Trojan.Win32.Chapak.bho

What is Trojan.Win32.Chapak.bho infection?

In this article you will discover about the interpretation of Trojan.Win32.Chapak.bho as well as its adverse influence on your computer. Such ransomware are a form of malware that is elaborated by on the internet fraudulences to require paying the ransom by a sufferer.

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Most of the instances, Trojan.Win32.Chapak.bho infection will certainly instruct its targets to initiate funds move for the function of reducing the effects of the amendments that the Trojan infection has introduced to the victim’s gadget.

Trojan.Win32.Chapak.bho 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.
  • 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.
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses Windows utilities for basic functionality;
  • 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
  • Checks the CPU name from registry, possibly for anti-virtualization;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents situated on the victim’s hard disk — so the sufferer can no more make use of the data;
  • Preventing normal accessibility to the victim’s workstation;

Trojan.Win32.Chapak.bho

One of the most regular channels through which Trojan.Win32.Chapak.bho 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 a consequence of user ending up on a source that holds a harmful software;

As soon as the Trojan is effectively infused, it will certainly either cipher the information on the sufferer’s computer or prevent the tool from operating in a proper fashion – while likewise placing a ransom note that mentions the demand for the victims to effect the settlement for the purpose of decrypting the records or bring back the file system back to the initial problem. In most instances, the ransom note will certainly turn up when the customer reboots the COMPUTER after the system has actually already been damaged.

Trojan.Win32.Chapak.bho circulation channels.

In various edges of the globe, Trojan.Win32.Chapak.bho grows by leaps and bounds. Nevertheless, the ransom money notes and also methods of extorting the ransom money quantity may vary depending upon certain neighborhood (regional) settings. The ransom money notes as well as techniques of extorting the ransom amount might differ depending on specific neighborhood (regional) setups.

Ransomware injection

As an example:

    Faulty informs concerning unlicensed software.

    In specific areas, the Trojans often wrongfully report having detected some unlicensed applications made it possible for on the target’s tool. The alert after that requires the customer to pay the ransom money.

    Faulty statements concerning illegal material.

    In nations where software application piracy is much less preferred, this technique is not as efficient for the cyber fraudulences. Conversely, the Trojan.Win32.Chapak.bho popup alert might wrongly claim to be originating from a law enforcement institution as well as will report having located child porn or various other prohibited data on the tool.

    Trojan.Win32.Chapak.bho popup alert may wrongly claim to be obtaining from a law enforcement establishment as well as will report having located kid porn or various other illegal information on the tool. The alert will in a similar way have a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: 5AAD2248
md5: f09ec16212e7c834ef7b46a37f1ceede
name: F09EC16212E7C834EF7B46A37F1CEEDE.mlw
sha1: fcbf28b6358e35f53ccd8a0795a79dfbbeb23bbd
sha256: 7efc6cf9294d4dea13d2818be263492d0018c801d173e7b5f35eccf8e71440e0
sha512: fc292eb9a6bb75c748390db8815dc37265c702f301ececa9cd5951ce3755cb5561dde03e8aceb5393bea041625f1893ead5581d5e491e5a13528690babbfbfed
ssdeep: 6144:iVL6LPN8xbdBKL5b9D6UC2oqg/b6zsozmFJX70kcH+:QeLPNadmgfNJ2PCee
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Trojan.Win32.Chapak.bho also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 0052cc321 )
Elastic malicious (high confidence)
DrWeb Trojan.MulDrop8.1723
Cynet Malicious (score: 100)
CAT-QuickHeal Trojan.Chapak.A03
ALYac Trojan.Ransom.GandCrab.Gen.2
Cylance Unsafe
Zillya Trojan.Chapak.Win32.2574
Sangfor Win.Packed.Gandcrab-6552923-4
CrowdStrike win/malicious_confidence_100% (D)
K7GW Trojan ( 0052cc321 )
Cybereason malicious.212e7c
Cyren W32/Gandcrab.BH.gen!Eldorado
Symantec Packed.Generic.525
ESET-NOD32 a variant of Win32/Kryptik.GEFD
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Packed.Gandcrab-6552923-4
Kaspersky Trojan.Win32.Chapak.bho
BitDefender Trojan.Ransom.GandCrab.Gen.2
NANO-Antivirus Trojan.Win32.Chapak.eyvlzi
ViRobot Trojan.Win32.GandCrab.Gen.A
SUPERAntiSpyware Trojan.Agent/Gen-Malagent
MicroWorld-eScan Trojan.Ransom.GandCrab.Gen.2
Tencent Malware.Win32.Gencirc.10c8d0e3
Ad-Aware Trojan.Ransom.GandCrab.Gen.2
Sophos ML/PE-A + Mal/Agent-AUL
Comodo TrojWare.Win32.Suloc.D@7kjiha
BitDefenderTheta Gen:NN.ZexaF.34628.ouX@au@u1Hei
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom.Win32.GANDCRAB.SMLA.hp
FireEye Generic.mg.f09ec16212e7c834
Emsisoft Trojan.Ransom.GandCrab.Gen.2 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Chapak.eq
Avira TR/Dropper.Gen
Microsoft Ransom:Win32/GandCrab.AO
GData Trojan.Ransom.GandCrab.Gen.2
TACHYON Trojan/W32.Chapak.242696
AhnLab-V3 Win-Trojan/Gandcrab.Exp
Acronis suspicious
McAfee Packed-FBN!F09EC16212E7
MAX malware (ai score=99)
VBA32 Trojan.Chapak
Malwarebytes Trojan.MalPack
Panda Trj/Genetic.gen
TrendMicro-HouseCall Ransom.Win32.GANDCRAB.SMLA.hp
Rising Trojan.Kryptik!1.B0B1 (CLOUD)
Yandex Trojan.GenAsa!0T2s2wx5vcM
Ikarus Trojan.Kryptik
MaxSecure Ransomeware.CRAB.gen
Fortinet W32/Kryptik.HCUD!tr
AVG Win32:Malware-gen
Qihoo-360 Win32/Trojan.224

How to remove Trojan.Win32.Chapak.bho 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.

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Press “Install” button.

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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.Chapak.bho 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.Chapak.bho 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/products/

About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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