Win32/Kryptik.FRNG

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

What is Win32/Kryptik.FRNG infection?

In this short article you will find concerning the definition of Win32/Kryptik.FRNG and also its adverse effect on your computer. Such ransomware are a form of malware that is elaborated by on-line fraudulences to demand paying the ransom by a target.

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In the majority of the cases, Win32/Kryptik.FRNG virus will certainly instruct its targets to initiate funds move for the objective of neutralizing the modifications that the Trojan infection has introduced to the victim’s gadget.

Win32/Kryptik.FRNG Summary

These modifications 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.
  • 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.;
  • A process created a hidden window;
  • 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;
  • Exhibits behavior characteristic of Cerber ransomware;
  • Attempts to execute a binary from a dead or sinkholed URL;
  • Writes a potential ransom message to disk;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Attempts to access Bitcoin/ALTCoin wallets;
  • Collects information to fingerprint the system. There are behavioral human characteristics that can be used to digitally identify a person to grant access to systems, devices, or data. Unlike passwords and verification codes, fingerprints are fundamental parts of user’s identities. Among the threats blocked on biometric data processing and storage systems is spyware, the malware used in phishing attacks (mostly spyware downloaders and droppers), ransomware, and Banking Trojans as posing the greatest danger.
  • 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 documents located on the sufferer’s hard drive — so the victim can no longer make use of the data;
  • Preventing routine accessibility to the target’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.FRNG

One of the most common networks through which Win32/Kryptik.FRNG Ransomware Trojans are injected are:

  • By ways of phishing e-mails;
  • As a consequence of user winding up on a resource that holds a harmful software program;

As soon as the Trojan is successfully infused, it will certainly either cipher the information on the victim’s PC or protect against the tool from working in a correct fashion – while likewise positioning a ransom note that states the demand for the targets to impact the settlement for the purpose of decrypting the records or restoring the file system back to the preliminary condition. In the majority of circumstances, the ransom note will turn up when the client reboots the PC after the system has already been damaged.

Win32/Kryptik.FRNG distribution networks.

In various corners of the world, Win32/Kryptik.FRNG grows by jumps as well as bounds. Nonetheless, the ransom money notes as well as methods of obtaining the ransom quantity may vary depending upon certain local (local) settings. The ransom money notes as well as techniques of obtaining the ransom money amount may differ depending on specific regional (regional) settings.

Ransomware injection

For example:

    Faulty alerts about unlicensed software application.

    In certain areas, the Trojans frequently wrongfully report having detected some unlicensed applications made it possible for on the target’s tool. The alert then demands the customer to pay the ransom money.

    Faulty statements regarding prohibited web content.

    In countries where software application piracy is less preferred, this approach is not as efficient for the cyber scams. Alternatively, the Win32/Kryptik.FRNG popup alert may wrongly assert to be deriving from a law enforcement organization and will report having situated child pornography or other illegal information on the tool.

    Win32/Kryptik.FRNG popup alert may incorrectly declare to be deriving from a regulation enforcement institution and also will certainly report having situated youngster porn or various other illegal information on the gadget. The alert will likewise include a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: 729E0180
md5: 81c3e5eb2dd9cc282d6c1618ab43edac
name: 81C3E5EB2DD9CC282D6C1618AB43EDAC.mlw
sha1: d79c52352a89101000849231926e2b22425f06b2
sha256: cf947606d79353436a2565ad22446afe18d401111f69308f97a1eb663e8389a7
sha512: 265659f9abf52733c9d7ccc9693281fd4760184533e0e08db870641021bbffbc95672ea793574c1cc66ab04fa95e7ccb5ac4848d9b0d1ec8769a3a6ea7ca1a9b
ssdeep: 6144:4TQ4l188zNDXCaOaX10i6hZzuu72NuuRQ2zSD8bq/h:TO8W+a4i6hZzuQbuhzsQe
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.FRNG also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 005137001 )
Elasticmalicious (high confidence)
DrWebTrojan.Encoder.10731
CynetMalicious (score: 100)
CAT-QuickHealRansom.Exxroute.A4
ALYacGen:Variant.Agiala.27
CylanceUnsafe
ZillyaTrojan.Zerber.Win32.2112
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (W)
AlibabaRansom:Win32/Cerber.ali1020013
K7GWTrojan ( 0050bd651 )
Cybereasonmalicious.b2dd9c
CyrenW32/Cerber.BQ1.gen!Eldorado
SymantecPacked.Generic.493
ESET-NOD32a variant of Win32/Kryptik.FRNG
APEXMalicious
AvastWin32:Malware-gen
ClamAVWin.Dropper.Cerber-7174760-0
KasperskyTrojan-Ransom.Win32.Zerber.ftyp
BitDefenderGen:Variant.Agiala.27
NANO-AntivirusTrojan.Win32.Zerber.envnmi
ViRobotTrojan.Win32.Cerber.290353
MicroWorld-eScanGen:Variant.Agiala.27
TencentMalware.Win32.Gencirc.10b5370f
Ad-AwareGen:Variant.Agiala.27
SophosML/PE-A + Mal/Elenoocka-E
ComodoTrojWare.Win32.TrojanDropper.Evotob.A@70f09z
BitDefenderThetaGen:NN.ZexaF.34628.rqX@aucjSj
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom_CERBER.SM38
McAfee-GW-EditionBehavesLike.Win32.Ransomware.dc
FireEyeGeneric.mg.81c3e5eb2dd9cc28
EmsisoftGen:Variant.Agiala.27 (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan.Generic.axgya
AviraHEUR/AGEN.1116792
eGambitUnsafe.AI_Score_99%
MicrosoftRansom:Win32/Cerber.J
ArcabitTrojan.Agiala.27
GDataGen:Variant.Agiala.27
AhnLab-V3Trojan/Win32.Cerber.R203133
Acronissuspicious
McAfeeRansomware-FMEU!81C3E5EB2DD9
MAXmalware (ai score=82)
VBA32Trojan.FakeAV.01657
MalwarebytesCerber.Ransom.Encrypt.DDS
PandaTrj/Genetic.gen
TrendMicro-HouseCallRansom_CERBER.SM38
RisingRansom.Cerber!8.3058 (TFE:dGZlOgIZXhdxz3DzSQ)
YandexTrojan.GenAsa!ylS+xOlVEQo
IkarusTrojan.Crypt
FortinetW32/Kryptik.FSHI!tr
AVGWin32:Malware-gen
Qihoo-360Win32/Ransom.Cerber.HxQBPwIA

How to remove Win32/Kryptik.FRNG 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

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.FRNG 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.FRNG 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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