Win32/Spy.Tuscas.K

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

What is Win32/Spy.Tuscas.K infection?

In this short article you will locate regarding the definition of Win32/Spy.Tuscas.K as well as its unfavorable impact on your computer. Such ransomware are a kind of malware that is specified by on-line fraudulences to demand paying the ransom money by a target.

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In the majority of the situations, Win32/Spy.Tuscas.K infection will certainly instruct its victims to launch funds move for the function of counteracting the amendments that the Trojan infection has actually presented to the sufferer’s device.

Win32/Spy.Tuscas.K Summary

These modifications 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.
  • Injection with CreateRemoteThread in a remote process;
  • 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.
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • 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.

  • A process created a hidden window;
  • 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.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Code injection with CreateRemoteThread in a remote process;
  • Sniffs keystrokes;
  • A potential decoy document was displayed to the user;
  • A system process is generating network traffic likely as a result of process injection;
  • 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 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.
  • Creates a copy of itself;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the records located on the sufferer’s hard drive — so the sufferer can no longer make use of the data;
  • Preventing routine accessibility 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.

Win32/Spy.Tuscas.K

One of the most regular networks whereby Win32/Spy.Tuscas.K Ransomware are infused are:

  • By ways of phishing e-mails;
  • As a consequence of customer winding up on a resource that organizes a destructive software application;

As soon as the Trojan is effectively injected, it will either cipher the data on the sufferer’s PC or protect against the gadget from operating in a proper manner – while likewise placing a ransom money note that mentions the need for the targets to impact the settlement for the purpose of decrypting the records or bring back the documents system back to the preliminary condition. In a lot of instances, the ransom note will certainly turn up when the client restarts the PC after the system has already been damaged.

Win32/Spy.Tuscas.K distribution networks.

In different edges of the world, Win32/Spy.Tuscas.K expands by jumps and bounds. Nevertheless, the ransom notes and also techniques of obtaining the ransom amount might differ depending upon certain local (local) setups. The ransom money notes and methods of extorting the ransom amount might vary depending on particular local (local) settings.

Ransomware injection

As an example:

    Faulty alerts about unlicensed software.

    In particular areas, the Trojans commonly wrongfully report having actually spotted some unlicensed applications made it possible for on the sufferer’s gadget. The alert then requires the individual to pay the ransom.

    Faulty statements regarding prohibited material.

    In nations where software application piracy is much less preferred, this approach is not as efficient for the cyber frauds. Additionally, the Win32/Spy.Tuscas.K popup alert might falsely claim to be stemming from a police establishment as well as will certainly report having situated kid pornography or other unlawful data on the device.

    Win32/Spy.Tuscas.K popup alert might incorrectly declare to be acquiring from a legislation enforcement organization and will certainly report having situated kid porn or various other illegal information on the device. The alert will in a similar way include a demand for the customer to pay the ransom money.

Technical details

File Info:

crc32: EFF9A473
md5: 3bdd8edc23a11f546d67d850fad2411f
name: 3BDD8EDC23A11F546D67D850FAD2411F.mlw
sha1: b02f91bcb3192a8d960dd9dcc1a47765f0b8e2a2
sha256: 9fb73f9ae4c6b2f19d74300b46915cd80979f9576ed23aa3eaa5ceb3b7f384cc
sha512: 1dc88c43a8268bc23d0607b7214ec3f9d998d75f93665639bf6b6311b0b4b3b9082224eec862951a68090a2d9d333c501c93fcab312090199d2e503647b1c44c
ssdeep: 3072:QBI5ArKGCnhgU1XA+ArXjeaMoh6lgUaVwQ+/76bSSN+PS7VyoCeJ6iko7lWZ:QK5ArKjbAxXSaegUqGeGpBohMo7lW
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Spy.Tuscas.K also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
Elasticmalicious (high confidence)
MicroWorld-eScanWin32.Doboc.Gen.1
FireEyeGeneric.mg.3bdd8edc23a11f54
CAT-QuickHealTrojan.Mauvaise.SL1
McAfeeW32/DocumentCrypt
CylanceUnsafe
VIPREVirus.Win32.Ursnif.ha (v)
SangforTrojan.Win32.Save.a
BitDefenderWin32.Doboc.Gen.1
K7GWTrojan ( 0040fa661 )
K7AntiVirusTrojan ( 0040fa661 )
BaiduWin32.Trojan.Kryptik.iq
CyrenW32/S-d532404c!Eldorado
SymantecW32.Tempedreve.E!inf
APEXMalicious
AvastWin32:Malware-gen
ClamAVWin.Trojan.Doboc-320
KasperskyVirus.Win32.PolyRansom.c
AlibabaVirus:Win32/PolyRansom.d6073fc0
NANO-AntivirusTrojan.Win32.PolyRansom.dpzfcr
AegisLabVirus.Win32.PolyRansom.mhJM
RisingTrojan.Win32.Kryptik.z (CLOUD)
Ad-AwareWin32.Doboc.Gen.1
EmsisoftWin32.Doboc.Gen.1 (B)
ComodoTrojWare.Win32.Ursnif.KIL@5jjifs
F-SecureTrojan.TR/Crypt.XPACK.Gen
DrWebTrojan.Inject1.53269
ZillyaVirus.PolyRansom.Win32.3
TrendMicroPE_URSNIF.E
McAfee-GW-EditionBehavesLike.Win32.DocumentCrypt.fm
SophosML/PE-A + W32/MPhage-B
IkarusTrojan.Win32.Crypt
JiangminVirus.PolyRansom.eb
eGambitUnsafe.AI_Score_99%
AviraTR/Crypt.XPACK.Gen
MAXmalware (ai score=100)
Antiy-AVLVirus/Win32.PolyRansom.c
MicrosoftTrojan:Win32/Ursnif.KSV!MTB
ArcabitWin32.Doboc.Gen.1
SUPERAntiSpywareBackdoor.Hupigon/Variant
ZoneAlarmVirus.Win32.PolyRansom.c
GDataWin32.Doboc.Gen.1
CynetMalicious (score: 100)
AhnLab-V3Trojan/Win32.Ursnif.R162841
Acronissuspicious
BitDefenderThetaAI:FileInfector.1210116D11
ALYacWin32.Doboc.Gen.1
TACHYONTrojan/W32.Doboc
VBA32SScope.Trojan.FakeAV.01681
MalwarebytesPolyRansom.Virus.FileInfector.DDS
PandaW32/CryptD.C
ESET-NOD32Win32/Spy.Tuscas.K
TrendMicro-HouseCallPE_URSNIF.E
TencentTrojan.Win32.Tuscas.a
YandexTrojan.GenAsa!RK3x+npEgzs
SentinelOneStatic AI – Suspicious PE
MaxSecureVirus.w32.PolyRansom.C
FortinetW32/Tuscas.A!tr
WebrootW32.Ursnif.Gen
AVGWin32:Malware-gen
Cybereasonmalicious.c23a11
Paloaltogeneric.ml
Qihoo-360Win32/Ransom.PolyRansom.HxQBRBYA

How to remove Win32/Spy.Tuscas.K 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 Win32/Spy.Tuscas.K 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 Win32/Spy.Tuscas.K 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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