Trojan:Win32/Occamy.C7B

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

What is Trojan:Win32/Occamy.C7B infection?

In this article you will discover concerning the interpretation of Trojan:Win32/Occamy.C7B and also its unfavorable influence on your computer. Such ransomware are a type of malware that is specified by online fraudulences to require paying the ransom by a victim.

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Most of the situations, Trojan:Win32/Occamy.C7B ransomware will advise its victims to initiate funds transfer for the function of reducing the effects of the modifications that the Trojan infection has introduced to the victim’s device.

Trojan:Win32/Occamy.C7B Summary

These modifications 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.
  • Attempts to connect to a dead IP:Port (1 unique times);
  • 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.
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • A process created a hidden window;
  • Performs some HTTP requests;
  • Uses Windows utilities for basic functionality;
  • Attempts to delete volume shadow copies;
  • Modifies boot configuration settings;
  • Checks the version of Bios, possibly for anti-virtualization;
  • Detects VirtualBox through the presence of a registry key;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Clears Windows events or logs;
  • Attempts to disable UAC.

    User Account Control or just UAC is a part of the Windows security system which prevents apps from making unwanted changes on PC.

    UAC includes several technologies 1:

    • File and egistry Virtualization;
    • Same-desktop Elevation;
    • Filtered Token;
    • User Interface Privilege Isolation;
    • Protected Mode Internet Explorer;
    • Installer Detection;
  • Attempts to modify UAC prompt behavior;
  • 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 documents found on the target’s hard drive — so the victim can no longer utilize the data;
  • Preventing normal accessibility to the victim’s workstation;
Similar behavior
Related domains
z.whorecord.xyz Trojan-Ransom.Avaddon
a.tomx.xyz Trojan-Ransom.Avaddon
ocsp.digicert.com Trojan-Ransom.Avaddon
www.msftconnecttest.com Trojan-Ransom.Avaddon
api.myip.com Trojan-Ransom.Avaddon

Trojan:Win32/Occamy.C7B

The most regular networks whereby Trojan:Win32/Occamy.C7B 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 consequence of customer winding up on a resource that hosts a harmful software;

As soon as the Trojan is efficiently injected, it will certainly either cipher the data on the target’s PC or stop the tool from operating in an appropriate way – while likewise putting a ransom note that points out the requirement for the sufferers to effect the settlement for the function of decrypting the files or restoring the documents system back to the preliminary problem. In the majority of circumstances, the ransom money note will certainly turn up when the client restarts the COMPUTER after the system has currently been harmed.

Trojan:Win32/Occamy.C7B distribution networks.

In various edges of the globe, Trojan:Win32/Occamy.C7B expands by jumps and also bounds. Nonetheless, the ransom money notes as well as techniques of obtaining the ransom money amount might vary depending upon certain local (regional) setups. The ransom money notes and also methods of obtaining the ransom quantity may differ depending on particular neighborhood (local) settings.

Ransomware injection

For instance:

    Faulty informs concerning unlicensed software.

    In particular locations, the Trojans usually wrongfully report having actually identified some unlicensed applications allowed on the sufferer’s tool. The sharp then demands the customer to pay the ransom.

    Faulty declarations concerning illegal material.

    In nations where software program piracy is less popular, this technique is not as reliable for the cyber scams. Conversely, the Trojan:Win32/Occamy.C7B popup alert may falsely claim to be deriving from a law enforcement establishment as well as will report having located child porn or other illegal information on the gadget.

    Trojan:Win32/Occamy.C7B popup alert may incorrectly declare to be deriving from a regulation enforcement establishment and also will report having located child porn or various other unlawful information on the tool. The alert will likewise consist of a demand for the individual to pay the ransom.

Technical details

File Info:

crc32: 8BC9A59E
md5: 6ff1ca648505fe8bea6b4a26616b9722
name: upload_file
sha1: 7020b4d9e700b697d507a61bffea12c9475a23d2
sha256: 7b7c16367746efe7583ae46235b2f062ce44602dda990c9a11a730d619b8d365
sha512: e65d67e22807e1a539997bd763fc6063226fce207c57b3b0316ef7640471f460016fa5f58feb006ff96dd7a2cf5bcff7c17f0af763e8518431fe13ce6d8c9db2
ssdeep: 98304:zDAjjvoF+Cp+/bbbbp7FO1gTL9M5gmoZHOoOVsHalI:zuvAObbbbp78+VwzV0alI
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: xa9 Microsoft Corporation. All rights reserved.
InternalName: taskhost.exe
FileVersion: 10.0.17763.831 (WinBuild.160101.0800)
CompanyName: Microsoft Corporation
ProductName: Microsoftxae Windowsxae Operating System
ProductVersion: 10.0.17763.831
FileDescription: Host Process for Windows Tasks
OriginalFilename: taskhost.exe
Translation: 0x0409 0x04b0

Trojan:Win32/Occamy.C7B also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetectVM.malware1
MicroWorld-eScan Trojan.GenericKD.34206496
FireEye Trojan.GenericKD.34206496
CAT-QuickHeal Trojan.CKGENERIC
McAfee GenericRXLN-FP!6FF1CA648505
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Malware
K7AntiVirus Trojan ( 0056a48c1 )
BitDefender Trojan.GenericKD.34206496
K7GW Trojan ( 0056a48c1 )
Symantec ML.Attribute.HighConfidence
APEX Malicious
Avast Win32:Malware-gen
GData Trojan.GenericKD.34206496
Kaspersky Trojan.Win32.DelShad.dpf
Alibaba Trojan:Win32/DelShad.dd8c5fd0
NANO-Antivirus Virus.Win32.Gen.ccmw
AegisLab Trojan.Multi.Generic.4!c
Tencent Win32.Trojan.Delshad.Wvbd
Endgame malicious (high confidence)
Emsisoft Trojan.GenericKD.34206496 (B)
F-Secure Trojan.TR/Crypt.FKM.Gen
Zillya Trojan.Themida.Win32.54360
TrendMicro TROJ_GEN.R049C0WGM20
Trapmine suspicious.low.ml.score
Sophos Mal/Generic-S
Ikarus Trojan-Ransom.Avaddon
Webroot W32.Trojan.TR.Crypt.FKM
Avira TR/Crypt.FKM.Gen
MAX malware (ai score=88)
Antiy-AVL Trojan[Ransom]/Win32.Avaddon
Microsoft Trojan:Win32/Occamy.C7B
Arcabit Trojan.Generic.D209F320
ZoneAlarm Trojan.Win32.DelShad.dpf
ALYac Trojan.GenericKD.34206496
Ad-Aware Trojan.GenericKD.34206496
Malwarebytes Trojan.MalPack.Themida
Panda Generic Suspicious
ESET-NOD32 a variant of Win32/Packed.Themida.HNS
TrendMicro-HouseCall TROJ_GEN.R049C0WGM20
Rising Trojan.Fuery!8.EAFB (CLOUD)
SentinelOne DFI – Suspicious PE
Fortinet W32/DelShad.DPF!tr.ransom
BitDefenderTheta Gen:NN.ZexaF.34152.@N0@aq7RCxpi
AVG Win32:Malware-gen
Paloalto generic.ml
CrowdStrike win/malicious_confidence_100% (W)
Qihoo-360 Win32/Trojan.4dc

How to remove Trojan:Win32/Occamy.C7B virus?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
Reasons why I would recommend GridinSoft2

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.3.

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.C7B 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.C7B you can always ask me in the comments for getting help.

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References

  1. Microsoft Ignite: How to disable User Account Control (UAC) on Windows Server
  2. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  3. 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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