Win32/Kryptik.XLN

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

What is Win32/Kryptik.XLN infection?

In this article you will locate concerning the interpretation of Win32/Kryptik.XLN as well as its negative effect on your computer. Such ransomware are a type of malware that is specified by on the internet frauds to demand paying the ransom money by a victim.

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Most of the situations, Win32/Kryptik.XLN virus will certainly advise its targets to start funds transfer for the function of neutralizing the amendments that the Trojan infection has actually presented to the target’s device.

Win32/Kryptik.XLN Summary

These alterations can be as adheres to:

  • 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.
  • Compression (or decompression);
  • 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.;
  • Expresses interest in specific running processes;
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • 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: Russian;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Behavior consistent with a dropper attempting to download the next stage.;
  • Network activity contains more than one unique useragent.;
  • 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
  • Attempts to modify browser security settings;
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents located on the target’s hard disk — so the victim can no longer utilize the data;
  • Preventing routine access to the sufferer’s workstation;

Win32/Kryptik.XLN

One of the most common channels whereby Win32/Kryptik.XLN are infused are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As an effect of individual winding up on a resource that organizes a harmful software;

As soon as the Trojan is effectively infused, it will either cipher the data on the target’s computer or protect against the gadget from functioning in a correct way – while additionally placing a ransom note that discusses the need for the targets to impact the settlement for the objective of decrypting the records or bring back the file system back to the initial problem. In the majority of circumstances, the ransom note will come up when the customer reboots the COMPUTER after the system has actually currently been harmed.

Win32/Kryptik.XLN distribution channels.

In different corners of the globe, Win32/Kryptik.XLN grows by jumps and also bounds. Nevertheless, the ransom money notes and techniques of extorting the ransom money quantity might differ relying on specific local (regional) settings. The ransom money notes as well as techniques of obtaining the ransom amount might vary depending on specific local (local) settings.

Ransomware injection

For instance:

    Faulty alerts concerning unlicensed software program.

    In specific areas, the Trojans frequently wrongfully report having detected some unlicensed applications allowed on the target’s device. The alert after that demands the customer to pay the ransom money.

    Faulty declarations regarding prohibited content.

    In countries where software program piracy is less popular, this method is not as reliable for the cyber scams. Conversely, the Win32/Kryptik.XLN popup alert may wrongly assert to be stemming from a law enforcement institution and will report having located child pornography or various other illegal data on the gadget.

    Win32/Kryptik.XLN popup alert may wrongly claim to be acquiring from a regulation enforcement establishment and will report having located kid porn or other illegal information on the device. The alert will in a similar way consist of a requirement for the customer to pay the ransom.

Technical details

File Info:

crc32: A0656AC0
md5: ec8495632f06c60f12404042778d08a4
name: EC8495632F06C60F12404042778D08A4.mlw
sha1: 5f7608f3fbcf123436bc6a0e3c34217b3831cfac
sha256: 8813ed22e890824bdc26eadc86f5149ba4542d7591dde6f5daf3d4bb28547cbb
sha512: 7d225388805596cc4553551ea72f928c0812181ed5449eaaa4e950246ff6c46a4db7c4fa0a0c50df7823cae1301d1170acce063dc06ef6267eaa0b4fc85637bd
ssdeep: 3072:jAB7jyQLAdWrrazB6D1GqoTWIMUoFcZ3mH+fd2ywPY5QjHHCXNdo1zpz:jAB7rLAdWr+zB6DfoTuUDp+yv6jnCXN
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright 2004
FileVersion: 6.5.405.27
CompanyName: Arcsoft, Inc.
ProductName: UACTokenSvc
ProductVersion: 6.5.405.27
FileDescription: UACTokenSvc
Translation: 0x0409 0x04b0

Win32/Kryptik.XLN also known as:

GridinSoftTrojan.Ransom.Gen
K7AntiVirusTrojan ( 0055dd191 )
Elasticmalicious (high confidence)
DrWebTrojan.Winlock.4367
CynetMalicious (score: 100)
CylanceUnsafe
ZillyaTrojan.Blocker.Win32.303
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_80% (D)
AlibabaRansom:Win32/Blocker.a557ad78
K7GWTrojan ( 0055dd191 )
Cybereasonmalicious.32f06c
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of Win32/Kryptik.XLN
APEXMalicious
AvastWin32:Downloader-LUB [Trj]
KasperskyTrojan-Ransom.Win32.Blocker.bna
BitDefenderGen:Heur.Zygug.5
NANO-AntivirusTrojan.Win32.Offend.kaxdi
ViRobotTrojan.Win32.A.Blocker.173056.C
MicroWorld-eScanGen:Heur.Zygug.5
TencentWin32.Trojan.Blocker.Amvs
Ad-AwareGen:Heur.Zygug.5
SophosML/PE-A + Mal/FakeAV-PR
ComodoSuspicious@#1591lo7coaqgp
F-SecureHeuristic.HEUR/AGEN.1128373
BitDefenderThetaGen:NN.ZexaF.34670.ku0@amtYWJbk
VIPRETrojan.Win32.Generic!BT
McAfee-GW-EditionBehavesLike.Win32.MultiPlug.cc
FireEyeGeneric.mg.ec8495632f06c60f
EmsisoftGen:Heur.Zygug.5 (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan/Blocker.kw
WebrootW32.Rogue.Gen
AviraHEUR/AGEN.1128373
eGambitGeneric.Malware
Antiy-AVLTrojan/Win32.SGeneric
KingsoftWin32.Troj.Undef.(kcloud)
MicrosoftRansom:Win32/Genasom
ArcabitTrojan.Zygug.5
AegisLabTrojan.Win32.Blocker.j!c
ZoneAlarmTrojan-Ransom.Win32.Blocker.bna
GDataGen:Heur.Zygug.5
AhnLab-V3Trojan/Win32.Jorik.R17403
Acronissuspicious
McAfeeRansom-AR
MAXmalware (ai score=100)
VBA32Hoax.Blocker
MalwarebytesMalware.AI.3689182923
PandaGeneric Malware
RisingRansom.Blocker!8.12A (CLOUD)
YandexTrojan.GenAsa!3F1RgQe8vII
IkarusTrojan-Ransom.Blocker
MaxSecureTrojan.Malware.3410580.susgen
FortinetW32/Kryptik.MGS!tr
AVGWin32:Downloader-LUB [Trj]
Paloaltogeneric.ml
Qihoo-360Win32/Ransom.Blocker.HxQBnBUB

How to remove Win32/Kryptik.XLN 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.

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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.XLN 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.XLN 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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