Win32/Napolar.A

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

What is Win32/Napolar.A infection?

In this post you will discover about the meaning of Win32/Napolar.A as well as its negative influence on your computer system. Such ransomware are a type of malware that is elaborated by on the internet scams to demand paying the ransom by a victim.

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In the majority of the instances, Win32/Napolar.A infection will advise its targets to start funds transfer for the objective of reducing the effects of the changes that the Trojan infection has actually presented to the sufferer’s tool.

Win32/Napolar.A Summary

These modifications can be as follows:

  • Executable code extraction;
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • Creates RWX memory;
  • Mimics the system’s user agent string for its own requests;
  • Reads data out of its own binary image;
  • Drops a binary and executes it;
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic;
  • Performs some HTTP requests;
  • Executed a process and injected code into it, probably while unpacking;
  • Tries to unhook or modify Windows functions monitored by Cuckoo;
  • A system process is generating network traffic likely as a result of process injection;
  • Installs itself for autorun at Windows startup;
  • A process sent information about the computer to a remote location.;
  • Creates a copy of itself;
  • Ciphering the files located on the target’s hard disk drive — so the target can no more utilize the information;
  • Preventing regular accessibility to the target’s workstation;

Related domains:

favoured.in Gen:Variant.Ransom.Samas.9

Win32/Napolar.A

The most normal channels where Win32/Napolar.A Ransomware Trojans are infused are:

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

As soon as the Trojan is successfully injected, it will either cipher the data on the sufferer’s computer or stop the tool from functioning in a correct fashion – while additionally placing a ransom note that discusses the requirement for the victims to effect the repayment for the function of decrypting the papers or bring back the file system back to the initial condition. In most circumstances, the ransom money note will turn up when the client reboots the PC after the system has actually already been harmed.

Win32/Napolar.A circulation channels.

In various corners of the world, Win32/Napolar.A grows by leaps as well as bounds. Nevertheless, the ransom notes and methods of extorting the ransom money quantity might differ depending upon certain local (local) setups. The ransom notes and also methods of extorting the ransom money quantity might differ depending on specific local (local) settings.

Ransomware injection

For instance:

    Faulty informs about unlicensed software.

    In specific locations, the Trojans frequently wrongfully report having discovered some unlicensed applications made it possible for on the victim’s gadget. The sharp after that requires the user to pay the ransom.

    Faulty statements concerning illegal web content.

    In nations where software program piracy is less popular, this approach is not as reliable for the cyber frauds. Additionally, the Win32/Napolar.A popup alert may falsely assert to be stemming from a law enforcement institution and also will report having located kid pornography or other illegal information on the gadget.

    Win32/Napolar.A popup alert may falsely claim to be deriving from a legislation enforcement institution and also will report having located kid pornography or various other prohibited information on the device. The alert will similarly contain a requirement for the individual to pay the ransom money.

Technical details

File Info:

crc32: 6D6F423C
md5: e8e4a20a78fb089456e4f06cbbb9bcf5
name: E8E4A20A78FB089456E4F06CBBB9BCF5.mlw
sha1: 88797faa9d09f86d6502f8989acc94ccb57a08bd
sha256: 445999001ebde216e8e465d59cd35867f9a84e181e80986baeffc56709003503
sha512: a1a05737bd40a7422c2204c6404e8232c66b969d74c453a623402ebbe1e907a862ed96708c1a8c89e7f5adf2cc640fcd4cabcfd44025f8b6af67cc08b596728a
ssdeep: 6144:1SxmNPIU8+mePL2rebsodQ6Jm9UhaHVqMXYDYVbVPIqh1j7moysMUR1Ib/4:
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: x5p2nvh771dhklo9
Assembly Version: 7.5.0.3
InternalName: Adobe Flash Player 11.2 Installer.exe
FileVersion: 7.5.0.3
CompanyName: db9ooc8xrjw0xc6r
LegalTrademarks: 1qnbkuj3am89wpo5
Comments: y4tklu3kck71paq2
ProductName: n5mi56wnlkik04jb
ProductVersion: 7.5.0.3
FileDescription: vlw8pv1o9yc5b6q7
OriginalFilename: Adobe Flash Player 11.2 Installer.exe

Win32/Napolar.A also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 700000121 )
Lionic Trojan.Win32.Napolar.m!c
Elastic malicious (high confidence)
DrWeb Trojan.AVKill.24940
Cynet Malicious (score: 99)
ALYac Gen:Variant.Ransom.Samas.9
Cylance Unsafe
Zillya Backdoor.Napolar.Win32.2
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Trojan:MSIL/Predator.a3713d2c
K7GW Trojan ( 700000121 )
Cybereason malicious.a78fb0
Symantec ML.Attribute.HighConfidence
ESET-NOD32 Win32/Napolar.A
APEX Malicious
Avast FileRepMetagen [DRP]
Kaspersky HEUR:Trojan.MSIL.Fsysna.gen
BitDefender Gen:Variant.Ransom.Samas.9
NANO-Antivirus Trojan.Win32.AVKill.dcnecf
ViRobot Trojan.Win32.S.Agent.593920.P
MicroWorld-eScan Gen:Variant.Ransom.Samas.9
Tencent Win32.Trojan.Generic.Anpk
Ad-Aware Gen:Variant.Ransom.Samas.9
Sophos Mal/Generic-R + Troj/Msil-OO
Comodo Malware@#2nurunh2afrso
BitDefenderTheta Gen:NN.ZemsilF.34050.Km0@aOzNX9f
VIPRE Trojan.Win32.Generic!BT
TrendMicro TROJ_VARNEP.UA14
McAfee-GW-Edition BehavesLike.Win32.Generic.hz
FireEye Generic.mg.e8e4a20a78fb0894
Emsisoft Gen:Variant.Ransom.Samas.9 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Backdoor/Napolar.m
Webroot W32.Malware.Gen
Avira TR/ATRAPS.Gen
eGambit Generic.Backdoor
Antiy-AVL Trojan/Generic.ASMalwS.6FEF56
Kingsoft Win32.Hack.Napolar.fb.(kcloud)
Microsoft Trojan:MSIL/Predator.BA!MTB
GData Gen:Variant.Ransom.Samas.9
TACHYON Backdoor/W32.DN-Napolar.593920
AhnLab-V3 Trojan/Win32.Agent.C254803
McAfee GenericRXGG-DC!E8E4A20A78FB
MAX malware (ai score=100)
VBA32 Backdoor.Napolar
Malwarebytes Trojan.Crypt.MSIL
Panda Generic Malware
TrendMicro-HouseCall TROJ_VARNEP.UA14
Ikarus Backdoor.Win32.DarkKomet
MaxSecure Trojan.Malware.300983.susgen
Fortinet MSIL/Kryptik.UFS!tr
AVG FileRepMetagen [DRP]
Paloalto generic.ml
Qihoo-360 Generic/TrojanSpy.Fsysna.HwMAEpsA

How to remove Win32/Napolar.A 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 Win32/Napolar.A 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 Win32/Napolar.A 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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