MSIL/Zyklon.C

What is MSIL/Zyklon.C infection?

In this short article you will certainly locate concerning the interpretation of MSIL/Zyklon.C and its unfavorable effect on your computer system. Such ransomware are a kind of malware that is specified by on-line scams to require paying the ransom by a target.

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In the majority of the cases, MSIL/Zyklon.C ransomware will certainly advise its victims to initiate funds transfer for the function of reducing the effects of the amendments that the Trojan infection has actually presented to the sufferer’s tool.

MSIL/Zyklon.C Summary

These modifications can be as complies with:

  • Injection (inter-process);
  • 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 attempted to delay the analysis task.;
  • 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 remove evidence of file being downloaded from the Internet;
  • 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!
  • A potential decoy document was displayed to the user;
  • Checks the version of Bios, possibly for anti-virtualization;
  • Checks the CPU name from registry, possibly for anti-virtualization;
  • Harvests information related to installed mail clients;
  • Attempts to interact with an Alternate Data Stream (ADS);
  • 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 files found on the target’s disk drive — so the sufferer can no longer use the information;
  • Preventing normal accessibility to the sufferer’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/Zyklon.C

One of the most normal networks where MSIL/Zyklon.C Ransomware Trojans are infused are:

  • By means of phishing e-mails;
  • As a repercussion of customer ending up on a resource that organizes a harmful software application;

As quickly as the Trojan is efficiently injected, it will certainly either cipher the data on the target’s PC or avoid the gadget from working in an appropriate fashion – while likewise positioning a ransom note that states the need for the sufferers to effect the repayment for the purpose of decrypting the files or bring back the data system back to the first condition. In a lot of circumstances, the ransom note will certainly turn up when the customer reboots the COMPUTER after the system has actually already been damaged.

MSIL/Zyklon.C distribution networks.

In different corners of the globe, MSIL/Zyklon.C expands by jumps and bounds. Nevertheless, the ransom money notes and tricks of obtaining the ransom amount may vary depending on certain local (regional) setups. The ransom money notes and methods of obtaining the ransom money quantity may differ depending on particular local (regional) setups.

Ransomware injection

As an example:

    Faulty alerts regarding unlicensed software.

    In specific areas, the Trojans usually wrongfully report having identified some unlicensed applications allowed on the victim’s device. The sharp then demands the individual to pay the ransom money.

    Faulty declarations concerning prohibited material.

    In countries where software piracy is much less prominent, this approach is not as effective for the cyber scams. Alternatively, the MSIL/Zyklon.C popup alert may wrongly declare to be deriving from a police establishment and will report having situated youngster pornography or other prohibited information on the device.

    MSIL/Zyklon.C popup alert might wrongly assert to be obtaining from a legislation enforcement organization as well as will report having situated child pornography or other illegal information on the device. The alert will similarly contain a need for the user to pay the ransom money.

Technical details

File Info:

crc32: 226BB079
md5: 816f3c70c2af409fe9a9d502846b9e9b
name: 816F3C70C2AF409FE9A9D502846B9E9B.mlw
sha1: 83517c4eb94af1f3df3acd4b648227e722422d12
sha256: 89fa1ff7cda01cb4c26d2b666f8dbeaea1d3c3674fe7217c12f4912cb39b0187
sha512: 39f4b94e227cb1a8c95bed367dd668b6f5ca8164d9fa0755d2441b39205e408bd8c340afa741d19a8d2685eaf1cb547b3a507047235d9b77c713f7e68955414b
ssdeep: 24576:RGPKTD4IVUz6aAAjT1hzO2frkFRsED7mrcQqVuarrADBZLNh3zoVPyOYIYmM84Y:dTDfVUGJOTrizLsED7mrLqVuanUF0Px
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

MSIL/Zyklon.C also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 005136f31 )
Elastic malicious (high confidence)
DrWeb Trojan.WebPick.10191
Cynet Malicious (score: 100)
ALYac Gen:Heur.Mint.Zard.39
Zillya Trojan.Zyklon.Win32.25
Sangfor Trojan.Win32.Save.a
K7GW Trojan ( 005136f31 )
Cybereason malicious.0c2af4
Symantec ML.Attribute.HighConfidence
ESET-NOD32 MSIL/Zyklon.C
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.Win32.Blocker.ljez
BitDefender Gen:Heur.Mint.Zard.39
NANO-Antivirus Trojan.Win32.Invader.esaydo
MicroWorld-eScan Gen:Heur.Mint.Zard.39
Tencent Malware.Win32.Gencirc.11492522
Ad-Aware Gen:Heur.Mint.Zard.39
Sophos Mal/Generic-S
BitDefenderTheta AI:Packer.996B0B431E
McAfee-GW-Edition BehavesLike.Win32.Generic.tc
FireEye Generic.mg.816f3c70c2af409f
Emsisoft Gen:Heur.Mint.Zard.39 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Generic.bqppz
Avira HEUR/AGEN.1123416
Microsoft Trojan:Win32/DorkBot.DU
GData Gen:Heur.Mint.Zard.39
AhnLab-V3 Trojan/Win32.Inject.C2099803
Acronis suspicious
McAfee Artemis!816F3C70C2AF
MAX malware (ai score=98)
VBA32 BScope.Trojan-Dropper.Injector
Panda Trj/GdSda.A
Rising Ransom.Blocker!8.12A (RDMK:cmRtazoBKblsAZCMqMLtQCZWxwHC)
Yandex Trojan.Invader!VK/nbtciRdU
Fortinet W32/Kryptik.T!tr
AVG Win32:Malware-gen

How to remove MSIL/Zyklon.C 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 MSIL/Zyklon.C 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/Zyklon.C 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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