Trojan-Ransom.Win32.Cryptor.dj

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

What is Trojan-Ransom.Win32.Cryptor.dj infection?

In this short article you will discover concerning the definition of Trojan-Ransom.Win32.Cryptor.dj and its negative impact on your computer system. Such ransomware are a type of malware that is clarified by on the internet fraudulences to require paying the ransom by a target.

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In the majority of the instances, Trojan-Ransom.Win32.Cryptor.dj ransomware will certainly advise its targets to launch funds transfer for the objective of counteracting the amendments that the Trojan infection has actually presented to the sufferer’s tool.

Trojan-Ransom.Win32.Cryptor.dj Summary

These modifications 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.
  • 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.
  • 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.

  • 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.
  • Performs some HTTP requests;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Executed a process and injected code into it, probably while unpacking;
  • 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;
  • Collects information to fingerprint the system. There are behavioral human characteristics that can be used to digitally identify a person to grant access to systems, devices, or data. Unlike passwords and verification codes, fingerprints are fundamental parts of user’s identities. Among the threats blocked on biometric data processing and storage systems is spyware, the malware used in phishing attacks (mostly spyware downloaders and droppers), ransomware, and Banking Trojans as posing the greatest danger.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents located on the victim’s disk drive — so the sufferer can no more make use of the information;
  • Preventing normal accessibility to the victim’s workstation;
Similar behavior
Related domains
edgedl.me.gvt1.comRansom.Onion.A

Trojan-Ransom.Win32.Cryptor.dj

The most regular channels whereby Trojan-Ransom.Win32.Cryptor.dj Ransomware Trojans are infused are:

  • By ways of phishing e-mails;
  • As an effect of customer winding up on a resource that holds a destructive software application;

As soon as the Trojan is efficiently injected, it will certainly either cipher the information on the sufferer’s computer or stop the device from functioning in an appropriate manner – while likewise putting a ransom note that mentions the requirement for the sufferers to effect the payment for the function of decrypting the papers or recovering the documents system back to the first problem. In many instances, the ransom money note will show up when the client reboots the COMPUTER after the system has already been harmed.

Trojan-Ransom.Win32.Cryptor.dj circulation channels.

In numerous edges of the globe, Trojan-Ransom.Win32.Cryptor.dj expands by jumps and bounds. However, the ransom notes as well as methods of obtaining the ransom money amount may vary relying on certain neighborhood (regional) settings. The ransom notes and methods of obtaining the ransom money quantity may vary depending on specific regional (local) settings.

Ransomware injection

For example:

    Faulty signals regarding unlicensed software program.

    In specific locations, the Trojans typically wrongfully report having actually identified some unlicensed applications made it possible for on the target’s gadget. The alert after that demands the customer to pay the ransom money.

    Faulty declarations regarding unlawful web content.

    In countries where software application piracy is less prominent, this technique is not as efficient for the cyber fraudulences. Conversely, the Trojan-Ransom.Win32.Cryptor.dj popup alert might wrongly declare to be stemming from a law enforcement organization and will report having located child pornography or various other prohibited data on the tool.

    Trojan-Ransom.Win32.Cryptor.dj popup alert might falsely declare to be deriving from a law enforcement organization and also will report having situated kid pornography or other prohibited data on the gadget. The alert will likewise consist of a demand for the user to pay the ransom money.

Technical details

File Info:

crc32: 9FE82891
md5: c89ec0e25b82fa7dc745f2af304f7570
name: C89EC0E25B82FA7DC745F2AF304F7570.mlw
sha1: 343c8152abac7a9df7f99bf4ac41663adb9faa70
sha256: 4494db9fe21c1079e5b2d394d62097be1bf6501ce0cddccef99564e2b551da3f
sha512: 1d5893b6d656deb96d8a97d7c505a0751825b610f3aa35da6905c8306c68732205cd2cf4e5041ccd0af0149ca697ec5fde3df5d6742fdc6b6b7d948d8c40646f
ssdeep: 12288:hbd3HwFrp0Czrc3/m8jG9+reazRO70oH5eOk+hlud4OABYTEnimUcjw6T91Jv6nb:hbd3Hwhp0Gc3/m8y8zohlu9AiEicQbf
type: PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive

Version Info:

0: [No Data]

Trojan-Ransom.Win32.Cryptor.dj also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 004dcfc21 )
DrWebTrojan.Encoder.4356
CynetMalicious (score: 99)
CAT-QuickHealRansom.Onion.A
ALYacTrojan.GenericKD.12513907
CylanceUnsafe
SangforTrojan.Win32.Dynamer.8
CrowdStrikewin/malicious_confidence_100% (W)
AlibabaRansom:Win32/Cryptor.ca44cb50
K7GWTrojan ( 004dcfc21 )
Cybereasonmalicious.25b82f
SymantecPacked.NSISPacker!g6
ESET-NOD32Win32/Filecoder.CTBLocker.A
APEXMalicious
AvastWin32:Malware-gen
KasperskyTrojan-Ransom.Win32.Cryptor.dj
BitDefenderTrojan.GenericKD.12513907
NANO-AntivirusTrojan.Win32.Encoder.eedxvl
ViRobotTrojan.Win32.S.CTB-Locker.782541
MicroWorld-eScanTrojan.GenericKD.12513907
TencentWin32.Trojan.Cryptor.Szvi
Ad-AwareTrojan.GenericKD.12513907
SophosMal/Generic-R + Mal/Cerber-Z
ComodoMalware@#1jhhnjd87zosp
BitDefenderThetaGen:NN.ZedlaF.34692.bC8@auLlDhd
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom_CRYPCTB.AF
McAfee-GW-EditionBehavesLike.Win32.Dropper.bc
FireEyeGeneric.mg.c89ec0e25b82fa7d
EmsisoftTrojan.GenericKD.12513907 (B)
SentinelOneStatic AI – Suspicious PE
WebrootTrojan.Dropper.Gen
AviraTR/Dropper.Gen
Antiy-AVLTrojan/Generic.ASMalwS.28B1B5B
KingsoftWin32.Troj.Generic_a.a.(kcloud)
MicrosoftRansom:Win32/Critroni
ZoneAlarmTrojan-Ransom.Win32.Cryptor.dj
GDataTrojan.GenericKD.12513907
TACHYONRansom/W32.Cryptor.782541
AhnLab-V3Trojan/Win32.CTBLocker.R183951
McAfeeRDN/Ransom.an
MAXmalware (ai score=100)
VBA32Trojan.Nisloder
MalwarebytesRansom.CTBLocker
PandaTrj/CI.A
TrendMicro-HouseCallRansom_CRYPCTB.AF
RisingBackdoor.Nuwar!8.95C (TFE:5:jZg71OHSPMJ)
YandexTrojan.GenAsa!BKRcJEcmJcE
FortinetW32/Injector.DAJC!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml

How to remove Trojan-Ransom.Win32.Cryptor.dj 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 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 Trojan-Ransom.Win32.Cryptor.dj 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 Trojan-Ransom.Win32.Cryptor.dj 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/comparison

About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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