Win32/Kryptik.GBCI

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

What is Win32/Kryptik.GBCI infection?

In this article you will locate regarding the meaning of Win32/Kryptik.GBCI and also its adverse effect on your computer system. Such ransomware are a form of malware that is clarified by online fraudulences to demand paying the ransom by a sufferer.

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In the majority of the situations, Win32/Kryptik.GBCI ransomware will advise its sufferers to launch funds move for the purpose of counteracting the modifications that the Trojan infection has presented to the sufferer’s gadget.

Win32/Kryptik.GBCI 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);
  • 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.
  • Mimics the system’s user agent string for its own requests;
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic;
  • 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;
  • 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 copy of itself;
  • 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.
  • Ciphering the files located on the sufferer’s hard drive — so the target can no more use the data;
  • Preventing routine 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.
Similar behavior
Related domains
bon.aungercote.org Ransom_HPGANDCRAB.SMG2

Win32/Kryptik.GBCI

The most regular channels where Win32/Kryptik.GBCI Ransomware Trojans are infused are:

  • By means of phishing emails;
  • As an effect of user ending up on a source that organizes a harmful software program;

As soon as the Trojan is effectively infused, it will certainly either cipher the data on the sufferer’s PC or avoid the tool from functioning in a correct fashion – while also placing a ransom money note that discusses the demand for the targets to effect the repayment for the purpose of decrypting the records or recovering the file system back to the preliminary problem. In most circumstances, the ransom money note will show up when the customer reboots the COMPUTER after the system has actually currently been damaged.

Win32/Kryptik.GBCI circulation channels.

In different edges of the world, Win32/Kryptik.GBCI expands by leaps as well as bounds. However, the ransom notes and also tricks of obtaining the ransom amount might differ relying on certain neighborhood (local) setups. The ransom notes and tricks of obtaining the ransom money amount might vary depending on particular regional (regional) setups.

Ransomware injection

As an example:

    Faulty signals regarding unlicensed software program.

    In particular locations, the Trojans commonly wrongfully report having identified some unlicensed applications made it possible for on the sufferer’s gadget. The sharp after that demands the user to pay the ransom money.

    Faulty declarations about illegal web content.

    In countries where software application piracy is much less prominent, this technique is not as reliable for the cyber frauds. Conversely, the Win32/Kryptik.GBCI popup alert might incorrectly assert to be deriving from a law enforcement establishment and also will certainly report having located kid porn or other unlawful information on the tool.

    Win32/Kryptik.GBCI popup alert may incorrectly assert to be obtaining from a law enforcement establishment and also will certainly report having situated kid pornography or various other unlawful data on the device. The alert will in a similar way include a requirement for the customer to pay the ransom.

Technical details

File Info:

crc32: 96A6C6FD
md5: 4a557b981ce480c32095ec7f78601268
name: 4A557B981CE480C32095EC7F78601268.mlw
sha1: a84f29936964cc17ba44e791d27b106a2856002c
sha256: 4eba9e0fb55de738656ba36708030b4eb2638e78666cb96d988f681b10757365
sha512: 7ade1098c2752f797b0492aa32ea1756f6d9295d65131f381a692078ce7a731d1e02ae0cec075d053967442c58accfdf630c4d2bc1e2bb47a83cf6310fd9b3cf
ssdeep: 6144:Ng+ie1QmZuHja2djwIK07mslC8feaEI0BXx:Ng5e7cHWIwQ1OaEI0h
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2017
FileVersion: 1.0.0.1
ProductVersion: 1.0.0.1
Translation: 0x0809 0x04b0

Win32/Kryptik.GBCI also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
DrWeb Trojan.MulDrop7.56708
MicroWorld-eScan Trojan.BRMon.Gen.3
FireEye Generic.mg.4a557b981ce480c3
CAT-QuickHeal Trojan.Chapak.ZZ5
ALYac Trojan.BRMon.Gen.3
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 0053305e1 )
BitDefender Trojan.BRMon.Gen.3
K7GW Trojan ( 0053305e1 )
CrowdStrike win/malicious_confidence_100% (D)
BitDefenderTheta Gen:NN.ZexaF.34590.tu0@aigIjbki
Symantec Packed.Generic.525
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Packer.Crypter-6539596-1
Kaspersky HEUR:Trojan.Win32.Generic
NANO-Antivirus Trojan.Win32.GenKryptik.ewnwsv
ViRobot Trojan.Win32.U.GlobeImposter.236032
AegisLab Trojan.Win32.Purgen.tpFs
Rising Malware.Obscure/Heur!1.A89E (CLOUD)
Ad-Aware Trojan.BRMon.Gen.3
Sophos Mal/Generic-S
Comodo Malware@#vvz6s3qfp3tb
F-Secure Heuristic.HEUR/AGEN.1102735
Zillya Trojan.Crypmod.Win32.478
TrendMicro Ransom_HPGANDCRAB.SMG2
McAfee-GW-Edition BehavesLike.Win32.Generic.fc
Emsisoft Trojan.Crypt (A)
Ikarus Trojan.Win32.Ranumbot
Jiangmin Trojan.Scar.laj
eGambit Unsafe.AI_Score_99%
Avira HEUR/AGEN.1102735
MAX malware (ai score=100)
Antiy-AVL Trojan/Win32.Inject
Microsoft Ransom:Win32/Gandcrab.SF!MTB
Arcabit Trojan.BRMon.Gen.3
SUPERAntiSpyware Trojan.Agent/Gen-Malagent
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Trojan.BRMon.Gen.3
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.RansomCrypt.R220586
Acronis suspicious
McAfee Trojan-FOSS!4A557B981CE4
VBA32 Trojan.Inject
Malwarebytes Trojan.MalPack
Panda Trj/Genetic.gen
ESET-NOD32 a variant of Win32/Kryptik.GBCI
TrendMicro-HouseCall Ransom_HPGANDCRAB.SMG2
Tencent Malware.Win32.Gencirc.10ba60a2
Yandex Trojan.GenAsa!dXmrEMj63jM
SentinelOne Static AI – Malicious PE
MaxSecure Ransomeware.CRAB.gen
Fortinet W32/Kryptik.GBFP!tr
Webroot W32.Trojan.Gen
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Trojan.d2b

How to remove Win32/Kryptik.GBCI virus?

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.GBCI 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.GBCI 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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