Generic PUA BK (PUA)

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

What is Generic PUA BK (PUA) infection?

In this short article you will certainly discover concerning the definition of Generic PUA BK (PUA) as well as its negative effect on your computer. Such ransomware are a type of malware that is elaborated by on the internet scams to demand paying the ransom by a target.

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In the majority of the situations, Generic PUA BK (PUA) ransomware will certainly advise its victims to initiate funds move for the purpose of neutralizing the changes that the Trojan infection has introduced to the victim’s tool.

Generic PUA BK (PUA) Summary

These alterations 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.
  • 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 papers found on the target’s hard disk — so the victim can no longer make use of the information;
  • Preventing regular access 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.

Generic PUA BK (PUA)

One of the most normal channels through which Generic PUA BK (PUA) Trojans are injected are:

  • By means of phishing e-mails;
  • As an effect of customer winding up on a source that organizes a malicious software application;

As quickly as the Trojan is effectively injected, it will either cipher the data on the sufferer’s PC or avoid the gadget from operating in an appropriate manner – while additionally putting a ransom money note that mentions the need for the targets to impact the payment for the objective of decrypting the files or bring back the file system back to the preliminary condition. In the majority of instances, the ransom money note will turn up when the client restarts the PC after the system has actually already been harmed.

Generic PUA BK (PUA) distribution channels.

In numerous corners of the world, Generic PUA BK (PUA) expands by jumps as well as bounds. Nevertheless, the ransom money notes and methods of extorting the ransom amount may differ depending upon specific regional (regional) settings. The ransom money notes as well as techniques of extorting the ransom money quantity may vary depending on particular regional (regional) setups.

Ransomware injection

As an example:

    Faulty alerts concerning unlicensed software program.

    In particular locations, the Trojans frequently wrongfully report having actually discovered some unlicensed applications allowed on the sufferer’s tool. The alert then demands the individual to pay the ransom.

    Faulty declarations about illegal content.

    In nations where software application piracy is less popular, this method is not as effective for the cyber fraudulences. Conversely, the Generic PUA BK (PUA) popup alert might wrongly assert to be originating from a law enforcement institution as well as will report having located child pornography or various other prohibited data on the gadget.

    Generic PUA BK (PUA) popup alert may wrongly claim to be acquiring from a legislation enforcement establishment and will certainly report having situated child porn or various other prohibited data on the device. The alert will likewise contain a need for the customer to pay the ransom.

Technical details

File Info:

crc32: F700674C
md5: 4fa0a16dac8432664e20b9b854585cb3
name: 4FA0A16DAC8432664E20B9B854585CB3.mlw
sha1: 1af77016772100c405a5914fc35579d81bd11804
sha256: 7cba2ee636730e7511a67b73968f019a65b99675255396f2088f1cae7db5ac1d
sha512: 145f979f0a32660df949cd23a518104b5cbc9d85f88635db7e09b8ad74bd8dc76a005b6658762e8e1f4466379eff56cf9018d4f91659ceacb854fd62c4c6cd58
ssdeep: 12288:2ivYq5Svfa3jZE2uDQYpI9B1NVn+4QW9RQBzMWI/8kqr8Cl6Q3:2ivH3dE2uQYpkNhRQW9RQB4WLZ
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

Generic PUA BK (PUA) also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 00528e801 )
Elastic malicious (high confidence)
DrWeb Trojan.Vittalia.14640
Cynet Malicious (score: 100)
CAT-QuickHeal SWB.Prepscram.JK6
ALYac Gen:Variant.Ransom.GandCrab.1787
Zillya Adware.Generic.Win32.84191
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_70% (D)
Alibaba Trojan:Win32/Kryptik.ce16c485
K7GW Trojan ( 005267551 )
Cybereason malicious.dac843
Cyren W32/S-ec8ab2eb!Eldorado
Symantec Adware.IstartSurf
ESET-NOD32 a variant of Win32/Kryptik.GCWT
APEX Malicious
Avast FileRepMetagen [Adw]
Kaspersky not-a-virus:HEUR:AdWare.Win32.Generic
BitDefender Gen:Variant.Ransom.GandCrab.1787
NANO-Antivirus Riskware.Win32.Vittalia.eyettt
SUPERAntiSpyware Ransom.GandCrab/Variant
MicroWorld-eScan Gen:Variant.Ransom.GandCrab.1787
Tencent Win32.Adware.Generic.Phgq
Ad-Aware Gen:Variant.Ransom.GandCrab.1787
Sophos Generic PUA BK (PUA)
Comodo Application.Win32.IStartSurf.BS@7lng48
BitDefenderTheta Gen:NN.ZexaF.34608.pz0@aSKZhHbk
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.Generic.tt
FireEye Generic.mg.4fa0a16dac843266
Emsisoft Gen:Variant.Ransom.GandCrab.1787 (B)
SentinelOne Static AI – Malicious PE
Avira HEUR/AGEN.1103309
eGambit Unsafe.AI_Score_100%
Microsoft SoftwareBundler:Win32/Prepscram
Arcabit Trojan.Ransom.GandCrab.D6FB
AegisLab Adware.Win32.Generic.2!c
GData Gen:Variant.Ransom.GandCrab.1787
AhnLab-V3 PUP/Win32.IStartSurf.R220101
Acronis suspicious
McAfee Packed-ZA!4FA0A16DAC84
MAX malware (ai score=82)
VBA32 Trojan.Vittalia
Malwarebytes Adware.IStartSurf
Panda Trj/Genetic.gen
Rising Trojan.Kryptik!1.B032 (CLOUD)
Ikarus Trojan.Kryptik
Fortinet W32/Kryptik.FXGV!tr
AVG FileRepMetagen [Adw]
Paloalto generic.ml
Qihoo-360 Win32/Virus.Adware.b51

How to remove Generic PUA BK (PUA) 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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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 Generic PUA BK (PUA) 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 Generic PUA BK (PUA) 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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