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

What is Trojan:Win32/Occamy.C2B infection?

In this short article you will find about the interpretation of Trojan:Win32/Occamy.C2B as well as its unfavorable influence on your computer system. Such ransomware are a type of malware that is clarified by online fraudulences to require paying the ransom by a victim.

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In the majority of the cases, Trojan:Win32/Occamy.C2B ransomware will certainly instruct its victims to initiate funds move for the purpose of counteracting the modifications that the Trojan infection has introduced to the target’s gadget.

Trojan:Win32/Occamy.C2B Summary

These alterations 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 attempted to delay the analysis task.;
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic;
  • Performs some HTTP requests;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Executed a process and injected code into it, probably while unpacking;
  • 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!
  • Steals private information from local Internet browsers;
  • 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.
  • Harvests credentials from local FTP client softwares;
  • Harvests information related to installed instant messenger clients;
  • Harvests information related to installed mail clients;
  • 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.
  • Ciphering the documents situated on the sufferer’s hard drive — so the sufferer can no longer use the information;
  • Preventing normal accessibility to the victim’s workstation;
Similar behavior
Related domains Ransom.Wannacry Ransom.Wannacry


The most typical channels through which Trojan:Win32/Occamy.C2B are injected are:

  • By means of phishing e-mails;
  • As a consequence of customer ending up on a resource that organizes a harmful software program;

As soon as the Trojan is successfully infused, it will either cipher the information on the target’s computer or prevent the device from operating in a correct way – while additionally putting a ransom note that states the need for the victims to effect the repayment for the purpose of decrypting the files or recovering the documents system back to the preliminary problem. In most circumstances, the ransom money note will show up when the customer restarts the PC after the system has actually currently been harmed.

Trojan:Win32/Occamy.C2B circulation networks.

In various corners of the globe, Trojan:Win32/Occamy.C2B expands by jumps and bounds. Nonetheless, the ransom money notes as well as techniques of extorting the ransom quantity may vary depending upon particular local (regional) setups. The ransom notes as well as methods of obtaining the ransom amount may vary depending on particular regional (regional) settings.

Ransomware injection

For example:

    Faulty alerts concerning unlicensed software program.

    In particular areas, the Trojans typically wrongfully report having found some unlicensed applications enabled on the victim’s tool. The alert after that requires the user to pay the ransom money.

    Faulty statements concerning unlawful web content.

    In countries where software application piracy is less preferred, this method is not as effective for the cyber frauds. Alternatively, the Trojan:Win32/Occamy.C2B popup alert may incorrectly claim to be originating from a law enforcement organization and will certainly report having located child pornography or other unlawful information on the gadget.

    Trojan:Win32/Occamy.C2B popup alert might falsely assert to be obtaining from a legislation enforcement establishment and also will certainly report having located child porn or other prohibited data on the device. The alert will similarly contain a need for the individual to pay the ransom.

Technical details

File Info:

crc32: E0B29E2E
md5: 81b315c7a343718a294ae8e29e18d827
name: tmp9tz38def
sha1: 86fb4bf778998e27dbb9e4e739bd9547957bbae5
sha256: 2b216fc0d90426beaf69ebe7effce88f58110f038a55c144f001c9a2a6b8bba6
sha512: 06e9d00a505798a0e2e5e48541f488bafcf669e3249a6ff2db657100ed8f6f0e5b05c948e0bbb7b3ee56c5421e30da21a2f095f6c75ffacdbba46e99d2f5b858
ssdeep: 24576:0AHnh+eWsN3skA4RV1Hom2KXMmHaTXaB+TodkBll2um6v5:Dh+ZkldoPK8YaTXaB+Tod+lcC
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0809 0x04b0

Trojan:Win32/Occamy.C2B also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetectVM.malwareA
MicroWorld-eScan Trojan.GenericKD.43348810
ALYac Spyware.LokiBot
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Malware
K7AntiVirus Trojan ( 00568d5a1 )
BitDefender Trojan.GenericKD.43348810
K7GW Trojan ( 00568d5a1 )
TrendMicro Trojan.Win32.WACATAC.USXVPFG20
F-Prot W32/Autoit.G.gen!Eldorado
Symantec Ransom.Wannacry
ESET-NOD32 a variant of Win32/Injector.Autoit.FJC
TrendMicro-HouseCall Trojan.Win32.WACATAC.USXVPFG20
Avast Script:SNH-gen [Trj]
GData Trojan.GenericKD.43348810
Kaspersky Backdoor.Win32.Androm.ubub
Alibaba Backdoor:Win32/Androm.0c4e7306
AegisLab Hacktool.Win32.Gamehack.3!e
APEX Malicious
Tencent Win32.Backdoor.Androm.Eadf
Ad-Aware Trojan.GenericKD.43348810
Emsisoft Trojan.GenericKD.43348810 (B)
Comodo Malware@#1uvkgwh8kcab0
F-Secure Trojan.TR/AD.LokiBot.rultc
DrWeb Trojan.AutoIt.907
Invincea heuristic
Sophos Mal/Generic-S
Ikarus Trojan-Spy.Keylogger.AgentTesla
Cyren W32/Autoit.G.gen!Eldorado
Avira TR/AD.LokiBot.rultc
MAX malware (ai score=99)
Arcabit Trojan.Generic.D295734A
ZoneAlarm Backdoor.Win32.Androm.ubub
Microsoft Trojan:Win32/Occamy.C2B
Cynet Malicious (score: 100)
McAfee Artemis!81B315C7A343
VBA32 Trojan.Wacatac
Malwarebytes Trojan.MalPack.AutoIt.Generic
Rising Trojan.Obfus/Autoit!1.C045 (CLASSIC)
eGambit Unsafe.AI_Score_98%
Fortinet AutoIt/Injector.FIC!tr
MaxSecure Trojan.Malware.300983.susgen
AVG Script:SNH-gen [Trj]
CrowdStrike win/malicious_confidence_90% (W)
Qihoo-360 Win32/Backdoor.60b

How to remove Trojan:Win32/Occamy.C2B 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:Win32/Occamy.C2B 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.C2B 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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