Win32/Kryptik.WXF

Written by Robert Bailey

What is Win32/Kryptik.WXF infection?

In this post you will find concerning the interpretation of Win32/Kryptik.WXF and its unfavorable influence on your computer system. Such ransomware are a kind of malware that is clarified by on-line scams to require paying the ransom money by a victim.

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In the majority of the instances, Win32/Kryptik.WXF ransomware will instruct its victims to start funds transfer for the objective of reducing the effects of the modifications that the Trojan infection has actually presented to the sufferer’s tool.

Win32/Kryptik.WXF 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.

  • 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.
  • Uses Windows utilities for basic functionality;
  • 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
  • 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.
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files located on the victim’s hard disk drive — so the target can no more utilize the information;
  • Preventing routine accessibility to the victim’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

Win32/Kryptik.WXF

The most regular channels whereby Win32/Kryptik.WXF Trojans are infused are:

  • By ways of phishing emails;
  • As a repercussion of individual ending up on a source that organizes a destructive software application;

As quickly as the Trojan is efficiently injected, it will certainly either cipher the information on the sufferer’s PC or stop the tool from functioning in a correct fashion – while additionally placing a ransom note that discusses the requirement for the victims to impact the repayment for the purpose of decrypting the papers or bring back the documents system back to the initial condition. In many circumstances, the ransom note will show up when the customer restarts the PC after the system has currently been damaged.

Win32/Kryptik.WXF distribution networks.

In different corners of the globe, Win32/Kryptik.WXF expands by leaps and also bounds. Nonetheless, the ransom money notes and also techniques of extorting the ransom money quantity might differ relying on specific neighborhood (local) setups. The ransom notes and also methods of obtaining the ransom quantity might differ depending on particular neighborhood (regional) setups.

Ransomware injection

As an example:

    Faulty signals concerning unlicensed software application.

    In particular locations, the Trojans usually wrongfully report having detected some unlicensed applications allowed on the sufferer’s device. The sharp then demands the individual to pay the ransom money.

    Faulty declarations regarding illegal content.

    In countries where software program piracy is less preferred, this approach is not as effective for the cyber fraudulences. Conversely, the Win32/Kryptik.WXF popup alert might falsely assert to be deriving from a law enforcement establishment as well as will certainly report having situated child pornography or various other illegal data on the device.

    Win32/Kryptik.WXF popup alert might falsely declare to be obtaining from a law enforcement establishment and also will certainly report having situated youngster porn or other unlawful data on the device. The alert will similarly consist of a need for the individual to pay the ransom money.

Technical details

File Info:

crc32: B31BC8B3
md5: 0d6f4340e2609f10296c773e47400015
name: 0D6F4340E2609F10296C773E47400015.mlw
sha1: 1bc5432022256db16b070285671bf81945f7161a
sha256: 9a9b72aa57782c40abbdbc33655d00a8cabedcef0ed26fbfbbed4bf2b80452d7
sha512: bf3805735c3dfde13cd7701b36dc3cf18de1063d1f44bfe641e19eacbd7ab12ef00b1cc4821c2e3b1d59ef0104cb9ae78c2ab80e476fcc1921ef8240436d49f4
ssdeep: 768:Oxiq61n5t88Zykdv/sgIPeO3mYyGzwCI1zmBTCrXGqSPxo1LuW:OEq63t88Mkdvf3CduC0zrXGqSPxSuW
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: 5TGt2P
InternalName: SQoBO6tAAG
FileVersion: 80whf8CtKLPg
CompanyName: Hex-Rays SA
ProductName: ABoYTuFgBLiCNT
ProductVersion: wJVAh8PH
FileDescription: Zo5B
OriginalFilename: EPCCje0ZKs

Win32/Kryptik.WXF also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 002daab61 )
Elastic malicious (high confidence)
DrWeb Trojan.Winlock.3481
Cynet Malicious (score: 100)
CAT-QuickHeal Trojan.Ransom.A
McAfee Artemis!0D6F4340E260
Cylance Unsafe
Zillya Trojan.Timer.Win32.603
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Ransom:Win32/Timer.81cc8be3
K7GW Trojan ( 002daab61 )
Cybereason malicious.0e2609
Cyren W32/Ransom.J.gen!Eldorado
Symantec Trojan.Ransomlock!gen2
ESET-NOD32 a variant of Win32/Kryptik.WXF
APEX Malicious
Avast Win32:Mystic
ClamAV Win.Trojan.Ransom-6009
Kaspersky Trojan-Ransom.Win32.Timer.fii
BitDefender Gen:Variant.Kazy.27983
NANO-Antivirus Trojan.Win32.Timer.dpwyj
MicroWorld-eScan Gen:Variant.Kazy.27983
Tencent Win32.Trojan.Timer.Hfr
Ad-Aware Gen:Variant.Kazy.27983
Sophos ML/PE-A + Mal/EncPk-ADY
Comodo TrojWare.Win32.Trojan.Agent.~xtsa@3ymfaa
BitDefenderTheta Gen:NN.ZexaF.34688.du0@aW81uMdI
VIPRE Trojan.Win32.Ransom.do (v)
TrendMicro Ransom_Genasom.R002C0DE621
McAfee-GW-Edition BehavesLike.Win32.Trojan.kc
FireEye Generic.mg.0d6f4340e2609f10
Emsisoft Gen:Variant.Kazy.27983 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan/Timer.xd
Webroot W32.Trojan.Timer.Gen
Avira TR/Crypt.ZPACK.Gen
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Ransom:Win32/Genasom.DN
AegisLab Trojan.Win32.Timer.j!c
GData Gen:Variant.Kazy.27983
TACHYON Trojan/W32.Timer.62976.F
VBA32 Trojan.ExpProc.014
MAX malware (ai score=100)
Panda Generic Malware
TrendMicro-HouseCall Ransom_Genasom.R002C0DE621
Rising Ransom.Timer!8.30B6 (CLOUD)
Yandex Trojan.Kryptik!jIpxqQjfDf8
Ikarus Trojan-Ransom.Timer
eGambit Unsafe.AI_Score_86%
Fortinet W32/RansomTimer.fam!tr
AVG Win32:Mystic
Paloalto generic.ml

How to remove Win32/Kryptik.WXF 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

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.WXF 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:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Win32/Kryptik.WXF 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/products/

About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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