Ransom:Win32/Nasan.B!bit

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

What is Ransom:Win32/Nasan.B!bit infection?

In this article you will locate about the interpretation of Ransom:Win32/Nasan.B!bit and its adverse impact on your computer system. Such ransomware are a type of malware that is specified by online frauds to require paying the ransom money by a target.

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In the majority of the cases, Ransom:Win32/Nasan.B!bit virus will instruct its targets to start funds transfer for the objective of counteracting the changes that the Trojan infection has presented to the victim’s tool.

Ransom:Win32/Nasan.B!bit Summary

These adjustments can be as adheres to:

  • Expresses interest in specific running processes;
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • Detects Sandboxie through the presence of a library;
  • Detects Avast Antivirus through the presence of a library;
  • Detects SunBelt Sandbox through the presence of a library;
  • Detects the presence of Wine emulator via function name;
  • Checks for the presence of known windows from debuggers and forensic tools;
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents located on the sufferer’s hard disk — so the sufferer can no longer utilize the information;
  • Preventing regular access 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.
Similar behavior
Related domains
z.whorecord.xyz W32/Ransom.Satan.A.gen!Eldorado
a.tomx.xyz W32/Ransom.Satan.A.gen!Eldorado

Ransom:Win32/Nasan.B!bit

One of the most regular channels where Ransom:Win32/Nasan.B!bit are infused are:

  • By means of phishing e-mails;
  • As an effect of user ending up on a source that hosts a destructive software;

As soon as the Trojan is effectively injected, it will certainly either cipher the information on the sufferer’s computer or avoid the tool from operating in a correct manner – while also putting a ransom note that states the demand for the victims to effect the settlement for the purpose of decrypting the files or bring back the data system back to the initial condition. In a lot of circumstances, the ransom note will certainly turn up when the client reboots the PC after the system has actually already been damaged.

Ransom:Win32/Nasan.B!bit circulation networks.

In numerous corners of the world, Ransom:Win32/Nasan.B!bit expands by leaps as well as bounds. However, the ransom money notes as well as techniques of extorting the ransom money amount may differ relying on certain neighborhood (local) setups. The ransom notes and techniques of obtaining the ransom quantity may differ depending on particular neighborhood (regional) setups.

Ransomware injection

As an example:

    Faulty notifies concerning unlicensed software application.

    In certain locations, the Trojans commonly wrongfully report having identified some unlicensed applications made it possible for on the sufferer’s gadget. The sharp then demands the customer to pay the ransom money.

    Faulty statements about illegal material.

    In nations where software program piracy is less popular, this method is not as effective for the cyber fraudulences. Additionally, the Ransom:Win32/Nasan.B!bit popup alert might falsely claim to be deriving from a police establishment as well as will certainly report having located kid porn or various other prohibited information on the device.

    Ransom:Win32/Nasan.B!bit popup alert may wrongly declare to be acquiring from a law enforcement organization as well as will report having situated kid pornography or other prohibited information on the device. The alert will likewise have a demand for the user to pay the ransom money.

Technical details

File Info:

crc32: E83E21AC
md5: 0a3c1203a6bd66f8fe3c0fd99f804ab1
name: 0A3C1203A6BD66F8FE3C0FD99F804AB1.mlw
sha1: 1252254f627382dfb583a6088057e5ce9635c2ac
sha256: 30ed8f8ca4cacfd0e1fb3485b6fa5c2a9ad88c655caa99873a0e5dba6ae90fca
sha512: 6533b4a9be6fbe7970c27a2b1d7e0ccec3b18a8e1afc908208a7072f7ead4657885d53074e16f1aa80b615a27e55107e8304b1cef486d3fee8d2d1ec71f5ccd1
ssdeep: 3072:D2hF0C0mnzhcqD05wUqt4pOE8Yn7rfSfYhh5WSrk99Jka:GFnzhcf5w18rfUYh3cGa
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Ransom:Win32/Nasan.B!bit also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Zusy.321037
ALYac Gen:Variant.Zusy.321037
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 005041b71 )
BitDefender Gen:Variant.Zusy.321037
K7GW Trojan ( 005041b71 )
Cybereason malicious.3a6bd6
Cyren W32/Ransom.Satan.A.gen!Eldorado
Symantec Trojan.Exedapan!gm
APEX Malicious
Avast Win32:Ransom-AZF [Trj]
ClamAV Win.Ransomware.Satan-5713061-0
Kaspersky HEUR:Trojan-Ransom.Win32.Generic
Alibaba Ransom:Win32/Nasan.77babb12
NANO-Antivirus Trojan.Win32.DKPS.eljdsa
Tencent Malware.Win32.Gencirc.10b92243
Ad-Aware Gen:Variant.Zusy.321037
Emsisoft Gen:Variant.Zusy.321037 (B)
Comodo TrojWare.Win32.Lepoh.A@70zinc
F-Secure Trojan.TR/Dropper.Gen2
DrWeb Trojan.Packed2.40468
Zillya Trojan.Injector.Win32.473903
TrendMicro Ransom_NATAS.SM1
McAfee-GW-Edition BehavesLike.Win32.Generic.ch
FireEye Generic.mg.0a3c1203a6bd66f8
Sophos Mal/Generic-R + Troj/Ransom-ECZ
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Generic.arujf
Avira TR/Dropper.Gen2
Antiy-AVL Trojan/Win32.AGeneric
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Ransom:Win32/Nasan.B!bit
Arcabit Trojan.Zusy.D4E60D
ZoneAlarm HEUR:Trojan-Ransom.Win32.Generic
GData Gen:Variant.Zusy.321037
Cynet Malicious (score: 100)
AhnLab-V3 Malware/Win32.Generic.C1768929
Acronis suspicious
McAfee GenericRXAY-JO!0A3C1203A6BD
MAX malware (ai score=100)
VBA32 BScope.TrojanRansom.Shaitan
Malwarebytes Malware.AI.1639494395
Panda Trj/Genetic.gen
ESET-NOD32 a variant of Win32/Injector.DKPS
TrendMicro-HouseCall Ransom_NATAS.SM1
Rising Trojan.Ransom.Satan!1.AEB7 (CLOUD)
Yandex Trojan.GenAsa!V2pm0RV3Ess
Ikarus Trojan.Kazy
eGambit Unsafe.AI_Score_93%
Fortinet W32/Injector.DKPS!tr
BitDefenderTheta AI:Packer.939CA2981E
AVG Win32:Ransom-AZF [Trj]
Paloalto generic.ml
CrowdStrike win/malicious_confidence_100% (D)
Qihoo-360 Win32/TrojanDropper.Generic.HxQBexgA

How to remove Ransom:Win32/Nasan.B!bit 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/Nasan.B!bit 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/Nasan.B!bit 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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