Trojan:Win32/Occamy.CEB

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

What is Trojan:Win32/Occamy.CEB infection?

In this post you will discover concerning the definition of Trojan:Win32/Occamy.CEB and also its negative impact on your computer. Such ransomware are a type of malware that is specified by online fraudulences to demand paying the ransom money by a sufferer.

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In the majority of the instances, Trojan:Win32/Occamy.CEB virus will certainly advise its sufferers to launch funds move for the purpose of counteracting the amendments that the Trojan infection has actually presented to the target’s tool.

Trojan:Win32/Occamy.CEB Summary

These alterations can be as complies with:

  • 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.
  • 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.
  • Installs itself for autorun at Windows startup. There is simple tactic using the Windows startup folder located at:
    C:\Users\[user-name]\AppData\Roaming\Microsoft\Windows\StartMenu\Programs\Startup. Shortcut links (.lnk extension) placed in this folder will cause Windows to launch the application each time [user-name] logs into Windows.

    The registry run keys perform the same action, and can be located in different locations:

    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers situated on the sufferer’s hard disk — so the target can no more make use of the data;
  • Preventing regular accessibility to the target’s workstation;

Trojan:Win32/Occamy.CEB

The most normal networks where Trojan:Win32/Occamy.CEB Ransomware are infused are:

  • By ways of phishing emails;
  • As a consequence of user ending up on a resource that holds a harmful software application;

As quickly as the Trojan is efficiently infused, it will either cipher the data on the target’s computer or stop the device from working in an appropriate way – while also positioning a ransom note that points out the requirement for the victims to impact the payment for the purpose of decrypting the papers or recovering the documents system back to the first problem. In a lot of circumstances, the ransom note will certainly show up when the customer restarts the PC after the system has currently been damaged.

Trojan:Win32/Occamy.CEB circulation networks.

In different edges of the globe, Trojan:Win32/Occamy.CEB expands by leaps and bounds. Nevertheless, the ransom notes as well as tricks of obtaining the ransom quantity may vary relying on particular neighborhood (regional) setups. The ransom notes and also techniques of obtaining the ransom money amount might differ depending on particular neighborhood (local) setups.

Ransomware injection

As an example:

    Faulty informs regarding unlicensed software application.

    In particular areas, the Trojans usually wrongfully report having identified some unlicensed applications made it possible for on the victim’s gadget. The sharp after that requires the customer to pay the ransom money.

    Faulty statements concerning illegal material.

    In countries where software program piracy is less preferred, this approach is not as reliable for the cyber frauds. Alternatively, the Trojan:Win32/Occamy.CEB popup alert might wrongly declare to be stemming from a police establishment and also will report having located youngster pornography or various other illegal information on the device.

    Trojan:Win32/Occamy.CEB popup alert may incorrectly declare to be obtaining from a law enforcement establishment as well as will certainly report having situated child porn or various other unlawful information on the device. The alert will likewise have a requirement for the customer to pay the ransom.

Technical details

File Info:

crc32: 45EB84C5
md5: af207729e1ed05e65886462fcc8a8e97
name: AF207729E1ED05E65886462FCC8A8E97.mlw
sha1: 06374d4953cb3191b3412a82d7452fb50f370447
sha256: eb61044d86a1e344a52965cab800762b9c903290f805f2953442bea54cff28c0
sha512: f6112a0f9ade97cd4d7c5adecbcc55fc6c17cc907c9c9eb4c73c2b1a88b3101a33e8a111e8b59b4082880a7392814ce5c25c41f2bb8e35faa4df32f16ad4f475
ssdeep: 1536:RFVXId/zaiJFTP9+513/nv71BpQIW6X12MQHiV:RFi+G+513/nv7vpQd7CV
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

ProductVersion: 7.7.6.2
Translation: 0x0809 0x04b0

Trojan:Win32/Occamy.CEB also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Trojan ( 00543e471 )
Elastic malicious (high confidence)
Cynet Malicious (score: 90)
CAT-QuickHeal Trojan.Chapak
ALYac Trojan.GenericKD.40835295
Malwarebytes Trojan.MalPack.GS
Zillya Trojan.Chapak.Win32.42444
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Trojan:Win32/Chapak.2cfb555d
K7GW Trojan ( 00543e471 )
Cybereason malicious.9e1ed0
ESET-NOD32 a variant of Win32/Kryptik.GNRV
APEX Malicious
Avast Win32:PWSX-gen [Trj]
ClamAV Win.Packed.Azorult-7596348-0
Kaspersky Trojan.Win32.Chapak.blum
BitDefender Trojan.GenericKD.40835295
NANO-Antivirus Trojan.Win32.Chapak.flbbdz
MicroWorld-eScan Trojan.GenericKD.40835295
Tencent Win32.Trojan.Chapak.Lnxo
Ad-Aware Trojan.GenericKD.40835295
Sophos ML/PE-A + Mal/GandCrab-G
Comodo TrojWare.Win32.Ransom.Gandcrab.GC@7zlhhh
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom.Win32.GANDCRAB.SMKLI.hp
McAfee-GW-Edition BehavesLike.Win32.Generic.ch
FireEye Generic.mg.af207729e1ed05e6
Emsisoft Trojan.GenericKD.40835295 (B)
Jiangmin Trojan.Chapak.agx
Avira HEUR/AGEN.1139509
Microsoft Trojan:Win32/Occamy.CEB
AegisLab Trojan.Win32.Chapak.4!c
GData Trojan.GenericKD.40835295
AhnLab-V3 Malware/Gen.Generic.C2896255
McAfee Trojan-FPST!AF207729E1ED
MAX malware (ai score=84)
VBA32 BScope.Trojan.Chapak
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom.Win32.GANDCRAB.SMKLI.hp
Rising Trojan.Kryptik!8.8 (CLOUD)
Yandex Trojan.GenAsa!aFWqDe4RDGo
MaxSecure Ransomeware.GandCrypt.Gen
Fortinet W32/GenKryptik.CUPF!tr
AVG Win32:PWSX-gen [Trj]
Paloalto generic.ml
Qihoo-360 Win32/Trojan.Chapak.HwoCEpsA

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