Trojan:Win32/CryptInject.SD!MTB

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

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

In this short article you will certainly locate concerning the interpretation of Trojan:Win32/CryptInject.SD!MTB and its adverse effect on your computer. Such ransomware are a kind of malware that is clarified by on-line frauds to require paying the ransom money by a target.

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Most of the cases, Trojan:Win32/CryptInject.SD!MTB infection will instruct its victims to start funds move for the function of reducing the effects of the modifications that the Trojan infection has introduced to the victim’s tool.

Trojan:Win32/CryptInject.SD!MTB Summary

These alterations 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.
  • Presents an Authenticode digital signature;
  • 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.
  • A process attempted to delay the analysis task.;
  • Attempts to connect to a dead IP:Port (9 unique times);
  • Starts servers listening on 127.0.0.1:51521;
  • 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.

  • Performs some HTTP requests;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Looks up the external IP address;
  • Uses Windows utilities for basic functionality;
  • Attempts to delete volume shadow copies;
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • Installs Tor on the infected machine;
  • 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.
  • Creates a copy of itself;
  • 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 situated on the victim’s hard disk drive — so the target can no more utilize the information;
  • Preventing routine accessibility 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.
Similar behavior
Related domains
whatismyipaddress.comTrojan.Ransom.Shade
whatsmyip.netTrojan.Ransom.Shade

Trojan:Win32/CryptInject.SD!MTB

The most normal channels through which Trojan:Win32/CryptInject.SD!MTB Ransomware are infused are:

  • By ways of phishing emails;
  • As a consequence of user ending up on a resource that holds a harmful software;

As quickly as the Trojan is effectively injected, it will either cipher the information on the sufferer’s PC or prevent the tool from functioning in a correct fashion – while also placing a ransom note that states the demand for the victims to effect the repayment for the objective of decrypting the records or bring back the file system back to the initial problem. In many instances, the ransom money note will certainly show up when the customer restarts the PC after the system has already been damaged.

Trojan:Win32/CryptInject.SD!MTB distribution channels.

In numerous corners of the globe, Trojan:Win32/CryptInject.SD!MTB grows by jumps as well as bounds. Nonetheless, the ransom notes and also methods of extorting the ransom money quantity might vary relying on particular regional (regional) settings. The ransom notes and also tricks of extorting the ransom quantity might differ depending on certain regional (local) settings.

Ransomware injection

As an example:

    Faulty signals concerning unlicensed software program.

    In specific locations, the Trojans typically wrongfully report having actually discovered some unlicensed applications allowed on the victim’s device. The alert then requires the user to pay the ransom money.

    Faulty statements regarding unlawful web content.

    In nations where software program piracy is much less prominent, this method is not as reliable for the cyber scams. Alternatively, the Trojan:Win32/CryptInject.SD!MTB popup alert might wrongly assert to be deriving from a law enforcement organization and also will certainly report having situated kid pornography or other unlawful data on the gadget.

    Trojan:Win32/CryptInject.SD!MTB popup alert may incorrectly declare to be deriving from a law enforcement establishment and will certainly report having situated child pornography or other prohibited data on the tool. The alert will in a similar way contain a demand for the customer to pay the ransom.

Technical details

File Info:

crc32: 7D98A95F
md5: 75760081efb68f1b0f8202c623a11c79
name: 1c.jpg
sha1: 6bc07faddb7bbb521561fdcaf67a9e3af8314781
sha256: a8105a507cda24d05f6a7488e72ac7f8169ef1b1626fdd479630ecfe5141a375
sha512: c897c1abccf2eea1907a266fb73c09cbb7cd0806c31d187b096aafe99127644a90ac1d9ec3d6446bd61133a42436e6d726eb8ab8045e65b33d98da55fcbacb41
ssdeep: 12288:uot6vIJx7HFbaUxUmDZ2MFp8nWAZgmmaj0OmBXyXvN1klel8VzqPRs2h2lmQKX9:uY6gHtaHuX5AZWaGBXy/LeVzMH2AJX9
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright xa9 Hilgraeve, Inc. 2001
InternalName: HyperTrm
FileVersion: 5.1.2600.0
CompanyName: Hilgraeve, Inc.
LegalTrademarks: HyperTerminal xae is a registered trademark of Hilgraeve, Inc.
Comments: HyperTerminal xae was developed by Hilgraeve, Inc. for Microsoft
ProductName: Microsoftxae Windowsxae Operating System
ProductVersion: 5.1.2600.0
FileDescription: HyperTerminal Applet
OriginalFilename: HYPERTRM.EXE
Translation: 0x0409 0x0000

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

GridinSoftTrojan.Ransom.Gen
DrWebTrojan.Encoder.29090
MicroWorld-eScanTrojan.GenericKD.32223517
CAT-QuickHealTrojan.Glwt
ALYacTrojan.Ransom.Shade
VIPRETrojan.Win32.Generic!BT
AegisLabTrojan.Win32.Malicious.4!c
K7AntiVirusTrojan ( 0054985e1 )
BitDefenderTrojan.GenericKD.32223517
K7GWTrojan ( 0054985e1 )
Cybereasonmalicious.ddb7bb
TrendMicroRansom.Win32.SHADE.THGCOAI
BitDefenderThetaGen:NN.ZexaF.32247.br1@amebO!pi
CyrenW32/Agent.BAE.gen!Eldorado
SymantecPacked.Generic.459
APEXMalicious
AvastWin32:CrypterX-gen [Trj]
GDataTrojan.GenericKD.32223517
KasperskyHEUR:Trojan-Ransom.Win32.Shade.gen
AlibabaRansom:Win32/TorJok.00c770e6
NANO-AntivirusTrojan.Win32.Encoder.fuaubb
RisingRansom.Shade!8.12CC (TFE:5:ZBvR8aQC1uU)
Ad-AwareTrojan.GenericKD.32223517
SophosTroj/Xtbl-CR
ComodoTrojWare.Win32.Ransom.Shade.V@8a2fgu
F-SecureTrojan.TR/AD.Troldesh.oytdw
ZillyaTrojan.Filecoder.Win32.9735
Invinceaheuristic
McAfee-GW-EditionTrojan-FRHB!75760081EFB6
Trapminemalicious.moderate.ml.score
FireEyeGeneric.mg.75760081efb68f1b
EmsisoftTrojan-Ransom.Shade (A)
IkarusTrojan-Ransom.Crypted007
F-ProtW32/Agent.BAE.gen!Eldorado
WebrootTrojan.Dropper.Gen
AviraTR/AD.Troldesh.oytdw
Antiy-AVLTrojan/Win32.TSGeneric
Endgamemalicious (high confidence)
ArcabitTrojan.Generic.D1EBB11D
ZoneAlarmHEUR:Trojan-Ransom.Win32.Shade.gen
MicrosoftTrojan:Win32/CryptInject.SD!MTB
AhnLab-V3Trojan/Win32.Agent.R283889
Acronissuspicious
McAfeeTrojan-FRHB!75760081EFB6
VBA32Malware-Cryptor.Kirgudu
CylanceUnsafe
PandaTrj/GdSda.A
ESET-NOD32Win32/Filecoder.Shade.B
TrendMicro-HouseCallRansom.Win32.SHADE.THGCOAI
SentinelOneDFI – Malicious PE
eGambitPE.Heur.InvalidSig
FortinetW32/Kryptik.GLWT!tr
AVGWin32:CrypterX-gen [Trj]
Paloaltogeneric.ml
CrowdStrikewin/malicious_confidence_60% (W)
Qihoo-360HEUR/QVM10.2.C50D.Malware.Gen

How to remove Trojan:Win32/CryptInject.SD!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.SD!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.SD!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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