Win32:Dropper-OWM [Drp]

What is Win32:Dropper-OWM [Drp] infection?

In this short article you will certainly locate concerning the interpretation of Win32:Dropper-OWM [Drp] and its unfavorable influence on your computer. Such ransomware are a type of malware that is specified by online fraudulences to require paying the ransom by a target.

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In the majority of the instances, Win32:Dropper-OWM [Drp] ransomware will certainly advise its sufferers to start funds move for the purpose of reducing the effects of the modifications that the Trojan infection has presented to the target’s tool.

Win32:Dropper-OWM [Drp] Summary

These modifications 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.
  • Compression (or decompression);
  • 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.
  • Attempts to stop active services;
  • Installs itself for autorun at Windows startup. There is simple tactic using the Windows startup folder located at:
    C:\Users\[user-name]\AppData\Roaming\Microsoft\Windows\StartMenu\Programs\Startup. Shortcut links (.lnk extension) placed in this folder will cause Windows to launch the application each time [user-name] logs into Windows.

    The registry run keys perform the same action, and can be located in different locations:

    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • 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.
  • Operates on local firewall’s policies and settings;
  • Creates a copy of itself;
  • Attempts to disable UAC.

    User Account Control or just UAC is a part of the Windows security system which prevents apps from making unwanted changes on PC.

    UAC includes several technologies 1:

    • File and egistry Virtualization;
    • Same-desktop Elevation;
    • Filtered Token;
    • User Interface Privilege Isolation;
    • Protected Mode Internet Explorer;
    • Installer Detection;
  • Attempts to disable Windows Defender;
  • Attempts to modify or disable Security Center warnings;
  • Ciphering the documents situated on the sufferer’s hard disk drive — so the target can no longer use the data;
  • Preventing normal accessibility to the victim’s workstation;

Win32:Dropper-OWM [Drp]

One of the most typical channels where Win32:Dropper-OWM [Drp] Ransomware Trojans are infused are:

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

As quickly as the Trojan is effectively injected, it will either cipher the information on the victim’s PC or prevent the gadget from working in a proper way – while likewise putting a ransom money note that mentions the demand for the victims to effect the repayment for the purpose of decrypting the files or recovering the documents system back to the initial condition. In many instances, the ransom note will certainly show up when the customer reboots the COMPUTER after the system has actually currently been damaged.

Win32:Dropper-OWM [Drp] distribution channels.

In various edges of the world, Win32:Dropper-OWM [Drp] grows by leaps and bounds. Nevertheless, the ransom notes and also methods of obtaining the ransom money quantity may vary depending on certain local (local) setups. The ransom notes and also techniques of extorting the ransom money quantity might vary depending on specific regional (local) setups.

Ransomware injection

As an example:

    Faulty notifies concerning unlicensed software application.

    In specific locations, the Trojans usually wrongfully report having found some unlicensed applications made it possible for on the victim’s gadget. The alert after that demands the individual to pay the ransom.

    Faulty declarations about unlawful content.

    In countries where software application piracy is much less prominent, this method is not as reliable for the cyber fraudulences. Alternatively, the Win32:Dropper-OWM [Drp] popup alert may incorrectly claim to be deriving from a law enforcement establishment and also will certainly report having located youngster porn or other illegal information on the tool.

    Win32:Dropper-OWM [Drp] popup alert might wrongly assert to be deriving from a legislation enforcement organization and will certainly report having located kid pornography or various other unlawful data on the tool. The alert will similarly consist of a need for the customer to pay the ransom.

Technical details

File Info:

crc32: E8A48790
md5: 8e94f14f8fb15f902cf07879e3fa1f95
name: 8E94F14F8FB15F902CF07879E3FA1F95.mlw
sha1: 8db61cc16a7ef3f030886f36cfcca50d791c65c3
sha256: 0b5e83d4d07507df2a3056d66d8d657b11dd70b62f9c21d3fe62fad5beddb901
sha512: af9e36651baeabd550c700bc0d65ecb9e1cabb762cb0e4f25a560bc32867a98f97956b5b05a3184e34626295dafee818cc6f2d87dd2eac2489752b6f54e90e0a
ssdeep: 3072:f8bk5j3+IwuHUpM0J2fUWkk+l+9uyLlcaSeONSDdqzObwhVyTnrpStHI2Vd6q9/:Go0cfU89uypcwONudPwhMTnmIu9/Dlz
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright xa9 RandomNumer-2012
InternalName: Layouts
FileDescription: Involves
CompanyName: PCzapper.TV

Win32:Dropper-OWM [Drp] also known as:

GridinSoft Trojan.Ransom.Gen
Elastic malicious (high confidence)
DrWeb Trojan.Rmnet.59
MicroWorld-eScan Trojan.Cripack.Gen.1
CAT-QuickHeal Ransom.Tescrypt.MUE.ZZ4
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba TrojanDropper:Win32/Nimnul.4d626d64
K7GW Trojan ( 0055e4051 )
K7AntiVirus Trojan ( 0055e4051 )
Cyren W32/Trojan.TXYH-9353
Symantec Trojan.Asprox.B
ESET-NOD32 Win32/Ramnit.BV
APEX Malicious
Avast Win32:Dropper-OWM [Drp]
Cynet Malicious (score: 100)
Kaspersky Trojan.Win32.Nimnul.vqf
BitDefender Trojan.Cripack.Gen.1
NANO-Antivirus Trojan.Win32.Rmnet.dxznlj
Tencent Win32.Virus.Ramnit.Eeho
Ad-Aware Trojan.Cripack.Gen.1
Sophos ML/PE-A + Mal/Ransom-EG
Comodo Malware@#65wfxfkd1nsd
BitDefenderTheta Gen:NN.ZexaF.34670.mq0@aqa34jii
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.Ransomware.ch
FireEye Generic.mg.8e94f14f8fb15f90
Emsisoft Trojan.Cripack.Gen.1 (B)
Jiangmin Trojan.Nimnul.ag
Webroot W32.Trojan.Gen
Avira HEUR/AGEN.1101450
eGambit Unsafe.AI_Score_97%
Kingsoft Win32.Infected.Ramnit.sr.(kcloud)
Microsoft TrojanDropper:Win32/Evotob.B
Arcabit Trojan.Cripack.Gen.1
AegisLab Trojan.Multi.Generic.4!c
GData Trojan.Cripack.Gen.1
AhnLab-V3 Malware/Win32.Generic.C1174379
McAfee Artemis!8E94F14F8FB1
MAX malware (ai score=95)
VBA32 Malware-Cryptor.Limpopo
Malwarebytes MachineLearning/Anomalous.100%
Panda Trj/Genetic.gen
Rising Virus.Ramnit!8.4 (CLOUD)
Ikarus Trojan.Win32.PSW
MaxSecure Trojan.Malware.300983.susgen
Fortinet PossibleThreat.SB!tr
AVG Win32:Dropper-OWM [Drp]
Qihoo-360 Win32/Virus.Ramnit.HwcBEpsA

How to remove Win32:Dropper-OWM [Drp] 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 GridinSoft2

There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft3.

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 Win32:Dropper-OWM [Drp] 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 Win32:Dropper-OWM [Drp] you can always ask me in the comments for getting help.

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References

  1. Microsoft Ignite: How to disable User Account Control (UAC) on Windows Server
  2. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  3. 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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