Trojan.Crypt (A)

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

What is Trojan.Crypt (A) infection?

In this article you will discover concerning the interpretation of Trojan.Crypt (A) and also its unfavorable impact on your computer system. Such ransomware are a type of malware that is elaborated by on-line frauds to require paying the ransom by a target.

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Most of the situations, Trojan.Crypt (A) virus will instruct its victims to initiate funds move for the function of neutralizing the modifications that the Trojan infection has actually presented to the target’s tool.

Trojan.Crypt (A) 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.
  • Attempts to connect to a dead IP:Port (2 unique times);
  • 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.;
  • A process created a hidden window;
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic;
  • Performs some HTTP requests;
  • 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!
  • Exhibits possible ransomware file modification behavior;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents found on the sufferer’s hard disk — so the victim can no longer use the data;
  • Preventing regular access to the sufferer’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 (A)

One of the most common channels where Trojan.Crypt (A) are infused are:

  • By ways of phishing emails;
  • As a repercussion of customer ending up on a source that organizes a harmful software application;

As quickly as the Trojan is effectively infused, it will certainly either cipher the information on the sufferer’s PC or avoid the gadget from operating in an appropriate manner – while also putting a ransom note that points out the need for the targets to impact the repayment for the objective of decrypting the files or recovering the data system back to the first problem. In the majority of instances, the ransom money note will certainly turn up when the client reboots the PC after the system has already been harmed.

Trojan.Crypt (A) circulation channels.

In various edges of the globe, Trojan.Crypt (A) grows by leaps and bounds. Nevertheless, the ransom money notes and tricks of extorting the ransom quantity might differ depending upon specific neighborhood (regional) setups. The ransom money notes and also methods of obtaining the ransom amount may differ depending on certain regional (local) settings.

Ransomware injection

For example:

    Faulty alerts about unlicensed software.

    In certain locations, the Trojans usually wrongfully report having spotted some unlicensed applications enabled on the victim’s device. The alert after that demands the individual to pay the ransom money.

    Faulty statements about illegal material.

    In countries where software program piracy is less prominent, this technique is not as reliable for the cyber fraudulences. Additionally, the Trojan.Crypt (A) popup alert may wrongly assert to be originating from a law enforcement organization and will certainly report having situated kid porn or various other unlawful data on the gadget.

    Trojan.Crypt (A) popup alert might incorrectly assert to be acquiring from a legislation enforcement organization as well as will report having situated youngster porn or various other prohibited information on the tool. The alert will similarly have a requirement for the customer to pay the ransom.

Technical details

File Info:

crc32: 433A57A0
md5: e3648731a36105980f5fae6b4afe614b
name: officeupd.fft
sha1: 85db743d14fbd83f893ec34dbdf57d0344e16156
sha256: 877c735650488f81807239a0ca564c8faa660a8c9141a9aba2049b9fe1d5b2fb
sha512: dcf4742b7c059f4580d9bbee1c5e444eb37bc1ab4c183bb7697ac33cc8d74a2d2ad9016ba1dc6429deb31d7fc1cd101d3544806411682d49147b4fc08b0eea2f
ssdeep: 12288:3qhfOhBJUmIa4cQ5VSdQpRSZZLPwPqnk7HLhPQ9dLz6D:I9dXrEEw/PwP4k71I9dLz6D
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Trojan.Crypt (A) also known as:

GridinSoftTrojan.Ransom.Gen
DrWebTrojan.Encoder.30215
MicroWorld-eScanTrojan.GenericKD.32762293
CAT-QuickHealTrojanRansom.Agent
McAfeeArtemis!E3648731A361
SangforMalware
CrowdStrikewin/malicious_confidence_100% (W)
BitDefenderTrojan.GenericKD.32762293
K7GWTrojan ( 0055c6211 )
K7AntiVirusTrojan ( 0055c6211 )
TrendMicroRansom.Win32.MAZE.E
BitDefenderThetaGen:NN.ZexaF.32519.fvW@a0xk7!di
CyrenW32/Trojan.VBUD-1977
SymantecDownloader
ESET-NOD32a variant of Win32/Kryptik.GYWN
APEXMalicious
Paloaltogeneric.ml
ClamAVWin.Trojan.Agent-7412843-0
KasperskyTrojan-Ransom.Win32.Agent.avzu
NANO-AntivirusTrojan.Win32.Encoder.gjssqi
RisingTrojan.Generic@ML.93 (RDMK:rUN0MZOa0Bol/tTHexDcew)
Ad-AwareTrojan.GenericKD.32762293
EmsisoftTrojan.Crypt (A)
ComodoMalware@#gaxzyr3ioj2h
F-SecureTrojan.TR/Crypt.Agent.ykspw
Invinceaheuristic
McAfee-GW-EditionBehavesLike.Win32.Ransomware.tt
Trapminemalicious.high.ml.score
FireEyeGeneric.mg.e3648731a3610598
SophosMal/Generic-S
IkarusTrojan.Win32.Inject
WebrootW32.Adware.Gen
AviraTR/Crypt.Agent.ykspw
Antiy-AVLTrojan[Ransom]/Win32.Agent
Endgamemalicious (high confidence)
ArcabitTrojan.Generic.D1F3E9B5
ZoneAlarmTrojan-Ransom.Win32.Agent.avzu
MicrosoftTrojan:Win32/Occamy.C
AhnLab-V3Malware/Win32.Ransom.C3606656
Acronissuspicious
VBA32TrojanRansom.Agent
ALYacTrojan.Ransom.ChaCha
MAXmalware (ai score=85)
MalwarebytesTrojan.Injector
PandaTrj/CI.A
TrendMicro-HouseCallRansom.Win32.MAZE.E
SentinelOneDFI – Malicious PE
GDataTrojan.GenericKD.32762293
AVGFileRepMalware
Cybereasonmalicious.d14fbd
AvastFileRepMalware
Qihoo-360HEUR/QVM19.1.81F7.Malware.Gen

How to remove Trojan.Crypt (A) 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 (A) 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 Trojan.Crypt (A) 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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