Win32/Kryptik.GBSO

What is Win32/Kryptik.GBSO infection?

In this post you will certainly discover concerning the meaning of Win32/Kryptik.GBSO as well as its negative influence on your computer. Such ransomware are a form of malware that is specified by on the internet frauds to require paying the ransom money by a target.

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Most of the situations, Win32/Kryptik.GBSO ransomware will certainly instruct its targets to start funds transfer for the function of counteracting the modifications that the Trojan infection has actually introduced to the sufferer’s tool.

Win32/Kryptik.GBSO Summary

These alterations 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 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;
  • Attempts to delete volume shadow copies;
  • 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!
  • Modifies boot configuration settings;
  • 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
  • Exhibits possible ransomware file modification behavior;
  • Writes a potential ransom message to disk;
  • Likely virus infection of existing system binary;
  • 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 victim’s hard disk drive — so the sufferer can no more make use of the data;
  • Preventing normal access 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.GBSO

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

  • By means of phishing e-mails;
  • As an effect of user ending up on a source that organizes a destructive software application;

As soon as the Trojan is effectively injected, it will certainly either cipher the information on the victim’s computer or avoid the device from operating in an appropriate manner – while likewise placing a ransom money note that states the need for the targets to impact the repayment for the function of decrypting the documents or recovering the file system back to the first condition. In most circumstances, the ransom money note will certainly show up when the customer reboots the COMPUTER after the system has actually currently been harmed.

Win32/Kryptik.GBSO circulation networks.

In different corners of the world, Win32/Kryptik.GBSO expands by jumps and bounds. Nevertheless, the ransom notes as well as methods of extorting the ransom amount may vary relying on particular neighborhood (local) settings. The ransom money notes and tricks of obtaining the ransom amount might differ depending on particular regional (regional) setups.

Ransomware injection

For instance:

    Faulty informs regarding unlicensed software.

    In specific areas, the Trojans frequently wrongfully report having discovered some unlicensed applications enabled on the target’s device. The alert then requires the individual to pay the ransom money.

    Faulty statements regarding unlawful material.

    In countries where software piracy is less prominent, this technique is not as reliable for the cyber fraudulences. Conversely, the Win32/Kryptik.GBSO popup alert might incorrectly claim to be deriving from a law enforcement institution and will certainly report having located child porn or other prohibited information on the gadget.

    Win32/Kryptik.GBSO popup alert may incorrectly claim to be acquiring from a regulation enforcement establishment and will report having situated kid porn or other illegal information on the tool. The alert will similarly contain a need for the customer to pay the ransom money.

Technical details

File Info:

crc32: B20F7122
md5: 91e03f1db5cecbf24f473fb128c352e4
name: 91E03F1DB5CECBF24F473FB128C352E4.mlw
sha1: a4b09698c27cb7d861af2be43b0c3d90b54387dc
sha256: 7ca0cff620cd5f459eb76c085be7db955f7c09e355f873d5ea793019b248910b
sha512: 8c2a44f2b243e885f143445ec2dcef4455fac04c44342e9b2fc17c8302384c501010d0972f722042f2345e9e4096a1bbe95f4042e5494e10f48d89970887dba0
ssdeep: 6144:0jlnNL/7xIEJvD2wWgcV+WDqhKP/5YeJVUPfjno8K/YEbl3Ay:olnNL/7pvD2wWgu+WDqAPhYe0Pzo8K/
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2017, dgkjndgl
InternalName: fgjhfghjfghj.exe
FileVersion: 1.0.0.1
ProductVersion: 1.0.0.1
Translation: 0x0809 0x04b0

Win32/Kryptik.GBSO also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.Common.1FB6D777
K7AntiVirus Trojan ( 0053305e1 )
Elastic malicious (high confidence)
DrWeb Trojan.MulDrop7.59395
Cynet Malicious (score: 100)
CAT-QuickHeal Trojan.Chapak.ZZ5
ALYac Trojan.BRMon.Gen.4
Cylance Unsafe
Zillya Trojan.Bitcovar.Win32.69
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_60% (D)
Alibaba Ransom:Win32/Bitcovar.15fbc28b
K7GW Trojan ( 0053305e1 )
Cybereason malicious.db5cec
Cyren W32/S-cab1c03c!Eldorado
Symantec Packed.Generic.525
ESET-NOD32 a variant of Win32/Kryptik.GBSO
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Trojan.Emotet-6437182-0
Kaspersky Trojan-Ransom.Win32.Bitcovar.ng
BitDefender Trojan.BRMon.Gen.4
NANO-Antivirus Trojan.Win32.Bitcovar.exbikm
MicroWorld-eScan Trojan.BRMon.Gen.4
Tencent Win32.Trojan.Generic.Hufg
Ad-Aware Trojan.BRMon.Gen.4
Sophos Mal/Generic-S + Mal/Ransom-FN
Comodo Malware@#2pwfvra56jcbs
BitDefenderTheta Gen:NN.ZexaF.34608.wu0@aC0If2hi
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_HPGANDCRAB.SMG2
McAfee-GW-Edition BehavesLike.Win32.Generic.fc
FireEye Generic.mg.91e03f1db5cecbf2
Emsisoft Trojan.BRMon.Gen.4 (B)
SentinelOne Static AI – Malicious PE
Webroot W32.Trojan.Gen
Avira HEUR/AGEN.1117310
eGambit Unsafe.AI_Score_64%
Microsoft Ransom:Win32/Betisrypt.D
Arcabit Trojan.BRMon.Gen.4
AegisLab Trojan.Win32.Bitcovar.j!c
GData Trojan.BRMon.Gen.4
TACHYON Ransom/W32.Bitcovar.365568.B
AhnLab-V3 Win-Trojan/MalPe34.Suspicious.X2029
Acronis suspicious
McAfee Artemis!91E03F1DB5CE
MAX malware (ai score=95)
VBA32 TrojanRansom.Bitcovar
Malwarebytes Trojan.MalPack
Panda Trj/Genetic.gen
TrendMicro-HouseCall Ransom_HPGANDCRAB.SMG2
Rising Malware.Obscure/Heur!1.9E03 (CLOUD)
Yandex Trojan.GenAsa!gf6dJuC8EC8
Ikarus Virus.Win32.Obfuscator
MaxSecure Ransomeware.CRAB.gen
Fortinet W32/GenKryptik.CNAR!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Generic.HwoCuIEA

How to remove Win32/Kryptik.GBSO 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.GBSO 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.GBSO 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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