Win32/Kryptik.OZI

What is Win32/Kryptik.OZI infection?

In this post you will find regarding the interpretation of Win32/Kryptik.OZI and also its negative impact on your computer. Such ransomware are a kind of malware that is elaborated by on-line scams to require paying the ransom money by a sufferer.

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In the majority of the cases, Win32/Kryptik.OZI ransomware will advise its victims to initiate funds move for the function of counteracting the changes that the Trojan infection has presented to the victim’s tool.

Win32/Kryptik.OZI 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.
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • The executable is compressed using UPX;
  • Deletes its original binary from disk;
  • 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;
  • Ciphering the documents located on the sufferer’s hard disk — so the target can no more utilize the data;
  • Preventing regular access 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.

Win32/Kryptik.OZI

One of the most common channels where Win32/Kryptik.OZI Trojans are injected are:

  • By ways of phishing emails;
  • As a consequence of customer 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 information on the victim’s PC or avoid the gadget from functioning in a correct manner – while likewise placing a ransom money note that mentions the need for the sufferers to impact the payment for the function of decrypting the files or bring back the file system back to the preliminary problem. In the majority of instances, the ransom money note will certainly show up when the customer reboots the PC after the system has currently been damaged.

Win32/Kryptik.OZI circulation networks.

In various corners of the world, Win32/Kryptik.OZI grows by jumps and also bounds. However, the ransom notes and tricks of extorting the ransom amount may differ depending upon certain local (regional) setups. The ransom money notes as well as techniques of obtaining the ransom amount might differ depending on certain local (local) settings.

Ransomware injection

For example:

    Faulty alerts about unlicensed software.

    In certain areas, the Trojans usually wrongfully report having detected some unlicensed applications enabled on the sufferer’s device. The sharp after that demands the customer to pay the ransom money.

    Faulty declarations about unlawful content.

    In countries where software piracy is much less preferred, this technique is not as effective for the cyber fraudulences. Conversely, the Win32/Kryptik.OZI popup alert might wrongly claim to be deriving from a law enforcement establishment as well as will report having located youngster pornography or other illegal information on the gadget.

    Win32/Kryptik.OZI popup alert might wrongly claim to be deriving from a law enforcement organization and also will certainly report having situated kid porn or various other prohibited information on the tool. The alert will in a similar way include a need for the individual to pay the ransom money.

Technical details

File Info:

crc32: 203A17C2
md5: e4679cf962c8352ccd550ea50f2bb5c9
name: E4679CF962C8352CCD550EA50F2BB5C9.mlw
sha1: 88e36c29d3bcdbfecd373f7968871e498dbac60b
sha256: 88ff5d9da7b748f0e5c2ce86343ccd2bd120fdf79f52eb298931cccc04a5ad17
sha512: e854274f2a6210206cdf366815407221b0afcabecb1b0ea8ce31041a5852e379f0aa810e85dce71fa7cbebace92e8f0736d41c991a0749ae7e8dc79531dd8547
ssdeep: 768:/Vk2i13gCi0a2DbQldg2gYAeGeaX8nJHleFAWXnC:/6RwCiIKSBeGnXscAW3
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

LegalCopyright: Copyright xa9 OHR QHH 2004-2009
JGiagq2: 2dMt3phBqU
InternalName: Spaqqph
FileVersion: 457
F26I1: s5QqrcBGR
CompanyName: SQY SOFTWIN JP
2UnGS: py66D3DF
TgJUd7: pGPSiHb
Irrgv: JvkOdi
8wFBP: sHC1OlT
oe6OMsj: knmvfr
ProductName: Spaqqph
MtlOrR: J3Tes3
HNW1Pv: kGkg3y
ProductVersion: 1.5
FileDescription: Spaqqph Heqsjaopgd Lwucx
1sI44DwVwM: 2nNup4U54P
eV7Lw: 44lInJK
OriginalFilename: VTT.exe
7sXqNoB: CNBjlMRac
Translation: 0x0409 0x04b0

Win32/Kryptik.OZI also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( f1000f011 )
Elastic malicious (high confidence)
DrWeb Trojan.Winlock.3445
Cynet Malicious (score: 100)
ALYac Gen:Variant.Kazy.25456
Cylance Unsafe
Zillya Trojan.PornoAsset.Win32.189
CrowdStrike win/malicious_confidence_70% (D)
Alibaba Ransom:Win32/PornoAsset.24b7780d
K7GW Trojan ( f1000f011 )
Cybereason malicious.962c83
Cyren W32/Shiz.C.gen!Eldorado
Symantec Trojan.Ransomlock!gen4
ESET-NOD32 a variant of Win32/Kryptik.OZI
APEX Malicious
Avast FileRepMalware
ClamAV Win.Trojan.Pornoasset-605
Kaspersky Trojan-Ransom.Win32.PornoAsset.qy
BitDefender Gen:Variant.Kazy.25456
NANO-Antivirus Trojan.Win32.PornoAsset.doajo
MicroWorld-eScan Gen:Variant.Kazy.25456
Tencent Win32.Trojan.Pornoasset.Ajbj
Ad-Aware Gen:Variant.Kazy.25456
Sophos Mal/EncPk-AAY
Comodo Malware@#2nznutrfvq2yb
BitDefenderTheta Gen:NN.ZexaF.34670.bmKfaewZw!gi
VIPRE Trojan.Win32.Zbot.xmp (v)
McAfee-GW-Edition W32/Pinkslipbot.gen.as
FireEye Generic.mg.e4679cf962c8352c
Emsisoft Gen:Variant.Kazy.25456 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan/PornoAsset.cub
Webroot W32.Malware.Gen
Avira TR/Crypt.EPACK.Gen2
eGambit Generic.Malware
Microsoft Trojan:Win32/Sisron
GData Gen:Variant.Kazy.25456
McAfee Artemis!E4679CF962C8
MAX malware (ai score=100)
VBA32 Hoax.PornoAsset
Malwarebytes Malware.Heuristic.1003
Panda Bck/Qbot.AO
Rising Ransom.Trasbind!8.292E (CLOUD)
Ikarus Trojan-Ransom.PornoAsset
Fortinet W32/Yakes.B!tr
AVG FileRepMalware
Paloalto generic.ml
Qihoo-360 Win32/Ransom.PornoAsset.HwsBEpsA

How to remove Win32/Kryptik.OZI 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.OZI 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.OZI 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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