Ransom:MSIL/NefiCrypt.PI!MSR

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

What is Ransom:MSIL/NefiCrypt.PI!MSR infection?

In this post you will discover concerning the definition of Ransom:MSIL/NefiCrypt.PI!MSR and also its adverse impact on your computer. Such ransomware are a kind of malware that is specified by on the internet fraudulences to require paying the ransom by a victim.

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In the majority of the situations, Ransom:MSIL/NefiCrypt.PI!MSR infection will certainly advise its victims to initiate funds transfer for the purpose of neutralizing the amendments that the Trojan infection has actually introduced to the victim’s gadget.

Ransom:MSIL/NefiCrypt.PI!MSR Summary

These adjustments can be as adheres to:

  • 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.
  • Attempts to connect to a dead IP:Port (2 unique times);
  • 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.
  • Network activity contains generic phishing indicators indicative of a website clone.;
  • 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.
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic;
  • 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.
  • Uses Windows utilities for basic functionality;
  • Sniffs keystrokes;
  • 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
  • Exhibits possible ransomware file modification behavior;
  • Writes a potential ransom message to disk;
  • 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.
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Ciphering the records situated on the victim’s hard disk drive — so the victim can no more make use of the information;
  • Preventing regular accessibility to the victim’s workstation;
Similar behavior
Related domains
z.whorecord.xyzRansom.Neficrypt
a.tomx.xyzRansom.Neficrypt
www.bing.comRansom.Neficrypt
js-perso.ifrance.comRansom.Neficrypt

Ransom:MSIL/NefiCrypt.PI!MSR

One of the most common channels where Ransom:MSIL/NefiCrypt.PI!MSR Trojans are injected are:

  • By ways of phishing emails;
  • As a repercussion of user ending up on a resource that hosts a harmful software application;

As soon as the Trojan is successfully infused, it will certainly either cipher the data on the target’s PC or stop the device from working in a proper manner – while additionally positioning a ransom note that discusses the need for the sufferers to effect the settlement for the objective of decrypting the documents or recovering the data system back to the first problem. In most circumstances, the ransom money note will certainly come up when the client reboots the PC after the system has actually currently been harmed.

Ransom:MSIL/NefiCrypt.PI!MSR circulation channels.

In different corners of the globe, Ransom:MSIL/NefiCrypt.PI!MSR grows by leaps and also bounds. Nevertheless, the ransom notes and also tricks of extorting the ransom money quantity may vary depending upon specific local (local) settings. The ransom notes as well as techniques of extorting the ransom amount might vary depending on particular neighborhood (regional) setups.

Ransomware injection

For instance:

    Faulty informs regarding unlicensed software application.

    In certain locations, the Trojans often wrongfully report having found some unlicensed applications allowed on the victim’s gadget. The sharp after that requires the customer to pay the ransom money.

    Faulty declarations regarding illegal content.

    In countries where software piracy is less popular, this approach is not as reliable for the cyber frauds. Alternatively, the Ransom:MSIL/NefiCrypt.PI!MSR popup alert may falsely claim to be deriving from a police organization and also will report having located youngster porn or various other illegal information on the gadget.

    Ransom:MSIL/NefiCrypt.PI!MSR popup alert might incorrectly claim to be obtaining from a law enforcement institution and also will certainly report having located kid porn or various other prohibited data on the gadget. The alert will in a similar way include a demand for the customer to pay the ransom.

Technical details

File Info:

crc32: B877116B
md5: 80cfda61942eb4e71f286297a1158f48
name: tmpak0bdl0a
sha1: 6c9ae388fa5d723a458de0d2bea3eb63bc921af7
sha256: 52e25bdd600695cfed0d4ee3aca4f121bfebf0de889593e6ba06282845cf39ea
sha512: 5e02f22c9c367d2111d4b1a6000691286da04c52aae9fd7b716b0911e31256aa679ac227d24443bfd75450b1dd7f9c20eae0593d1fc42324b9281852e20fcbe7
ssdeep: 98304:nGez7RmfH4MN2verjtZr4T+OjuSKSPxTb9vW12U8yHtII:nLUPT0vmtZrwjjg8xTb9vXyHtI
type: PE32 executable (GUI) Intel 80386, for MS Windows, MS CAB-Installer self-extracting archive

Version Info:

LegalCopyright: xa9 Microsoft Corporation. All rights reserved.
InternalName: Wextract
FileVersion: 8.00.7600.16385 (win7_rtm.090713-1255)
CompanyName: Microsoft Corporation
ProductName: Windowsxae Internet Explorer
ProductVersion: 8.00.7600.16385
FileDescription: Win32 Cabinet Self-Extractor
OriginalFilename: WEXTRACT.EXE .MUI
Translation: 0x0409 0x04b0

Ransom:MSIL/NefiCrypt.PI!MSR also known as:

GridinSoftTrojan.Ransom.Gen
MicroWorld-eScanTrojan.GenericKD.42972963
CAT-QuickHealRansom.Neficrypt
ALYacTrojan.Ransom.Nefilim
CylanceUnsafe
VIPRETrojan.Win32.Generic!BT
SangforMalware
K7AntiVirusRiskware ( 0040eff71 )
AlibabaTrojan:Win32/Zudochka.11f00c5f
K7GWRiskware ( 0040eff71 )
Cybereasonmalicious.8fa5d7
ArcabitTrojan.Generic.D28FB723
TrendMicroRansom.Win32.NEFILIM.SM
CyrenW32/Trojan.MOCF-5282
SymantecDownloader
ESET-NOD32Win32/Filecoder.Nemty.D
APEXMalicious
Paloaltogeneric.ml
GDataWin32.Trojan-Ransom.Nefilim.A
KasperskyTrojan.Win32.Zudochka.eii
BitDefenderTrojan.GenericKD.42972963
NANO-AntivirusTrojan.Win32.JSWorm.hfiujg
AvastWin32:Malware-gen
Ad-AwareTrojan.GenericKD.42972963
SophosTroj/Nemty-Q
F-SecureTrojan.TR/Redcap.bwoyk
DrWebTrojan.Encoder.31246
ZillyaTrojan.Zudochka.Win32.378
McAfee-GW-EditionRansomware-GYL!95A2DD9A94B8
MaxSecureTrojan.Malware.83499987.susgen
Trapminemalicious.high.ml.score
FireEyeTrojan.GenericKD.42972963
EmsisoftTrojan.GenericKD.42972963 (B)
IkarusTrojan-Ransom.Nemty
F-ProtW32/Jsworm.A
JiangminTrojan.Zudochka.fc
WebrootW32.Gen.BT
AviraTR/Redcap.bwoyk
Antiy-AVLTrojan/Win32.Zudochka
MicrosoftRansom:MSIL/NefiCrypt.PI!MSR
Endgamemalicious (high confidence)
ViRobotTrojan.Win32.S.Nefilim.4432896
ZoneAlarmTrojan.Win32.Zudochka.eii
CynetMalicious (score: 85)
AhnLab-V3Trojan/Win32.FileCoder.C4089135
McAfeeArtemis!80CFDA61942E
MAXmalware (ai score=88)
MalwarebytesRansom.Nefilim
TrendMicro-HouseCallRansom.Win32.NEFILIM.SM
TencentWin32.Trojan.Zudochka.Eadr
YandexTrojan.Filecoder!H/GdSBVaXLk
SentinelOneDFI – Suspicious SFX
eGambitUnsafe.AI_Score_99%
FortinetW32/Nemty.D!tr.ransom
AVGWin32:Malware-gen
PandaTrj/CI.A
CrowdStrikewin/malicious_confidence_60% (W)
Qihoo-360Generic/HEUR/QVM06.3.7903.Malware.Gen

How to remove Ransom:MSIL/NefiCrypt.PI!MSR 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

The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes.2.

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:MSIL/NefiCrypt.PI!MSR 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:MSIL/NefiCrypt.PI!MSR 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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