a4d7df2f958e68437d2089bd1
ssdeep: 24576:kiVY4mLd78bcL/p8QevR7HUFoubFtv1ct74zHRiPI1nNG:kZ78UWLHVuhxzxiPI1
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

0: [No Data]

Backdoor.Zyklon also known as:

GridinSoftTrojan.Ransom.Gen
K7AntiVirusTrojan ( 700000121 )
CAT-QuickHealTrojan.Generic
ALYacGen:Heur.Ransom.REntS.Gen.1
MalwarebytesBackdoor.Zyklon
ZillyaTrojan.Kryptik.Win32.1221612
CrowdStrikewin/malicious_confidence_100% (W)
BitDefenderGen:Heur.Ransom.REntS.Gen.1
K7GWTrojan ( 700000121 )
Cybereasonmalicious.794034
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of MSIL/Zyklon.C
APEXMalicious
Paloaltogeneric.ml
CynetMalicious (score: 99)
AlibabaBackdoor:MSIL/Omaneat.b283b914
NANO-AntivirusTrojan.Win32.Kryptik.ererdg
MicroWorld-eScanGen:Heur.Ransom.REntS.Gen.1
Ad-AwareGen:Heur.Ransom.REntS.Gen.1
ComodoMalware@#3si91n2ct7yql
BitDefenderThetaGen:NN.ZemsilF.34670.rnW@a0QAEDb
VIPRETrojan.Win32.Generic!BT
TrendMicroTROJ_FRS.0NA103AA19
FireEyeGeneric.mg.c6fa4987940347af
EmsisoftGen:Heur.Ransom.REntS.Gen.1 (B)
JiangminTrojan.Generic.apsut
AviraTR/Dropper.Gen
eGambitUnsafe.AI_Score_100%
KingsoftWin32.Troj.Undef.(kcloud)
ArcabitTrojan.Ransom.REntS.Gen.1
AegisLabTrojan.Win32.Generic.4!c
GDataMSIL.Trojan.Zyklon.A
AhnLab-V3Trojan/Win32.Skeeyah.R194230
VBA32TScope.Trojan.MSIL
MAXmalware (ai score=100)
TrendMicro-HouseCallTROJ_FRS.0NA103AA19
TencentWin32.Trojan.Inject.Auto
SentinelOneStatic AI – Malicious PE
MaxSecureTrojan.Malware.300983.susgen
FortinetMSIL/Generic.AP.57260!tr
PandaTrj/GdSda.A
Qihoo-360Win32/TrojanSpy.Omaneat.HwMAEpsA

How to remove Backdoor.Zyklon 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 Backdoor.Zyklon 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 Backdoor.Zyklon 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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