MSIL/Kryptik.QDL

What is MSIL/Kryptik.QDL infection?

In this short article you will certainly find concerning the interpretation of MSIL/Kryptik.QDL as well as its unfavorable impact on your computer. Such ransomware are a form of malware that is specified by on-line fraudulences to demand paying the ransom money by a target.

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Most of the instances, MSIL/Kryptik.QDL virus will certainly advise its targets to initiate funds move for the objective of reducing the effects of the changes that the Trojan infection has presented to the target’s gadget.

MSIL/Kryptik.QDL 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 (Process Hollowing);
  • Injection with CreateRemoteThread in a remote process;
  • 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;
  • 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.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Code injection with CreateRemoteThread in a remote process;
  • Sniffs keystrokes;
  • 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 hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
  • Likely virus infection of existing system binary;
  • Creates known SpyNet mutexes and/or registry changes.;
  • Ciphering the records found on the victim’s hard disk — so the target can no more use the data;
  • Preventing routine accessibility 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.

MSIL/Kryptik.QDL

The most normal channels whereby MSIL/Kryptik.QDL Ransomware Trojans are infused are:

  • By ways of phishing e-mails;
  • As a repercussion of user winding up on a source that hosts a harmful software application;

As quickly as the Trojan is successfully injected, it will either cipher the information on the sufferer’s PC or protect against the gadget from functioning in a correct way – while additionally putting a ransom note that points out the demand for the targets to impact the repayment for the function of decrypting the documents or recovering the documents system back to the first condition. In the majority of circumstances, the ransom money note will certainly turn up when the client restarts the PC after the system has actually currently been damaged.

MSIL/Kryptik.QDL circulation networks.

In different edges of the world, MSIL/Kryptik.QDL expands by leaps and bounds. Nevertheless, the ransom money notes and tricks of extorting the ransom quantity may vary relying on specific neighborhood (regional) setups. The ransom money notes as well as techniques of extorting the ransom quantity might differ depending on particular local (local) setups.

Ransomware injection

As an example:

    Faulty signals regarding unlicensed software.

    In certain locations, the Trojans typically wrongfully report having found some unlicensed applications allowed on the target’s device. The sharp after that requires the customer to pay the ransom.

    Faulty declarations concerning unlawful web content.

    In countries where software piracy is much less preferred, this method is not as effective for the cyber scams. Alternatively, the MSIL/Kryptik.QDL popup alert may incorrectly claim to be deriving from a police establishment and also will certainly report having located youngster pornography or other unlawful information on the gadget.

    MSIL/Kryptik.QDL popup alert might wrongly claim to be deriving from a legislation enforcement establishment and also will report having situated youngster porn or other illegal data on the device. The alert will likewise have a demand for the user to pay the ransom.

Technical details

File Info:

crc32: BC74781C
md5: d722ebba8865cf620278627bc97b2807
name: D722EBBA8865CF620278627BC97B2807.mlw
sha1: 7dfdb6e07f574754f3b337de5436708a2ffe5f6b
sha256: 0d940c4afd9200da948a13fa2fbb87ab256c1b185b41d6aaa15e1baa7fe68daf
sha512: a83a9cc737571e993443eaf390473d01efb27d83c0335852182760816240fbe9928d2cb3c408c10b4c525e0591f268d9f51f1a45b97aa10838a8ad9643b6253f
ssdeep: 12288:Xq86U38e3rx8d+LhfJ7VvuMLt4z3hN7Up8O7E:686Useb+dUZhVWI4LhNApz7
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: Copyright xa9 2001
Assembly Version: 32.52.64.56
InternalName: 122.EXE
FileVersion: 83.66.24.68
Comments: WindowsApplication1
ProductName: WindowsApplication1
ProductVersion: 83.66.24.68
FileDescription: WindowsApplication1
OriginalFilename: 122.EXE

MSIL/Kryptik.QDL also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 005410521 )
Elastic malicious (high confidence)
DrWeb Trojan.PWS.Stealer.15250
Cynet Malicious (score: 100)
ALYac Gen:Variant.MSILHeracles.14387
Cylance Unsafe
Zillya Trojan.Blocker.Win32.41217
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Trojan:MSIL/Kryptik.146d8cd6
K7GW Trojan ( 005410521 )
Cybereason malicious.a8865c
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of MSIL/Kryptik.QDL
APEX Malicious
Avast Win32:Malware-gen
Kaspersky HEUR:Trojan-Ransom.MSIL.Blocker.gen
BitDefender Gen:Variant.MSILHeracles.14387
NANO-Antivirus Trojan.Win32.Ransom.fkgepi
MicroWorld-eScan Gen:Variant.MSILHeracles.14387
Tencent Msil.Trojan.Blocker.Wpss
Ad-Aware Gen:Variant.MSILHeracles.14387
Sophos Mal/Generic-S
Comodo Malware@#34g6wcu971emx
BitDefenderTheta Gen:NN.ZemsilF.34670.Iq0@aWDkaPh
McAfee-GW-Edition BehavesLike.Win32.Generic.hc
FireEye Generic.mg.d722ebba8865cf62
Emsisoft Gen:Variant.MSILHeracles.14387 (B)
SentinelOne Static AI – Malicious PE
Avira TR/Dropper.MSIL.Gen
eGambit Unsafe.AI_Score_100%
Microsoft Worm:Win32/Rebhip
Arcabit Trojan.MSILHeracles.D3833
AegisLab Trojan.MSIL.Blocker.4!c
GData Gen:Variant.MSILHeracles.14387
AhnLab-V3 Trojan/Win32.Gen
McAfee Artemis!D722EBBA8865
MAX malware (ai score=97)
VBA32 CIL.StupidPInvoker-2.Heur
Malwarebytes MachineLearning/Anomalous.96%
Panda Trj/GdSda.A
Rising Trojan.Kryptik!8.8 (CLOUD)
Yandex Trojan.Kryptik!mBE3CNdwy+Y
Ikarus Worm.Win32.Rebhip
Fortinet MSIL/Kryptik.QDL!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Blocker.HwMAEpsA

How to remove MSIL/Kryptik.QDL 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 MSIL/Kryptik.QDL 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 MSIL/Kryptik.QDL 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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