Ransom:Win32/Nemreq

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

What is Ransom:Win32/Nemreq infection?

In this post you will discover regarding the interpretation of Ransom:Win32/Nemreq and its adverse influence on your computer system. Such ransomware are a type of malware that is specified by on the internet fraudulences to demand paying the ransom money by a victim.

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In the majority of the cases, Ransom:Win32/Nemreq infection will certainly instruct its victims to launch funds transfer for the objective of neutralizing the modifications that the Trojan infection has presented to the sufferer’s tool.

Ransom:Win32/Nemreq Summary

These adjustments 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.
  • 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.

  • 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 delete volume shadow copies;
  • 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 copy of itself;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the records found on the sufferer’s hard disk — so the victim can no more use the data;
  • 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.
Similar behavior
Related domains
z.whorecord.xyzRansom.Win32.Nemreq.mt
a.tomx.xyzRansom.Win32.Nemreq.mt
opencart.muslim-book.co.ukRansom.Win32.Nemreq.mt

Ransom:Win32/Nemreq

The most typical networks through which Ransom:Win32/Nemreq Ransomware are injected are:

  • By methods of phishing emails;
  • As an effect of user ending up on a resource that organizes a malicious software application;

As quickly as the Trojan is successfully injected, it will certainly either cipher the data on the target’s computer or avoid the tool from operating in an appropriate manner – while also putting a ransom money note that discusses the requirement for the targets to impact the repayment for the objective of decrypting the papers or restoring the documents system back to the first problem. In most instances, the ransom note will certainly show up when the client restarts the COMPUTER after the system has already been damaged.

Ransom:Win32/Nemreq distribution networks.

In various edges of the globe, Ransom:Win32/Nemreq grows by jumps and also bounds. However, the ransom money notes and methods of extorting the ransom amount may differ depending on certain neighborhood (regional) setups. The ransom money notes and methods of obtaining the ransom quantity may differ depending on specific neighborhood (regional) settings.

Ransomware injection

For instance:

    Faulty notifies about unlicensed software.

    In specific areas, the Trojans typically wrongfully report having actually discovered some unlicensed applications made it possible for on the sufferer’s device. The alert after that requires the user to pay the ransom.

    Faulty statements about unlawful material.

    In nations where software program piracy is much less preferred, this method is not as efficient for the cyber scams. Conversely, the Ransom:Win32/Nemreq popup alert might wrongly assert to be stemming from a police establishment as well as will report having situated child pornography or other prohibited information on the gadget.

    Ransom:Win32/Nemreq popup alert may wrongly assert to be acquiring from a law enforcement organization and also will report having located child pornography or other illegal data on the device. The alert will in a similar way contain a demand for the customer to pay the ransom money.

Technical details

File Info:

crc32: DB982F46
md5: 6ee7fafd10f4dc56e85c152f7441b96d
name: 6EE7FAFD10F4DC56E85C152F7441B96D.mlw
sha1: acc50e95867474dcc65427a0dd403d579e9bacae
sha256: 6a510f2629c2b5b10d384a699004a40f992c714346f77119ff97c6ff2d390fd3
sha512: e4fe71605cc88dd624dd6af5724c94022f3187ce738603d8e7bf5fcd4e8a924cd3bdea7204a0d39415b4aabe3cb7f649c098a60c53c7b61387789437cbe99a49
ssdeep: 6144:vRxg1uyW61DdFyBBsF6h7+TiAnRRNYpkiKX:pxg3WG5QwwiGAOSX
type: MS-DOS executable, MZ for MS-DOS

Version Info:

0: [No Data]

Ransom:Win32/Nemreq also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 004f050a1 )
Elasticmalicious (high confidence)
DrWebTrojan.Encoder.3953
CynetMalicious (score: 99)
ALYacTrojan.BrsecmonE.1
CylanceUnsafe
SangforRansom.Win32.Nemreq.mt
CrowdStrikewin/malicious_confidence_100% (W)
AlibabaRansom:Win32/Cryptolocker.b3eb1e71
K7GWTrojan ( 004f050a1 )
Cybereasonmalicious.d10f4d
SymantecRansom.Cerber
ESET-NOD32a variant of Win32/Kryptik.EYFU
APEXMalicious
AvastWin32:Malware-gen
KasperskyTrojan-Ransom.Win32.Cryptolocker.dw
BitDefenderTrojan.BrsecmonE.1
NANO-AntivirusTrojan.Win32.Cryptolocker.euwmih
MicroWorld-eScanTrojan.BrsecmonE.1
TencentWin32.Trojan.Cryptolocker.Wuhr
Ad-AwareTrojan.BrsecmonE.1
SophosMal/Generic-S
ComodoMalware@#vheslzviln9c
BitDefenderThetaGen:NN.ZexaF.34686.nmqaaCpnhoii
VIPRETrojan.Win32.Generic!BT
TrendMicroMal_Cerber-3
McAfee-GW-EditionBehavesLike.Win32.Generic.dc
FireEyeGeneric.mg.6ee7fafd10f4dc56
EmsisoftTrojan.BrsecmonE.1 (B)
SentinelOneStatic AI – Suspicious PE
JiangminTrojan.Cryptolocker.e
AviraHEUR/AGEN.1119286
MicrosoftRansom:Win32/Nemreq
GDataTrojan.BrsecmonE.1
TACHYONRansom/W32.Cryptolocker.217600
McAfeeGeneric.crw
MAXmalware (ai score=100)
VBA32Trojan-Ransom.Cryptolocker
PandaTrj/CI.A
TrendMicro-HouseCallMal_Cerber-3
RisingRansom.Cryptolocker!8.4617 (CLOUD)
YandexTrojan.Cryptolocker!dJJKhLw6E3w
IkarusTrojan.Win32.Crypt
FortinetW32/Cryptolocker.DW!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml

How to remove Ransom:Win32/Nemreq virus?

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.

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:Win32/Nemreq 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 Ransom:Win32/Nemreq 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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