Win32:Kryptik-JRX [Trj]

What is Win32:Kryptik-JRX [Trj] infection?

In this article you will discover concerning the definition of Win32:Kryptik-JRX [Trj] and its unfavorable influence on your computer system. Such ransomware are a type of malware that is specified by online fraudulences to require paying the ransom money by a target.

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In the majority of the instances, Win32:Kryptik-JRX [Trj] infection will certainly advise its targets to initiate funds transfer for the function of counteracting the changes that the Trojan infection has actually presented to the target’s gadget.

Win32:Kryptik-JRX [Trj] Summary

These alterations can be as follows:

  • 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.
  • Possible date expiration check, exits too soon after checking local time;
  • Expresses interest in specific running processes;
  • 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.
  • Unconventionial language used in binary resources: Chinese (Traditional);
  • 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;
  • Detects Sandboxie through the presence of a library;
  • Detects SunBelt Sandbox through the presence of a library;
  • Enumerates services, possibly for anti-virtualization;
  • Detects the presence of Wine emulator via function name;
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
  • 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
  • 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.
  • Checks the version of Bios, possibly for anti-virtualization;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Creates a copy of itself;
  • The sample wrote data to the system hosts file.;
  • 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.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents located on the victim’s hard drive — so the sufferer can no longer make use of the information;
  • 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-JRX [Trj]

One of the most normal networks where Win32:Kryptik-JRX [Trj] Ransomware are injected are:

  • By means of phishing e-mails;
  • As a repercussion of customer ending up on a source that holds a malicious software application;

As soon as the Trojan is efficiently infused, it will either cipher the information on the victim’s PC or prevent the gadget from working in a proper fashion – while likewise positioning a ransom note that discusses the need for the victims to effect the settlement for the objective of decrypting the documents or restoring the file system back to the first problem. In the majority of instances, the ransom money note will show up when the client restarts the COMPUTER after the system has already been harmed.

Win32:Kryptik-JRX [Trj] circulation networks.

In different corners of the globe, Win32:Kryptik-JRX [Trj] grows by jumps as well as bounds. Nonetheless, the ransom notes as well as methods of obtaining the ransom amount might vary depending on specific neighborhood (local) setups. The ransom money notes and methods of extorting the ransom quantity may differ depending on specific regional (local) setups.

Ransomware injection

As an example:

    Faulty signals concerning unlicensed software application.

    In particular areas, the Trojans frequently wrongfully report having actually identified some unlicensed applications allowed on the target’s device. The alert then requires the user to pay the ransom.

    Faulty declarations about unlawful material.

    In nations where software program piracy is much less prominent, this technique is not as reliable for the cyber scams. Alternatively, the Win32:Kryptik-JRX [Trj] popup alert may wrongly declare to be deriving from a law enforcement organization and also will report having situated kid pornography or various other illegal information on the gadget.

    Win32:Kryptik-JRX [Trj] popup alert might falsely assert to be acquiring from a law enforcement institution and also will certainly report having situated youngster pornography or various other illegal information on the tool. The alert will likewise include a requirement for the user to pay the ransom.

Technical details

File Info:

crc32: 06181142
md5: 9cb179149a38e519fb0f53f2c1997b4b
name: 9CB179149A38E519FB0F53F2C1997B4B.mlw
sha1: a9828339cbf34f51467d5e76758aab225a4d15f1
sha256: 0813ec62ff340d336a52741ef47c8da2dab48142dfe8f2f052e4d296305bbe48
sha512: 79752c8f18a15f54cdb5888a4d5a5fdb8fd4b92a401ea23e3cfa1e3e05f14fc7a9082f7a8cb79b745c2f45dac85d349b07055b51d4705bbe8b8fdd8f59a03a38
ssdeep: 3072:LhrYcXl/12Ts4g9bFloGaZ3FAH3jOsaZh8AaUR1nMJToGQXii2yWuF5oHbRPhZ3y:LNhuBCnRPqbAUnnM5iiidF5o7Y
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) VIA Technologies, Inc. 2000-2005
InternalName: viaide.sys
FileVersion: 5.1.3790.150
CompanyName: VIA Technologies, Inc.
PrivateBuild:
LegalTrademarks:
Comments: Support Rbtqpra XP
ProductName: VIA PCI IDE MINI Driver
SpecialBuild:
ProductVersion: 5.1.3790.150
FileDescription: VIA Generic PCI IDE Bus Driver
OriginalFilename: pciide.sys
Translation: 0x0409 0x04b0

Win32:Kryptik-JRX [Trj] also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
Cynet Malicious (score: 100)
ALYac Trojan.Ransom.Cerber.1
Cylance Unsafe
Zillya Trojan.Jorik.Win32.53072
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_80% (D)
Cybereason malicious.49a38e
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Ponmocup.GA
APEX Malicious
Avast Win32:Kryptik-JRX [Trj]
ClamAV Win.Trojan.Agent-555239
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.Ransom.Cerber.1
NANO-Antivirus Trojan.Win32.Kryptik.ewwzre
MicroWorld-eScan Trojan.Ransom.Cerber.1
Tencent Win32.Trojan.Generic.Hxgb
Ad-Aware Trojan.Ransom.Cerber.1
Sophos ML/PE-A + Mal/Ponmocup-C
BitDefenderTheta Gen:NN.ZexaF.34608.mq1@aKIzFPeb
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition GenericRXNV-KR!9CB179149A38
FireEye Generic.mg.9cb179149a38e519
Emsisoft Trojan.Ransom.Cerber.1 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan/Generic.jpeo
Webroot W32.Malware.Gen
Avira TR/Dropper.Gen
Microsoft Trojan:Win32/Vundo.SA
Arcabit Trojan.Ransom.Cerber.1
ZoneAlarm Trojan.Win32.Swisyn.jyb
GData Trojan.Ransom.Cerber.1
AhnLab-V3 Trojan/Win32.Pirminay.R10554
Acronis suspicious
McAfee GenericRXNV-KR!9CB179149A38
MAX malware (ai score=98)
Panda Generic Malware
Rising Dropper.Generic!8.35E (CLOUD)
Ikarus Trojan-Downloader.Win32.Ponmocup
Fortinet W32/Pirminay.ANJ!tr
AVG Win32:Kryptik-JRX [Trj]
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Cerber.HgIASOgA

How to remove Win32:Kryptik-JRX [Trj] 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-JRX [Trj] 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-JRX [Trj] 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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