Win32/Kryptik.OHM

What is Win32/Kryptik.OHM infection?

In this article you will discover about the meaning of Win32/Kryptik.OHM and also its negative impact on your computer system. Such ransomware are a form of malware that is elaborated by online scams to demand paying the ransom by a target.

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In the majority of the instances, Win32/Kryptik.OHM infection will certainly instruct its sufferers to start funds move for the purpose of reducing the effects of the modifications that the Trojan infection has presented to the victim’s tool.

Win32/Kryptik.OHM 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.
  • 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.
  • 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.

  • Unconventionial language used in binary resources: Russian;
  • Uses Windows utilities for basic functionality;
  • 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 found on the target’s hard disk — so the target can no longer make use of the information;
  • Preventing routine 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.OHM

One of the most common channels whereby Win32/Kryptik.OHM are infused are:

  • By methods of phishing emails;
  • As an effect of user ending up on a resource that holds a harmful software program;

As soon as the Trojan is effectively injected, it will either cipher the data on the sufferer’s PC or avoid the gadget from operating in a proper way – while also putting a ransom money note that states the demand for the sufferers to effect the payment for the objective of decrypting the files or restoring the file system back to the first condition. In the majority of instances, the ransom note will certainly come up when the customer reboots the PC after the system has actually already been damaged.

Win32/Kryptik.OHM distribution channels.

In various corners of the world, Win32/Kryptik.OHM grows by jumps as well as bounds. Nonetheless, the ransom money notes and methods of extorting the ransom amount may vary relying on particular neighborhood (local) settings. The ransom money notes and methods of extorting the ransom money quantity might differ depending on particular local (local) settings.

Ransomware injection

As an example:

    Faulty alerts about unlicensed software.

    In specific areas, the Trojans typically wrongfully report having spotted some unlicensed applications allowed on the victim’s device. The alert then demands the individual to pay the ransom.

    Faulty declarations about unlawful material.

    In countries where software program piracy is much less prominent, this technique is not as reliable for the cyber fraudulences. Conversely, the Win32/Kryptik.OHM popup alert might falsely claim to be stemming from a law enforcement institution and will certainly report having situated child pornography or other prohibited information on the device.

    Win32/Kryptik.OHM popup alert might incorrectly claim to be deriving from a legislation enforcement establishment and also will report having located child porn or other prohibited information on the device. The alert will similarly contain a requirement for the user to pay the ransom money.

Technical details

File Info:

crc32: EBCA6B83
md5: 83f3425e5895fa4c53c7beb18c3fb64b
name: 83F3425E5895FA4C53C7BEB18C3FB64B.mlw
sha1: 1816af1f310282f1fc24625f98a21ffd2b1cd0df
sha256: 7d4712d4201296872addcf0ba3eb01406e2dda59f5794be60ff2ea69a5ec281b
sha512: aa769459fb28dfa921cd203bda5622219cb79d3f3f8f4017040c3dd1d576fc147c8cf29567934e27de97d344f31373326f61e5654bb081f726c41f3b1102936b
ssdeep: 1536:O509QdxbQeNMOrvqAnj40vFwqY325A5xkE5W5qXX5AHhoNbZgufo:dQdlrryA03rxVW5qnuHWjXo
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2010
InternalName: UIScanner
FileVersion: 13,0,21,1
CompanyName: BitDefender S.R.L.
ProductName: BitDefender 2010
ProductVersion: 13,0,18,344
FileDescription: BitDefender Antivirus Scanner
OriginalFilename: uiscan.exe
Translation: 0x0409 0x04b0

Win32/Kryptik.OHM also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 0056ea461 )
Cynet Malicious (score: 100)
ALYac Gen:Heur.FKP.1
Cylance Unsafe
Zillya Trojan.Timer.Win32.32
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_70% (D)
Alibaba Ransom:Win32/Genasom.847023d9
K7GW Trojan ( 0056ea461 )
Cybereason malicious.e5895f
Cyren W32/Ransom.J.gen!Eldorado
Symantec Trojan.Ransomlock!gen2
ESET-NOD32 a variant of Win32/Kryptik.OHM
APEX Malicious
Avast Win32:Mystic
ClamAV Win.Trojan.Ransom-7831
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Heur.FKP.1
NANO-Antivirus Trojan.Win32.Timer.dngij
SUPERAntiSpyware Trojan.Agent/Gen-FakeAV
MicroWorld-eScan Gen:Heur.FKP.1
Tencent Win32.Trojan.Generic.Eckh
Ad-Aware Gen:Heur.FKP.1
Sophos Mal/Generic-S
Comodo Malware@#3bilh00c9va6i
DrWeb Trojan.Winlock.3523
VIPRE Trojan.Win32.Ransom.do (v)
TrendMicro TROJ_FAKEAV.SMWR
McAfee-GW-Edition FakeAV-SecurityTool.js
Emsisoft Gen:Heur.FKP.1 (B)
SentinelOne Static AI – Malicious PE
Avira TR/Crypt.ZPACK.Gen
Antiy-AVL Trojan/Win32.AGeneric
Microsoft Ransom:Win32/Genasom.DN
Arcabit Trojan.FKP.1
AegisLab Trojan.Win32.Timer.j!c
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Gen:Heur.FKP.1
TACHYON Trojan/W32.Timer.95744
AhnLab-V3 Trojan/Win32.FakeAV.R5556
McAfee FakeAV-SecurityTool.js
MAX malware (ai score=100)
VBA32 Trojan.ExpProc.014
Panda Generic Malware
TrendMicro-HouseCall TROJ_FAKEAV.SMWR
Rising Trojan.Bulta!8.35D (CLOUD)
Ikarus Trojan.Win32.Ransom
MaxSecure Trojan.Yakes.dwnc
Fortinet W32/BrowHost.KP!tr
AVG Win32:Mystic
Paloalto generic.ml
Qihoo-360 Win32/Trojan.74e

How to remove Win32/Kryptik.OHM 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 Win32/Kryptik.OHM 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.OHM 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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