Troj/Nemty-N

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

What is Troj/Nemty-N infection?

In this short article you will certainly find about the definition of Troj/Nemty-N and its adverse impact on your computer system. Such ransomware are a form of malware that is elaborated by on the internet fraudulences to require paying the ransom by a victim.

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In the majority of the instances, Troj/Nemty-N infection will certainly advise its targets to initiate funds move for the objective of reducing the effects of the modifications that the Trojan infection has actually introduced to the target’s tool.

Troj/Nemty-N Summary

These adjustments can be as adheres to:

  • 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.;
  • Attempts to execute a powershell command with suspicious parameter/s;
  • A process created a hidden window;
  • Executed a very long command line or script command which may be indicative of chained commands or obfuscation;
  • A scripting utility was executed;
  • Uses Windows utilities for basic functionality;
  • Attempts to delete volume shadow copies;
  • Modifies boot configuration settings;
  • Network activity contains more than one unique useragent.;
  • Writes a potential ransom message to disk;
  • Clears Windows events or logs;
  • Attempts to interact with an Alternate Data Stream (ADS);
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the documents found on the target’s disk drive — so the target can no longer use the information;
  • Preventing routine access to the sufferer’s workstation;
Similar behavior
Related domains
www.myexternalip.comGeneric.Ransom.Nemty.99A1EB30
nemty10.hkGeneric.Ransom.Nemty.99A1EB30

Troj/Nemty-N

The most typical channels whereby Troj/Nemty-N are infused are:

  • By ways of phishing emails;
  • As a consequence of customer winding up on a source that organizes a harmful software application;

As quickly as the Trojan is efficiently infused, it will certainly either cipher the data on the target’s PC or protect against the device from functioning in a proper way – while likewise putting a ransom note that discusses the demand for the victims to impact the payment for the objective of decrypting the documents or bring back the data system back to the preliminary problem. In most instances, the ransom note will certainly turn up when the client restarts the PC after the system has actually currently been damaged.

Troj/Nemty-N circulation channels.

In various corners of the globe, Troj/Nemty-N expands by leaps as well as bounds. However, the ransom notes as well as methods of extorting the ransom money quantity may vary relying on certain regional (local) setups. The ransom notes and also techniques of extorting the ransom quantity may differ depending on particular regional (regional) settings.

Ransomware injection

For example:

    Faulty alerts about unlicensed software.

    In particular areas, the Trojans commonly wrongfully report having identified some unlicensed applications enabled on the target’s tool. The alert after that requires the individual to pay the ransom money.

    Faulty declarations concerning unlawful material.

    In countries where software program piracy is much less popular, this technique is not as efficient for the cyber frauds. Additionally, the Troj/Nemty-N popup alert might falsely declare to be originating from a police institution and also will report having located kid porn or other prohibited data on the device.

    Troj/Nemty-N popup alert might incorrectly assert to be obtaining from a regulation enforcement institution as well as will report having situated child pornography or various other prohibited information on the device. The alert will similarly have a need for the individual to pay the ransom money.

Technical details

File Info:

crc32: D86D9507
md5: 542bab6a93e8fbd7141975db19a59853
name: jap.exe
sha1: c9d91bee8d4ef05234395a403e4d48868dc0615a
sha256: 8ee3fcde25866ac62159f0ff3ac1482f3d25de140ec434adbbd5d44396832781
sha512: 9b3b43b3306a12b21c1a532896cb63011cdfcd9294f1927a6a539fbedfafc3063be000f4718c66910a6460de1174f160799f02441f57cde9ff567ffcbb2f336b
ssdeep: 1536:RStOoo6j+5UTeLNSTQjn0WLg4xI1kXcteRYVUgQxSOrjpBrO:RKHp+5UiZSqzguRcs4UgQxSOPLrO
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Troj/Nemty-N also known as:

GridinSoftTrojan.Ransom.Gen
DrWebTrojan.Encoder.30832
MicroWorld-eScanGeneric.Ransom.Nemty.99A1EB30
CAT-QuickHealRansom.Nemty
McAfeeRansom-Nemty!542BAB6A93E8
CylanceUnsafe
VIPRETrojan.Win32.Generic!BT
SangforMalware
CrowdStrikewin/malicious_confidence_100% (W)
BitDefenderGeneric.Ransom.Nemty.99A1EB30
K7GWTrojan ( 00556c621 )
K7AntiVirusTrojan ( 00556c621 )
ArcabitGeneric.Ransom.Nemty.99A1EB30
Invinceaheuristic
BitDefenderThetaAI:Packer.8D8C4BDE1E
CyrenW32/Ransom.QNYV-5219
SymantecDownloader
ESET-NOD32a variant of Win32/Filecoder.Nemty.A
APEXMalicious
Paloaltogeneric.ml
KasperskyHEUR:Trojan.Win32.Zenpak.vho
AlibabaRansom:Win32/Genasom.ali1000102
NANO-AntivirusTrojan.Win32.Encoder.gxsssr
ViRobotTrojan.Win32.Z.Ransom.94208.AX
RisingRansom.Nemty!1.BD61 (CLOUD)
Endgamemalicious (high confidence)
EmsisoftGeneric.Ransom.Nemty.99A1EB30 (B)
ComodoMalware@#24dolnhz8bbp4
F-SecureTrojan.TR/Downloader.Gen
ZillyaTrojan.Filecoder.Win32.12172
TrendMicroRansom.Win32.NEMTY.M
McAfee-GW-EditionBehavesLike.Win32.TrojanShifu.nh
FortinetW32/Filecoder_Nemty.A!tr
Trapminemalicious.moderate.ml.score
FireEyeGeneric.mg.542bab6a93e8fbd7
SophosTroj/Nemty-N
SentinelOneDFI – Malicious PE
JiangminTrojan.Zenpak.axc
WebrootW32.Trojan.TR.Downloader
AviraTR/Downloader.Gen
MAXmalware (ai score=82)
MicrosoftRansom:Win32/Nemty.D
ZoneAlarmHEUR:Trojan.Win32.Zenpak.vho
AhnLab-V3Trojan/Win32.Nemty.C3974898
Acronissuspicious
VBA32BScope.Trojan.Encoder
ALYacTrojan.Ransom.Nemty
Ad-AwareGeneric.Ransom.Nemty.99A1EB30
PandaTrj/GdSda.A
TrendMicro-HouseCallRansom.Win32.NEMTY.M
TencentWin32.Trojan.Filecoder.Stap
IkarusTrojan-Ransom.Nemty
GDataGeneric.Ransom.Nemty.99A1EB30
MaxSecureTrojan.Malware.74773626.susgen
AVGWin32:RansomX-gen [Ransom]
Cybereasonmalicious.a93e8f
AvastWin32:RansomX-gen [Ransom]
Qihoo-360Win32/Trojan.0ea

How to remove Troj/Nemty-N 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

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 Troj/Nemty-N 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 Troj/Nemty-N 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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