Backdoor:Win32/Wkysol.E

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

What is Backdoor:Win32/Wkysol.E infection?

In this post you will certainly find concerning the meaning of Backdoor:Win32/Wkysol.E as well as its negative influence on your computer system. Such ransomware are a kind of malware that is specified by online scams to require paying the ransom money by a victim.

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In the majority of the instances, Backdoor:Win32/Wkysol.E ransomware will instruct its sufferers to initiate funds move for the function of counteracting the amendments that the Trojan infection has introduced to the sufferer’s device.

Backdoor:Win32/Wkysol.E Summary

These adjustments can be as complies with:

  • 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.
  • Expresses interest in specific running processes;
  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • Uses Windows utilities for basic functionality;
  • 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
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the papers found on the victim’s disk drive — so the target can no longer make use of the data;
  • Preventing normal access to the victim’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

Backdoor:Win32/Wkysol.E

The most normal channels whereby Backdoor:Win32/Wkysol.E Trojans are infused are:

  • By means of phishing emails;
  • As a consequence of user winding up on a source that holds a destructive software;

As soon as the Trojan is efficiently infused, it will certainly either cipher the information on the sufferer’s computer or stop the gadget from functioning in a proper way – while additionally placing a ransom note that discusses the demand for the victims to impact the repayment for the objective of decrypting the documents or bring back the data system back to the preliminary condition. In a lot of instances, the ransom money note will certainly turn up when the customer restarts the PC after the system has actually currently been damaged.

Backdoor:Win32/Wkysol.E distribution channels.

In numerous corners of the globe, Backdoor:Win32/Wkysol.E expands by jumps as well as bounds. Nevertheless, the ransom notes and techniques of obtaining the ransom amount may vary depending on particular regional (regional) setups. The ransom notes as well as techniques of extorting the ransom quantity may vary depending on certain neighborhood (regional) settings.

Ransomware injection

For example:

    Faulty informs about unlicensed software program.

    In certain areas, the Trojans often wrongfully report having discovered some unlicensed applications enabled on the target’s gadget. The alert then demands the customer to pay the ransom.

    Faulty declarations about prohibited content.

    In nations where software program piracy is less prominent, this method is not as reliable for the cyber fraudulences. Alternatively, the Backdoor:Win32/Wkysol.E popup alert may incorrectly declare to be stemming from a law enforcement organization as well as will certainly report having situated youngster porn or various other unlawful data on the tool.

    Backdoor:Win32/Wkysol.E popup alert might incorrectly assert to be acquiring from a law enforcement establishment as well as will report having located youngster porn or other prohibited information on the tool. The alert will in a similar way have a need for the user to pay the ransom.

Technical details

File Info:

crc32: 686D2BF2
md5: da2a07575bd4606f6afe8e6246a54b33
name: DA2A07575BD4606F6AFE8E6246A54B33.mlw
sha1: fca9dc5e132daa98646357363e5ca1637a6f653f
sha256: 7bde9ac557e4e3b61f8364a4f91a01efb523a4420ff498445b9a92932a7607a3
sha512: 6bd3ef7c0f570558c8332664c686e2dec89870f4d6ee84d12cb9d7a8e7d09ccd47281216bc6be263e5c00f9cecd743b5dd9aab5ec56bfc6cc9b178481d6da963
ssdeep: 1536:IC8ySPZQUSJqtje/G9L7pYlSSLDqypKw5hELRiltpUzCKb3whVA:n8ySOUEqk/K7p8SiqQKw5vtpUmKEVA
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2002
InternalName: File
FileVersion: 1, 0, 0, 1
CompanyName:
LegalTrademarks:
ProductName: File Application
ProductVersion: 1, 0, 0, 1
FileDescription: File MFC Application
OriginalFilename: File.EXE
Translation: 0x0409 0x04b0

Backdoor:Win32/Wkysol.E also known as:

GridinSoftTrojan.Ransom.Gen
K7AntiVirusRiskware ( 0040eff71 )
Elasticmalicious (high confidence)
DrWebTrojan.Inject.59951
CynetMalicious (score: 100)
ALYacGen:Variant.Buzy.4277
CylanceUnsafe
ZillyaBackdoor.PcClient.Win32.19926
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (W)
AlibabaRansom:Win32/Blocker.8f6d67e0
K7GWRiskware ( 0040eff71 )
Cybereasonmalicious.75bd46
ESET-NOD32a variant of Win32/TrojanDropper.Binder.NBM
APEXMalicious
AvastWin32:Trojan-gen
ClamAVWin.Trojan.Sykipot-29
KasperskyTrojan-Ransom.Win32.Blocker.jero
BitDefenderGen:Variant.Buzy.4277
NANO-AntivirusTrojan.Win32.PcClient.dzdbhg
ViRobotBackdoor.Win32.A.PcClient.116837
MicroWorld-eScanGen:Variant.Buzy.4277
TencentWin32.Trojan-dropper.Demp.Wqwo
Ad-AwareGen:Variant.Buzy.4277
SophosML/PE-A + Mal/Behav-103
ComodoApplication.Win32.BlkIC.IMG@1qp8gx
BitDefenderThetaGen:NN.ZexaF.34608.hq3@aaUJivji
VIPRETrojan.Win32.Generic.pak!cobra
TrendMicroBKDR_SKYIPOT.SM
McAfee-GW-EditionBackDoor-FDE.c
FireEyeGeneric.mg.da2a07575bd4606f
EmsisoftGen:Variant.Buzy.4277 (B)
SentinelOneStatic AI – Malicious PE
WebrootW32.Backdoor.Gen
AviraTR/Dropper.Gen
eGambitUnsafe.AI_Score_99%
MicrosoftBackdoor:Win32/Wkysol.E
ArcabitTrojan.Buzy.D10B5
AegisLabTrojan.Win32.PcClient.m!c
GDataGen:Variant.Buzy.4277
AhnLab-V3Trojan/Win32.PcClient.R3923
McAfeeBackDoor-FDE.c
MAXmalware (ai score=99)
VBA32Backdoor.PcClient
PandaGeneric Suspicious
TrendMicro-HouseCallBKDR_SKYIPOT.SM
RisingRansom.Blocker!8.12A (RDMK:cmRtazpPC3ZLXi1laKGFIzn8p0hr)
YandexTrojan.GenAsa!mt5jFtnJjDw
IkarusBackdoor.Win32.PcClient
FortinetW32/BackDoor.DX3!tr
AVGWin32:Trojan-gen
Paloaltogeneric.ml
Qihoo-360HEUR/Malware.QVM07.Gen

How to remove Backdoor:Win32/Wkysol.E ransomware?

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 Backdoor:Win32/Wkysol.E 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 Backdoor:Win32/Wkysol.E 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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