What is Win32/Diskcoder.Petya.D infection?

In this article you will find concerning the meaning of Win32/Diskcoder.Petya.D as well as its negative influence on your computer. Such ransomware are a form of malware that is elaborated by on the internet scams to demand paying the ransom money by a sufferer.

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In the majority of the situations, Win32/Diskcoder.Petya.D virus will instruct its targets to initiate funds move for the purpose of counteracting the amendments that the Trojan infection has actually presented to the target’s tool.

Win32/Diskcoder.Petya.D 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.
  • 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.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Likely installs a bootkit via raw harddisk modifications;
  • Attempts to restart the guest VM;
  • Mimics the file times of a Windows system file;
  • Creates a copy of itself;
  • Creates a slightly modified copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the records found on the target’s hard drive — so the target can no more use 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.


One of the most normal networks where Win32/Diskcoder.Petya.D Ransomware Trojans are infused are:

  • By ways of phishing emails;
  • As a repercussion of user winding up on a resource that organizes a malicious software program;

As soon as the Trojan is efficiently infused, it will either cipher the information on the sufferer’s PC or avoid the tool from working in a correct manner – while additionally putting a ransom note that states the demand for the sufferers to effect the settlement for the function of decrypting the records or restoring the data system back to the first condition. In most circumstances, the ransom money note will certainly show up when the customer reboots the COMPUTER after the system has already been damaged.

Win32/Diskcoder.Petya.D circulation channels.

In numerous corners of the world, Win32/Diskcoder.Petya.D expands by jumps and also bounds. Nevertheless, the ransom notes and techniques of obtaining the ransom money amount might vary depending upon specific regional (local) settings. The ransom money notes and methods of extorting the ransom amount might differ depending on specific neighborhood (regional) setups.

Ransomware injection

For example:

    Faulty informs concerning unlicensed software program.

    In specific locations, the Trojans commonly wrongfully report having detected some unlicensed applications enabled on the target’s tool. The alert after that requires the customer to pay the ransom money.

    Faulty statements regarding unlawful content.

    In nations where software program piracy is much less popular, this approach is not as efficient for the cyber fraudulences. Additionally, the Win32/Diskcoder.Petya.D popup alert might incorrectly claim to be deriving from a law enforcement organization and also will certainly report having situated child pornography or other illegal data on the tool.

    Win32/Diskcoder.Petya.D popup alert may falsely assert to be obtaining from a legislation enforcement establishment as well as will report having situated youngster pornography or other unlawful information on the gadget. The alert will similarly have a requirement for the user to pay the ransom.

Technical details

File Info:

crc32: F7A041F0
md5: 285d228b6bfeb5126dcdcc960ef9e479
name: 285D228B6BFEB5126DCDCC960EF9E479.mlw
sha1: 406c77e8816f85aeff8329d51e638ceb017222e4
sha256: 6b3156030d9b0c90089946a6fa09186c20b748273e7a7ee2ea3dfbc8c8b9db0f
sha512: 5bd43a687a569e6bf7af2e97dbf20ac95d14e81fef7da03fe6dceebfb0d640c09da48518f3810c2d490721dbd4d78a6c08a310e7c0d7af58a9482cf40010731f
ssdeep: 3072:DPfQjrk0CbHwg9YUrxtMwbazLuGZ/i3TLL0N/T98eAJkPRsvdaYnNFRqM+nOJnJm:rInk0iwgp8JLu0NtAr9vJFCVVt
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: xa9 Microsoft Corporation. All rights reserved.
InternalName: eventvwr
FileVersion: 6.1.7600.16385 (win7_rtm.090713-1255)
CompanyName: Microsoft Corporation
ProductName: Microsoftxae Windowsxae Operating System
ProductVersion: 6.1.7600.16385
FileDescription: Event Viewer Snapin Launcher
OriginalFilename: eventvwr.exe
Translation: 0x0409 0x04b0

Win32/Diskcoder.Petya.D also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Trojan ( 004ffd581 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.26350
Cynet Malicious (score: 90)
CAT-QuickHeal Ransom.Goldeneye.A4
ALYac Gen:Variant.Ransom.Petya.3
Cylance Unsafe
CrowdStrike win/malicious_confidence_100% (D)
K7GW Trojan ( 004ffd581 )
Cybereason malicious.b6bfeb
Cyren W32/Agent.AQL.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 Win32/Diskcoder.Petya.D
APEX Malicious
Avast Win32:Trojan-gen
ClamAV Win.Ransomware.Goldeneye-6873276-0
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Variant.Ransom.Petya.3
MicroWorld-eScan Gen:Variant.Ransom.Petya.3
Tencent Malware.Win32.Gencirc.10b479b8
Ad-Aware Gen:Variant.Ransom.Petya.3
Sophos ML/PE-A + Troj/Ransom-EON
BitDefenderTheta Gen:NN.ZexaF.34628.wq0@aWrx6qoi
VIPRE Trojan.Win32.Generic!BT
Emsisoft Gen:Variant.Ransom.Petya.3 (B)
SentinelOne Static AI – Suspicious PE
Jiangmin Trojan.Petr.f
Avira HEUR/AGEN.1120121
Microsoft Ransom:Win32/Petya
Arcabit Trojan.Ransom.Petya.3
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Gen:Variant.Ransom.Petya.3
AhnLab-V3 Trojan/Win32.Petr.C1713110
Acronis suspicious
McAfee Artemis!285D228B6BFE
MAX malware (ai score=80)
VBA32 BScope.Trojan.MTA
Panda Trj/Genetic.gen
TrendMicro-HouseCall HT_DISKCODER_GA31038C.UVPM
Rising Ransom.Petya!8.48D7 (CLOUD)
Ikarus Trojan.Win32.Diskcoder
Fortinet W32/Generic.AC.3B06F9!tr
AVG Win32:Trojan-gen
Qihoo-360 HEUR/QVM10.1.D2CA.Malware.Gen

How to remove Win32/Diskcoder.Petya.D 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.

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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.

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Press “Install” button.

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Once installed, Anti-Malware will automatically run.

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Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your system for Win32/Diskcoder.Petya.D 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/Diskcoder.Petya.D 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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