Win32/Kryptik.FRTO

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

What is Win32/Kryptik.FRTO infection?

In this short article you will certainly find regarding the meaning of Win32/Kryptik.FRTO and also its unfavorable impact on your computer system. Such ransomware are a kind of malware that is clarified by on the internet frauds to demand paying the ransom money by a target.

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In the majority of the situations, Win32/Kryptik.FRTO virus will certainly instruct its sufferers to start funds transfer for the purpose of counteracting the changes that the Trojan infection has actually presented to the victim’s tool.

Win32/Kryptik.FRTO Summary

These alterations can be as follows:

  • 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.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Attempts to stop active services;
  • 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
  • Creates a hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
  • 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.
  • Operates on local firewall’s policies and settings;
  • Creates a copy of itself;
  • Attempts to disable UAC.

    User Account Control or just UAC is a part of the Windows security system which prevents apps from making unwanted changes on PC.

    UAC includes several technologies 1:

    • File and egistry Virtualization;
    • Same-desktop Elevation;
    • Filtered Token;
    • User Interface Privilege Isolation;
    • Protected Mode Internet Explorer;
    • Installer Detection;
  • Attempts to disable Windows Defender;
  • Attempts to modify or disable Security Center warnings;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers located on the sufferer’s hard drive — so the target can no more use the data;
  • 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.

Win32/Kryptik.FRTO

One of the most normal channels through which Win32/Kryptik.FRTO Ransomware are injected are:

  • By means of phishing emails;
  • As a consequence of customer winding up on a resource that hosts a harmful software application;

As quickly as the Trojan is successfully injected, it will either cipher the information on the victim’s PC or prevent the gadget from operating in a correct manner – while additionally putting a ransom money note that states the demand for the sufferers to impact the repayment for the purpose of decrypting the papers or recovering the data system back to the preliminary problem. In a lot of circumstances, the ransom note will certainly show up when the client reboots the COMPUTER after the system has currently been damaged.

Win32/Kryptik.FRTO circulation networks.

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

Ransomware injection

For instance:

    Faulty signals concerning unlicensed software application.

    In certain areas, the Trojans commonly wrongfully report having detected some unlicensed applications made it possible for on the target’s device. The sharp after that requires the individual to pay the ransom.

    Faulty statements concerning prohibited content.

    In nations where software program piracy is less prominent, this method is not as efficient for the cyber frauds. Additionally, the Win32/Kryptik.FRTO popup alert may wrongly assert to be deriving from a law enforcement institution and also will certainly report having situated kid porn or other unlawful data on the tool.

    Win32/Kryptik.FRTO popup alert might wrongly declare to be acquiring from a regulation enforcement establishment and will certainly report having situated child porn or other unlawful data on the tool. The alert will in a similar way include a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: BFF314F2
md5: 9abab74886c68b0d34333795461fcca0
name: 9ABAB74886C68B0D34333795461FCCA0.mlw
sha1: 02c48b1273d498a976f428ae9a8fcd3c75d19270
sha256: 50306a581fad85050971a0bef3c69002dc2c86f73caec5d0aba0bf52a784854b
sha512: 8588506a279a186eb4df765f5cd1cc0cd1505f6b8196830b9f978241c87062f0bf4c38e4710a6fff7fd9d0d3e2be24310e8573a624e37e2eb65c405528f359c9
ssdeep: 3072:zKxRcsUoXqzL01zzCB6Lp6+5J8VTeuCZ+9C322JJ70xhFm:zyUo6/8GB26+5ETeuCZ+fil0r
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.FRTO also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Heur.Ransom.Lukitos.1
FireEye Gen:Heur.Ransom.Lukitos.1
McAfee GenericRXBM-RD!9ABAB74886C6
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
AegisLab Virus.Win32.Sality.l36o
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 005137001 )
BitDefender Gen:Heur.Ransom.Lukitos.1
K7GW Trojan ( 005137001 )
Cybereason malicious.886c68
Symantec Packed.Generic.493
APEX Malicious
Avast Win32:Rootkit-gen [Rtk]
Kaspersky Backdoor.Win32.IRCNite.jwm
Alibaba Backdoor:Win32/IRCNite.04bd5ffe
NANO-Antivirus Trojan.Win32.Kryptik.fkdgzc
Rising Ransom.Cerber!8.3058 (TFE:dGZlOgIZXhdxz3DzSQ)
Ad-Aware Gen:Heur.Ransom.Lukitos.1
Emsisoft Gen:Heur.Ransom.Lukitos.1 (B)
Comodo TrojWare.Win32.TrojanDropper.Evotob.A@70f09z
F-Secure Heuristic.HEUR/AGEN.1116789
DrWeb Trojan.Dyre.43
Zillya Trojan.Generic.Win32.357216
TrendMicro Ransom_CERBER.SM38
McAfee-GW-Edition BehavesLike.Win32.Ransomware.cc
Sophos Mal/Generic-R + Mal/EncPk-AOP
Ikarus Trojan.Crypt
Avira HEUR/AGEN.1116789
MAX malware (ai score=100)
Antiy-AVL HackTool[VirTool]/Win32.Obfuscator
Microsoft VirTool:Win32/Obfuscator.ARL
Arcabit Trojan.Ransom.Lukitos.1
ZoneAlarm Backdoor.Win32.IRCNite.jwm
GData Gen:Heur.Ransom.Lukitos.1
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Zerber.R199586
Acronis suspicious
BitDefenderTheta Gen:NN.ZexaF.34590.jqW@aipBzrmi
ALYac Gen:Heur.Ransom.Lukitos.1
VBA32 Trojan.FakeAV.01657
Malwarebytes MachineLearning/Anomalous.100%
Panda Trj/GdSda.A
ESET-NOD32 a variant of Win32/Kryptik.FRTO
TrendMicro-HouseCall Ransom_CERBER.SM38
Tencent Win32.Backdoor.Ircnite.Hwms
Yandex Trojan.GenAsa!iqLG2d6+ilc
SentinelOne Static AI – Malicious PE
eGambit Unsafe.AI_Score_99%
Fortinet W32/Kryptik.FSHI!tr
AVG Win32:Rootkit-gen [Rtk]
Paloalto generic.ml
CrowdStrike win/malicious_confidence_100% (D)
Qihoo-360 Win32/TrojanPSW.Carberp.HxQBuKMA

How to remove Win32/Kryptik.FRTO 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 GridinSoft2

There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft3.

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.FRTO 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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Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Win32/Kryptik.FRTO you can always ask me in the comments for getting help.

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References

  1. Microsoft Ignite: How to disable User Account Control (UAC) on Windows Server
  2. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  3. 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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