Trojan:Win32/CryptInject.AP!MTB

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

What is Trojan:Win32/CryptInject.AP!MTB infection?

In this article you will certainly discover regarding the meaning of Trojan:Win32/CryptInject.AP!MTB and also its negative effect on your computer. Such ransomware are a form of malware that is specified by on the internet fraudulences to require paying the ransom by a victim.

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Most of the situations, Trojan:Win32/CryptInject.AP!MTB virus will instruct its victims to start funds move for the objective of neutralizing the changes that the Trojan infection has introduced to the target’s gadget.

Trojan:Win32/CryptInject.AP!MTB Summary

These adjustments can be as complies with:

  • 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.
  • 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.
  • 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;
  • Executed a process and injected code into it, probably while unpacking;
  • 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
  • Collects information about installed applications;
  • 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.
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents situated on the target’s disk drive — so the victim can no longer utilize the data;
  • Preventing routine 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.

Trojan:Win32/CryptInject.AP!MTB

The most normal networks where Trojan:Win32/CryptInject.AP!MTB Ransomware are injected are:

  • By means of phishing e-mails;
  • As a consequence of individual ending up on a source that organizes a malicious software program;

As soon as the Trojan is effectively injected, it will certainly either cipher the information on the victim’s computer or stop the gadget from functioning in an appropriate way – while likewise putting a ransom note that discusses the demand for the targets to effect the payment for the objective of decrypting the documents or restoring the data system back to the first problem. In many circumstances, the ransom note will certainly show up when the client restarts the PC after the system has actually already been damaged.

Trojan:Win32/CryptInject.AP!MTB circulation channels.

In numerous edges of the globe, Trojan:Win32/CryptInject.AP!MTB expands by leaps and bounds. However, the ransom notes and also techniques of obtaining the ransom amount may vary depending upon particular regional (local) setups. The ransom money notes and tricks of extorting the ransom money quantity might differ depending on specific regional (regional) settings.

Ransomware injection

As an example:

    Faulty alerts about unlicensed software application.

    In specific locations, the Trojans usually wrongfully report having found some unlicensed applications made it possible for on the sufferer’s tool. The alert then demands the user to pay the ransom money.

    Faulty declarations concerning prohibited web content.

    In nations where software program piracy is less preferred, this approach is not as efficient for the cyber fraudulences. Conversely, the Trojan:Win32/CryptInject.AP!MTB popup alert may falsely declare to be stemming from a police organization and will report having located kid pornography or other prohibited data on the tool.

    Trojan:Win32/CryptInject.AP!MTB popup alert may falsely assert to be obtaining from a law enforcement organization as well as will certainly report having situated kid porn or other prohibited data on the tool. The alert will similarly contain a requirement for the user to pay the ransom money.

Technical details

File Info:

crc32: 30B37588
md5: 2592b6379d2dbfa49e3ed25edf864692
name: 2c.jpg
sha1: aae1e5f8af598b3ca227c3311bdda7c4057b8b33
sha256: 251e5b6f2b31c12ba7faf8e3f1a3b70d0988dcc66cfc9d52303c22a8077687b3
sha512: 225115fee22cca1dd502fee70937e10ccda5c8869448a2e40c9e5bfb90398e7ed90e2fe30412ec01d0d108ddc5ee9094c93f7248725023205c0e00ef72f4be8c
ssdeep: 24576:8rp3REKuDEPQbiQi86OhkOH0cNp0RZR3RjFHI9t0FsnfEClh83ashX:C3+X6O7rp0BRj1Ot0FsfECle3ashX
type: PE32 executable (GUI) Intel 80386 system file, for MS Windows

Version Info:

0: [No Data]

Trojan:Win32/CryptInject.AP!MTB also known as:

GridinSoftTrojan.Ransom.Gen
MicroWorld-eScanTrojan.GenericKD.41914209
CAT-QuickHealRansom.Stop.MP4
McAfeeTrojan-FRNA!2592B6379D2D
CylanceUnsafe
VIPRETrojan.Win32.Generic!BT
K7AntiVirusTrojan ( 005593ca1 )
BitDefenderTrojan.GenericKD.41914209
K7GWTrojan ( 005593ca1 )
Invinceaheuristic
SymantecDownloader
APEXMalicious
Paloaltogeneric.ml
ClamAVWin.Trojan.Agent-7207377-0
GDataTrojan.GenericKD.41914209
KasperskyTrojan.Win32.Fsysna.fvwc
AlibabaTrojan:Win32/Fsysna.e64ec799
NANO-AntivirusTrojan.Win32.Generic.gcmcql
AegisLabTrojan.Win32.Fsysna.4!c
AvastWin32:Malware-gen
Endgamemalicious (high confidence)
EmsisoftTrojan.Agent (A)
F-SecureTrojan.TR/AD.Troldesh.kxkjx
DrWebTrojan.Encoder.858
ZillyaTrojan.Fsysna.Win32.18693
TrendMicroTROJ_FRS.VSNW0AJ19
McAfee-GW-EditionBehavesLike.Win32.MultiPlug.tm
FireEyeGeneric.mg.2592b6379d2dbfa4
SophosTroj/Xtbl-DQ
SentinelOneDFI – Malicious PE
CyrenW32/Trojan.XHLI-4974
JiangminTrojanDownloader.Bandit.alm
WebrootW32.Trojan.Gen
AviraTR/AD.Troldesh.kxkjx
Antiy-AVLTrojan/Win32.Wacatac
ArcabitTrojan.Generic.D27F8F61
ViRobotTrojan.Win32.Ransom.1705472
ZoneAlarmTrojan.Win32.Fsysna.fvwc
MicrosoftTrojan:Win32/CryptInject.AP!MTB
AhnLab-V3Trojan/Win32.MalPe.R293967
Acronissuspicious
VBA32TrojanDropper.Agent
ALYacTrojan.Ransom.Shade
MAXmalware (ai score=82)
Ad-AwareTrojan.GenericKD.41914209
MalwarebytesTrojan.MalPack.GS
ESET-NOD32a variant of Win32/Kryptik.GXBQ
TrendMicro-HouseCallTROJ_FRS.VSNW0AJ19
RisingTrojan.Kryptik!1.BD89 (CLASSIC)
IkarusTrojan.Win32.Crypt
FortinetW32/Kryptik.GWZX!tr
MaxSecureTrojan.Malware.74621603.susgen
AVGWin32:Malware-gen
PandaTrj/GdSda.A
CrowdStrikewin/malicious_confidence_100% (W)
Qihoo-360Win32/Trojan.300

How to remove Trojan:Win32/CryptInject.AP!MTB virus?

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

The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes.2.

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 install-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 Trojan:Win32/CryptInject.AP!MTB 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 Trojan:Win32/CryptInject.AP!MTB 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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