Win32/Kryptik.GISL

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

What is Win32/Kryptik.GISL infection?

In this short article you will certainly locate about the definition of Win32/Kryptik.GISL and its unfavorable impact on your computer system. Such ransomware are a type of malware that is elaborated by on the internet fraudulences to demand paying the ransom by a sufferer.

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Most of the situations, Win32/Kryptik.GISL virus will instruct its targets to initiate funds transfer for the function of reducing the effects of the amendments that the Trojan infection has introduced to the victim’s tool.

Win32/Kryptik.GISL 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.
  • Injection (inter-process);
  • Injection with CreateRemoteThread in a remote process;
  • Mimics the system’s user agent string for its own requests;
  • 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;
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • Unconventionial language used in binary resources: Estonian;
  • 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;
  • Detects Sandboxie through the presence of a library;
  • Detects the presence of Wine emulator via function name;
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
  • 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
  • Attempts to identify installed analysis tools by a known file location;
  • Checks for the presence of known devices from debuggers and forensic tools;
  • Detects the presence of Wine emulator via registry key;
  • Detects Sandboxie using a known mutex;
  • Creates a copy of itself;
  • Checks for a known DeepFreeze Frozen State Mutex;
  • 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.
  • Ciphering the papers found on the sufferer’s hard disk drive — so the target can no longer utilize 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.GISL

The most common networks whereby Win32/Kryptik.GISL are infused are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As a consequence of user winding up on a source that hosts a malicious software application;

As quickly as the Trojan is effectively infused, it will certainly either cipher the data on the sufferer’s PC or protect against the device from operating in a proper way – while also putting a ransom money note that points out the demand for the victims to impact the settlement for the objective of decrypting the files or recovering the file system back to the first problem. In a lot of instances, the ransom money note will certainly turn up when the customer restarts the COMPUTER after the system has actually currently been damaged.

Win32/Kryptik.GISL distribution channels.

In numerous corners of the globe, Win32/Kryptik.GISL expands by jumps and bounds. Nevertheless, the ransom money notes and also methods of extorting the ransom money amount may differ relying on specific local (regional) setups. The ransom money notes and also methods of obtaining the ransom money amount may differ depending on particular local (regional) setups.

Ransomware injection

For instance:

    Faulty notifies regarding unlicensed software application.

    In certain locations, the Trojans typically wrongfully report having actually found some unlicensed applications enabled on the victim’s tool. The alert after that demands the user to pay the ransom.

    Faulty declarations concerning prohibited content.

    In nations where software application piracy is much less popular, this technique is not as efficient for the cyber fraudulences. Additionally, the Win32/Kryptik.GISL popup alert may falsely claim to be deriving from a law enforcement organization and will report having situated youngster porn or other unlawful information on the gadget.

    Win32/Kryptik.GISL popup alert may incorrectly declare to be acquiring from a law enforcement organization and also will certainly report having situated child porn or various other unlawful data on the device. The alert will in a similar way include a demand for the user to pay the ransom money.

Technical details

File Info:

crc32: 16014F75
md5: 45d1ab47dbed93e785d57cc9041a52d4
name: 45D1AB47DBED93E785D57CC9041A52D4.mlw
sha1: 04a3755a43e0dd19963caf6ca48f0ad0fa73e019
sha256: 7bcb6d4314431c27273fcc1cad0e629aabbf02e701865cf548bc2dc4e68a6a60
sha512: a7307101954a4942750d7fe6245fb964a5a0a0512cc042a19854ee5f0e4db2edfe8940acf728751acb425f9212960fd3e6dff072cc252a10f2a690eadf82370b
ssdeep: 3072:ifaJR5He/KsUUqQN+DIlWMl123YzlFty1o+y4j98p+yZoyl+xpfEAD:5Hx7xQNHqY5RKmp+yyHxpfEAD
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

ProductVersion: 3.7.9

Win32/Kryptik.GISL also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
Elasticmalicious (high confidence)
DrWebTrojan.PWS.Panda.13495
CynetMalicious (score: 100)
CAT-QuickHealTrojan.Emotet.NI5
ALYacTrojan.Mint.Jamg.C
CylanceUnsafe
ZillyaTrojan.Generic.Win32.300683
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (D)
AlibabaTrojan:Win32/Kryptik.cece3ce7
K7GWTrojan ( 00543e471 )
K7AntiVirusTrojan ( 00543e471 )
CyrenW32/S-38342d72!Eldorado
SymantecPacked.Generic.525
ESET-NOD32a variant of Win32/Kryptik.GISL
ZonerTrojan.Win32.69623
APEXMalicious
AvastFileRepMalware
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderTrojan.Mint.Jamg.C
NANO-AntivirusTrojan.Win32.Panda.ffejbv
ViRobotTrojan.Win32.U.GandCrab.259584.A
SUPERAntiSpywareTrojan.Agent/Gen-Kryptik
MicroWorld-eScanTrojan.Mint.Jamg.C
TencentWin32.Trojan.Generic.Pept
Ad-AwareTrojan.Mint.Jamg.C
SophosMal/Generic-S + Mal/GandCrab-B
ComodoTrojWare.Win32.Cloxer.FH@7qp6cw
F-SecureHeuristic.HEUR/AGEN.1106533
BitDefenderThetaGen:NN.ZexaF.34608.qu0@aO7nSdbI
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom_GANDCRAB.SMALY-3
McAfee-GW-EditionBehavesLike.Win32.Generic.dc
FireEyeGeneric.mg.45d1ab47dbed93e7
EmsisoftTrojan.Mint.Jamg.C (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan.GandCrypt.gx
AviraHEUR/AGEN.1106533
eGambitUnsafe.AI_Score_99%
Antiy-AVLTrojan/Win32.Chapak
MicrosoftTrojan:Win32/Gandcrab.AF
ArcabitTrojan.Mint.Jamg.C
AegisLabTrojan.Win32.Generic.4!c
ZoneAlarmHEUR:Trojan.Win32.Generic
GDataTrojan.Mint.Jamg.C
AhnLab-V3Win-Trojan/Gandcrab04.Exp
Acronissuspicious
McAfeeGenericRXGC-SA!45D1AB47DBED
MAXmalware (ai score=97)
VBA32BScope.Trojan.Vigorf
MalwarebytesTrojan.MalPack
PandaTrj/Genetic.gen
TrendMicro-HouseCallRansom_GANDCRAB.SMALY-3
RisingRansom.GandCrypt!8.F33E (TFE:dGZlOgV5G4lDPrDs7g)
YandexTrojan.GenAsa!RCFGvHhIWt4
IkarusTrojan.Win32.Danabot
FortinetW32/Kryptik.GUKZ!tr
AVGFileRepMalware
Paloaltogeneric.ml
Qihoo-360HEUR/QVM10.2.9267.Malware.Gen

How to remove Win32/Kryptik.GISL 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.GISL 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.GISL 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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