Win32/Kryptik.ELNU

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

What is Win32/Kryptik.ELNU infection?

In this article you will certainly find regarding the interpretation of Win32/Kryptik.ELNU as well as its adverse influence on your computer system. Such ransomware are a type of malware that is elaborated by on the internet scams to require paying the ransom money by a target.

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Most of the instances, Win32/Kryptik.ELNU infection will instruct its victims to launch funds transfer for the objective of counteracting the changes that the Trojan infection has actually introduced to the victim’s gadget.

Win32/Kryptik.ELNU Summary

These adjustments can be as complies with:

  • 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.

  • A process created a hidden window;
  • 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.
  • Unconventionial language used in binary resources: Chinese (Simplified);
  • Uses Windows utilities for basic functionality;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Attempts to delete volume shadow copies;
  • Exhibits behavior characteristic of Alphacrypt/Teslacrypt ransomware;
  • 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
  • Writes a potential ransom message to disk;
  • Creates a copy of itself;
  • Creates a known TeslaCrypt/AlphaCrypt ransomware decryption instruction / key file.;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the records found on the sufferer’s hard disk — so the victim can no more make use of the information;
  • Preventing regular accessibility to the victim’s workstation;

Win32/Kryptik.ELNU

One of the most common channels whereby Win32/Kryptik.ELNU Ransomware are injected are:

  • By methods of phishing emails;
  • As a repercussion of user ending up on a source that hosts a harmful software;

As quickly as the Trojan is successfully infused, it will either cipher the data on the target’s computer or prevent the tool from functioning in a proper way – while additionally putting a ransom note that points out the need for the targets to impact the repayment for the function of decrypting the files or recovering the documents system back to the initial condition. In most instances, the ransom note will turn up when the client restarts the PC after the system has actually already been harmed.

Win32/Kryptik.ELNU circulation channels.

In numerous corners of the globe, Win32/Kryptik.ELNU expands by leaps and bounds. However, the ransom money notes as well as tricks of obtaining the ransom amount might differ relying on particular local (local) settings. The ransom money notes and techniques of obtaining the ransom quantity might vary depending on particular regional (local) setups.

Ransomware injection

As an example:

    Faulty signals concerning unlicensed software application.

    In certain areas, the Trojans frequently wrongfully report having found some unlicensed applications enabled on the target’s tool. The sharp then requires the individual to pay the ransom.

    Faulty statements concerning illegal web content.

    In nations where software program piracy is less popular, this technique is not as effective for the cyber scams. Conversely, the Win32/Kryptik.ELNU popup alert might incorrectly assert to be stemming from a law enforcement organization and will report having located child pornography or other prohibited data on the gadget.

    Win32/Kryptik.ELNU popup alert might wrongly assert to be acquiring from a legislation enforcement institution and will report having situated child porn or other prohibited data on the tool. The alert will likewise contain a need for the user to pay the ransom money.

Technical details

File Info:

crc32: 49DB372E
md5: cd789de2b8c022d9abe780572e6dca63
name: CD789DE2B8C022D9ABE780572E6DCA63.mlw
sha1: 1546747697c837d6a8253d6c5fbed21b2ca77747
sha256: c9dc82024b3812d90bce129c1c826a450d4f2c1e7804c6138b1a4bedc813fa86
sha512: d707b078d7bf7a54894b1f55da500b07b66132cec628e8f4dd9d2efb074ac0e920f6ab47c6a0e5ff67f00f1ecacd3db3c2f84e7637425893fc45e1e20c325e50
ssdeep: 6144:nue+Oqgc1oJLYYWHotlH8i+bVQKsg7f0tz5KzWbqQEvhtnfiwBBla42FkHnV23R:n0Uc1oWQz+Rdsg7f0tz5Kd/wL/0Za
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.ELNU also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 0055dd191 )
Elasticmalicious (high confidence)
DrWebTrojan.Encoder.3564
CynetMalicious (score: 100)
CAT-QuickHealRansom.Cerber.A4
ALYacTrojan.Ransom.Cerber.1
CylanceUnsafe
ZillyaTrojan.Kryptik.Win32.861803
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (D)
AlibabaRansom:Win32/Tescrypt.20dff86f
K7GWTrojan ( 0055dd191 )
Cybereasonmalicious.2b8c02
BaiduWin32.Trojan.Filecoder.j
CyrenW32/Locky.H2.gen!Eldorado
SymantecPacked.Generic.459
ESET-NOD32a variant of Win32/Kryptik.ELNU
APEXMalicious
AvastWin32:Trojan-gen
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderTrojan.Ransom.Cerber.1
NANO-AntivirusTrojan.Win32.MlwGen.dzvuoa
ViRobotTrojan.Win32.U.Agent.619008
SUPERAntiSpywareRansom.Filecoder/Variant
MicroWorld-eScanTrojan.Ransom.Cerber.1
TencentMalware.Win32.Gencirc.10ba1b6b
Ad-AwareTrojan.Ransom.Cerber.1
SophosMal/Generic-R + Mal/Tinba-T
ComodoTrojWare.Win32.Ransom.Crowti.V@6a51xr
BitDefenderThetaGen:NN.ZexaF.34628.LqW@aqXBgyfb
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom_HPCERBER.SMALY5A
McAfee-GW-EditionRansomware-FCW!CD789DE2B8C0
FireEyeGeneric.mg.cd789de2b8c022d9
EmsisoftTrojan.Ransom.Cerber.1 (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan.Bitman.eo
WebrootTrojan.Dropper.Gen
AviraHEUR/AGEN.1122272
eGambitUnsafe.AI_Score_85%
MicrosoftRansom:Win32/Tescrypt.D
ArcabitTrojan.Ransom.Cerber.1
ZoneAlarmHEUR:Trojan.Win32.Generic
GDataTrojan.Ransom.Cerber.1
AhnLab-V3Win-Trojan/Cerber.Gen
Acronissuspicious
McAfeeRansomware-FCW!CD789DE2B8C0
MAXmalware (ai score=82)
VBA32Hoax.Bitman
MalwarebytesMachineLearning/Anomalous.100%
PandaGeneric Suspicious
TrendMicro-HouseCallRansom_HPCERBER.SMALY5A
RisingTrojan.Generic!8.C3 (CLOUD)
IkarusTrojan.Win32.Filecoder
FortinetW32/Kryptik.FQRH!tr
AVGWin32:Trojan-gen
Paloaltogeneric.ml
Qihoo-360Win32/Ransom.Tescrypt.HxQBEpsA

How to remove Win32/Kryptik.ELNU ransomware?

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 Win32/Kryptik.ELNU 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/Kryptik.ELNU 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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