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

What is Win32/Kryptik.FXED infection?

In this post you will find concerning the meaning of Win32/Kryptik.FXED and also its adverse effect on your computer system. Such ransomware are a type of malware that is clarified by on the internet scams to demand paying the ransom by a sufferer.

GridinSoft Anti-Malware Review
It is better to prevent, than repair and repent!
When we talk about the intrusion of unfamiliar programs into your computer’s work, the proverb “Forewarned is forearmed” describes the situation as accurately as possible. Gridinsoft Anti-Malware is exactly the tool that is always useful to have in your armory: fast, efficient, up-to-date. It is appropriate to use it as an emergency help at the slightest suspicion of infection.
Gridinsoft Anti-Malware 6-day trial available.
EULA | Privacy Policy | 10% Off Coupon
Subscribe to our Telegram channel to be the first to know about news and our exclusive materials on information security.

In the majority of the situations, Win32/Kryptik.FXED ransomware will certainly instruct its sufferers to launch funds move for the objective of reducing the effects of the changes that the Trojan infection has actually presented to the victim’s device.

Win32/Kryptik.FXED Summary

These adjustments 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.
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • Attempts to connect to a dead IP:Port (3 unique times);
  • 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.
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • Performs some HTTP requests;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Executed a process and injected code into it, probably while unpacking;
  • Detects Sandboxie through the presence of a library;
  • Deletes its original binary from disk;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • A system process is generating network traffic likely as a result of process injection;
  • 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.
  • Checks the presence of disk drives in the registry, possibly for anti-virtualization;
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the records found on the target’s disk drive — so the victim can no more use the information;
  • Preventing regular accessibility to the victim’s workstation;
Similar behavior
Related domains Ransomeware.GandCrypt.Gen Ransomeware.GandCrypt.Gen Ransomeware.GandCrypt.Gen Ransomeware.GandCrypt.Gen


The most common channels where Win32/Kryptik.FXED are injected are:

  • By means of phishing emails;
  • As an effect of user ending up on a resource that hosts a destructive software program;

As quickly as the Trojan is successfully infused, it will certainly either cipher the information on the victim’s computer or avoid the tool from working in a proper manner – while also putting a ransom note that states the requirement for the victims to effect the payment for the purpose of decrypting the files or restoring the documents system back to the preliminary condition. In a lot of circumstances, the ransom money note will certainly come up when the client restarts the COMPUTER after the system has currently been damaged.

Win32/Kryptik.FXED distribution networks.

In different corners of the world, Win32/Kryptik.FXED grows by jumps and bounds. Nevertheless, the ransom money notes and also methods of extorting the ransom money amount may vary depending upon particular regional (local) settings. The ransom notes and also techniques of obtaining the ransom money quantity might differ depending on specific neighborhood (regional) settings.

Ransomware injection

As an example:

    Faulty informs concerning unlicensed software program.

    In specific locations, the Trojans usually wrongfully report having found some unlicensed applications allowed on the sufferer’s gadget. The alert after that demands the customer to pay the ransom money.

    Faulty declarations concerning illegal content.

    In countries where software piracy is less prominent, this approach is not as efficient for the cyber scams. Conversely, the Win32/Kryptik.FXED popup alert may wrongly claim to be deriving from a police organization and will report having located kid porn or other prohibited data on the gadget.

    Win32/Kryptik.FXED popup alert might incorrectly declare to be deriving from a law enforcement organization and also will report having situated child pornography or various other unlawful information on the device. The alert will similarly have a demand for the user to pay the ransom.

Technical details

File Info:

crc32: D2364A10
md5: 52a4ae803a495f6dd0c7c5458f395cc1
name: 52A4AE803A495F6DD0C7C5458F395CC1.mlw
sha1: a1faafd49b2f0df2ea41519310246f834592557a
sha256: dd9e2389a4d46ffbfe4d47d7e15ddf8a1a85072440bb7400e2ee4bc3cbdba4f3
sha512: 950e909483ffa33cc130bb55c3ac07c153209ff53a08bc38405e2b1bdfb813bb87b8c790c5c754c8d239f4a3349baf2c507b98a982345ee6faaddc31de142d83
ssdeep: 3072:948X+IfI8Xp+dI2PzJAg0FubNCmHiA5Cq3w1sHfLRz:KGffIMGAOViA5Cq3wWfFz
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.FXED also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.Common.172B9EFA
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Heur.Mint.Titirez.lCW@ySb90lbi
CAT-QuickHeal Trojan.Chapak.ZZ6
ALYac Gen:Heur.Mint.Titirez.lCW@ySb90lbi
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
AegisLab Trojan.Win32.Scarsi.tpCc
Sangfor Malware
CrowdStrike win/malicious_confidence_100% (W)
BitDefender Gen:Heur.Mint.Titirez.lCW@ySb90lbi
K7GW Adware ( 00539ed31 )
K7AntiVirus Adware ( 00539ed31 )
BitDefenderTheta Gen:NN.ZexaF.34804.lCW@aSb90lbi
Cyren W32/S-724ffe4d!Eldorado
Symantec Packed.Generic.525
APEX Malicious
Avast FileRepMalware
ClamAV Win.Trojan.Emotet-6352889-0
Kaspersky Trojan.Win32.Inject.akugh
NANO-Antivirus Trojan.Win32.Jimmy.eteshu
Rising Backdoor.Htbot!8.F02 (TFE:5:ficuU1lbpxN)
Ad-Aware Gen:Heur.Mint.Titirez.lCW@ySb90lbi
Sophos Mal/Generic-S + Mal/Emotet-E
Comodo Malware@#2uboll33irmef
F-Secure Heuristic.HEUR/AGEN.1108445
Zillya Trojan.Jimmy.Win32.15
Emsisoft Gen:Heur.Mint.Titirez.lCW@ySb90lbi (B)
SentinelOne Static AI – Suspicious PE
MaxSecure Ransomeware.GandCrypt.Gen
Avira HEUR/AGEN.1108445
MAX malware (ai score=64)
Antiy-AVL Trojan[Banker]/Win32.Jimmy
Kingsoft Win32.Troj.Generic_a.a.(kcloud)
Microsoft TrojanDownloader:Win32/Dofoil.AC
Arcabit Trojan.Mint.Titirez.E340EC
ZoneAlarm Trojan.Win32.Inject.akugh
GData Gen:Heur.Mint.Titirez.lCW@ySb90lbi
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Crypted.R214954
Acronis suspicious
McAfee Trojan-FLWN!52A4AE803A49
VBA32 Trojan-Banker.Jimmy
Malwarebytes Trojan.MalPack
Panda Trj/CI.A
ESET-NOD32 a variant of Win32/Kryptik.FXED
TrendMicro-HouseCall TSPY_EMOTET.SMD3
Tencent Win32.Trojan.Inject.Auto
Yandex Trojan.PWS.Jimmy!xSCDaiBAtC0
Ikarus Trojan.Win32.Crypt
Fortinet W32/Injector.DRRJ!tr
Webroot W32.Trojan.Emotet
AVG FileRepMalware
Cybereason malicious.03a495
Qihoo-360 HEUR/QVM10.2.6147.Malware.Gen

How to remove Win32/Kryptik.FXED virus?

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

The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes.2.

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.FXED 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.FXED you can always ask me in the comments for getting help.

User Review
0 (0 votes)
Comments Rating 0 (0 reviews)


  1. GridinSoft Anti-Malware Review from HowToFix site:
  2. More information about GridinSoft products:

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.

Leave a Reply