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

What is Trojan.Agent.CGDB infection?

In this post you will certainly discover regarding the definition of Trojan.Agent.CGDB and its unfavorable influence on your computer. Such ransomware are a form of malware that is elaborated by online fraudulences to require paying the ransom money by a sufferer.

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In the majority of the cases, Trojan.Agent.CGDB infection will advise its sufferers to initiate funds move for the function of neutralizing the changes that the Trojan infection has actually introduced to the sufferer’s gadget.

Trojan.Agent.CGDB Summary

These adjustments can be as follows:

  • 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.
  • A process created a hidden window;
  • Creates an excessive number of UDP connection attempts to external IP addresses;
  • Uses Windows utilities for basic functionality;
  • Executed a process and injected code into it, probably while unpacking;
  • Exhibits behavior characteristic of Cerber ransomware;
  • Attempts to execute a binary from a dead or sinkholed URL;
  • Writes a potential ransom message to disk;
  • EternalBlue behavior. Allows cyber threat actors to remotely execute arbitrary code and gain access to a network by sending specially crafted packets.

    This is has made EternalBlue trick popular with various malware, such as Trickbot, a modular banking trojan, as well as CoinMiner and WannaMine, crypto miners that use the EternalBlue exploit in order to gain access to computing power to mine cryptocurrencies.

  • Attempts to access Bitcoin/ALTCoin wallets;
  • Generates some ICMP traffic;
  • 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.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the files found on the target’s hard drive — so the victim can no more use the data;
  • Preventing normal 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.


One of the most common networks whereby Trojan.Agent.CGDB Ransomware are injected 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 a repercussion of user winding up on a resource that holds a harmful software application;

As soon as the Trojan is effectively injected, it will either cipher the data on the sufferer’s computer or prevent the tool from operating in a proper manner – while likewise putting a ransom money note that states the need for the targets to impact the settlement for the purpose of decrypting the files or recovering the documents system back to the initial condition. In most instances, the ransom money note will turn up when the customer reboots the COMPUTER after the system has currently been damaged.

Trojan.Agent.CGDB circulation networks.

In different corners of the globe, Trojan.Agent.CGDB expands by leaps and also bounds. Nonetheless, the ransom money notes and techniques of extorting the ransom amount may vary depending on specific neighborhood (regional) setups. The ransom notes and also tricks of extorting the ransom money quantity may vary depending on certain neighborhood (local) settings.

Ransomware injection

As an example:

    Faulty notifies about unlicensed software application.

    In certain locations, the Trojans usually wrongfully report having actually discovered some unlicensed applications allowed on the sufferer’s gadget. The alert then requires the user to pay the ransom.

    Faulty statements concerning illegal material.

    In countries where software program piracy is much less prominent, this approach is not as effective for the cyber frauds. Alternatively, the Trojan.Agent.CGDB popup alert might wrongly assert to be stemming from a police establishment and will report having situated child porn or various other prohibited data on the gadget.

    Trojan.Agent.CGDB popup alert might falsely claim to be deriving from a law enforcement institution and also will certainly report having located kid porn or other prohibited information on the device. The alert will likewise include a demand for the customer to pay the ransom.

Technical details

File Info:

crc32: 1724F0BA
md5: 131d1e05649216da7d3aac86cb0cb1ed
name: upload_file
sha1: 3fccbf64126d9c4e7880e868722310d4aded9798
sha256: 0d56de71fd541b777edbd246e23360cbcab6bddd2ed18ac078fcf29533738a93
sha512: 684f670f7b052e32b499164376fb517c665b58d4380ec5df600a1a43c3a904ba07a152f0f1b0705751e3951b2bc0affdb8590663116c3b43853ab7f5d3e039e9
ssdeep: 12288:2A9qvbK+YMWshiJurvJXD5ygDziPlHbHL+y6:QvW+6ADJTgyiPlHbr+y6
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0409 0x04b0
LegalCopyright: Euronics
InternalName: Presnings
FileVersion: 9.05.0006
CompanyName: Euronics
LegalTrademarks: Euronics
Comments: Euronics
ProductName: Euronics
ProductVersion: 9.05.0006
FileDescription: Euronics
OriginalFilename: Presnings.exe

Trojan.Agent.CGDB also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetectVM.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.Agent.CGDB
CAT-QuickHeal Ransom.Zerber.V3
McAfee PWSZbot-FAYC!131D1E056492
VIPRE LooksLike.Win32.Beebone.a (v)
Sangfor Malware
K7AntiVirus Trojan ( 0050bb771 )
K7GW Trojan ( 0050bb771 )
Cybereason malicious.564921
Arcabit Trojan.Agent.CGDB
Invincea ML/PE-A + Mal/FareitVB-M
Cyren W32/S-27a9827b!Eldorado
Symantec ML.Attribute.HighConfidence
APEX Malicious
Kaspersky Trojan.Win32.VBKryjetor.alcp
BitDefender Trojan.Agent.CGDB
NANO-Antivirus Trojan.Win32.VBKryjetor.enwiee
Avast Win32:Malware-gen
Rising Ransom.Cerber!8.3058 (TFE:3:Cwe6T9mReeS)
Ad-Aware Trojan.Agent.CGDB
Emsisoft Trojan.Agent.CGDB (B)
F-Secure Heuristic.HEUR/AGEN.1112811
DrWeb Trojan.Encoder.10731
Sophos Mal/FareitVB-M
SentinelOne DFI – Malicious PE
Avira HEUR/AGEN.1112811
Antiy-AVL Trojan/Win32.TSGeneric
AegisLab Trojan.Win32.VBKryjetor.4!c
ZoneAlarm Trojan.Win32.VBKryjetor.alcp
GData Trojan.Agent.CGDB
Cynet Malicious (score: 100)
AhnLab-V3 Win-Trojan/VBKrypt.RP.X1764
Acronis suspicious
BitDefenderTheta AI:Packer.230EAEDE21
ALYac Trojan.Agent.CGDB
MAX malware (ai score=89)
Cylance Unsafe
ESET-NOD32 a variant of Win32/Injector.DNZQ
TrendMicro-HouseCall TSPY_HPLOKI.SMDS
Tencent Malware.Win32.Gencirc.10bb9d18
Yandex Trojan.VBKryjetor!
Ikarus Trojan.Agent
eGambit Unsafe.AI_Score_99%
Fortinet W32/GenKryptik.CJGS!tr
AVG Win32:Malware-gen
Panda Trj/GdSda.A
CrowdStrike win/malicious_confidence_100% (D)

How to remove Trojan.Agent.CGDB ransomware?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
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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 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 Trojan.Agent.CGDB 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.Agent.CGDB you can always ask me in the comments for getting help.

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  1. GridinSoft Anti-Malware Review from HowToFix site:
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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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