Written by Robert Bailey

What is Win32/PSW.Delf.CPR infection?

In this article you will certainly locate about the meaning of Win32/PSW.Delf.CPR as well as its negative influence on your computer. Such ransomware are a kind of malware that is clarified by on-line frauds to demand paying the ransom money by a victim.

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Most of the situations, Win32/PSW.Delf.CPR virus will instruct its victims to launch funds move for the function of neutralizing the modifications that the Trojan infection has introduced to the sufferer’s gadget.

Win32/PSW.Delf.CPR Summary

These alterations can be as complies with:

  • Injection (inter-process);
  • Injection (Process Hollowing);
  • 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.
  • Expresses interest in specific running processes;
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • Executed a process and injected code into it, probably while unpacking;
  • A process was set to shut the system down when terminated;
  • 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;
  • 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 target can no longer make use of the information;
  • Preventing routine 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.
Similar behavior
Related domains Trojan-Ransom.Win32.Blocker.amih Trojan-Ransom.Win32.Blocker.amih


One of the most typical networks whereby Win32/PSW.Delf.CPR Ransomware are infused are:

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

As quickly as the Trojan is successfully injected, it will certainly either cipher the information on the target’s PC or prevent the device from operating in a correct way – while also positioning a ransom money note that states the demand for the targets to effect the settlement for the objective of decrypting the records or restoring the documents system back to the first condition. In the majority of circumstances, the ransom money note will turn up when the client reboots the PC after the system has actually currently been harmed.

Win32/PSW.Delf.CPR circulation channels.

In different corners of the globe, Win32/PSW.Delf.CPR expands by leaps and bounds. Nevertheless, the ransom money notes as well as techniques of obtaining the ransom amount may vary depending upon specific regional (regional) setups. The ransom notes as well as techniques of obtaining the ransom quantity may vary depending on particular local (regional) setups.

Ransomware injection

As an example:

    Faulty alerts concerning unlicensed software.

    In certain areas, the Trojans typically wrongfully report having actually detected some unlicensed applications enabled on the sufferer’s tool. The sharp after that demands the user to pay the ransom money.

    Faulty declarations regarding illegal content.

    In countries where software program piracy is much less preferred, this method is not as reliable for the cyber fraudulences. Conversely, the Win32/PSW.Delf.CPR popup alert might wrongly declare to be deriving from a law enforcement organization and will report having located kid pornography or other illegal data on the tool.

    Win32/PSW.Delf.CPR popup alert may incorrectly declare to be deriving from a regulation enforcement establishment and will certainly report having situated youngster porn or various other unlawful data on the gadget. The alert will similarly include a requirement for the user to pay the ransom.

Technical details

File Info:

crc32: DD8B9718
md5: 1c6e0637ac3a35cc74e5d1c60e3f3131
name: 1C6E0637AC3A35CC74E5D1C60E3F3131.mlw
sha1: 02ebb6ae4851402d585dd9ea93c83353d4c1112d
sha256: 9844092230fd7dfb18d1c400a9e5c1f0c0e6921441339ce4990fbc4da2aefa7b
sha512: 09b401f8db9ad8f5d10c76e7ad5e8c353b2b50133d387fa1ca0c79a643c323c0bd146de4600a6842b0fb02ba3c6f84bc2e89bf461c4eb0fe167c7168211a2f33
ssdeep: 24576:uRmJkcoQricOIQxiZY1iaCNvkFT0+M31i3SSFWneblhs:7JZoQrbTFZY1iaCNkFT0Vi34nebzs
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

CompiledScript: AutoIt v3 Script: 3, 3, 8, 1
FileVersion: 3, 3, 8, 1
Translation: 0x0809 0x04b0

Win32/PSW.Delf.CPR also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 700000111 )
Elastic malicious (high confidence)
ALYac Trojan.Autoit.EVM
Zillya Trojan.Delf.Win32.62869
CrowdStrike win/malicious_confidence_90% (D)
BitDefender Trojan.Autoit.EVM
K7GW Trojan ( 700000111 )
Cybereason malicious.7ac3a3
Cyren W32/AutoIt.AQ.gen!Eldorado
Symantec Trojan.Gen.2
APEX Malicious
Cynet Malicious (score: 100)
Kaspersky Trojan-Ransom.Win32.Blocker.amih
NANO-Antivirus Trojan.Win32.Blocker.cjhcue
MicroWorld-eScan Trojan.Autoit.EVM
Tencent Win32.Trojan.Blocker.Dzuk
Ad-Aware Trojan.Autoit.EVM
Sophos Mal/Generic-S
Comodo Malware@#1v74oei53ir0z
DrWeb Trojan.MulDrop4.23677
VIPRE Trojan.Win32.Generic!BT
Emsisoft Trojan.Autoit.EVM (B)
Avira DR/AutoIt.Gen9
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Trojan:Win32/Wacatac.B!ml
Arcabit Trojan.Autoit.EVM
AegisLab Trojan.Win32.Blocker.j!c
ZoneAlarm Trojan-Ransom.Win32.Blocker.amih
GData Trojan.Autoit.EVM
McAfee Artemis!1C6E0637AC3A
MAX malware (ai score=85)
VBA32 Trojan.Autoit.F
Ikarus Trojan-Ransom.Blocker
Fortinet W32/Injector_Autoit.EE!tr
Panda Generic Malware

How to remove Win32/PSW.Delf.CPR 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 Win32/PSW.Delf.CPR 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 Win32/PSW.Delf.CPR you can always ask me in the comments for getting help.

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  1. GridinSoft Anti-Malware Review from HowToFix site:
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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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