Win32/Kryptik.AJGE

Written by Robert Bailey

What is Win32/Kryptik.AJGE infection?

In this short article you will find concerning the interpretation of Win32/Kryptik.AJGE and its negative influence on your computer system. Such ransomware are a type of malware that is clarified by on-line scams to demand paying the ransom money by a victim.

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Most of the instances, Win32/Kryptik.AJGE infection will certainly instruct its targets to launch funds move for the purpose of neutralizing the changes that the Trojan infection has introduced to the target’s device.

Win32/Kryptik.AJGE Summary

These modifications 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.
  • Compression (or decompression);
  • Injection with CreateRemoteThread in a remote process;
  • 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.
  • Mimics the system’s user agent string for its own requests;
  • Starts servers listening on 0.0.0.0:19841, :0;
  • 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.

  • 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;
  • Code injection with CreateRemoteThread in a remote process;
  • Tries to unhook or modify Windows functions monitored by Cuckoo;
  • Steals private information from local Internet browsers;
  • A system process is generating network traffic likely as a result of process injection;
  • 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.
  • Creates Zeus (Banking Trojan) mutexes;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Attempts to modify browser security settings;
  • Attempts to interact with an Alternate Data Stream (ADS);
  • Creates a slightly modified copy of itself;
  • 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.
  • Clears web history;
  • Ciphering the documents found on the victim’s hard disk — so the target can no more make use of the data;
  • Preventing regular access to the target’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.AJGE

The most common networks through which Win32/Kryptik.AJGE Ransomware 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 individual winding up on a resource that organizes a malicious software program;

As soon as the Trojan is effectively infused, it will certainly either cipher the data on the sufferer’s PC or stop the tool from working in a correct fashion – while likewise placing a ransom note that points out the need for the targets to impact the settlement for the purpose of decrypting the records or recovering the documents system back to the initial condition. In many instances, the ransom note will show up when the client reboots the COMPUTER after the system has already been harmed.

Win32/Kryptik.AJGE circulation networks.

In different edges of the globe, Win32/Kryptik.AJGE expands by jumps and bounds. However, the ransom money notes and also techniques of extorting the ransom money quantity may differ depending upon certain local (local) setups. The ransom notes and methods of extorting the ransom quantity might differ depending on particular local (local) settings.

Ransomware injection

As an example:

    Faulty informs concerning unlicensed software program.

    In particular locations, the Trojans typically wrongfully report having actually identified some unlicensed applications made it possible for on the sufferer’s gadget. The sharp then demands the user to pay the ransom.

    Faulty statements about unlawful content.

    In countries where software piracy is less prominent, this approach is not as effective for the cyber scams. Additionally, the Win32/Kryptik.AJGE popup alert may incorrectly assert to be stemming from a police establishment as well as will report having located child pornography or other prohibited information on the device.

    Win32/Kryptik.AJGE popup alert might falsely claim to be deriving from a law enforcement organization as well as will certainly report having situated youngster pornography or other illegal data on the device. The alert will in a similar way include a demand for the user to pay the ransom money.

Technical details

File Info:

crc32: 3D259DC4
md5: 2257bbffaa5528b035e7177db4dc8648
name: 2257BBFFAA5528B035E7177DB4DC8648.mlw
sha1: 0617689afff8485b3ecae1b3e19e22c510784d1d
sha256: a25d17e9f01a871683bd8bd0411a4750bbdb75d5defb7ccbab17d5c7c68f7baa
sha512: 0d7d5efddfce78d06962ac0e268a96e7770237c8cdfceac705fc5378a1106297c27ab792a4560b3967cc25af8668d69c3b3c810e1d84d2adf6e3acfee00c95af
ssdeep: 6144:idyCAYIj8JBcwzZ2Imzvkclb9Fhvn8NhvC:idOj8JBMD/Hhvn8O
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: xa9 Microsoft Corporation. All rights reserved.
InternalName: MSRATING
FileVersion: 6.00.2600.0000 (xpclient.010817-1148)
CompanyName: Microsoft Corporation
ProductName: Microsoftxae Windowsxae Operating System
OleSelfRegister:
ProductVersion: 6.00.2600.0000
FileDescription: Internet Ratings and Local User Management DLL
OriginalFilename: MSRATING.DLL
Translation: 0x0409 0x04b0

Win32/Kryptik.AJGE also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Spyware ( 000287dc1 )
Elastic malicious (high confidence)
DrWeb Trojan.PWS.Panda.2363
Panda Trj/Genetic.gen
Cynet Malicious (score: 100)
CAT-QuickHeal TrojanPWS.Zbot.Gen
ALYac Trojan.Ransom.Cerber.1
Cylance Unsafe
Zillya Trojan.Yakes.Win32.49467
Sangfor Ransom.Win32.Cerber_67.se
CrowdStrike win/malicious_confidence_100% (W)
Alibaba VirTool:Win32/Obfuscator.40a04781
K7GW Spyware ( 000287dc1 )
Cybereason malicious.faa552
NANO-Antivirus Trojan.Win32.Panda.zsqgg
Cyren W32/Zbot.IT.gen!Eldorado
ESET-NOD32 a variant of Win32/Kryptik.AJGE
APEX Malicious
Avast Win32:Cryptor
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.Ransom.Cerber.1
SUPERAntiSpyware Trojan.Agent/Gen-Graftor
MicroWorld-eScan Trojan.Ransom.Cerber.1
Ad-Aware Trojan.Ransom.Cerber.1
Sophos Mal/Generic-R + Mal/Zbot-IV
Comodo TrojWare.Win32.Spy.Zbot.AJM@4q3hmb
BitDefenderTheta Gen:NN.ZexaF.34628.wq1@aCnD9Mci
VIPRE Trojan.Win32.Reveton.a (v)
McAfee-GW-Edition BehavesLike.Win32.ZBot.fh
Emsisoft Trojan.Ransom.Cerber.1 (B)
SentinelOne Static AI – Malicious PE
F-Prot W32/Zbot.IT.gen!Eldorado
Jiangmin Trojan.Generic.dwkfl
Webroot Trojanspy:Win32/Fitmu.A
Avira TR/Graftor.385561
eGambit Generic.Malware
Microsoft VirTool:Win32/Obfuscator.ACV
Arcabit Trojan.Ransom.Cerber.1
AegisLab Trojan.Win32.Generic.lAAF
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Trojan.Ransom.Cerber.1
TACHYON Trojan/W32.Yakes.369152.AD
AhnLab-V3 Spyware/Win32.Zbot.R53013
Acronis suspicious
McAfee PWS-Zbot.gen.ajj
MAX malware (ai score=100)
Malwarebytes Generic.Malware/Suspicious
Kaspersky21 HEUR:Trojan.Win32.Generic
Tencent Malware.Win32.Gencirc.10b40627
Yandex Trojan.Kryptik!o4UjB22r9EU
Ikarus Trojan.Win32.Yakes
MaxSecure Trojan.Malware.4706787.susgen
Fortinet W32/Bublik.AM!tr
AVG Win32:Cryptor
Qihoo-360 Win32/Ransom.Cerber.HxQBezcA

How to remove Win32/Kryptik.AJGE 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.AJGE 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.AJGE 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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