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The Daily Insight

UDS:Trojan.Win32.SchoolBoy

Author

Daniel Foster

Updated on March 13, 2026

What is UDS:Trojan.Win32.SchoolBoy infection?

In this article you will certainly find regarding the meaning of UDS:Trojan.Win32.SchoolBoy and its negative effect on your computer system. Such ransomware are a type of malware that is specified by on-line frauds to demand paying the ransom by a victim.

In the majority of the instances, UDS:Trojan.Win32.SchoolBoy ransomware will advise its sufferers to start funds transfer for the function of neutralizing the changes that the Trojan infection has actually presented to the target’s tool.

UDS:Trojan.Win32.SchoolBoy Summary

These alterations can be as follows:

  • 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!
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers located on the sufferer’s hard disk — so the sufferer can no more make use of the data;
  • Preventing regular accessibility to the victim’s workstation;

UDS:Trojan.Win32.SchoolBoy

The most common networks whereby UDS:Trojan.Win32.SchoolBoy Trojans are injected are:

  • By ways of phishing emails;
  • As an effect of individual winding up on a source that hosts a harmful software application;

As quickly as the Trojan is effectively injected, it will either cipher the data on the sufferer’s PC or prevent the gadget from working in an appropriate fashion – while likewise positioning a ransom money note that points out the demand for the sufferers to effect the payment for the objective of decrypting the files or restoring the data system back to the preliminary problem. In most instances, the ransom money note will come up when the customer restarts the COMPUTER after the system has currently been harmed.

UDS:Trojan.Win32.SchoolBoy circulation channels.

In numerous edges of the world, UDS:Trojan.Win32.SchoolBoy grows by jumps and bounds. Nonetheless, the ransom money notes as well as methods of extorting the ransom money amount might vary relying on certain neighborhood (local) settings. The ransom notes and also tricks of extorting the ransom amount may vary depending on certain neighborhood (local) setups.

Ransomware injection

For instance:

    Faulty notifies about unlicensed software program.

    In certain areas, the Trojans typically wrongfully report having found some unlicensed applications enabled on the target’s tool. The sharp after that requires the customer to pay the ransom.

    Faulty statements regarding illegal content.

    In nations where software program piracy is much less preferred, this technique is not as efficient for the cyber fraudulences. Conversely, the UDS:Trojan.Win32.SchoolBoy popup alert might incorrectly claim to be originating from a police organization and also will report having situated kid pornography or other unlawful data on the device.

    UDS:Trojan.Win32.SchoolBoy popup alert might incorrectly assert to be obtaining from a legislation enforcement institution and also will certainly report having located kid pornography or various other illegal information on the gadget. The alert will similarly consist of a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: 5A9E4073md5: 27ff81228e1867966df9e43999e197d4name: 27FF81228E1867966DF9E43999E197D4.mlwsha1: a4770f760cbad0ceae1a93f500297044104c62d0sha256: 6330710dc9eabb296a003e849fb5b915e819d74beae9c93ed5278bd278a33dfcsha512: 89bb41ad815a0c5b20830025163cb524f6dacf05eb86a46736e1b94fdf9116820be6e79c8ccf0ac8afd068f179d565060b633ca838f5058667f70ff52ec6e64fssdeep: 6144:UBlkZvaF4NTBmaGjl0lNpoY/Q1d4KT18sA7nCWtK21O0xgG:UoSWNTArENeSWxnAdDxbtype: PE32 executable (console) Intel 80386, for MS Windows

Version Info:

0: [No Data]

UDS:Trojan.Win32.SchoolBoy also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware2
Elasticmalicious (high confidence)
CynetMalicious (score: 100)
CylanceUnsafe
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_70% (W)
Cybereasonmalicious.60cbad
CyrenW32/Delf.MV.gen!Eldorado
SymantecML.Attribute.HighConfidence
APEXMalicious
KasperskyUDS:Trojan.Win32.SchoolBoy
SophosML/PE-A
BitDefenderThetaGen:NN.ZexaF.34670.puW@aSYLH4
McAfee-GW-EditionBehavesLike.Win32.Ransom.dc
FireEyeGeneric.mg.27ff81228e186796
SentinelOneStatic AI – Suspicious PE
eGambitUnsafe.AI_Score_99%
MicrosoftProgram:Win32/Wacapew.C!ml
AegisLabTrojan.Win32.Encoder.trrL
McAfeeArtemis!27FF81228E18
MalwarebytesMalware.Heuristic.1008
RisingMalware.Heuristic!ET#97% (RDMK:cmRtazpx+GccodZygRWbweLSk4Sn)
Paloaltogeneric.ml

How to remove UDS:Trojan.Win32.SchoolBoy ransomware?

There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft">2.

Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

Download GridinSoft Anti-Malware

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 UDS:Trojan.Win32.SchoolBoy 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 UDS:Trojan.Win32.SchoolBoy you can always ask me in the comments for getting help.

References

  1. GridinSoft Anti-Malware Review from HowToFix site:
  2. More information about GridinSoft products: