Adware.Prepscram

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

What is Adware.Prepscram infection?

In this short article you will certainly find about the interpretation of Adware.Prepscram and also its negative impact on your computer. Such ransomware are a form of malware that is specified by online frauds to require paying the ransom money by a victim.

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Most of the instances, Adware.Prepscram ransomware will advise its targets to launch funds transfer for the objective of neutralizing the changes that the Trojan infection has actually presented to the target’s tool.

Adware.Prepscram Summary

These modifications 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.
  • Unconventionial binary language: Russian;
  • Unconventionial language used in binary resources: Russian;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files situated on the sufferer’s hard disk — so the target can no longer utilize the data;
  • Preventing routine 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.

Adware.Prepscram

One of the most typical networks where Adware.Prepscram Ransomware are infused are:

  • By methods of phishing emails;
  • As a repercussion of user ending up on a source that hosts a malicious software;

As soon as the Trojan is effectively injected, it will certainly either cipher the data on the sufferer’s PC or avoid the gadget from operating in a correct manner – while likewise positioning a ransom note that mentions the demand for the victims to effect the payment for the objective of decrypting the papers or restoring the documents system back to the first condition. In a lot of instances, the ransom money note will show up when the client restarts the PC after the system has actually currently been damaged.

Adware.Prepscram circulation networks.

In different edges of the globe, Adware.Prepscram grows by jumps and bounds. Nonetheless, the ransom money notes and tricks of extorting the ransom quantity might differ relying on specific neighborhood (local) settings. The ransom money notes as well as methods of extorting the ransom quantity might vary depending on specific regional (regional) setups.

Ransomware injection

As an example:

    Faulty signals concerning unlicensed software program.

    In certain areas, the Trojans commonly wrongfully report having actually spotted some unlicensed applications enabled on the sufferer’s tool. The alert after that demands the user to pay the ransom money.

    Faulty statements about prohibited content.

    In countries where software application piracy is less popular, this method is not as efficient for the cyber scams. Conversely, the Adware.Prepscram popup alert may incorrectly declare to be stemming from a police institution and also will certainly report having located child porn or various other unlawful information on the tool.

    Adware.Prepscram popup alert may incorrectly assert to be obtaining from a regulation enforcement institution and will report having located kid pornography or various other illegal data on the gadget. The alert will likewise have a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: 313E1A3D
md5: 008ff2fe6c476fd0b593b8733c60e83b
name: 008FF2FE6C476FD0B593B8733C60E83B.mlw
sha1: 7ee87a0cd62569d58a46f3a5704fdf501518e68e
sha256: 0c36642a99df43a99c03489c4d4de4d073eddf62762e419ff7e348dd47017531
sha512: 9849e5f7ee550aeb394e8a7121a38f77d9bf781d38f99af350d64c016ecfd485bca317e4ebbf2069990afc40aef183ede846aa6acfbf410d8c67181d76be51bb
ssdeep: 12288:hiXur+jZR/CTtEZ175KXUcqCKTkGvdb330ca2evZE869:hiXuKjyG175KACEwcR6Ef
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2018
FileVersion: 1.0.0.1
CompanyName: TODO:
ProductName: TODO:
ProductVersion: 1.0.0.1
FileDescription: TODO:
Translation: 0x0419 0x04b0

Adware.Prepscram also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 00528e801 )
Elasticmalicious (high confidence)
DrWebTrojan.Vittalia.14640
CynetMalicious (score: 100)
CAT-QuickHealSWB.Prepscram.JK6
ALYacGen:Variant.Ransom.GandCrab.1787
CylanceUnsafe
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_70% (D)
K7GWTrojan ( 005267551 )
Cybereasonmalicious.e6c476
CyrenW32/S-ec8ab2eb!Eldorado
ESET-NOD32a variant of Win32/Kryptik.GCWT
APEXMalicious
AvastFileRepMetagen [Malware]
Kasperskynot-a-virus:HEUR:AdWare.Win32.Generic
BitDefenderGen:Variant.Ransom.GandCrab.1787
NANO-AntivirusRiskware.Win32.Vittalia.eybsca
SUPERAntiSpywareRansom.GandCrab/Variant
MicroWorld-eScanGen:Variant.Ransom.GandCrab.1787
TencentWin32.Adware.Generic.Dbj
Ad-AwareGen:Variant.Ransom.GandCrab.1787
SophosMal/Generic-S
ComodoApplication.Win32.IStartSurf.BS@7lng48
BitDefenderThetaGen:NN.ZexaF.34608.pz0@aSKZhHbk
VIPRETrojan.Win32.Generic!BT
McAfee-GW-EditionBehavesLike.Win32.Generic.tt
FireEyeGeneric.mg.008ff2fe6c476fd0
EmsisoftGen:Variant.Ransom.GandCrab.1787 (B)
SentinelOneStatic AI – Malicious PE
AviraHEUR/AGEN.1103309
eGambitUnsafe.AI_Score_100%
MicrosoftSoftwareBundler:Win32/Prepscram
GDataGen:Variant.Ransom.GandCrab.1787
AhnLab-V3PUP/Win32.IStartSurf.R220101
Acronissuspicious
McAfeePacked-ZA!008FF2FE6C47
MAXmalware (ai score=88)
VBA32Adware.Prepscram
MalwarebytesAdware.IStartSurf
PandaTrj/Genetic.gen
RisingTrojan.Kryptik!1.B032 (CLOUD)
IkarusTrojan.Kryptik
FortinetW32/Kryptik.FXGV!tr
AVGFileRepMetagen [Malware]
Paloaltogeneric.ml
Qihoo-360Win32/Virus.Adware.b51

How to remove Adware.Prepscram virus?

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

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 Adware.Prepscram 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 Adware.Prepscram 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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