Ransom.NoCry

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

What is Ransom.NoCry infection?

In this post you will discover regarding the definition of Ransom.NoCry as well as its unfavorable influence on your computer system. Such ransomware are a type of malware that is clarified by on the internet fraudulences to require paying the ransom money by a target.

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Most of the situations, Ransom.NoCry virus will certainly advise its targets to launch funds transfer for the objective of neutralizing the amendments that the Trojan infection has presented to the victim’s gadget.

Ransom.NoCry 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.
  • 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.;
  • At least one IP Address, Domain, or File Name was found in a crypto call;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Attempts to modify desktop wallpaper;
  • 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
  • Checks the version of Bios, possibly for anti-virtualization;
  • Checks the CPU name from registry, possibly for anti-virtualization;
  • Creates a copy of itself;
  • Attempts to create or modify system certificates;
  • Appends a known CryLocker ransomware file extension to files that have been encrypted;
  • 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.
  • Ciphering the documents located on the target’s hard disk — so the target can no more make use of the data;
  • Preventing routine accessibility to the sufferer’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

Ransom.NoCry

The most common channels where Ransom.NoCry Trojans are infused are:

  • By ways of phishing e-mails;
  • As a consequence of individual winding up on a source that holds a malicious software program;

As soon as the Trojan is efficiently injected, it will either cipher the data on the sufferer’s computer or stop the gadget from working in an appropriate fashion – while additionally placing a ransom money note that discusses the demand for the victims to effect the payment for the function of decrypting the files or bring back the data system back to the preliminary condition. In many circumstances, the ransom money note will turn up when the customer reboots the COMPUTER after the system has currently been harmed.

Ransom.NoCry distribution networks.

In different edges of the globe, Ransom.NoCry expands by leaps and bounds. Nevertheless, the ransom money notes and also tricks of extorting the ransom amount might differ depending on certain regional (local) setups. The ransom notes as well as methods of extorting the ransom amount may differ depending on particular regional (regional) setups.

Ransomware injection

For instance:

    Faulty informs regarding unlicensed software program.

    In specific areas, the Trojans commonly wrongfully report having discovered some unlicensed applications allowed on the sufferer’s tool. The alert then demands the customer to pay the ransom.

    Faulty declarations concerning unlawful content.

    In nations where software application piracy is less preferred, this technique is not as effective for the cyber scams. Additionally, the Ransom.NoCry popup alert may falsely declare to be deriving from a police establishment and also will certainly report having situated child pornography or other illegal information on the device.

    Ransom.NoCry popup alert may wrongly assert to be obtaining from a regulation enforcement institution as well as will certainly report having located kid porn or other prohibited information on the tool. The alert will in a similar way include a need for the user to pay the ransom money.

Technical details

File Info:

crc32: 56F6462D
md5: 12bd1294928133c2493a8a5fdb03d383
name: 12BD1294928133C2493A8A5FDB03D383.mlw
sha1: 919c1fc53474dd59543bb84cb640e290fc39597a
sha256: 2b6d3d2940c92620819bb2e2e40d01488a0dabdf7aee70437e3b65d0587eeb54
sha512: 278840c00db33780ba5bde053f98cfcddbf2d8886bd58d2845d4e141276263ccd43f9c689428c886d39d65507e0c7ee386e815b97b95e856f8f09df9ec5acd6b
ssdeep: 3072:Qk8bx9YtlSHPOpRZkbISJh+gRo2o41q8lh8Fuz+WSMzbrsfyb50E3QBSfUqK1K3:iK+3RJq8wFu1Cyd0E3QMfhqK3cx
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

0: [No Data]

Ransom.NoCry also known as:

GridinSoftTrojan.Ransom.Gen
Elasticmalicious (high confidence)
DrWebTrojan.MulDrop16.31173
CynetMalicious (score: 100)
CAT-QuickHealTrojan.YakbeexMSIL.ZZ4
ALYacGen:Heur.Ransom.REntS.Gen.1
CylanceUnsafe
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_90% (D)
Cybereasonmalicious.492813
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of MSIL/Filecoder.AFL
APEXMalicious
AvastWin32:MalwareX-gen [Trj]
KasperskyHEUR:Trojan-Ransom.Win32.Generic
BitDefenderGen:Heur.Ransom.REntS.Gen.1
MicroWorld-eScanGen:Heur.Ransom.REntS.Gen.1
Ad-AwareGen:Heur.Ransom.REntS.Gen.1
SophosML/PE-A
BitDefenderThetaGen:NN.ZemsilF.34678.nmW@a4!6dHb
McAfee-GW-EditionBehavesLike.Win32.Generic.dc
FireEyeGeneric.mg.12bd1294928133c2
EmsisoftGen:Heur.Ransom.REntS.Gen.1 (B)
SentinelOneStatic AI – Malicious PE
AviraTR/Dropper.Gen
eGambitUnsafe.AI_Score_99%
MicrosoftRansom:MSIL/NoCry.AS!MTB
ArcabitTrojan.Ransom.REntS.Gen.1
ZoneAlarmHEUR:Trojan-Ransom.Win32.Generic
GDataGen:Heur.Ransom.REntS.Gen.1
AhnLab-V3Trojan/Win32.Dynamer.C4381802
Acronissuspicious
MAXmalware (ai score=81)
MalwarebytesRansom.NoCry
PandaTrj/GdSda.A
RisingRansom.Generic!8.E315 (TFE:dGZlOgxmW0iYB+9YBw)
FortinetMSIL/Filecoder.TA!tr
AVGWin32:MalwareX-gen [Trj]
Qihoo-360HEUR/QVM03.0.B2DB.Malware.Gen

How to remove Ransom.NoCry 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 Ransom.NoCry 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 Ransom.NoCry 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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