Win32/Kryptik.DOTO

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

What is Win32/Kryptik.DOTO infection?

In this post you will certainly discover about the meaning of Win32/Kryptik.DOTO as well as its adverse influence on your computer system. Such ransomware are a form of malware that is elaborated by on-line fraudulences to demand paying the ransom by a target.

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In the majority of the cases, Win32/Kryptik.DOTO infection will certainly instruct its sufferers to start funds move for the function of neutralizing the amendments that the Trojan infection has presented to the sufferer’s tool.

Win32/Kryptik.DOTO 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.
  • A process attempted to delay the analysis task.;
  • A process created a hidden window;
  • 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;
  • Uses Windows utilities for basic functionality;
  • Attempts to modify desktop wallpaper;
  • Exhibits behavior characteristic of Cerber ransomware;
  • Attempts to execute a binary from a dead or sinkholed URL;
  • Exhibits possible ransomware file modification behavior;
  • Writes a potential ransom message to disk;
  • 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.
  • Attempts to access Bitcoin/ALTCoin wallets;
  • 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.
  • Ciphering the documents located on the target’s hard disk drive — so the target can no longer make use of 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.

Win32/Kryptik.DOTO

One of the most common networks whereby Win32/Kryptik.DOTO Ransomware Trojans are injected are:

  • By means of phishing e-mails;
  • As a consequence of customer winding up on a resource that hosts a destructive software program;

As soon as the Trojan is successfully injected, it will certainly either cipher the data on the target’s PC or protect against the gadget from working in a proper manner – while also positioning a ransom note that mentions the demand for the victims to effect the settlement for the objective of decrypting the files or recovering the documents system back to the initial condition. In most instances, the ransom note will show up when the customer reboots the COMPUTER after the system has already been harmed.

Win32/Kryptik.DOTO circulation channels.

In different corners of the world, Win32/Kryptik.DOTO grows by leaps and also bounds. Nevertheless, the ransom notes and also techniques of obtaining the ransom money quantity might differ relying on certain regional (local) settings. The ransom money notes and also tricks of extorting the ransom amount may vary depending on certain local (regional) settings.

Ransomware injection

As an example:

    Faulty signals regarding unlicensed software.

    In certain locations, the Trojans typically wrongfully report having spotted some unlicensed applications made it possible for on the sufferer’s tool. The alert then requires the individual to pay the ransom.

    Faulty declarations concerning unlawful material.

    In countries where software program piracy is less preferred, this approach is not as reliable for the cyber scams. Additionally, the Win32/Kryptik.DOTO popup alert may wrongly assert to be stemming from a police institution and will report having situated youngster pornography or other illegal data on the tool.

    Win32/Kryptik.DOTO popup alert might incorrectly claim to be obtaining from a regulation enforcement institution as well as will report having situated kid pornography or various other unlawful information on the gadget. The alert will in a similar way consist of a requirement for the individual to pay the ransom.

Technical details

File Info:

crc32: BD4F09E7
md5: a8906843b3fac9ddfca97a1f033c5d81
name: A8906843B3FAC9DDFCA97A1F033C5D81.mlw
sha1: 8f0cbd5c6e301aa7be0f8ea8a0aec35303503160
sha256: 7b810a64f0491e9ac3bf975fb16dfba1ca58e4c979eedcb6653bdd0b774707fc
sha512: a6947df5c670b0de7e6ca1f43565387f57438109e437662e9090ae26d5fae2e7c7df1a26d47ad7986a8567c4b06e6b7b7aa9b98245a0cbb08205b19ff99357b8
ssdeep: 12288:zOypjkCOR+2kUgW3wJlNUboex6nI2laauo6jxULO:tpAdMW3wv86I1a8r
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

LegalCopyright: Copyright xa9AtomPark Software Inc.. All rights reserved.
InternalName: Intra
FileVersion: 5.8.8.2
CompanyName: AtomPark Software Inc.
ProductName: Intra
ProductVersion: 5.8.8.2
FileDescription: A500 Msdn Cancel Triggering
Translation: 0x0409 0x04b0

Win32/Kryptik.DOTO also known as:

GridinSoftTrojan.Ransom.Gen
Elasticmalicious (high confidence)
DrWebTrojan.Siggen7.17790
McAfeeArtemis!A8906843B3FA
CylanceUnsafe
SangforTrojan.Win32.Save.a
AlibabaRansom:Win32/Zerber.c253ee93
K7GWTrojan ( 00504a281 )
K7AntiVirusTrojan ( 00504a281 )
CyrenW32/Cerber.GDGH-0045
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of Win32/Kryptik.DOTO
APEXMalicious
AvastFileRepMalware
CynetMalicious (score: 100)
KasperskyTrojan-Ransom.Win32.Zerber.dkzv
BitDefenderTrojan.Ransom.Cerber.MK
NANO-AntivirusTrojan.Win32.Zerber.enbdnk
MicroWorld-eScanTrojan.Ransom.Cerber.MK
TencentWin32.Trojan.Zerber.Lnxo
Ad-AwareTrojan.Ransom.Cerber.MK
SophosTroj/Cerber-AKG
ComodoMalware@#wre5m9cm5pk0
F-SecureTrojan.TR/Crypt.ZPACK.Gen7
BitDefenderThetaGen:NN.ZexaF.34608.ymLfaausLrli
TrendMicroRansom_CERBER.SMJAL
McAfee-GW-EditionBehavesLike.Win32.AdwareFenomen.fc
FireEyeGeneric.mg.a8906843b3fac9dd
EmsisoftTrojan.Ransom.Cerber.MK (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan.Zerber.bgu
WebrootW32.Trojan.Gen
AviraTR/Crypt.ZPACK.Gen7
eGambitUnsafe.AI_Score_94%
Antiy-AVLTrojan[Ransom]/Win32.Zerber
KingsoftWin32.Troj.Undef.(kcloud)
MicrosoftTrojan:Win32/Occamy.C
ArcabitTrojan.Ransom.Cerber.MK
AegisLabTrojan.Win32.Zerber.4!c
ZoneAlarmTrojan-Ransom.Win32.Zerber.dkzv
GDataTrojan.Ransom.Cerber.MK
TACHYONRansom/W32.Cerber.482763.B
VBA32BScope.Trojan.Yakes
MAXmalware (ai score=100)
MalwarebytesMalware.Heuristic.1003
PandaTrj/CI.A
TrendMicro-HouseCallRansom_CERBER.SMJAL
RisingRansom.Zerber!8.518C (CLOUD)
YandexTrojan.Zerber!TdC1i8kPsu0
IkarusTrojan-Ransom.GandCrab
FortinetW32/Generic.AP.B1328!tr
AVGFileRepMalware
Paloaltogeneric.ml
Qihoo-360Win32/Ransom.Cerber.HwsBba4A

How to remove Win32/Kryptik.DOTO 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.DOTO 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.DOTO 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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