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

What is Trojan:Win32/Occamy.CDA infection?

In this post you will certainly locate concerning the meaning of Trojan:Win32/Occamy.CDA and its adverse influence on your computer. Such ransomware are a form of malware that is clarified by on-line frauds to require paying the ransom by a victim.

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In the majority of the situations, Trojan:Win32/Occamy.CDA virus will advise its victims to launch funds transfer for the function of counteracting the amendments that the Trojan infection has actually introduced to the victim’s tool.

Trojan:Win32/Occamy.CDA Summary

These modifications can be as follows:

  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • 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.
  • Ciphering the records located on the sufferer’s hard disk drive — so the sufferer can no more utilize the information;
  • Preventing routine access to the sufferer’s workstation;
Similar behavior
Related domains Trojan-Ransom.FileCrypter Trojan-Ransom.FileCrypter


The most normal channels whereby Trojan:Win32/Occamy.CDA Trojans are infused 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 an effect of individual ending up on a source 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 device from working in a proper fashion – while additionally putting a ransom money note that states the need for the sufferers to impact the repayment for the function of decrypting the files or restoring the documents system back to the first condition. In the majority of instances, the ransom note will certainly show up when the customer restarts the PC after the system has actually currently been damaged.

Trojan:Win32/Occamy.CDA circulation channels.

In various corners of the world, Trojan:Win32/Occamy.CDA expands by jumps and also bounds. Nonetheless, the ransom money notes and also techniques of extorting the ransom money amount may differ relying on specific local (local) setups. The ransom money notes as well as techniques of obtaining the ransom amount may vary depending on specific regional (local) settings.

Ransomware injection

For instance:

    Faulty signals about unlicensed software application.

    In specific locations, the Trojans typically wrongfully report having found some unlicensed applications enabled on the sufferer’s device. The alert then requires the customer to pay the ransom.

    Faulty declarations concerning prohibited material.

    In nations where software program piracy is less popular, this method is not as reliable for the cyber frauds. Conversely, the Trojan:Win32/Occamy.CDA popup alert might incorrectly declare to be deriving from a law enforcement organization as well as will certainly report having located youngster pornography or various other prohibited data on the device.

    Trojan:Win32/Occamy.CDA popup alert might wrongly assert to be deriving from a legislation enforcement institution and also will report having situated kid porn or various other illegal information on the tool. The alert will similarly consist of a need for the user to pay the ransom.

Technical details

File Info:

crc32: C15E4D05
md5: c677aee79bed8295e38cec194e324a7b
name: C677AEE79BED8295E38CEC194E324A7B.mlw
sha1: 42db9d7113f91e932d12f1f113f2634a410e2d51
sha256: da166afbf70021609a3661b1f7c4ad264f9e9ad2f7343c75c12369b6af9b3c9c
sha512: 430a8b5beb43e6414212d8ced650170479235eb84cc9e059f8a1a254f5b7b0734b1e09e7ffc216fb55d050af4d65249b97056281e4470b998c777c4e1ede0179
ssdeep: 3072:7YuLWApXCK+tDsslKXruXgS+klZscs2TitoJFe1jcUUfNs2jxRmr5JqY:7YmW4yhdHlKX9klFxTEoXeJGjxRwq
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: Copyright xa9 2018
Assembly Version:
InternalName: Absence.exe
ProductName: Absence
FileDescription: Absence
OriginalFilename: Absence.exe

Trojan:Win32/Occamy.CDA also known as:

GridinSoft Trojan.Ransom.Gen
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.MSILPerseus.177463
Qihoo-360 Win32/Trojan.Generic.b90
ALYac Gen:Variant.MSILPerseus.177463
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
BitDefender Gen:Variant.MSILPerseus.177463
Cybereason malicious.79bed8
BitDefenderTheta Gen:NN.ZemsilF.34590.km0@a0rtI!b
Symantec ML.Attribute.HighConfidence
Alibaba RiskWare:MSIL/FileCrypter.41237eb2
Avast Win32:Malware-gen
Rising Trojan.Cloxer!8.F54F (CLOUD)
Ad-Aware Gen:Variant.MSILPerseus.177463
Emsisoft Gen:Variant.MSILPerseus.177463 (B)
Comodo Malware@#140psbu5e6ixs
Sophos Mal/Generic-S
Ikarus Trojan-Ransom.FileCrypter
GData Gen:Variant.MSILPerseus.177463
Arcabit Trojan.MSILPerseus.D2B537
Microsoft Trojan:Win32/Occamy.CDA
Cynet Malicious (score: 100)
AhnLab-V3 Malware/Win32.RL_Generic.C3580066
McAfee Artemis!C677AEE79BED
Malwarebytes MachineLearning/Anomalous.95%
APEX Malicious
ESET-NOD32 a variant of MSIL/Riskware.GameHack.BX
SentinelOne Static AI – Malicious PE
eGambit Unsafe.AI_Score_99%
Fortinet PossibleThreat
AVG Win32:Malware-gen
Panda Trj/GdSda.A
CrowdStrike win/malicious_confidence_80% (D)
MaxSecure Trojan.Malware.300983.susgen

How to remove Trojan:Win32/Occamy.CDA virus?

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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There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft2.

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:Win32/Occamy.CDA 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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Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Trojan:Win32/Occamy.CDA you can always ask me in the comments for getting help.

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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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