What is Win32/TrojanDropper.Delf.NYO infection?

In this article you will discover regarding the interpretation of Win32/TrojanDropper.Delf.NYO and also its adverse effect on your computer system. Such ransomware are a type of malware that is clarified by online scams to demand paying the ransom money by a victim.

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Most of the cases, Win32/TrojanDropper.Delf.NYO virus will advise its victims to initiate funds transfer for the function of neutralizing the amendments that the Trojan infection has actually presented to the target’s device.

Win32/TrojanDropper.Delf.NYO 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 attempted to delay the analysis task.;
  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • Unconventionial language used in binary resources: Chinese (Simplified);
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses Windows utilities for basic functionality;
  • 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.
  • Creates a copy of itself;
  • Creates known PcClient mutex and/or file changes.;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files found on the target’s hard drive — so the target can no more utilize the information;
  • Preventing regular accessibility to the target’s workstation;


The most typical networks whereby Win32/TrojanDropper.Delf.NYO Trojans are infused are:

  • By ways of phishing emails;
  • As a repercussion of user winding up on a source that organizes a destructive software application;

As soon as the Trojan is effectively infused, it will either cipher the information on the sufferer’s PC or protect against the device from working in an appropriate way – while additionally positioning a ransom money note that points out the demand for the targets to impact the payment for the function of decrypting the papers or bring back the file system back to the first condition. In many circumstances, the ransom money note will come up when the client reboots the COMPUTER after the system has currently been damaged.

Win32/TrojanDropper.Delf.NYO circulation networks.

In numerous edges of the world, Win32/TrojanDropper.Delf.NYO grows by jumps and also bounds. Nevertheless, the ransom notes and also methods of obtaining the ransom quantity might differ relying on certain neighborhood (regional) setups. The ransom notes as well as tricks of obtaining the ransom quantity may differ depending on certain regional (local) setups.

Ransomware injection

As an example:

    Faulty notifies regarding unlicensed software.

    In specific locations, the Trojans frequently wrongfully report having actually found some unlicensed applications enabled on the victim’s device. The alert then demands the customer to pay the ransom money.

    Faulty declarations regarding prohibited web content.

    In countries where software application piracy is much less preferred, this technique is not as effective for the cyber scams. Alternatively, the Win32/TrojanDropper.Delf.NYO popup alert might wrongly declare to be stemming from a law enforcement institution and will certainly report having located youngster porn or various other illegal data on the gadget.

    Win32/TrojanDropper.Delf.NYO popup alert may wrongly declare to be deriving from a regulation enforcement establishment as well as will report having located youngster pornography or various other unlawful information on the tool. The alert will in a similar way include a demand for the customer to pay the ransom.

Technical details

File Info:

crc32: 0FC4DA5B
md5: 1f0cc67683a722384939585e600ba302
name: 1F0CC67683A722384939585E600BA302.mlw
sha1: e16d6f43aa077d38b04eaf1098bdf0320f9e449c
sha256: 8c726a26000cf79ec030a2ace6291953c2ff4ebf32675503117d590ae13f2b3a
sha512: 0c809f2a21a23830ee915fdab31de3656eb38116fc177d5d10c9c2865f395c7378567717ea6b6595d9a0748fae1cf1a6937dfd97601bf34116781a7e60608188
ssdeep: 3072:lDskFLzTz69/4LJccv5tHXgoYktmBHALhhKbgPwkvx+A+7psBYIwxaiyN+KYtIL:lQk5zTz69QLJccv5tHXgoYktmBHALhh
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/TrojanDropper.Delf.NYO also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 0032d94a1 )
Elastic malicious (high confidence)
DrWeb Trojan.MulDrop3.18798
Cynet Malicious (score: 100)
CAT-QuickHeal Backdoor.Farfli
ALYac Dropped:Generic.Malware.SB.C6D73E1F
Zillya Dropper.Delf.Win32.12211
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Ransom:Win32/Blocker.dfd5cbb9
K7GW Trojan ( 0032d94a1 )
Cybereason malicious.683a72
Symantec Trojan Horse
ESET-NOD32 Win32/TrojanDropper.Delf.NYO
APEX Malicious
TotalDefense Win32/Bancos.ABHB
Avast Win32:Malware-gen
ClamAV Win.Trojan.Agent-351416
Kaspersky Trojan-Ransom.Win32.Blocker.iuik
BitDefender Dropped:Generic.Malware.SB.C6D73E1F
NANO-Antivirus Trojan.Win32.Drop.rgzhd
ViRobot Trojan.Win32.A.Scar.170496
MicroWorld-eScan Dropped:Generic.Malware.SB.C6D73E1F
Tencent Win32.Trojan.Blocker.Dyqu
Ad-Aware Dropped:Generic.Malware.SB.C6D73E1F
Sophos ML/PE-A + Mal/Behav-214
Comodo TrojWare.Win32.PSW.OnLineGames.~DQR@1ez977
BitDefenderTheta AI:Packer.B74EC9311C
VIPRE BehavesLike.Win32.Malware.ssc (mx-v)
McAfee-GW-Edition GenericRXEP-BJ!1F0CC67683A7
Emsisoft Dropped:Generic.Malware.SB.C6D73E1F (B)
SentinelOne Static AI – Malicious PE
Webroot W32.Trojan.Gen
Avira DR/Delphi.Gen
Kingsoft Heur.SSC.1064462.1216.(kcloud)
Microsoft Ransom:Win32/Blocker
AegisLab Trojan.Win32.Blocker.j!c
GData Dropped:Generic.Malware.SB.C6D73E1F
TACHYON Ransom/W32.DP-Blocker.172032
AhnLab-V3 Trojan/Win32.Agent.R105261
McAfee GenericRXEP-BJ!1F0CC67683A7
MAX malware (ai score=85)
VBA32 BScope.Trojan.SvcHorse.01643
Panda Generic Malware
TrendMicro-HouseCall BKDR_HUPIGON.GEN
Rising Ransom.Blocker!8.12A (CLOUD)
Yandex Trojan.GenAsa!/rE7QATmusw
Ikarus Backdoor.Win32.Hupigon
Fortinet W32/QQPass.FQ!tr.pws
AVG Win32:Malware-gen
Qihoo-360 Backdoor.Win32.GrayPigeon.P

How to remove Win32/TrojanDropper.Delf.NYO virus?

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 Win32/TrojanDropper.Delf.NYO 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/TrojanDropper.Delf.NYO you can always ask me in the comments for getting help.

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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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