Win32/Kryptik.DGYY

Written by Robert Bailey

What is Win32/Kryptik.DGYY infection?

In this article you will certainly locate concerning the meaning of Win32/Kryptik.DGYY as well as its adverse influence on your computer. Such ransomware are a form of malware that is specified by on-line fraudulences to require paying the ransom by a sufferer.

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In the majority of the situations, Win32/Kryptik.DGYY infection will certainly advise its targets to initiate funds transfer for the purpose of neutralizing the changes that the Trojan infection has presented to the target’s device.

Win32/Kryptik.DGYY Summary

These alterations can be as complies with:

  • Injection (inter-process);
  • Injection (Process Hollowing);
  • 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.
  • Possible date expiration check, exits too soon after checking local time;
  • 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.

  • 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.
  • Uses Windows utilities for basic functionality;
  • Executed a process and injected code into it, probably while unpacking;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Attempts to delete volume shadow copies;
  • Network activity contains more than one unique useragent.;
  • 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
  • Exhibits possible ransomware file modification behavior;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Creates a copy of itself;
  • Creates a known TeslaCrypt/AlphaCrypt ransomware decryption instruction / key file.;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the papers located on the victim’s hard disk drive — so the target can no more use the data;
  • Preventing regular accessibility to the victim’s workstation;

Win32/Kryptik.DGYY

The most regular channels through which Win32/Kryptik.DGYY Ransomware Trojans are infused are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As an effect of customer winding up on a resource that hosts a harmful software program;

As quickly as the Trojan is successfully injected, it will either cipher the information on the victim’s computer or prevent the device from working in a proper way – while additionally putting a ransom money note that discusses the demand for the victims to impact the repayment for the objective of decrypting the files or recovering the file system back to the preliminary condition. In most circumstances, the ransom money note will come up when the customer restarts the COMPUTER after the system has already been damaged.

Win32/Kryptik.DGYY distribution channels.

In numerous corners of the world, Win32/Kryptik.DGYY grows by jumps as well as bounds. Nonetheless, the ransom money notes as well as methods of extorting the ransom money quantity may differ depending on specific regional (local) setups. The ransom money notes as well as techniques of obtaining the ransom money quantity might differ depending on certain neighborhood (local) settings.

Ransomware injection

For instance:

    Faulty informs regarding unlicensed software.

    In certain locations, the Trojans usually wrongfully report having discovered some unlicensed applications enabled on the target’s tool. The alert after that demands the customer to pay the ransom money.

    Faulty declarations concerning illegal content.

    In countries where software piracy is less prominent, this approach is not as effective for the cyber fraudulences. Alternatively, the Win32/Kryptik.DGYY popup alert may wrongly assert to be deriving from a police establishment and also will certainly report having located youngster porn or various other prohibited data on the gadget.

    Win32/Kryptik.DGYY popup alert might falsely assert to be acquiring from a regulation enforcement institution and will report having situated youngster porn or other prohibited information on the gadget. The alert will similarly consist of a need for the customer to pay the ransom.

Technical details

File Info:

crc32: 5F0FC920
md5: 8bbae7c5ffd12f51b9bb89e086ea6770
name: 8BBAE7C5FFD12F51B9BB89E086EA6770.mlw
sha1: e4fd4be9c20a9f136edf6943c2669699e46ce605
sha256: f4e9047287ae3bd5e9907d7e19fbe7efc2acbe11dd13b0775d82309789991556
sha512: c9d244528de40f2e697ebf0d5836664fb44174156e3b73e09b5da3de493f8b13d7de3495c3c9a79a820ce7e1bb9c371fcce52d8492b4298f38ca90ba293541ed
ssdeep: 6144:FELoZHPMlDuO5N+s/jw37KWbUZ25nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnfn:msNklLNw3OWQCnnnnnnnnnnnnnnnnnn
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.DGYY also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 0055dd191 )
Elastic malicious (high confidence)
DrWeb Trojan.PWS.Siggen1.31455
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.TeslaCrypt.A3
ALYac Trojan.Ransom.AJJ
Cylance Unsafe
Zillya Trojan.Bitman.Win32.213
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_60% (D)
Alibaba Ransom:Win32/Tescrypt.6f4bb08f
K7GW Trojan ( 0055dd191 )
Cybereason malicious.5ffd12
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.DGYY
APEX Malicious
Avast Win32:GenMalicious-KGD [Trj]
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.Ransom.AJJ
NANO-Antivirus Trojan.Win32.Bitman.drednm
MicroWorld-eScan Trojan.Ransom.AJJ
Tencent Malware.Win32.Gencirc.114cc093
Ad-Aware Trojan.Ransom.AJJ
Sophos Mal/Generic-S
Comodo Malware@#agqcuqkm6aeb
BitDefenderTheta Gen:NN.ZexaF.34628.vqW@a8eH8vfi
VIPRE Trojan.Win32.Generic!BT
TrendMicro TROJ_GEN.R034E01H415
McAfee-GW-Edition BehavesLike.Win32.MultiPlug.fh
FireEye Generic.mg.8bbae7c5ffd12f51
Emsisoft Trojan.Ransom.AJJ (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan/Bitman.bw
Webroot W32.Rogue.Gen
Avira HEUR/AGEN.1107198
eGambit Generic.Malware
Microsoft Ransom:Win32/Tescrypt.A
Arcabit Trojan.Ransom.AJJ
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Trojan.Ransom.AJJ
AhnLab-V3 Trojan/Win32.MDA.R146572
Acronis suspicious
McAfee Ransom-Tescrypt!8BBAE7C5FFD1
MAX malware (ai score=100)
VBA32 BScope.Trojan.Encoder
Panda Trj/CI.A
TrendMicro-HouseCall TROJ_GEN.R034E01H415
Rising Ransom.Tescrypt!8.3AF (CLOUD)
Yandex Trojan.GenAsa!v51Uje9eEIk
Ikarus Trojan-Ransom.TeslaCrypt2
Fortinet W32/Filecoder.ER!tr
AVG Win32:GenMalicious-KGD [Trj]
Qihoo-360 Win32/Trojan.Ransom.5e5

How to remove Win32/Kryptik.DGYY 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.DGYY 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:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Win32/Kryptik.DGYY 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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