Trojan:Win32/Skeeyah.B!rfn

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

What is Trojan:Win32/Skeeyah.B!rfn infection?

In this post you will certainly find regarding the meaning of Trojan:Win32/Skeeyah.B!rfn and its unfavorable impact on your computer. Such ransomware are a kind of malware that is specified by on-line scams to demand paying the ransom by a sufferer.

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Most of the instances, Trojan:Win32/Skeeyah.B!rfn ransomware will certainly instruct its sufferers to launch funds move for the purpose of counteracting the changes that the Trojan infection has actually presented to the sufferer’s gadget.

Trojan:Win32/Skeeyah.B!rfn Summary

These modifications can be as adheres to:

  • 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.
  • Presents an Authenticode digital signature;
  • 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.
  • 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.
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • 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
  • Collects information about installed applications;
  • 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.
  • 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;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers found on the victim’s hard disk drive — so the victim can no more use the data;
  • Preventing regular accessibility to the sufferer’s workstation;
Similar behavior
Related domains
z.whorecord.xyzRansom.Troldesh
a.tomx.xyzRansom.Troldesh

Trojan:Win32/Skeeyah.B!rfn

The most typical channels through which Trojan:Win32/Skeeyah.B!rfn Ransomware are injected are:

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

As soon as the Trojan is efficiently infused, it will certainly either cipher the information on the target’s computer or prevent the device from operating in a proper fashion – while likewise positioning a ransom note that states the demand for the victims to effect the repayment for the objective of decrypting the files or bring back the data system back to the preliminary condition. In many instances, the ransom note will come up when the client reboots the PC after the system has already been damaged.

Trojan:Win32/Skeeyah.B!rfn distribution networks.

In numerous corners of the world, Trojan:Win32/Skeeyah.B!rfn expands by leaps and also bounds. Nonetheless, the ransom money notes and tricks of extorting the ransom money amount might vary relying on specific local (regional) setups. The ransom money notes as well as tricks of obtaining the ransom amount may vary depending on particular regional (regional) settings.

Ransomware injection

For instance:

    Faulty signals regarding unlicensed software.

    In particular locations, the Trojans typically wrongfully report having actually found some unlicensed applications made it possible for on the target’s tool. The sharp after that requires the individual to pay the ransom.

    Faulty declarations concerning unlawful material.

    In nations where software piracy is much less popular, this approach is not as reliable for the cyber fraudulences. Alternatively, the Trojan:Win32/Skeeyah.B!rfn popup alert might wrongly assert to be originating from a law enforcement institution as well as will certainly report having situated child porn or other illegal data on the tool.

    Trojan:Win32/Skeeyah.B!rfn popup alert may incorrectly assert to be acquiring from a law enforcement institution and will report having located child porn or other prohibited information on the tool. The alert will in a similar way include a need for the customer to pay the ransom.

Technical details

File Info:

crc32: 12A2BA18
md5: cf28320bf297dadc31406788511a3ccf
name: 1c.jpg
sha1: c33a0adc164a99036efab532acbc9f7961672aab
sha256: 7ae7c8f3cd7c94a5ac6f9d1665fd48bfb5762b207624a6f34432e163a658abc9
sha512: f113eafa181fd717b8583de4326760ada3c770d216576f5ced001cb4205e161af594f05d060ce99b99a95a12cd6c3b519ed8b30e7eaaf25dfead22e302d2926c
ssdeep: 24576:munNKtIhYR/76mf0HU8JLni1LjNvocD/0jnhqLb:muNK2Y/92Lni11voc7MIv
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Trojan:Win32/Skeeyah.B!rfn also known as:

GridinSoftTrojan.Ransom.Gen
DrWebTrojan.Encoder.858
MicroWorld-eScanTrojan.GenericKD.31923034
FireEyeGeneric.mg.cf28320bf297dadc
Qihoo-360Win32/Trojan.315
McAfeeTrickbot-FRDP!CF28320BF297
CylanceUnsafe
VIPRETrojan.Win32.Generic.pak!cobra
SangforMalware
K7AntiVirusTrojan ( 0053fa991 )
BitDefenderTrojan.GenericKD.31923034
K7GWTrojan ( 0053fa991 )
Cybereasonmalicious.bf297d
Invinceaheuristic
BitDefenderThetaGen:NN.ZexaF.34090.7qX@aqO1cHli
CyrenW32/Trojan.BUF.gen!Eldorado
SymantecRansom.Troldesh
APEXMalicious
AvastWin32:Malware-gen
GDataTrojan.GenericKD.31923034
KasperskyTrojan.Win32.Fsysna.fciv
AlibabaTrojan:Win32/Fsysna.1292ccfd
NANO-AntivirusTrojan.Win32.Fsysna.fpnqal
AegisLabTrojan.Win32.Fsysna.4!c
RisingRansom.Shade!8.12CC (CLOUD)
Ad-AwareTrojan.GenericKD.31923034
SophosTroj/Ransom-FJI
ComodoMalware@#wja0br1zlgeh
F-SecureTrojan.TR/AD.Troldesh.jpldu
ZillyaTrojan.Kryptik.Win32.1633535
TrendMicroRansom.Win32.SHADE.THEBOAI
McAfee-GW-EditionTrickbot-FRDP!CF28320BF297
EmsisoftTrojan.GenericKD.31923034 (B)
IkarusTrojan-Ransom.Shade
F-ProtW32/Agent.AYH.gen!Eldorado
JiangminTrojan.Fsysna.jco
WebrootW32.Trojan.GenKD
AviraTR/AD.Troldesh.jpldu
Antiy-AVLTrojan/Win32.Fsysna
Endgamemalicious (high confidence)
ArcabitTrojan.Generic.D1E71B5A
ZoneAlarmTrojan.Win32.Fsysna.fciv
MicrosoftTrojan:Win32/Skeeyah.B!rfn
AhnLab-V3Malware/Win32.RL_Trojanspy.R298805
Acronissuspicious
ALYacTrojan.Ransom.Shade
VBA32BScope.Trojan.Fsysna
MalwarebytesRansom.Troldesh
PandaTrj/Agent.XL
ESET-NOD32a variant of Win32/Kryptik.GLWT
TrendMicro-HouseCallRansom.Win32.SHADE.THEBOAI
TencentWin32.Trojan.Fsysna.Szvc
YandexTrojan.Fsysna!
eGambitPE.Heur.InvalidSig
FortinetMalicious_Behavior.SB
AVGWin32:Malware-gen
Paloaltogeneric.ml
CrowdStrikewin/malicious_confidence_90% (W)
MaxSecureTrojan.Malware.74268355.susgen

How to remove Trojan:Win32/Skeeyah.B!rfn 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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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/Skeeyah.B!rfn 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/Skeeyah.B!rfn 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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