Win32/Kryptik.GDBW

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

What is Win32/Kryptik.GDBW infection?

In this post you will certainly locate about the definition of Win32/Kryptik.GDBW and its negative effect on your computer. Such ransomware are a type of malware that is specified by on-line scams to require paying the ransom money by a target.

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In the majority of the situations, Win32/Kryptik.GDBW virus will instruct its victims to launch funds move for the objective of neutralizing the amendments that the Trojan infection has actually presented to the victim’s device.

Win32/Kryptik.GDBW Summary

These modifications 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.
  • 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.
  • Uses Windows utilities for basic functionality;
  • 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!
  • 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
  • Checks the CPU name from registry, possibly for anti-virtualization;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the records located on the target’s hard disk — so the sufferer can no longer make use of the data;
  • Preventing routine access 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.
Similar behavior
Related domains
z.whorecord.xyzRansom_HPGANDCRAB.SMONT
a.tomx.xyzRansom_HPGANDCRAB.SMONT
ipv4bot.whatismyipaddress.comRansom_HPGANDCRAB.SMONT
dns1.soprodns.ruRansom_HPGANDCRAB.SMONT
nomoreransom.coinRansom_HPGANDCRAB.SMONT
nomoreransom.bitRansom_HPGANDCRAB.SMONT

Win32/Kryptik.GDBW

One of the most common networks where Win32/Kryptik.GDBW are infused are:

  • By means of phishing emails;
  • As a repercussion of user winding up on a source that holds a malicious software;

As soon as the Trojan is successfully infused, it will certainly either cipher the information on the target’s PC or prevent the device from operating in an appropriate manner – while likewise placing a ransom note that points out the need for the targets to impact the payment for the objective of decrypting the papers or recovering the file system back to the initial condition. In most instances, the ransom money note will certainly turn up when the client restarts the COMPUTER after the system has actually already been harmed.

Win32/Kryptik.GDBW circulation networks.

In numerous corners of the globe, Win32/Kryptik.GDBW grows by jumps as well as bounds. Nevertheless, the ransom notes as well as methods of extorting the ransom quantity might differ depending on specific local (regional) settings. The ransom notes as well as tricks of obtaining the ransom quantity might vary depending on specific regional (regional) settings.

Ransomware injection

As an example:

    Faulty signals regarding unlicensed software application.

    In certain locations, the Trojans commonly wrongfully report having detected some unlicensed applications made it possible for on the victim’s device. The sharp after that demands the customer to pay the ransom money.

    Faulty statements about prohibited content.

    In countries where software piracy is much less popular, this method is not as reliable for the cyber scams. Conversely, the Win32/Kryptik.GDBW popup alert may falsely assert to be stemming from a police establishment and will certainly report having situated youngster porn or various other unlawful data on the tool.

    Win32/Kryptik.GDBW popup alert might incorrectly declare to be acquiring from a law enforcement institution and will report having situated child pornography or other prohibited data on the device. The alert will in a similar way contain a need for the customer to pay the ransom money.

Technical details

File Info:

crc32: FFFC363F
md5: b2c829d292ec456729f148b27b88a08b
name: B2C829D292EC456729F148B27B88A08B.mlw
sha1: 220ed9f241f77f46e0550a6041c517856f5f34b7
sha256: 4e2392136182c889908b57beeb12f7e8cfb078b74d173ecd8dcb3e627b3a20f2
sha512: d4c11291edaa923835e9df7e65cec110fcbffe3f3ad3f8501297629a2287f1f1aa389937972c791c26d14259860b900ed1e5f357447f44446d9545a82ee28a99
ssdeep: 6144:LjndzICWmSKf+MuRB1uZq/y4LVZMJ2LQU2i:ndzEmSKf+MNZqaIEYQ9i
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.GDBW also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
Elasticmalicious (high confidence)
DrWebTrojan.PWS.Banker1.25453
MicroWorld-eScanGen:Heur.Mint.Titirez.syW@ay3klDk
CAT-QuickHealTrojan.Chapak.ZZ6
ALYacGen:Heur.Mint.Titirez.syW@ay3klDk
CylanceUnsafe
VIPRETrojan.Win32.Generic!BT
SangforTrojan.Win32.Save.a
K7AntiVirusTrojan ( 0053305e1 )
BitDefenderGen:Heur.Mint.Titirez.syW@ay3klDk
K7GWTrojan ( 0052743e1 )
Cybereasonmalicious.292ec4
BitDefenderThetaGen:NN.ZexaF.34590.syW@ay3klDk
CyrenW32/S-135e99c5!Eldorado
SymantecPacked.Generic.525
APEXMalicious
AvastFileRepMalware
ClamAVWin.Dropper.Tspy-6605962-0
KasperskyHEUR:Trojan.Win32.Generic
NANO-AntivirusTrojan.Win32.GandCrypt.eyalam
AegisLabTrojan.Win32.GandCrypt.j!c
RisingTrojan.Kryptik!1.B048 (RDMK:cmRtazqh2Yea+BocOGx3rF2ve9UC)
Ad-AwareGen:Heur.Mint.Titirez.syW@ay3klDk
EmsisoftGen:Heur.Mint.Titirez.syW@ay3klDk (B)
ComodoTrojWare.Win32.Cloxer.AY@7o68fu
F-SecureHeuristic.HEUR/AGEN.1103298
ZillyaTrojan.GandCrypt.Win32.65
TrendMicroRansom_HPGANDCRAB.SMONT
McAfee-GW-EditionBehavesLike.Win32.Generic.dc
FireEyeGeneric.mg.b2c829d292ec4567
SophosML/PE-A + Mal/GandCrab-A
IkarusTrojan-Ransom.FileCrypter
JiangminTrojan.GandCrypt.r
MaxSecureTrojan.Malware.300983.susgen
AviraHEUR/AGEN.1103298
MAXmalware (ai score=80)
Antiy-AVLTrojan[Ransom]/Win32.GandCrypt
MicrosoftRansom:Win32/GandCrab!rfn
ArcabitTrojan.Mint.Titirez.EFF5C0
ZoneAlarmHEUR:Trojan.Win32.Generic
GDataGen:Heur.Mint.Titirez.syW@ay3klDk
CynetMalicious (score: 100)
AhnLab-V3Trojan/Win32.Scar.C2407393
Acronissuspicious
McAfeePacked-ZG!B2C829D292EC
VBA32TrojanRansom.GandCrypt
MalwarebytesTrojan.MalPack
PandaTrj/GandCrabRansom.A
ESET-NOD32a variant of Win32/Kryptik.GDBW
TrendMicro-HouseCallRansom_HPGANDCRAB.SMONT
TencentMalware.Win32.Gencirc.10b6cfd8
YandexTrojan.GenAsa!q0v2zWe3k2g
SentinelOneStatic AI – Malicious PE
eGambitUnsafe.AI_Score_99%
FortinetW32/GenKryptik.BAPN!worm
AVGFileRepMalware
Paloaltogeneric.ml
CrowdStrikewin/malicious_confidence_100% (D)
Qihoo-360Win32/Trojan.201

How to remove Win32/Kryptik.GDBW 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.

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.GDBW 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.GDBW 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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