Trojan.Win32.SchoolGirl.dfg

Written by Robert Bailey

What is Trojan.Win32.SchoolGirl.dfg infection?

In this short article you will certainly discover concerning the interpretation of Trojan.Win32.SchoolGirl.dfg as well as its unfavorable influence on your computer system. Such ransomware are a type of malware that is specified by on the internet frauds to demand paying the ransom by a victim.

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Most of the cases, Trojan.Win32.SchoolGirl.dfg virus will instruct its victims to start funds move for the purpose of reducing the effects of the amendments that the Trojan infection has actually presented to the sufferer’s gadget.

Trojan.Win32.SchoolGirl.dfg Summary

These adjustments 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.
  • 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.
  • 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.
  • The executable is likely packed with VMProtect;
  • Uses Windows utilities for basic functionality;
  • Detects Sandboxie through the presence of a library;
  • Tries to suspend Cuckoo threads to prevent logging of malicious activity;
  • 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!
  • Exhibits possible ransomware file modification behavior;
  • 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.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the records situated on the target’s disk drive — so the victim can no longer make use of the data;
  • Preventing regular accessibility to the target’s workstation;

Trojan.Win32.SchoolGirl.dfg

One of the most regular networks whereby Trojan.Win32.SchoolGirl.dfg Trojans are infused are:

  • By means of phishing e-mails;
  • As a consequence of customer winding up on a source that organizes a destructive software;

As quickly as the Trojan is successfully injected, it will certainly either cipher the information on the victim’s PC or prevent the device from functioning in a proper way – while likewise putting a ransom note that points out the demand for the sufferers to effect the repayment for the objective of decrypting the papers or bring back the documents system back to the initial problem. In many instances, the ransom note will certainly come up when the client reboots the COMPUTER after the system has actually already been harmed.

Trojan.Win32.SchoolGirl.dfg circulation channels.

In numerous corners of the globe, Trojan.Win32.SchoolGirl.dfg grows by leaps as well as bounds. However, the ransom notes as well as tricks of extorting the ransom amount might differ relying on specific neighborhood (local) setups. The ransom money notes as well as techniques of obtaining the ransom money amount might vary depending on specific neighborhood (regional) settings.

Ransomware injection

As an example:

    Faulty alerts concerning unlicensed software application.

    In certain locations, the Trojans frequently wrongfully report having detected some unlicensed applications made it possible for on the target’s device. The alert after that requires the user to pay the ransom.

    Faulty declarations regarding unlawful web content.

    In nations where software application piracy is less prominent, this method is not as reliable for the cyber frauds. Conversely, the Trojan.Win32.SchoolGirl.dfg popup alert may falsely assert to be originating from a law enforcement establishment and will report having situated youngster porn or other prohibited data on the tool.

    Trojan.Win32.SchoolGirl.dfg popup alert may falsely assert to be deriving from a regulation enforcement institution and also will report having located youngster porn or various other prohibited data on the device. The alert will likewise consist of a need for the user to pay the ransom.

Technical details

File Info:

crc32: D3E3FE73
md5: 3b9e3cadea2e50381761bc92183a5c2b
name: 3B9E3CADEA2E50381761BC92183A5C2B.mlw
sha1: d0c692914bf67e130619b6f5e4e93911a35c0bfa
sha256: 534dc820470df4f1de874b8048be3f113fce82198dd957767ba461e8287db0ff
sha512: ee417f8b85d29f2bb76070665f35ac5a8c4941cdaf31fa37a0078c80264d464cb425584219775312026f8829929ce370f1f0336a65d71c9839a0bdeae383301a
ssdeep: 49152:OaKbM2SA4O1LWdCKrk/BIwmRRcEP4/zCx:OPbPSAh1LW7A/+NcqMC
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Trojan.Win32.SchoolGirl.dfg also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
Elastic malicious (high confidence)
McAfee Artemis!3B9E3CADEA2E
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_70% (D)
Cybereason malicious.14bf67
Symantec ML.Attribute.HighConfidence
APEX Malicious
Avast Win32:Malware-gen
Cynet Malicious (score: 100)
Kaspersky Trojan.Win32.SchoolGirl.dfg
NANO-Antivirus Trojan.Win32.SchoolGirl.febeld
Tencent Win32.Trojan.Schoolgirl.Lmli
Sophos Mal/Generic-S
F-Secure Heuristic.HEUR/AGEN.1103241
BitDefenderTheta Gen:NN.ZexaF.34670.STW@ampsaQei
McAfee-GW-Edition BehavesLike.Win32.Trojan.tc
FireEye Generic.mg.3b9e3cadea2e5038
SentinelOne Static AI – Suspicious PE
Avira HEUR/AGEN.1103241
eGambit Unsafe.AI_Score_80%
Microsoft Ransom:Win32/Genasom
AegisLab Trojan.Win32.Generic.4!c
ZoneAlarm Trojan.Win32.SchoolGirl.dfg
VBA32 BScope.Trojan.Dynamer
Malwarebytes Malware.Heuristic.1003
Panda Trj/GdSda.A
Rising Ransom.Genasom!8.293 (CLOUD)
Yandex Trojan.SchoolGirl!7jWM6sdw8aY
Fortinet W32/SchoolGirl.DFG!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Trojan.Generic.HxAAEpsA

How to remove Trojan.Win32.SchoolGirl.dfg 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 Trojan.Win32.SchoolGirl.dfg 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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Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Trojan.Win32.SchoolGirl.dfg 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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