Trojan:Win32/Skeeeyah

Written by Robert Bailey

What is Trojan:Win32/Skeeeyah infection?

In this article you will certainly locate about the definition of Trojan:Win32/Skeeeyah and its adverse effect on your computer. Such ransomware are a form of malware that is elaborated by on-line fraudulences to demand paying the ransom money by a sufferer.

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In the majority of the cases, Trojan:Win32/Skeeeyah virus will instruct its targets to launch funds move for the purpose of neutralizing the amendments that the Trojan infection has actually presented to the victim’s tool.

Trojan:Win32/Skeeeyah 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.
  • Possible date expiration check, exits too soon after checking local time;
  • 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.
  • The executable is compressed using UPX;
  • Executed a very long command line or script command which may be indicative of chained commands or obfuscation;
  • A scripting utility was executed;
  • Uses Windows utilities for basic functionality;
  • Executed a process and injected code into it, probably while unpacking;
  • 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
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Creates a copy of itself;
  • Ciphering the files situated on the sufferer’s hard drive — so the target can no more make use of the information;
  • Preventing normal access to the target’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.
Similar behavior
Related domains
z.whorecord.xyzBehavesLike.Win32.Ransomware.vc
a.tomx.xyzBehavesLike.Win32.Ransomware.vc

Trojan:Win32/Skeeeyah

The most common networks where Trojan:Win32/Skeeeyah are injected are:

  • By means of phishing emails;
  • As an effect of user ending up on a source that organizes a destructive software application;

As quickly as the Trojan is successfully injected, it will either cipher the data on the target’s PC or prevent the gadget from operating in a correct way – while also positioning a ransom money note that mentions the need for the sufferers to impact the settlement for the purpose of decrypting the files or recovering the file system back to the preliminary condition. In many instances, the ransom note will certainly show up when the client reboots the PC after the system has currently been damaged.

Trojan:Win32/Skeeeyah distribution channels.

In different edges of the globe, Trojan:Win32/Skeeeyah expands by jumps and bounds. Nonetheless, the ransom money notes and methods of extorting the ransom amount might vary relying on particular regional (local) settings. The ransom notes and also techniques of extorting the ransom quantity may vary depending on specific neighborhood (regional) settings.

Ransomware injection

As an example:

    Faulty alerts concerning unlicensed software application.

    In particular locations, the Trojans usually wrongfully report having actually identified some unlicensed applications allowed on the target’s device. The alert then requires the customer to pay the ransom money.

    Faulty statements concerning prohibited content.

    In countries where software application piracy is less popular, this technique is not as efficient for the cyber frauds. Alternatively, the Trojan:Win32/Skeeeyah popup alert may incorrectly claim to be deriving from a law enforcement institution and will report having located child pornography or other illegal data on the gadget.

    Trojan:Win32/Skeeeyah popup alert may wrongly declare to be deriving from a law enforcement organization and will certainly report having located child porn or various other unlawful information on the gadget. The alert will in a similar way include a need for the customer to pay the ransom.

Technical details

File Info:

crc32: 6DCD50E8
md5: 3f9a81a8956122cd51c63ab135dfdc3a
name: 3F9A81A8956122CD51C63AB135DFDC3A.mlw
sha1: 0c7ef98f52b11543572e7ddfb34dac9a1e563556
sha256: 75eda1cc65e25284ebaca4c74d9d76ebec4c034373a3403427f4d159a26d2bd4
sha512: a7ac293e73fa1094c8450e7cecebd1e702f8914aac9ca84aaa30a438cbcad236c3af40768f6a28ec1fe6742b462d3005c14ace98bb47d3ee9acea73d4a1ca5db
ssdeep: 24576:ssFXmZZcVKfIxTiEVc847flVC6faaQDbGV6eH81k6IbGD2JTu0GoZQDbGV6eH81A:fFXmw4gxeOw46fUbNecCCFbNecu
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

LegalCopyright: Copyright (C) 2000
InternalName: FlowerPower
FileVersion: 1, 0, 0, 1
CompanyName:
PrivateBuild:
LegalTrademarks:
Comments:
ProductName: FlowerPower
SpecialBuild:
ProductVersion: 1, 0, 0, 1
FileDescription: FlowerPower
OriginalFilename: FlowerPower.EXE
Translation: 0x0c09 0x04b0

Trojan:Win32/Skeeeyah also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetectVM.malware1
Elasticmalicious (high confidence)
DrWebTrojan.Inject3.16347
MicroWorld-eScanMemScan:Trojan.Agent.ECLV
FireEyeGeneric.mg.3f9a81a8956122cd
CAT-QuickHealTrojan.Mauvaise.SL1
ALYacMemScan:Trojan.Agent.ECLV
MalwarebytesBackdoor.AveMaria
ZillyaTrojan.GenKryptik.Win32.30456
SangforMalware
K7AntiVirusTrojan ( 005619a01 )
BitDefenderMemScan:Trojan.Agent.ECLV
K7GWTrojan ( 005619a01 )
Cybereasonmalicious.895612
TrendMicroTrojanSpy.Win32.AVEMARIA.SMTH
BitDefenderThetaGen:NN.ZexaF.34590.RoNfaGSD0tbi
CyrenW32/Kryptik.CJS.gen!Eldorado
SymantecBackdoor.Avecma
APEXMalicious
AvastSf:ShellCode-CU [Trj]
ClamAVWin.Malware.Ursu-6793772-0
KasperskyHEUR:Trojan.Win32.Zenpak.gen
NANO-AntivirusTrojan.Win32.Inject3.fqtflc
TencentMalware.Win32.Gencirc.10ce1132
Ad-AwareMemScan:Trojan.Agent.ECLV
SophosTroj/AutoG-DQ
ComodoTrojWare.Win32.Injector.AVPL@8d26g3
F-SecureBackdoor.BDS/Poison.mon
VIPREPacker.NSAnti.Gen (v)
InvinceaML/PE-A + Troj/AutoG-DQ
McAfee-GW-EditionBehavesLike.Win32.Ransomware.vc
EmsisoftMemScan:Trojan.Agent.ECLV (B)
JiangminTrojan.Nymaim.exo
WebrootW32.Malware.Gen
AviraBDS/Poison.mon
Antiy-AVLTrojan/Win32.Nymaim
MicrosoftTrojan:Win32/Skeeeyah
ArcabitTrojan.Agent.ECLV
ZoneAlarmHEUR:Trojan.Win32.Zenpak.gen
GDataMemScan:Trojan.Agent.ECLV
CynetMalicious (score: 100)
AhnLab-V3Malware/Win32.RL_Generic.R273894
Acronissuspicious
McAfeeArtemis!3F9A81A89561
MAXmalware (ai score=82)
VBA32SScope.Trojan.Hlux
PandaTrj/Genetic.gen
ZonerTrojan.Win32.89366
ESET-NOD32a variant of Win32/Kryptik.GZNI
TrendMicro-HouseCallTrojanSpy.Win32.AVEMARIA.SMTH
RisingTrojan.Injector!1.B53C (CLASSIC)
YandexTrojan.GenAsa!jwQBWYdc2PY
SentinelOneStatic AI – Malicious PE
eGambitTrojan.Generic
FortinetW32/Kryptik.GZNI!tr
AVGSf:ShellCode-CU [Trj]
CrowdStrikewin/malicious_confidence_90% (D)
Qihoo-360HEUR/QVM19.1.3967.Malware.Gen

How to remove Trojan:Win32/Skeeeyah 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

The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes.2.

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/Skeeeyah 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:Win32/Skeeeyah 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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