Trojan.Crypt

What is Trojan.Crypt infection?

In this article you will certainly find about the definition of Trojan.Crypt and also its unfavorable effect on your computer system. Such ransomware are a kind of malware that is specified by online frauds to demand paying the ransom by a sufferer.

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When we talk about the intrusion of unfamiliar programs into your computer’s work, the proverb “Forewarned is forearmed” describes the situation as accurately as possible. Gridinsoft Anti-Malware is exactly the tool that is always useful to have in your armory: fast, efficient, up-to-date. It is appropriate to use it as an emergency help at the slightest suspicion of infection.
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In the majority of the instances, Trojan.Crypt virus will certainly advise its victims to launch funds transfer for the objective of counteracting the modifications that the Trojan infection has actually introduced to the target’s gadget.

Trojan.Crypt Summary

These adjustments 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.
  • 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.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • 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 a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files found on the victim’s hard disk drive — so the target can no more use the data;
  • Preventing routine 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.

Trojan.Crypt

One of the most regular channels where Trojan.Crypt Ransomware Trojans are injected are:

  • By means of phishing emails;
  • As a repercussion of individual ending up on a source that holds a harmful software program;

As quickly as the Trojan is efficiently injected, it will either cipher the data on the target’s computer or protect against the gadget from working in an appropriate fashion – while additionally putting a ransom note that mentions the need for the targets to impact the repayment for the purpose of decrypting the papers or restoring the file system back to the first condition. In a lot of circumstances, the ransom money note will come up when the client reboots the COMPUTER after the system has actually already been harmed.

Trojan.Crypt circulation networks.

In numerous edges of the world, Trojan.Crypt grows by leaps and also bounds. However, the ransom notes and techniques of extorting the ransom money amount might vary depending upon specific neighborhood (regional) settings. The ransom money notes and techniques of obtaining the ransom money quantity might vary depending on certain neighborhood (regional) setups.

Ransomware injection

For example:

    Faulty notifies regarding unlicensed software.

    In certain locations, the Trojans often wrongfully report having spotted some unlicensed applications made it possible for on the victim’s tool. The alert then demands the user to pay the ransom money.

    Faulty declarations about prohibited web content.

    In nations where software program piracy is less preferred, this method is not as reliable for the cyber scams. Conversely, the Trojan.Crypt popup alert might falsely declare to be originating from a law enforcement organization as well as will report having situated youngster pornography or various other illegal data on the tool.

    Trojan.Crypt popup alert may incorrectly claim to be acquiring from a legislation enforcement institution and will certainly report having located youngster porn or various other prohibited data on the tool. The alert will likewise contain a need for the individual to pay the ransom money.

Technical details

File Info:

crc32: 4DD22285
md5: b8eb69bc32720f8e99431772e3ffec9b
name: ph.exe
sha1: f8ae4e5d71c4b2d0f32e1a4e2239117cd52a2e4e
sha256: 55ad09b9dc25bcb9946753819cea5b1bef86415538fac47b64e18a150c07050b
sha512: 0672831fcc8327ccfb4bce815d018d65bb37dfd638ba5e93691fbaf9e7fbe80333b21efcdc057fca34fcbb6d0d0f60c7bcf4b0f2267ca337732aa87e6b23ef56
ssdeep: 12288:zgipWwIEVEZkHCaOPPMSkHVA4xNGAoMn:Bx6Pk/Ho
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: (C) 2007-2015 Flash-Integro LLC
InternalName: CompatibilityOfficially
FileVersion: 9.8.6.9
CompanyName: Flash-Integro LLC
PrivateBuild: 9.8.6.9
LegalTrademarks: (C) 2007-2015 Flash-Integro LLC
Comments: Visioneer Wpsc Astronomically Ptmechanical Fed
ProductName: CompatibilityOfficially
Languages: English
ProductVersion: 9.8.6.9
FileDescription: Visioneer Wpsc Astronomically Ptmechanical Fed
OriginalFilename: CompatibilityOfficially
Translation: 0x0409 0x04b0

Trojan.Crypt also known as:

GridinSoft Trojan.Ransom.Gen
MicroWorld-eScan Trojan.Autoruns.GenericKDS.41891918
CAT-QuickHeal Trojan.Sybici
ALYac Trojan.Autoruns.GenericKDS.41891918
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Malware
CrowdStrike win/malicious_confidence_80% (W)
BitDefender Trojan.Autoruns.GenericKDS.41891918
K7GW Trojan ( 0055950f1 )
K7AntiVirus Trojan ( 0055950f1 )
TrendMicro TROJ_GEN.R015C0WJC19
BitDefenderTheta Gen:NN.ZexaF.32519.Fy0@aKl140ji
Cyren W32/Kryptik.AGF.gen!Eldorado
Symantec Trojan Horse
ESET-NOD32 a variant of Win32/Kryptik.GXHA
TrendMicro-HouseCall TROJ_GEN.R015C0WJC19
GData Trojan.Autoruns.GenericKDS.41891918
Kaspersky Trojan-Proxy.Win32.Sybici.fh
Alibaba TrojanProxy:Win32/Sybici.82343ced
NANO-Antivirus Trojan.Win32.Sybici.gczkdx
AegisLab Trojan.Win32.Sybici.h!c
Avast Win32:Trojan-gen
Rising Trojan.Generic@ML.90 (RDMK:TbzBlzxX1X77rExG7oegMA)
Ad-Aware Trojan.Autoruns.GenericKDS.41891918
Sophos Mal/Generic-S
Comodo Malware@#2z14khnhl7kqq
F-Secure Trojan.TR/Kryptik.qdcjx
DrWeb Trojan.MulDrop11.20150
Zillya Trojan.Kryptik.Win32.1801269
Invincea heuristic
McAfee-GW-Edition BehavesLike.Win32.PUPXCK.gh
FireEye Generic.mg.b8eb69bc32720f8e
Emsisoft Trojan.Autoruns.GenericKDS.41891918 (B)
APEX Malicious
F-Prot W32/Kryptik.AGF.gen!Eldorado
Jiangmin TrojanProxy.Sybici.n
Webroot W32.Trojan.Gen
Avira TR/Kryptik.qdcjx
Antiy-AVL Trojan[Proxy]/Win32.Sybici
Endgame malicious (high confidence)
Arcabit Trojan.Autoruns.GenericS.D27F384E
AhnLab-V3 Malware/Win32.Generic.C3509748
ZoneAlarm Trojan-Proxy.Win32.Sybici.fh
Microsoft Trojan:Win32/Occamy.B
TACHYON Trojan-Proxy/W32.Sybici.508928
Acronis suspicious
McAfee RDN/Generic.glv
MAX malware (ai score=84)
VBA32 TrojanProxy.Sybici
Malwarebytes Trojan.Crypt
Ikarus Trojan-Ransom.GandCrab
Fortinet W32/Kryptik.GXDR!tr
AVG Win32:Trojan-gen
Panda Trj/CI.A
Qihoo-360 Win32/Trojan.009

How to remove Trojan.Crypt 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

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.Crypt 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.Crypt 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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