Threat Database Trojans Trojan.Kryptik.DFA

Trojan.Kryptik.DFA

By CagedTech in Trojans

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 71
First Seen: September 9, 2022
Last Seen: September 10, 2025
OS(es) Affected: Windows

The detection of Trojan.Kryptik.DFA on your system indicates a potential security threat that requires immediate attention. This report aims to provide you with a comprehensive understanding of the threat, its operational methods, symptoms of infection, and most importantly, steps to remove it from your computer.

What Is Trojan.Kryptik.DFA?

Trojan.Kryptik.DFA is identified as a Trojan-type threat, which is a broad category of malware designed to allow unauthorized access to a computer system. Trojans can be used for a variety of malicious purposes, including data theft, espionage, and the distribution of additional malware. The name "Trojan.Kryptik.DFA" suggests it may involve encryption or obfuscation techniques to evade detection, but without specific details, it's crucial to approach removal with a general understanding of Trojan horse malware.

How Trojan.Kryptik.DFA Operates

Trojan.Kryptik.DFA, like other Trojans, operates by disguising itself as legitimate software or piggybacking on legitimate programs to gain entry into a system. Once inside, it can create backdoors for remote access, install additional malware, or steal sensitive information. The exact mechanisms can vary widely, including exploiting vulnerabilities in software, using social engineering tactics to trick users into installing it, or being bundled with other malicious or compromised software.

Symptoms of Infection

Symptoms of a Trojan infection can be subtle and may not always be immediately apparent. Common signs include unusual system behavior such as slow performance, frequent crashes, or the appearance of unwanted programs or toolbars in your web browser. You might also notice that your antivirus software is disabled or that you are being redirected to unwanted websites. Sometimes, there may be no noticeable symptoms at all, which is why regular system scans are crucial for detection.

How to Remove Trojan.Kryptik.DFA

  1. Enter Safe Mode with Networking: Before you start the removal process, boot your computer in Safe Mode with Networking. This will prevent Trojan.Kryptik.DFA from loading and make it easier to remove.
  2. Full Scan with a Reputable Tool: Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system. Ensure the tool is updated to the latest version to increase the chances of detecting and removing the Trojan.
  3. Uninstall Suspicious Programs: Go through your installed programs and uninstall any that you don't recognize or that were installed around the time you suspect the infection occurred.
  4. Reset Your Browser: If your web browser has been affected, reset it to its default settings. This can be done in the settings menu of Chrome, Firefox, Edge, or whatever browser you use. Be aware that this will remove all extensions, so you will need to reinstall any legitimate ones afterward.
  5. Reboot and Re-scan: After completing the above steps, reboot your computer and perform another full scan with your anti-malware tool to ensure that all traces of the Trojan have been removed.

Conclusion

Removing Trojan.Kryptik.DFA requires a systematic approach to ensure all components of the malware are eliminated from your system. It's also a good time to review your security practices, including updating your operating system and software, using strong, unique passwords, and being cautious with emails and downloads from unknown sources. Regular backups of important data can also protect you from potential future threats. By following these steps and maintaining vigilance, you can help protect your computer and personal data from malware threats like Trojan.Kryptik.DFA.

Analysis Report

General information

Family Name: Trojan.Kryptik.DFA
Signature status: No Signature

Known Samples

MD5: 03c2b0092b462dc26fbc80173f4c3a19
SHA1: 6ca0ce792a42fa7e5336928921f1b57e631f2fdd
SHA256: E8F446A7FFE2580A064C4406F7FD1BB25E8F8DAFA93F70A471193FEBE9E5353B
File Size: 1.94 MB, 1935239 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have debug information
  • File doesn't have relocations information
  • File doesn't have security information
  • File has exports table
  • File has TLS information
  • File is 32-bit executable
  • File is either console or GUI application
  • File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
  • File is Native application (NOT .NET application)
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  • File is not packed
  • IMAGE_FILE_DLL is not set inside PE header (Executable)
  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

File Icons

Windows PE Version Information

Name Value
Comments This installation was built with Inno Setup.
File Description instaalleeer Setup
Product Name instaalleeer
Product Version 101.101.05

File Traits

  • dll
  • x86

Files Modified

File Attributes
c:\users\user\appdata\local\temp\is-53pgp.tmp\_isetup\_setup64.tmp Generic Read,Write Data,Write Attributes,Write extended,Append data
c:\users\user\appdata\local\temp\is-53pgp.tmp\settmp.dll Generic Write,Read Attributes
c:\users\user\appdata\local\temp\is-vrjpt.tmp\6ca0ce792a42fa7e5336928921f1b57e631f2fdd_0001935239.tmp Generic Write,Read Attributes

Registry Modifications

Key::Value Data API Name
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::proxybypass  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::intranetname  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::uncasintranet  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::autodetect RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::proxybypass  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::intranetname  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::uncasintranet  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::autodetect RegNtPreCreateKey
HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc3475 �� xy�ރK`��^}��Vs}��/��� RegNtPreCreateKey

Windows API Usage

Category API
Process Shell Execute
  • CreateProcess
  • ShellExecute
User Data Access
  • GetUserObjectInformation

Shell Command Execution

"C:\Users\Jyrtoshx\AppData\Local\Temp\is-VRJPT.tmp\6ca0ce792a42fa7e5336928921f1b57e631f2fdd_0001935239.tmp" /SL5="$10254,1092480,832512,c:\users\user\downloads\6ca0ce792a42fa7e5336928921f1b57e631f2fdd_0001935239"
(NULL) c:\users\user\downloads\6ca0ce792a42fa7e5336928921f1b57e631f2fdd_0001935239 /VERYSILENT

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