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

What is Trojan:Win32/Occamy.CA9 infection?

In this article you will locate regarding the interpretation of Trojan:Win32/Occamy.CA9 and its unfavorable effect on your computer. Such ransomware are a kind of malware that is clarified by on-line fraudulences to demand paying the ransom money by a sufferer.

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Most of the instances, Trojan:Win32/Occamy.CA9 ransomware will certainly advise its sufferers to launch funds transfer for the purpose of neutralizing the amendments that the Trojan infection has introduced to the sufferer’s device.

Trojan:Win32/Occamy.CA9 Summary

These alterations 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.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents situated on the target’s hard disk drive — so the target can no longer make use of the data;
  • Preventing regular 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.


One of the most normal networks where Trojan:Win32/Occamy.CA9 Ransomware are injected are:

  • By means of phishing e-mails;
  • As an effect of customer winding up on a resource that organizes a harmful software application;

As soon as the Trojan is successfully injected, it will certainly either cipher the information on the target’s computer or stop the tool from working in a correct fashion – while also placing a ransom money note that points out the requirement for the victims to effect the payment for the objective of decrypting the papers or bring back the documents system back to the preliminary condition. In most instances, the ransom money note will certainly turn up when the client reboots the COMPUTER after the system has currently been damaged.

Trojan:Win32/Occamy.CA9 circulation channels.

In various edges of the world, Trojan:Win32/Occamy.CA9 grows by jumps and also bounds. Nonetheless, the ransom money notes and methods of obtaining the ransom money quantity may differ relying on specific regional (local) setups. The ransom money notes as well as methods of obtaining the ransom amount may differ depending on certain neighborhood (local) setups.

Ransomware injection

As an example:

    Faulty alerts regarding unlicensed software.

    In particular areas, the Trojans usually wrongfully report having actually discovered some unlicensed applications allowed on the victim’s device. The alert after that demands the user to pay the ransom money.

    Faulty declarations regarding prohibited material.

    In nations where software application piracy is less preferred, this approach is not as reliable for the cyber fraudulences. Additionally, the Trojan:Win32/Occamy.CA9 popup alert might incorrectly assert to be originating from a police establishment as well as will report having located child porn or various other unlawful information on the tool.

    Trojan:Win32/Occamy.CA9 popup alert might wrongly claim to be obtaining from a regulation enforcement organization as well as will certainly report having situated kid porn or other prohibited information on the tool. The alert will similarly consist of a demand for the user to pay the ransom money.

Technical details

File Info:

crc32: 9C1BFAC6
md5: 685c82f261622e782991f63ad31c5c9b
name: 685C82F261622E782991F63AD31C5C9B.mlw
sha1: 6ef8622db860b3f34eaac184c96af76122d8d522
sha256: a90124cd0606a1b2bc1577ac3c9db5f088f1c7692406441912f3ce34f0496b23
sha512: 6a1be921e45ca930f9d7c694270f9825b419f602d580598515900d2d88c78a2b1ddf9b6dcf1518250c8c58e90e9b596f8e0de2655abd34535f440720a0132a63
ssdeep: 6144:6Or6+HbdRH/3FYYLZZoANLYOZEOHHrpm1XUZLxEZEOHHrpm1XUZLxaLb26Pd6:6Oe+ZRH/VYin2StLpm1EwtLpm1EuLbf6
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: xa9 Microsoft Corporation. All rights reserved.
InternalName: msinfo.dll
FileVersion: 6.1.7601.17514 (win7sp1_rtm.101119-1850)
CompanyName: Microsoft Corporation
ProductName: Microsoftxae Windowsxae Operating System
ProductVersion: 6.1.7601.17514
FileDescription: System Information
OriginalFilename: msinfo.dll
Translation: 0x0409 0x04b0

Trojan:Win32/Occamy.CA9 also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
Cynet Malicious (score: 100)
ALYac Trojan.Generic.23079031
Cylance Unsafe
Sangfor Win.Worm.Autorunvb-7053731-0
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Trojan:Win32/PornoBlocker.eb89a63a
Cybereason malicious.261622
Cyren W32/S-a39c9901!Eldorado
Symantec ML.Attribute.HighConfidence
APEX Malicious
Avast Win32:Crypt-KOW [Trj]
ClamAV Win.Worm.Autorunvb-7053731-0
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.Generic.23079031
NANO-Antivirus Virus.Win32.Virut-Gen.bwpxnc
MicroWorld-eScan Trojan.Generic.23079031
Tencent Win32.Trojan.Generic.Woqe
Ad-Aware Trojan.Generic.23079031
BitDefenderTheta Gen:NN.ZexaF.34738.uq0@aGuOmlii
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.Virut.fh
Emsisoft Trojan.Generic.23079031 (B)
SentinelOne Static AI – Malicious PE
Microsoft Trojan:Win32/Occamy.CA9
AegisLab Virus.Win32.Virut.kYQV
GData Trojan.Generic.23079031
Acronis suspicious
McAfee Artemis!685C82F26162
Malwarebytes Sality.Virus.FileInfector.DDS
Ikarus Trojan-Ransom.PornoBlocker
AVG Win32:Crypt-KOW [Trj]

How to remove Trojan:Win32/Occamy.CA9 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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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.CA9 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/Occamy.CA9 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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