Written by Robert Bailey

What is PUA:Win32/Downer infection?

In this post you will certainly discover about the interpretation of PUA:Win32/Downer and its negative influence on your computer system. Such ransomware are a kind of malware that is specified by online scams to demand paying the ransom by a victim.

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Most of the situations, PUA:Win32/Downer ransomware will advise its victims to start funds move for the purpose of neutralizing the changes that the Trojan infection has actually introduced to the victim’s gadget.

PUA:Win32/Downer Summary

These modifications can be as follows:

  • Presents an Authenticode digital signature;
  • Unconventionial binary language: Chinese (Simplified);
  • Unconventionial language used in binary resources: Chinese (Simplified);
  • The binary likely contains encrypted or compressed data.;
  • Ciphering the papers located on the victim’s hard disk — so the sufferer can no more utilize the data;
  • Preventing routine accessibility to the victim’s workstation;

Related domains:

downloader.downerapi.com Ransom.Wannacry


The most typical channels through which PUA:Win32/Downer Ransomware are injected are:

  • By methods of phishing emails;
  • As a consequence of user winding up on a source that holds a malicious software application;

As soon as the Trojan is successfully injected, it will certainly either cipher the data on the sufferer’s PC or stop the gadget from working in a proper manner – while additionally putting a ransom note that discusses the demand for the targets to effect the payment for the objective of decrypting the files or restoring the file system back to the preliminary problem. In a lot of circumstances, the ransom note will certainly come up when the customer restarts the PC after the system has actually currently been harmed.

PUA:Win32/Downer circulation networks.

In various corners of the globe, PUA:Win32/Downer grows by jumps as well as bounds. Nonetheless, the ransom money notes as well as methods of obtaining the ransom quantity may vary depending upon specific local (regional) settings. The ransom money notes and also methods of obtaining the ransom money quantity may differ depending on particular local (regional) settings.

Ransomware injection

For example:

    Faulty notifies regarding unlicensed software application.

    In specific areas, the Trojans commonly wrongfully report having detected some unlicensed applications made it possible for on the sufferer’s device. The sharp then demands the customer to pay the ransom money.

    Faulty declarations concerning unlawful material.

    In countries where software piracy is much less preferred, this approach is not as efficient for the cyber frauds. Alternatively, the PUA:Win32/Downer popup alert may falsely claim to be stemming from a law enforcement establishment and also will report having situated child porn or other prohibited data on the device.

    PUA:Win32/Downer popup alert might incorrectly assert to be acquiring from a regulation enforcement organization as well as will certainly report having situated child porn or other illegal information on the device. The alert will likewise have a requirement for the individual to pay the ransom money.

Technical details

File Info:

crc32: F9B7736B
md5: 2a16cc24ee0e65fa57479a8959d471d6
name: _______________5___gta5____________________________08881823.exe
sha1: c6a45a043195dc59878dc99d9a3ae239d008ce27
sha256: 270b8ef0532ef5a915f30a74716fb5afd77322c7078ee936a2c4af02a7f8d4fc
sha512: 26468cef0cdc58f85e1477a29cb8a064564440be1458a4d4b6213866d241f303db5de817741a2cce5897b44c51b02c822bea9e6e0454c1a9576fa5e9302918ef
ssdeep: 24576:cjzSNQDy1AOM8EHpU/QqBo521H6zf6IJZWpaamE3jdvvZQdSszdn:eny1ATpGh6zfdIhF3jdvBQdSszdn
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2018
InternalName: FastDownloader.exe
CompanyName: -
ProductName: x8f6fx4ef6x4e0bx8f7dx5668
FileDescription: x8f6fx4ef6x4e0bx8f7dx5668
OriginalFilename: FastDownloader.exe
Translation: 0x0804 0x04b0

PUA:Win32/Downer also known as:

GridinSoft Trojan.Ransom.Gen
MicroWorld-eScan Gen:Variant.Adware.Downloader.211
FireEye Generic.mg.2a16cc24ee0e65fa
McAfee Artemis!2A16CC24EE0E
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
K7AntiVirus Riskware ( 00544e421 )
BitDefender Gen:Variant.Adware.Downloader.211
K7GW Riskware ( 00544e421 )
Symantec Ransom.Wannacry
APEX Malicious
Paloalto generic.ml
GData Gen:Variant.Adware.Downloader.211
Rising Adware.Downloader!1.BD64 (CLOUD)
Ad-Aware Gen:Variant.Adware.Downloader.211
Emsisoft Application.Downloader (A)
Zillya Tool.Downer.Win32.49
Invincea heuristic
McAfee-GW-Edition Artemis!PUP
Sophos Mal/Generic-S
Ikarus PUA.RiskWare.Downer
Cyren W32/Adware.JGSA-6439
MAX malware (ai score=99)
Antiy-AVL GrayWare/Win32.Downer
Endgame malicious (high confidence)
Arcabit Trojan.Adware.Downloader.211
Microsoft PUA:Win32/Downer
AhnLab-V3 PUP/Win32.Generic.C3478818
ALYac Gen:Variant.Adware.Downloader.211
Malwarebytes PUP.Optional.FastDownloader
Panda Trj/Genetic.gen
ESET-NOD32 a variant of Win32/RiskWare.Downer.A
TrendMicro-HouseCall TROJ_GEN.R022H0CCJ20
eGambit Unsafe.AI_Score_51%
Fortinet Riskware/Downer
Webroot W32.Adware.Gen
AVG Win32:Adware-gen [Adw]
Avast Win32:Adware-gen [Adw]

How to remove PUA:Win32/Downer ransomware?

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 PUA:Win32/Downer 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 PUA:Win32/Downer you can always ask me in the comments for getting help.

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  1. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  2. More information about GridinSoft products: http://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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