Trojan.Downloader.Powershell

What is Trojan.Downloader.Powershell infection?

In this article you will certainly find about the definition of Trojan.Downloader.Powershell as well as its negative impact on your computer system. Such ransomware are a form of malware that is elaborated by online frauds to require paying the ransom money by a victim.

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In the majority of the situations, Trojan.Downloader.Powershell ransomware will certainly advise its victims to initiate funds move for the function of neutralizing the changes that the Trojan infection has actually presented to the victim’s tool.

Trojan.Downloader.Powershell 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.
  • A process created a hidden window;
  • Executed a very long command line or script command which may be indicative of chained commands or obfuscation;
  • A scripting utility was executed;
  • Attempts to execute a powershell command with suspicious parameter/s;
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • 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 drive — so the victim can no more make use of the information;
  • Preventing normal 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.
Similar behavior
Related domains
z.whorecord.xyz BehavesLike.Win32.VirRansom.ch
a.tomx.xyz BehavesLike.Win32.VirRansom.ch

Trojan.Downloader.Powershell

The most normal channels where Trojan.Downloader.Powershell Ransomware Trojans are infused are:

  • By means of phishing emails;
  • As a consequence of individual winding up on a source that holds a harmful software program;

As soon as the Trojan is efficiently infused, it will certainly either cipher the data on the target’s PC or protect against the device from operating in a correct way – while likewise positioning a ransom note that states the requirement for the targets to impact the payment for the function of decrypting the documents or recovering the documents system back to the first problem. In the majority of instances, the ransom money note will turn up when the customer restarts the COMPUTER after the system has currently been damaged.

Trojan.Downloader.Powershell distribution channels.

In numerous corners of the globe, Trojan.Downloader.Powershell expands by jumps and bounds. However, the ransom money notes as well as methods of obtaining the ransom quantity might vary relying on particular regional (regional) setups. The ransom notes as well as tricks of obtaining the ransom quantity may differ depending on particular neighborhood (local) setups.

Ransomware injection

As an example:

    Faulty alerts concerning unlicensed software.

    In certain locations, the Trojans often wrongfully report having discovered some unlicensed applications made it possible for on the victim’s tool. The sharp then demands the user to pay the ransom money.

    Faulty statements about unlawful material.

    In nations where software piracy is less prominent, this technique is not as reliable for the cyber scams. Additionally, the Trojan.Downloader.Powershell popup alert may incorrectly claim to be originating from a law enforcement institution and also will report having situated kid pornography or other prohibited data on the tool.

    Trojan.Downloader.Powershell popup alert might wrongly assert to be obtaining from a law enforcement organization as well as will report having situated youngster porn or other prohibited information on the tool. The alert will in a similar way consist of a need for the user to pay the ransom money.

Technical details

File Info:

crc32: D8B04BFA
md5: b564d45526e6cef17ea609dd1421eb83
name: file-71421.exe
sha1: 27534c5ecc5ae3b0f053271880db6fbc68030f0a
sha256: 62799621c6b5f12997d312c905e9eb6f6e5a230025ec8aa1538c6b77f53aa58f
sha512: 6ec45d323626fb7d69582ed25550e66a08f273babe8c053b12c28c94bccc204b160e1300ceb28050479bae0a0ca6ec641b73c1d14656e7cf7fc4b207242f96f6
ssdeep: 24576:yI7my7Og9+MX7cvmbNY74T9xC6G0azcrUUsmu:R6WCMX7cvmpY74paTmu
type: PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows

Version Info:

0: [No Data]

Trojan.Downloader.Powershell also known as:

GridinSoft Trojan.Ransom.Gen
MicroWorld-eScan Trojan.GenericKD.33637969
McAfee GenericRXAA-AA!B564D45526E6
Cylance Unsafe
Zillya Downloader.Agent.Script.4555
AegisLab Trojan.Win32.Bsymem.4!c
Sangfor Malware
BitDefender Trojan.GenericKD.33637969
K7GW Trojan ( 005640d41 )
Arcabit Trojan.Generic.D2014651
BitDefenderTheta Gen:NN.ZexaF.34106.3CW@a0JcgCl
Symantec Trojan.Gen.2
ESET-NOD32 a variant of PowerShell/TrojanDownloader.Agent.COX
TrendMicro-HouseCall TROJ_GEN.R03FH0CDA20
Avast Win32:TrojanX-gen [Trj]
Kaspersky Trojan.Win32.Bsymem.qdl
Alibaba TrojanDownloader:Win32/Bsymem.15c91482
NANO-Antivirus Trojan.Win32.Bsymem.hikbnp
APEX Malicious
Ad-Aware Trojan.GenericKD.33637969
Emsisoft Trojan.GenericKD.33637969 (B)
Comodo Malware@#n0ez2l8bm2bf
F-Secure Trojan.TR/Dldr.Agent.dsfjb
DrWeb Trojan.DownLoader33.26839
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.VirRansom.ch
Fortinet W32/Agent.COX!tr
Sophos Mal/Generic-S
Cyren W32/Trojan.ODBY-6352
Jiangmin Trojan.Bsymem.rh
Avira TR/Dldr.Agent.dsfjb
MAX malware (ai score=83)
Antiy-AVL Trojan[Downloader]/PowerShell.Agent
Microsoft Trojan:Win32/Occamy.C
ZoneAlarm Trojan.Win32.Bsymem.qdl
AhnLab-V3 Trojan/Win32.Azorult.C4042418
VBA32 Trojan.Bsymem
ALYac Trojan.GenericKD.33637969
TACHYON Trojan/W32.Agent.914944.BE
Malwarebytes Trojan.Downloader.Powershell
Panda Trj/GdSda.A
Tencent Win32.Trojan.Bsymem.Pepg
Ikarus Trojan-Downloader.PowerShell.Agent
eGambit Unsafe.AI_Score_92%
GData Trojan.GenericKD.33637969
MaxSecure Trojan.Malware.83413879.susgen
AVG Win32:TrojanX-gen [Trj]
Paloalto generic.ml
Qihoo-360 Win32/Trojan.fc8

How to remove Trojan.Downloader.Powershell 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

The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes.2.

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.Downloader.Powershell 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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If the guide doesn’t help you to remove Trojan.Downloader.Powershell 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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